diff --git a/SleepGarmin-android/app/src/main/java/com/urbandroid/sleep/garmin/Constants.java b/SleepGarmin-android/app/src/main/java/com/urbandroid/sleep/garmin/Constants.java
index a059761..9455abf 100644
--- a/SleepGarmin-android/app/src/main/java/com/urbandroid/sleep/garmin/Constants.java
+++ b/SleepGarmin-android/app/src/main/java/com/urbandroid/sleep/garmin/Constants.java
@@ -26,6 +26,8 @@ public class Constants {
     public final static String STARTED_ON_WATCH_NAME = "com.urbandroid.sleep.watch.STARTED_ON_WATCH";
     public final static String STOP_SLEEP_TRACK_ACTION = "com.urbandroid.sleep.alarmclock.STOP_SLEEP_TRACK";
 //    private final static String WATCH_TYPE_EXTRA = "com.urbandroid.sleep.watch.WATCH_TIME_EXTRA";
+    public final static String DATA_WITH_EXTRA = "com.urbandroid.sleep.watch.ACTION_EXTRA_DATA_UPDATE";
+    public final static String SPO2_DATA_EXTRA = "com.urbandroid.sleep.EXTRA_DATA_SPO2"; // supposed to be float
 
     //    From sleep to plugin
     final static String START_WATCH_APP = "com.urbandroid.sleep.watch.START_TRACKING";
diff --git a/SleepGarmin-android/app/src/main/java/com/urbandroid/sleep/garmin/MessageHandler.java b/SleepGarmin-android/app/src/main/java/com/urbandroid/sleep/garmin/MessageHandler.java
index 242499a..4cf0bc5 100644
--- a/SleepGarmin-android/app/src/main/java/com/urbandroid/sleep/garmin/MessageHandler.java
+++ b/SleepGarmin-android/app/src/main/java/com/urbandroid/sleep/garmin/MessageHandler.java
@@ -12,6 +12,7 @@
 import java.util.List;
 
 import static com.urbandroid.sleep.garmin.Constants.CHECK_CONNECTED;
+import static com.urbandroid.sleep.garmin.Constants.DATA_WITH_EXTRA;
 import static com.urbandroid.sleep.garmin.Constants.DISMISS_ACTION_NAME;
 import static com.urbandroid.sleep.garmin.Constants.DO_HR_MONITORING;
 import static com.urbandroid.sleep.garmin.Constants.HINT;
@@ -23,6 +24,7 @@
 import static com.urbandroid.sleep.garmin.Constants.SET_BATCH_SIZE;
 import static com.urbandroid.sleep.garmin.Constants.SET_PAUSE;
 import static com.urbandroid.sleep.garmin.Constants.SNOOZE_ACTION_NAME;
+import static com.urbandroid.sleep.garmin.Constants.SPO2_DATA_EXTRA;
 import static com.urbandroid.sleep.garmin.Constants.STARTED_ON_WATCH_NAME;
 import static com.urbandroid.sleep.garmin.Constants.START_ALARM;
 import static com.urbandroid.sleep.garmin.Constants.START_WATCH_APP;
@@ -135,6 +137,12 @@ public void handleMessageFromWatch(List<Object> message, ConnectIQ.IQMessageStat
                 queueToWatch.emptyQueue();
                 queueToWatch.enqueue(TO_WATCH_STOP);
                 break;
+            case "SPO2":
+                float[] spo2Data = new float[]{Float.parseFloat(msgArray[1])};
+                Logger.logInfo(TAG + ": received SpO2 data from watch " + spo2Data[0]);
+                Intent spo2Intent = new Intent(DATA_WITH_EXTRA);
+                spo2Intent.putExtra(SPO2_DATA_EXTRA, spo2Data);
+                sendExplicitBroadcastToSleep(spo2Intent, context);
         }
 
         if (maxRawFloatValues != null) {
diff --git a/SleepGarmin-watch2/source/BusinessManager.mc b/SleepGarmin-watch2/source/BusinessManager.mc
index 63f86be..025c861 100644
--- a/SleepGarmin-watch2/source/BusinessManager.mc
+++ b/SleepGarmin-watch2/source/BusinessManager.mc
@@ -42,6 +42,9 @@ class BusinessManager {
  		DebugManager.log("sendHrData " + hr);
  		self.ctx.commManager.enqueue([CommManager.MSG_HR, hr]); 		
  	}
+ 	function sendOxyData(oxygenSaturation) {
+ 		self.ctx.commManager.enqueue([CommManager.MSG_OXY, oxygenSaturation]);
+ 	}
  	
  	function sendPause() {
  		self.ctx.commManager.enqueue(CommManager.MSG_PAUSE_TRACKING);
diff --git a/SleepGarmin-watch2/source/CommManager.mc b/SleepGarmin-watch2/source/CommManager.mc
index e3e1f45..548103f 100644
--- a/SleepGarmin-watch2/source/CommManager.mc
+++ b/SleepGarmin-watch2/source/CommManager.mc
@@ -27,6 +27,7 @@ class CommManager {
 	static const MSG_RESUME_TRACKING = "RESUME";
 	static const MSG_DATA = "DATA_NEW";
 	static const MSG_HR = "HR";
+	static const MSG_OXY = "SPO2";
 	
     const MAX_DELIVERY_ERROR = 3;
     const MAX_DELIVERY_PAUSE = 3;
diff --git a/SleepGarmin-watch2/source/SensorManager.mc b/SleepGarmin-watch2/source/SensorManager.mc
index 5f6169a..48d48f4 100644
--- a/SleepGarmin-watch2/source/SensorManager.mc
+++ b/SleepGarmin-watch2/source/SensorManager.mc
@@ -2,7 +2,8 @@ using Toybox.Sensor;
 
 class SensorManager {
 
-	const SENSOR_PERIOD_SEC = 4; 
+	const SENSOR_PERIOD_SEC = 4;
+	const OXI_READING_PERIOD_SEC = 60;
 
 	var ctx;
 	
@@ -12,6 +13,8 @@ class SensorManager {
 	var accBatch = [];
 	
 	var hrBuf = [];
+	
+	var lastOximeterReadingSec = 0;
 
     function initialize(ctx) {
         DebugManager.log("SensorManager initialized");
@@ -45,8 +48,19 @@ class SensorManager {
 	        
 	        if (sensorData has :heartRateData && sensorData.heartRateData != null) {
 	 	    	onHRData(sensorData.heartRateData.heartBeatIntervals);
-			}        
+			}	
+			
+			if (lastOximeterReadingSec > OXI_READING_PERIOD_SEC) {
+				lastOximeterReadingSec = 0;
+				var sensorInfo = Sensor.getInfo();
+			    if (sensorInfo has :oxygenSaturation && sensorInfo.oxygenSaturation != null) {
+		    	    onOxyData(oxygenSaturation);		    	    
+			    }
+			}
+			lastOximeterReadingSec = lastOximeterReadingSec + SENSOR_PERIOD_SEC;
         }
+        
+        
 		
 		self.ctx.businessManager.onDataHook();
     }
@@ -101,5 +115,11 @@ class SensorManager {
     		hrBuf = [];
     	}
     }
+    
+    function onOxyData(oxygenSaturation) {
+    	DebugManager.log("onOxyData");
+    	
+    	self.ctx.businessManager.sendOxyData(oxygenSaturation);
+    }
 
 }
\ No newline at end of file