diff --git a/.idea/codeStyles/Project.xml b/.idea/codeStyles/Project.xml
index 03c1a4dff8..a9c3d0e4d9 100644
--- a/.idea/codeStyles/Project.xml
+++ b/.idea/codeStyles/Project.xml
@@ -9,11 +9,15 @@
       <option name="BLANK_LINES_AROUND_BLOCK_WHEN_BRANCHES" value="1" />
       <option name="CODE_STYLE_DEFAULTS" value="KOTLIN_OFFICIAL" />
     </JetCodeStyleSettings>
+    <XML>
+      <option name="XML_TEXT_WRAP" value="0" />
+    </XML>
     <codeStyleSettings language="JAVA">
       <option name="METHOD_ANNOTATION_WRAP" value="0" />
       <option name="FIELD_ANNOTATION_WRAP" value="0" />
     </codeStyleSettings>
     <codeStyleSettings language="XML">
+      <option name="WRAP_ON_TYPING" value="0" />
       <indentOptions>
         <option name="CONTINUATION_INDENT_SIZE" value="4" />
       </indentOptions>
diff --git a/shared/src/main/java/info/nightscout/androidaps/utils/DateUtil.kt b/shared/src/main/java/info/nightscout/androidaps/utils/DateUtil.kt
index 5578a94a92..98555b846a 100644
--- a/shared/src/main/java/info/nightscout/androidaps/utils/DateUtil.kt
+++ b/shared/src/main/java/info/nightscout/androidaps/utils/DateUtil.kt
@@ -158,11 +158,15 @@ class DateUtil @Inject constructor(private val context: Context) {
         return DateTime(mills).toString(DateTimeFormat.forPattern(format))
     }
 
-    fun dayNameString(): String = minuteString(now())
+    fun amPm(): String = amPm(now())
+    fun amPm(mills: Long): String =
+        DateTime(mills).toString(DateTimeFormat.forPattern("a"))
+
+    fun dayNameString(): String = dayNameString(now())
     fun dayNameString(mills: Long): String =
         DateTime(mills).toString(DateTimeFormat.forPattern("E"))
 
-    fun dayString(): String = minuteString(now())
+    fun dayString(): String = dayString(now())
     fun dayString(mills: Long): String =
         DateTime(mills).toString(DateTimeFormat.forPattern("dd"))
 
diff --git a/wear/src/main/java/info/nightscout/androidaps/watchfaces/BaseWatchFace.kt b/wear/src/main/java/info/nightscout/androidaps/watchfaces/BaseWatchFace.kt
index 12ea214fac..899741a872 100644
--- a/wear/src/main/java/info/nightscout/androidaps/watchfaces/BaseWatchFace.kt
+++ b/wear/src/main/java/info/nightscout/androidaps/watchfaces/BaseWatchFace.kt
@@ -43,8 +43,6 @@ import info.nightscout.shared.logging.LTag
 import info.nightscout.shared.sharedPreferences.SP
 import info.nightscout.shared.weardata.EventData
 import info.nightscout.shared.weardata.EventData.ActionResendData
-import info.nightscout.shared.weardata.EventData.SingleBg
-import info.nightscout.shared.weardata.EventData.TreatmentData
 import io.reactivex.rxjava3.disposables.CompositeDisposable
 import io.reactivex.rxjava3.kotlin.plusAssign
 import lecho.lib.hellocharts.view.LineChartView
@@ -73,8 +71,8 @@ abstract class BaseWatchFace : WatchFace() {
 
     protected val singleBg get() = rawData.singleBg
     protected val status get() = rawData.status
-    protected val treatmentData get() = rawData.treatmentData
-    protected val graphData get() = rawData.graphData
+    private val treatmentData get() = rawData.treatmentData
+    private val graphData get() = rawData.graphData
 
     // Layout
     @LayoutRes abstract fun layoutResource(): Int
@@ -98,6 +96,7 @@ abstract class BaseWatchFace : WatchFace() {
     var mCOB2: TextView? = null
     var mBgi: TextView? = null
     var mLoop: TextView? = null
+    var mTimePeriod: TextView? = null
     var mDay: TextView? = null
     var mDayName: TextView? = null
     var mMonth: TextView? = null
@@ -245,7 +244,7 @@ abstract class BaseWatchFace : WatchFace() {
     }
 
     private fun setupBatteryReceiver() {
-        val setting = sp.getString("simplify_ui", "off")
+        val setting = sp.getString(R.string.key_simplify_ui, "off")
         if ((setting == "charging" || setting == "ambient_charging") && batteryReceiver == null) {
             val intentBatteryFilter = IntentFilter()
             intentBatteryFilter.addAction(BatteryManager.ACTION_CHARGING)
@@ -296,6 +295,7 @@ abstract class BaseWatchFace : WatchFace() {
         mDay = layoutView?.findViewById(R.id.day)
         mDayName = layoutView?.findViewById(R.id.dayname)
         mMonth = layoutView?.findViewById(R.id.month)
+        mTimePeriod = layoutView?.findViewById(R.id.timePeriod)
         mDate = layoutView?.findViewById(R.id.date_time)
         mLoop = layoutView?.findViewById(R.id.loop)
         mSgv = layoutView?.findViewById(R.id.sgv)
@@ -383,7 +383,7 @@ abstract class BaseWatchFace : WatchFace() {
         mDirectionPaint.color = getBgColour(singleBg.sgvLevel)
         val sSvg = singleBg.sgvString
         val svgWidth = mSvgPaint.measureText(sSvg)
-        val sDirection = " " + singleBg.sgvString + "\uFE0E"
+        val sDirection = " " + singleBg.slopeArrow + "\uFE0E"
         val directionWidth = mDirectionPaint.measureText(sDirection)
         val xSvg = xHalf - (svgWidth + directionWidth) / 2
         canvas.drawText(sSvg, xSvg, yThird + mYOffset, mSvgPaint)
@@ -420,7 +420,7 @@ abstract class BaseWatchFace : WatchFace() {
 
     @Suppress("DEPRECATION")
     private fun checkVibrateHourly(oldTime: WatchFaceTime, newTime: WatchFaceTime) {
-        val hourlyVibratePref = sp.getBoolean("vibrate_Hourly", false)
+        val hourlyVibratePref = sp.getBoolean(R.string.key_vibrate_hourly, false)
         if (hourlyVibratePref && layoutSet && newTime.hasHourChanged(oldTime)) {
             aapsLogger.info(LTag.WEAR, "hourlyVibratePref", "true --> $newTime")
             val vibrator = getSystemService(VIBRATOR_SERVICE) as Vibrator
@@ -435,8 +435,8 @@ abstract class BaseWatchFace : WatchFace() {
         mSgv?.text = singleBg.sgvString
         mSgv?.visibility = sp.getBoolean(R.string.key_show_bg, true).toVisibilityKeepSpace()
         strikeThroughSgvIfNeeded()
-        mDirection?.text = "${singleBg.sgvString}\uFE0E"
-        mDirection?.visibility = sp.getBoolean("show_direction", true).toVisibility()
+        mDirection?.text = "${singleBg.slopeArrow}\uFE0E"
+        mDirection?.visibility = sp.getBoolean(R.string.key_show_direction, true).toVisibility()
         mDelta?.text = singleBg.delta
         mDelta?.visibility = sp.getBoolean(R.string.key_show_delta, true).toVisibility()
         mAvgDelta?.text = singleBg.avgDelta
@@ -444,23 +444,23 @@ abstract class BaseWatchFace : WatchFace() {
         mCOB1?.visibility = sp.getBoolean(R.string.key_show_cob, true).toVisibility()
         mCOB2?.text = status.cob
         mCOB2?.visibility = sp.getBoolean(R.string.key_show_cob, true).toVisibility()
-        mIOB1?.visibility = sp.getBoolean("show_iob", true).toVisibility()
-        mIOB2?.visibility = sp.getBoolean("show_iob", true).toVisibility()
-        mIOB1?.text = if (sp.getBoolean("show_iob", true)) status.iobSum else getString(R.string.activity_IOB)
-        mIOB2?.text = if (sp.getBoolean("show_iob", true)) status.iobDetail else status.iobSum
+        mIOB1?.visibility = sp.getBoolean(R.string.key_show_iob, true).toVisibility()
+        mIOB2?.visibility = sp.getBoolean(R.string.key_show_iob, true).toVisibility()
+        mIOB1?.text = if (sp.getBoolean(R.string.key_show_iob, true)) status.iobSum else getString(R.string.activity_IOB)
+        mIOB2?.text = if (sp.getBoolean(R.string.key_show_iob, true)) status.iobDetail else status.iobSum
         mTimestamp?.visibility = sp.getBoolean(R.string.key_show_ago, true).toVisibility()
         mTimestamp?.text = readingAge(if (isAAPSv2 != null) true else sp.getBoolean(R.string.key_show_external_status, true))
-        mUploaderBattery?.visibility = sp.getBoolean("show_uploader_battery", true).toVisibility()
+        mUploaderBattery?.visibility = sp.getBoolean(R.string.key_show_uploader_battery, true).toVisibility()
         mUploaderBattery?.text =
             when {
                 isAAPSv2 != null                                       -> status.battery + "%"
                 sp.getBoolean(R.string.key_show_external_status, true) -> "U: ${status.battery}%"
                 else                                                   -> "Uploader: ${status.battery}%"
             }
-        mRigBattery?.visibility = sp.getBoolean("show_rig_battery", false).toVisibility()
+        mRigBattery?.visibility = sp.getBoolean(R.string.key_show_rig_battery, false).toVisibility()
         mRigBattery?.text = status.rigBattery
         mBasalRate?.text = status.currentBasal
-        mBasalRate?.visibility = sp.getBoolean("show_temp_basal", true).toVisibility()
+        mBasalRate?.visibility = sp.getBoolean(R.string.key_show_temp_basal, true).toVisibility()
         mBgi?.text = status.bgi
         mBgi?.visibility = status.showBgi.toVisibility()
         mStatus?.text = status.externalStatus
@@ -499,14 +499,16 @@ abstract class BaseWatchFace : WatchFace() {
         mDayName?.text = dateUtil.dayNameString()
         mDay?.text = dateUtil.dayString()
         mMonth?.text = dateUtil.monthString()
+        mTimePeriod?.visibility = android.text.format.DateFormat.is24HourFormat(this).not().toVisibility()
+        mTimePeriod?.text = dateUtil.amPm()
     }
 
     private fun setColor() {
-        dividerMatchesBg = sp.getBoolean("match_divider", false)
+        dividerMatchesBg = sp.getBoolean(R.string.key_match_divider, false)
         when {
-            lowResMode                  -> setColorLowRes()
-            sp.getBoolean("dark", true) -> setColorDark()
-            else                        -> setColorBright()
+            lowResMode                             -> setColorLowRes()
+            sp.getBoolean(R.string.key_dark, true) -> setColorDark()
+            else                                   -> setColorBright()
         }
     }
 
@@ -537,7 +539,7 @@ abstract class BaseWatchFace : WatchFace() {
 
     private val isSimpleUi: Boolean
         get() {
-            val simplify = sp.getString("simplify_ui", "off")
+            val simplify = sp.getString(R.string.key_simplify_ui, "off")
             return if (simplify == "off") false
             else if ((simplify == "ambient" || simplify == "ambient_charging") && currentWatchMode == WatchMode.AMBIENT) true
             else (simplify == "charging" || simplify == "ambient_charging") && isCharging
diff --git a/wear/src/main/java/info/nightscout/androidaps/watchfaces/CircleWatchface.kt b/wear/src/main/java/info/nightscout/androidaps/watchfaces/CircleWatchface.kt
index 20e9f511ce..0809275b7e 100644
--- a/wear/src/main/java/info/nightscout/androidaps/watchfaces/CircleWatchface.kt
+++ b/wear/src/main/java/info/nightscout/androidaps/watchfaces/CircleWatchface.kt
@@ -276,35 +276,15 @@ class CircleWatchface : WatchFace() {
 
     // defining color for dark and bright
     private val lowColor: Int
-        get() = if (sp.getBoolean("dark", true)) {
-            Color.argb(255, 255, 120, 120)
-        } else {
-            Color.argb(255, 255, 80, 80)
-        }
+        get() = if (sp.getBoolean(R.string.key_dark, true)) Color.argb(255, 255, 120, 120) else Color.argb(255, 255, 80, 80)
     private val inRangeColor: Int
-        get() = if (sp.getBoolean("dark", true)) {
-            Color.argb(255, 120, 255, 120)
-        } else {
-            Color.argb(255, 0, 240, 0)
-        }
+        get() = if (sp.getBoolean(R.string.key_dark, true)) Color.argb(255, 120, 255, 120) else Color.argb(255, 0, 240, 0)
     private val highColor: Int
-        get() = if (sp.getBoolean("dark", true)) {
-            Color.argb(255, 255, 255, 120)
-        } else {
-            Color.argb(255, 255, 200, 0)
-        }
+        get() = if (sp.getBoolean(R.string.key_dark, true)) Color.argb(255, 255, 255, 120) else Color.argb(255, 255, 200, 0)
     private val backgroundColor: Int
-        get() = if (sp.getBoolean("dark", true)) {
-            Color.BLACK
-        } else {
-            Color.WHITE
-        }
+        get() = if (sp.getBoolean(R.string.key_dark, true)) Color.BLACK else Color.WHITE
     val textColor: Int
-        get() = if (sp.getBoolean("dark", true)) {
-            Color.WHITE
-        } else {
-            Color.BLACK
-        }
+        get() = if (sp.getBoolean(R.string.key_dark, true)) Color.WHITE else Color.BLACK
 
     private fun drawOtherStuff(canvas: Canvas) {
         aapsLogger.debug(LTag.WEAR, "start onDrawOtherStuff. bgDataList.size(): " + bgDataList.size)
@@ -388,7 +368,7 @@ class CircleWatchface : WatchFace() {
     private fun addReadingSoft(canvas: Canvas, entry: SingleBg) {
         aapsLogger.debug(LTag.WEAR, "addReadingSoft")
         var color = Color.LTGRAY
-        if (sp.getBoolean("dark", true)) {
+        if (sp.getBoolean(R.string.key_dark, true)) {
             color = Color.DKGRAY
         }
         val offsetMultiplier = (displaySize.x / 2f - PADDING) / 12f
@@ -403,7 +383,7 @@ class CircleWatchface : WatchFace() {
         aapsLogger.debug(LTag.WEAR, "addReading")
         var color = Color.LTGRAY
         var indicatorColor = Color.DKGRAY
-        if (sp.getBoolean("dark", true)) {
+        if (sp.getBoolean(R.string.key_dark, true)) {
             color = Color.DKGRAY
             indicatorColor = Color.LTGRAY
         }
diff --git a/wear/src/main/java/info/nightscout/androidaps/watchfaces/DigitalStyleWatchface.kt b/wear/src/main/java/info/nightscout/androidaps/watchfaces/DigitalStyleWatchface.kt
index e8d7ba0cf8..de808a21be 100644
--- a/wear/src/main/java/info/nightscout/androidaps/watchfaces/DigitalStyleWatchface.kt
+++ b/wear/src/main/java/info/nightscout/androidaps/watchfaces/DigitalStyleWatchface.kt
@@ -67,13 +67,10 @@ class DigitalStyleWatchface : BaseWatchFace() {
         val mShapesElements = layoutView?.findViewById<LinearLayout>(R.id.shapes_elements)
         if (mShapesElements != null) {
             val displayFormatType = if (mShapesElements.contentDescription.toString().startsWith("round")) "round" else "rect"
-            val displayStyle = sp.getString("digitalstyle_frameStyle", "full")
-            val displayFrameColor = sp.getString("digitalstyle_frameColor", "red")
-            val displayFrameColorSaturation = sp.getString(
-                "digitalstyle_frameColorSaturation",
-                "500"
-            )
-            val displayFrameColorOpacity = sp.getString("digitalstyle_frameColorOpacity", "1")
+            val displayStyle = sp.getString(R.string.key_digital_style_frame_style, "full")
+            val displayFrameColor = sp.getString(R.string.key_digital_style_frame_color, "red")
+            val displayFrameColorSaturation = sp.getString(R.string.key_digital_style_frame_color_saturation, "500")
+            val displayFrameColorOpacity = sp.getString(R.string.key_digital_style_frame_color_opacity, "1")
 
             // Load image with shapes
             val styleDrawableName = "digitalstyle_bg_" + displayStyle + "_" + displayFormatType
diff --git a/wear/src/main/java/info/nightscout/androidaps/watchfaces/SteampunkWatchface.kt b/wear/src/main/java/info/nightscout/androidaps/watchfaces/SteampunkWatchface.kt
index 3bc0c08ae1..fde17ae1e7 100644
--- a/wear/src/main/java/info/nightscout/androidaps/watchfaces/SteampunkWatchface.kt
+++ b/wear/src/main/java/info/nightscout/androidaps/watchfaces/SteampunkWatchface.kt
@@ -185,7 +185,7 @@ class SteampunkWatchface : BaseWatchFace() {
         }
 
         //if both batteries are shown, make them smaller.
-        if (sp.getBoolean("show_uploader_battery", true) && sp.getBoolean("show_rig_battery", false)) {
+        if (sp.getBoolean(R.string.key_show_uploader_battery, true) && sp.getBoolean(R.string.key_show_rig_battery, false)) {
             mUploaderBattery?.textSize = fontSmall
             mRigBattery?.textSize = fontSmall
         } else {
diff --git a/wear/src/main/res/layout-notround/activity_digitalstyle.xml b/wear/src/main/res/layout-notround/activity_digitalstyle.xml
index 294d708df4..87352b783a 100644
--- a/wear/src/main/res/layout-notround/activity_digitalstyle.xml
+++ b/wear/src/main/res/layout-notround/activity_digitalstyle.xml
@@ -6,7 +6,6 @@
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     android:background="@color/black"
-    tools:context=".watchfaces.DigitalStyleWatchface"
     tools:deviceIds="wear_square">
 
     <!-- background-image with shapes elements-->
@@ -279,7 +278,7 @@
             <LinearLayout
                 android:layout_width="match_parent"
                 android:layout_height="0dp"
-                android:layout_marginStart="9dp"
+                android:layout_marginLeft="9dp"
                 android:layout_weight="1"
                 android:orientation="vertical">
 
@@ -369,7 +368,7 @@
                                 android:id="@+id/month"
                                 android:layout_width="wrap_content"
                                 android:layout_height="wrap_content"
-                                android:layout_marginStart="5dp"
+                                android:layout_marginLeft="5dp"
                                 android:fontFamily="@font/roboto_condensed_regular"
                                 android:text="MMM"
                                 android:textAllCaps="true"
@@ -418,8 +417,7 @@
                             android:layout_width="wrap_content"
                             android:layout_height="wrap_content"
                             android:layout_gravity="left"
-                            android:layout_marginStart="6sp"
-                            android:layout_marginTop="-2sp"
+                            android:layout_marginLeft="6sp"
                             android:layout_marginBottom="-8sp"
                             android:fontFamily="@font/roboto_condensed_bold"
                             android:text="MI"
@@ -427,18 +425,28 @@
                             android:textSize="26sp"
                             android:textStyle="bold" />
 
+                        <!-- 12h period AM / PM-->
+                        <TextView
+                            android:id="@+id/timePeriod"
+                            android:layout_width="wrap_content"
+                            android:layout_height="wrap_content"
+                            android:layout_gravity="bottom"
+                            android:layout_marginLeft="8sp"
+                            android:fontFamily="@font/roboto_condensed_bold"
+                            android:text="AM"
+                            android:textColor="@color/light_grey"
+                            android:textSize="10sp"
+                            android:textStyle="bold" />
                     </LinearLayout>
-
                 </LinearLayout>
-
             </LinearLayout>
 
             <!-- right side 1/2 height - bottom halft -->
             <LinearLayout
                 android:layout_width="match_parent"
                 android:layout_height="0dp"
-                android:layout_marginStart="7dp"
-                android:layout_marginEnd="7dp"
+                android:layout_marginLeft="7dp"
+                android:layout_marginRight="7dp"
                 android:layout_weight="1"
                 android:baselineAligned="false"
                 android:gravity="left|top"
diff --git a/wear/src/main/res/layout-round/activity_digitalstyle.xml b/wear/src/main/res/layout-round/activity_digitalstyle.xml
index 029cf9210b..bc21b8d326 100644
--- a/wear/src/main/res/layout-round/activity_digitalstyle.xml
+++ b/wear/src/main/res/layout-round/activity_digitalstyle.xml
@@ -6,7 +6,6 @@
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     android:background="@color/black"
-    tools:context=".watchfaces.DigitalStyleWatchface"
     tools:deviceIds="wear_round">
 
     <!-- background-image with shapes elements-->
@@ -280,7 +279,7 @@
             <LinearLayout
                 android:layout_width="match_parent"
                 android:layout_height="0dp"
-                android:layout_marginStart="9dp"
+                android:layout_marginLeft="9dp"
                 android:layout_weight="1"
                 android:orientation="vertical">
 
@@ -370,7 +369,7 @@
                                 android:id="@+id/month"
                                 android:layout_width="wrap_content"
                                 android:layout_height="wrap_content"
-                                android:layout_marginStart="5dp"
+                                android:layout_marginLeft="5dp"
                                 android:fontFamily="@font/roboto_condensed_regular"
                                 android:text="MMM"
                                 android:textAllCaps="true"
@@ -395,7 +394,7 @@
                         <!-- hour -->
                         <TextView
                             android:id="@+id/hour"
-                            android:layout_width="wrap_content"
+                            android:layout_width="match_parent"
                             android:layout_height="wrap_content"
                             android:layout_gravity="left"
                             android:fontFamily="@font/roboto_condensed_bold"
@@ -418,8 +417,7 @@
                             android:layout_width="wrap_content"
                             android:layout_height="wrap_content"
                             android:layout_gravity="left"
-                            android:layout_marginStart="6sp"
-                            android:layout_marginTop="-2sp"
+                            android:layout_marginLeft="6sp"
                             android:layout_marginBottom="-8sp"
                             android:fontFamily="@font/roboto_condensed_bold"
                             android:text="MI"
@@ -427,18 +425,28 @@
                             android:textSize="26sp"
                             android:textStyle="bold" />
 
+                        <!-- 12h period AM / PM -->
+                        <TextView
+                            android:id="@+id/timePeriod"
+                            android:layout_width="wrap_content"
+                            android:layout_height="wrap_content"
+                            android:layout_marginLeft="8sp"
+                            android:fontFamily="@font/roboto_condensed_bold"
+                            android:gravity="top"
+                            android:text="AM"
+                            android:textColor="@color/light_grey"
+                            android:textSize="10sp"
+                            android:textStyle="bold" />
                     </LinearLayout>
-
                 </LinearLayout>
-
             </LinearLayout>
 
             <!-- right side 1/2 height - bottom halft -->
             <LinearLayout
                 android:layout_width="match_parent"
                 android:layout_height="0dp"
-                android:layout_marginStart="7dp"
-                android:layout_marginEnd="7dp"
+                android:layout_marginLeft="7dp"
+                android:layout_marginRight="7dp"
                 android:layout_weight="1"
                 android:baselineAligned="false"
                 android:gravity="left|top"
diff --git a/wear/src/main/res/values/strings.xml b/wear/src/main/res/values/strings.xml
index bc56b0bb46..3cf7217ce7 100644
--- a/wear/src/main/res/values/strings.xml
+++ b/wear/src/main/res/values/strings.xml
@@ -207,5 +207,18 @@
     <string name="key_show_delta" translatable="false">showDelta</string>
     <string name="key_show_avg_delta" translatable="false">showAvgDelta</string>
     <string name="key_show_ring_history" translatable="false">showRingHistory</string>
+    <string name="key_digital_style_frame_style" translatable="false">digital_style_frame_style</string>
+    <string name="key_digital_style_frame_color" translatable="false">digital_style_frame_color</string>
+    <string name="key_digital_style_frame_color_saturation" translatable="false">digital_style_frame_color_saturation</string>
+    <string name="key_digital_style_frame_color_opacity" translatable="false">digital_style_frame_color_opacity</string>
+    <string name="key_show_direction" translatable="false">show_direction</string>
+    <string name="key_show_iob" translatable="false">show_iob</string>
+    <string name="key_show_uploader_battery" translatable="false">show_uploader_battery</string>
+    <string name="key_show_rig_battery" translatable="false">show_rig_battery</string>
+    <string name="key_show_temp_basal" translatable="false">show_temp_basal</string>
+    <string name="key_vibrate_hourly" translatable="false">vibrate_hourly</string>
+    <string name="key_match_divider" translatable="false">match_divider</string>
+    <string name="key_simplify_ui" translatable="false">simplify_ui</string>
+    <string name="key_dark" translatable="false">dark</string>
 
 </resources>
diff --git a/wear/src/main/res/xml/preferences.xml b/wear/src/main/res/xml/preferences.xml
index a719b98f78..e383787582 100644
--- a/wear/src/main/res/xml/preferences.xml
+++ b/wear/src/main/res/xml/preferences.xml
@@ -4,7 +4,7 @@
 
     <CheckBoxPreference
         android:defaultValue="true"
-        android:key="show_iob"
+        android:key="@string/key_show_iob"
         android:summary="Show insulin on board."
         android:title="@string/pref_show_iob"
         app:wear_iconOff="@drawable/settings_off"
@@ -43,7 +43,7 @@
         app:wear_iconOn="@drawable/settings_on" />
     <CheckBoxPreference
         android:defaultValue="true"
-        android:key="show_direction"
+        android:key="@string/key_show_direction"
         android:summary="Show direction arrow"
         android:title="@string/pref_show_direction_arrow"
         app:wear_iconOff="@drawable/settings_off"
@@ -59,21 +59,21 @@
 
     <CheckBoxPreference
         android:defaultValue="true"
-        android:key="show_uploader_battery"
+        android:key="@string/key_show_uploader_battery"
         android:title="@string/pref_show_phone_battery"
         app:wear_iconOff="@drawable/settings_off"
         app:wear_iconOn="@drawable/settings_on" />
 
     <CheckBoxPreference
         android:defaultValue="false"
-        android:key="show_rig_battery"
+        android:key="@string/key_show_rig_battery"
         android:title="@string/pref_show_rig_battery"
         app:wear_iconOff="@drawable/settings_off"
         app:wear_iconOn="@drawable/settings_on" />
 
     <CheckBoxPreference
         android:defaultValue="true"
-        android:key="show_temp_basal"
+        android:key="@string/key_show_temp_basal"
         android:title="@string/pref_show_basal_rate"
         app:wear_iconOff="@drawable/settings_off"
         app:wear_iconOn="@drawable/settings_on" />
diff --git a/wear/src/main/res/xml/watch_face_configuration_bigchart.xml b/wear/src/main/res/xml/watch_face_configuration_bigchart.xml
index 93fca4db9e..1211bed170 100644
--- a/wear/src/main/res/xml/watch_face_configuration_bigchart.xml
+++ b/wear/src/main/res/xml/watch_face_configuration_bigchart.xml
@@ -4,15 +4,14 @@
 
     <CheckBoxPreference
         android:defaultValue="true"
-        android:key="dark"
-        android:summary="Dark theme"
+        android:key="@string/key_dark"
         android:title="@string/pref_dark"
         app:wear_iconOff="@drawable/settings_off"
         app:wear_iconOn="@drawable/settings_on" />
 
     <CheckBoxPreference
         android:defaultValue="false"
-        android:key="vibrate_Hourly"
+        android:key="@string/key_vibrate_hourly"
         android:title="@string/pref_vibrate_hourly"
         app:wear_iconOff="@drawable/settings_off"
         app:wear_iconOn="@drawable/settings_on" />
diff --git a/wear/src/main/res/xml/watch_face_configuration_circle.xml b/wear/src/main/res/xml/watch_face_configuration_circle.xml
index 556068b915..915c34c0ea 100644
--- a/wear/src/main/res/xml/watch_face_configuration_circle.xml
+++ b/wear/src/main/res/xml/watch_face_configuration_circle.xml
@@ -4,8 +4,7 @@
 
     <CheckBoxPreference
         android:defaultValue="true"
-        android:key="dark"
-        android:summary="Dark theme"
+        android:key="@string/key_dark"
         android:title="@string/pref_dark"
         app:wear_iconOff="@drawable/settings_off"
         app:wear_iconOn="@drawable/settings_on" />
@@ -44,7 +43,7 @@
 
     <CheckBoxPreference
         android:defaultValue="false"
-        android:key="vibrate_Hourly"
+        android:key="@string/key_vibrate_hourly"
         android:title="@string/pref_vibrate_hourly"
         app:wear_iconOff="@drawable/settings_off"
         app:wear_iconOn="@drawable/settings_on" />
diff --git a/wear/src/main/res/xml/watch_face_configuration_cockpit.xml b/wear/src/main/res/xml/watch_face_configuration_cockpit.xml
index bd87348acb..c6a75d256e 100644
--- a/wear/src/main/res/xml/watch_face_configuration_cockpit.xml
+++ b/wear/src/main/res/xml/watch_face_configuration_cockpit.xml
@@ -4,7 +4,7 @@
 
     <CheckBoxPreference
         android:defaultValue="false"
-        android:key="vibrate_Hourly"
+        android:key="@string/key_vibrate_hourly"
         android:title="@string/pref_vibrate_hourly"
         app:wear_iconOff="@drawable/settings_off"
         app:wear_iconOn="@drawable/settings_on" />
@@ -13,7 +13,7 @@
         android:defaultValue="off"
         android:entries="@array/watchface_simplify_ui_name"
         android:entryValues="@array/watchface_simplify_ui_values"
-        android:key="simplify_ui"
+        android:key="@string/key_simplify_ui"
         android:summary="@string/pref_simplify_ui_sum"
         android:title="@string/pref_simplify_ui" />
 
diff --git a/wear/src/main/res/xml/watch_face_configuration_digitalstyle.xml b/wear/src/main/res/xml/watch_face_configuration_digitalstyle.xml
index 050bcc2c95..0c9c48ea2d 100644
--- a/wear/src/main/res/xml/watch_face_configuration_digitalstyle.xml
+++ b/wear/src/main/res/xml/watch_face_configuration_digitalstyle.xml
@@ -6,27 +6,27 @@
         android:defaultValue="full"
         android:entries="@array/digitalstyle_styles_name"
         android:entryValues="@array/digitalstyle_styles_values"
-        android:key="digitalstyle_frameStyle"
+        android:key="@string/key_digital_style_frame_style"
         android:title="@string/digitalstyle_pref_your_style" />
 
     <ListPreference
         android:defaultValue="red"
         android:entries="@array/digitalstyle_color_name"
         android:entryValues="@array/digitalstyle_color_values"
-        android:key="digitalstyle_frameColor"
+        android:key="@string/key_digital_style_frame_color"
         android:title="@string/digitalstyle_pref_your_color" />
     <ListPreference
         android:defaultValue="700"
         android:entries="@array/digitalstyle_color_saturation"
         android:entryValues="@array/digitalstyle_color_saturation"
-        android:key="digitalstyle_frameColorSaturation"
+        android:key="@string/key_digital_style_frame_color_saturation"
         android:title="@string/digitalstyle_pref_your_color_saturation" />
 
     <ListPreference
         android:defaultValue="1"
         android:entries="@array/digitalstyle_color_opacity_name"
         android:entryValues="@array/digitalstyle_color_opacity_value"
-        android:key="digitalstyle_frameColorOpacity"
+        android:key="@string/key_digital_style_frame_color_opacity"
         android:title="@string/digitalstyle_pref_your_color_opacity" />
 
     <CheckBoxPreference
@@ -45,7 +45,7 @@
 
     <CheckBoxPreference
         android:defaultValue="false"
-        android:key="vibrate_Hourly"
+        android:key="@string/key_vibrate_hourly"
         android:title="@string/pref_vibrate_hourly"
         app:wear_iconOff="@drawable/settings_off"
         app:wear_iconOn="@drawable/settings_on" />
@@ -54,7 +54,7 @@
         android:defaultValue="off"
         android:entries="@array/watchface_simplify_ui_name"
         android:entryValues="@array/watchface_simplify_ui_values"
-        android:key="simplify_ui"
+        android:key="@string/key_simplify_ui"
         android:summary="@string/pref_simplify_ui_sum"
         android:title="@string/pref_simplify_ui" />
 
diff --git a/wear/src/main/res/xml/watch_face_configuration_home.xml b/wear/src/main/res/xml/watch_face_configuration_home.xml
index a471c8a816..a5e1feef89 100644
--- a/wear/src/main/res/xml/watch_face_configuration_home.xml
+++ b/wear/src/main/res/xml/watch_face_configuration_home.xml
@@ -4,15 +4,14 @@
 
     <CheckBoxPreference
         android:defaultValue="true"
-        android:key="dark"
-        android:summary="Dark theme"
+        android:key="@string/key_dark"
         android:title="@string/pref_dark"
         app:wear_iconOff="@drawable/settings_off"
         app:wear_iconOn="@drawable/settings_on" />
 
     <CheckBoxPreference
         android:defaultValue="false"
-        android:key="match_divider"
+        android:key="@string/key_match_divider"
         android:summary="Status bar divider background matches watchface background"
         android:title="@string/pref_matching_divider"
         app:wear_iconOff="@drawable/settings_off"
@@ -20,7 +19,7 @@
 
     <CheckBoxPreference
         android:defaultValue="false"
-        android:key="vibrate_Hourly"
+        android:key="@string/key_vibrate_hourly"
         android:title="@string/pref_vibrate_hourly"
         app:wear_iconOff="@drawable/settings_off"
         app:wear_iconOn="@drawable/settings_on" />
@@ -29,7 +28,7 @@
         android:defaultValue="off"
         android:entries="@array/watchface_simplify_ui_name"
         android:entryValues="@array/watchface_simplify_ui_values"
-        android:key="simplify_ui"
+        android:key="@string/key_simplify_ui"
         android:summary="@string/pref_simplify_ui_sum"
         android:title="@string/pref_simplify_ui" />
 
diff --git a/wear/src/main/res/xml/watch_face_configuration_home2.xml b/wear/src/main/res/xml/watch_face_configuration_home2.xml
index 97c7294f8e..3d86ad7cc6 100644
--- a/wear/src/main/res/xml/watch_face_configuration_home2.xml
+++ b/wear/src/main/res/xml/watch_face_configuration_home2.xml
@@ -4,15 +4,14 @@
 
     <CheckBoxPreference
         android:defaultValue="true"
-        android:key="dark"
-        android:summary="Dark theme"
+        android:key="@string/key_dark"
         android:title="@string/pref_dark"
         app:wear_iconOff="@drawable/settings_off"
         app:wear_iconOn="@drawable/settings_on" />
 
     <CheckBoxPreference
         android:defaultValue="false"
-        android:key="match_divider"
+        android:key="@string/key_match_divider"
         android:summary="Status bar divider background matches watchface background"
         android:title="@string/pref_matching_divider"
         app:wear_iconOff="@drawable/settings_off"
@@ -27,7 +26,7 @@
 
     <CheckBoxPreference
         android:defaultValue="false"
-        android:key="vibrate_Hourly"
+        android:key="@string/key_vibrate_hourly"
         android:title="@string/pref_vibrate_hourly"
         app:wear_iconOff="@drawable/settings_off"
         app:wear_iconOn="@drawable/settings_on" />
@@ -36,7 +35,7 @@
         android:defaultValue="off"
         android:entries="@array/watchface_simplify_ui_name"
         android:entryValues="@array/watchface_simplify_ui_values"
-        android:key="simplify_ui"
+        android:key="@string/key_simplify_ui"
         android:summary="@string/pref_simplify_ui_sum"
         android:title="@string/pref_simplify_ui" />
 
diff --git a/wear/src/main/res/xml/watch_face_configuration_largehome.xml b/wear/src/main/res/xml/watch_face_configuration_largehome.xml
index a471c8a816..a5e1feef89 100644
--- a/wear/src/main/res/xml/watch_face_configuration_largehome.xml
+++ b/wear/src/main/res/xml/watch_face_configuration_largehome.xml
@@ -4,15 +4,14 @@
 
     <CheckBoxPreference
         android:defaultValue="true"
-        android:key="dark"
-        android:summary="Dark theme"
+        android:key="@string/key_dark"
         android:title="@string/pref_dark"
         app:wear_iconOff="@drawable/settings_off"
         app:wear_iconOn="@drawable/settings_on" />
 
     <CheckBoxPreference
         android:defaultValue="false"
-        android:key="match_divider"
+        android:key="@string/key_match_divider"
         android:summary="Status bar divider background matches watchface background"
         android:title="@string/pref_matching_divider"
         app:wear_iconOff="@drawable/settings_off"
@@ -20,7 +19,7 @@
 
     <CheckBoxPreference
         android:defaultValue="false"
-        android:key="vibrate_Hourly"
+        android:key="@string/key_vibrate_hourly"
         android:title="@string/pref_vibrate_hourly"
         app:wear_iconOff="@drawable/settings_off"
         app:wear_iconOn="@drawable/settings_on" />
@@ -29,7 +28,7 @@
         android:defaultValue="off"
         android:entries="@array/watchface_simplify_ui_name"
         android:entryValues="@array/watchface_simplify_ui_values"
-        android:key="simplify_ui"
+        android:key="@string/key_simplify_ui"
         android:summary="@string/pref_simplify_ui_sum"
         android:title="@string/pref_simplify_ui" />
 
diff --git a/wear/src/main/res/xml/watch_face_configuration_nochart.xml b/wear/src/main/res/xml/watch_face_configuration_nochart.xml
index 93fca4db9e..1211bed170 100644
--- a/wear/src/main/res/xml/watch_face_configuration_nochart.xml
+++ b/wear/src/main/res/xml/watch_face_configuration_nochart.xml
@@ -4,15 +4,14 @@
 
     <CheckBoxPreference
         android:defaultValue="true"
-        android:key="dark"
-        android:summary="Dark theme"
+        android:key="@string/key_dark"
         android:title="@string/pref_dark"
         app:wear_iconOff="@drawable/settings_off"
         app:wear_iconOn="@drawable/settings_on" />
 
     <CheckBoxPreference
         android:defaultValue="false"
-        android:key="vibrate_Hourly"
+        android:key="@string/key_vibrate_hourly"
         android:title="@string/pref_vibrate_hourly"
         app:wear_iconOff="@drawable/settings_off"
         app:wear_iconOn="@drawable/settings_on" />
diff --git a/wear/src/main/res/xml/watch_face_configuration_steampunk.xml b/wear/src/main/res/xml/watch_face_configuration_steampunk.xml
index e3933b6732..08758b3f81 100644
--- a/wear/src/main/res/xml/watch_face_configuration_steampunk.xml
+++ b/wear/src/main/res/xml/watch_face_configuration_steampunk.xml
@@ -12,7 +12,7 @@
 
     <CheckBoxPreference
         android:defaultValue="false"
-        android:key="vibrate_Hourly"
+        android:key="@string/key_vibrate_hourly"
         android:title="@string/pref_vibrate_hourly"
         app:wear_iconOff="@drawable/settings_off"
         app:wear_iconOn="@drawable/settings_on" />
@@ -21,7 +21,7 @@
         android:defaultValue="off"
         android:entries="@array/watchface_simplify_ui_name"
         android:entryValues="@array/watchface_simplify_ui_values"
-        android:key="simplify_ui"
+        android:key="@string/key_simplify_ui"
         android:summary="@string/pref_simplify_ui_sum"
         android:title="@string/pref_simplify_ui" />