diff --git a/api/current.txt b/api/current.txt
index 66f2a47..610c81e 100644
--- a/api/current.txt
+++ b/api/current.txt
@@ -32,6 +32,7 @@
     field public static final java.lang.String BLUETOOTH = "android.permission.BLUETOOTH";
     field public static final java.lang.String BLUETOOTH_ADMIN = "android.permission.BLUETOOTH_ADMIN";
     field public static final java.lang.String BLUETOOTH_PRIVILEGED = "android.permission.BLUETOOTH_PRIVILEGED";
+    field public static final java.lang.String BODY_SENSORS = "android.permission.BODY_SENSORS";
     field public static final java.lang.String BRICK = "android.permission.BRICK";
     field public static final java.lang.String BROADCAST_PACKAGE_REMOVED = "android.permission.BROADCAST_PACKAGE_REMOVED";
     field public static final java.lang.String BROADCAST_SMS = "android.permission.BROADCAST_SMS";
@@ -10755,10 +10756,33 @@
     method public int getMinDelay();
     method public java.lang.String getName();
     method public float getPower();
+    method public java.lang.String getRequiredPermission();
     method public float getResolution();
+    method public java.lang.String getStringType();
     method public int getType();
     method public java.lang.String getVendor();
     method public int getVersion();
+    field public static final java.lang.String STRING_TYPE_ACCELEROMETER = "android.sensor.accelerometer";
+    field public static final java.lang.String STRING_TYPE_AMBIENT_TEMPERATURE = "android.sensor.ambient_temperature";
+    field public static final java.lang.String STRING_TYPE_GAME_ROTATION_VECTOR = "android.sensor.game_rotation_vector";
+    field public static final java.lang.String STRING_TYPE_GEOMAGNETIC_ROTATION_VECTOR = "android.sensor.geomagnetic_rotation_vector";
+    field public static final java.lang.String STRING_TYPE_GRAVITY = "android.sensor.gravity";
+    field public static final java.lang.String STRING_TYPE_GYROSCOPE = "android.sensor.gyroscope";
+    field public static final java.lang.String STRING_TYPE_GYROSCOPE_UNCALIBRATED = "android.sensor.gyroscope_uncalibrated";
+    field public static final java.lang.String STRING_TYPE_HEART_RATE = "android.sensor.heart_rate";
+    field public static final java.lang.String STRING_TYPE_LIGHT = "android.sensor.light";
+    field public static final java.lang.String STRING_TYPE_LINEAR_ACCELERATION = "android.sensor.linear_acceleration";
+    field public static final java.lang.String STRING_TYPE_MAGNETIC_FIELD = "android.sensor.magnetic_field";
+    field public static final java.lang.String STRING_TYPE_MAGNETIC_FIELD_UNCALIBRATED = "android.sensor.magnetic_field_uncalibrated";
+    field public static final deprecated java.lang.String STRING_TYPE_ORIENTATION = "android.sensor.orientation";
+    field public static final java.lang.String STRING_TYPE_PRESSURE = "android.sensor.pressure";
+    field public static final java.lang.String STRING_TYPE_PROXIMITY = "android.sensor.proximity";
+    field public static final java.lang.String STRING_TYPE_RELATIVE_HUMIDITY = "android.sensor.relative_humidity";
+    field public static final java.lang.String STRING_TYPE_ROTATION_VECTOR = "android.sensor.rotation_vector";
+    field public static final java.lang.String STRING_TYPE_SIGNIFICANT_MOTION = "android.sensor.significant_motion";
+    field public static final java.lang.String STRING_TYPE_STEP_COUNTER = "android.sensor.step_counter";
+    field public static final java.lang.String STRING_TYPE_STEP_DETECTOR = "android.sensor.step_detector";
+    field public static final deprecated java.lang.String STRING_TYPE_TEMPERATURE = "android.sensor.temperature";
     field public static final int TYPE_ACCELEROMETER = 1; // 0x1
     field public static final int TYPE_ALL = -1; // 0xffffffff
     field public static final int TYPE_AMBIENT_TEMPERATURE = 13; // 0xd
@@ -10767,6 +10791,7 @@
     field public static final int TYPE_GRAVITY = 9; // 0x9
     field public static final int TYPE_GYROSCOPE = 4; // 0x4
     field public static final int TYPE_GYROSCOPE_UNCALIBRATED = 16; // 0x10
+    field public static final int TYPE_HEART_RATE = 21; // 0x15
     field public static final int TYPE_LIGHT = 5; // 0x5
     field public static final int TYPE_LINEAR_ACCELERATION = 10; // 0xa
     field public static final int TYPE_MAGNETIC_FIELD = 2; // 0x2
diff --git a/core/java/android/hardware/Sensor.java b/core/java/android/hardware/Sensor.java
index 89a5819..4bea9ee 100644
--- a/core/java/android/hardware/Sensor.java
+++ b/core/java/android/hardware/Sensor.java
@@ -38,6 +38,13 @@
     public static final int TYPE_ACCELEROMETER = 1;
 
     /**
+     * A constant string describing an accelerometer sensor type.
+     *
+     * @see #TYPE_ACCELEROMETER
+     */
+    public static final String STRING_TYPE_ACCELEROMETER = "android.sensor.accelerometer";
+
+    /**
      * A constant describing a magnetic field sensor type.
      * <p>See {@link android.hardware.SensorEvent#values SensorEvent.values}
      * for more details.
@@ -45,6 +52,13 @@
     public static final int TYPE_MAGNETIC_FIELD = 2;
 
     /**
+     * A constant string describing a magnetic field sensor type.
+     *
+     * @see #TYPE_MAGNETIC_FIELD
+     */
+    public static final String STRING_TYPE_MAGNETIC_FIELD = "android.sensor.magnetic_field";
+
+    /**
      * A constant describing an orientation sensor type.
      * <p>See {@link android.hardware.SensorEvent#values SensorEvent.values}
      * for more details.
@@ -55,24 +69,58 @@
     @Deprecated
     public static final int TYPE_ORIENTATION = 3;
 
-    /** A constant describing a gyroscope sensor type.
+    /**
+     * A constant string describing an orientation sensor type.
+     *
+     * @see #TYPE_ORIENTATION
+     * @deprecated use {@link android.hardware.SensorManager#getOrientation
+     *             SensorManager.getOrientation()} instead.
+     */
+    @Deprecated
+    public static final String STRING_TYPE_ORIENTATION = "android.sensor.orientation";
+
+    /**
+     * A constant describing a gyroscope sensor type.
      * <p>See {@link android.hardware.SensorEvent#values SensorEvent.values}
      * for more details. */
     public static final int TYPE_GYROSCOPE = 4;
 
     /**
+     * A constant string describing a gyroscope sensor type.
+     *
+     * @see #TYPE_GYROSCOPE
+     */
+    public static final String STRING_TYPE_GYROSCOPE = "android.sensor.gyroscope";
+
+    /**
      * A constant describing a light sensor type.
      * <p>See {@link android.hardware.SensorEvent#values SensorEvent.values}
      * for more details.
      */
     public static final int TYPE_LIGHT = 5;
 
-    /** A constant describing a pressure sensor type.
+    /**
+     * A constant string describing a light sensor type.
+     *
+     * @see #TYPE_LIGHT
+     */
+    public static final String STRING_TYPE_LIGHT = "android.sensor.light";
+
+    /**
+     * A constant describing a pressure sensor type.
      * <p>See {@link android.hardware.SensorEvent#values SensorEvent.values}
-     * for more details. */
+     * for more details.
+     */
     public static final int TYPE_PRESSURE = 6;
 
     /**
+     * A constant string describing a pressure sensor type.
+     *
+     * @see #TYPE_PRESSURE
+     */
+    public static final String STRING_TYPE_PRESSURE = "android.sensor.pressure";
+
+    /**
      * A constant describing a temperature sensor type
      *
      * @deprecated use
@@ -83,6 +131,17 @@
     public static final int TYPE_TEMPERATURE = 7;
 
     /**
+     * A constant string describing a temperature sensor type
+     *
+     * @see #TYPE_TEMPERATURE
+     * @deprecated use
+     *             {@link android.hardware.Sensor#STRING_TYPE_AMBIENT_TEMPERATURE
+     *             Sensor.STRING_TYPE_AMBIENT_TEMPERATURE} instead.
+     */
+    @Deprecated
+    public static final String STRING_TYPE_TEMPERATURE = "android.sensor.temperature";
+
+    /**
      * A constant describing a proximity sensor type.
      * <p>See {@link android.hardware.SensorEvent#values SensorEvent.values}
      * for more details.
@@ -90,6 +149,13 @@
     public static final int TYPE_PROXIMITY = 8;
 
     /**
+     * A constant string describing a proximity sensor type.
+     *
+     * @see #TYPE_PROXIMITY
+     */
+    public static final String STRING_TYPE_PROXIMITY = "android.sensor.proximity";
+
+    /**
      * A constant describing a gravity sensor type.
      * <p>See {@link android.hardware.SensorEvent#values SensorEvent.values}
      * for more details.
@@ -97,6 +163,13 @@
     public static final int TYPE_GRAVITY = 9;
 
     /**
+     * A constant string describing a gravity sensor type.
+     *
+     * @see #TYPE_GRAVITY
+     */
+    public static final String STRING_TYPE_GRAVITY = "android.sensor.gravity";
+
+    /**
      * A constant describing a linear acceleration sensor type.
      * <p>See {@link android.hardware.SensorEvent#values SensorEvent.values}
      * for more details.
@@ -104,6 +177,14 @@
     public static final int TYPE_LINEAR_ACCELERATION = 10;
 
     /**
+     * A constant string describing a linear acceleration sensor type.
+     *
+     * @see #TYPE_LINEAR_ACCELERATION
+     */
+    public static final String STRING_TYPE_LINEAR_ACCELERATION =
+        "android.sensor.linear_acceleration";
+
+    /**
      * A constant describing a rotation vector sensor type.
      * <p>See {@link android.hardware.SensorEvent#values SensorEvent.values}
      * for more details.
@@ -111,18 +192,42 @@
     public static final int TYPE_ROTATION_VECTOR = 11;
 
     /**
+     * A constant string describing a rotation vector sensor type.
+     *
+     * @see #TYPE_ROTATION_VECTOR
+     */
+    public static final String STRING_TYPE_ROTATION_VECTOR = "android.sensor.rotation_vector";
+
+    /**
      * A constant describing a relative humidity sensor type.
      * <p>See {@link android.hardware.SensorEvent#values SensorEvent.values}
      * for more details.
      */
     public static final int TYPE_RELATIVE_HUMIDITY = 12;
 
-    /** A constant describing an ambient temperature sensor type.
+    /**
+     * A constant string describing a relative humidity sensor type
+     *
+     * @see #TYPE_RELATIVE_HUMIDITY
+     */
+    public static final String STRING_TYPE_RELATIVE_HUMIDITY = "android.sensor.relative_humidity";
+
+    /**
+     * A constant describing an ambient temperature sensor type.
      * <p>See {@link android.hardware.SensorEvent#values SensorEvent.values}
-     * for more details. */
+     * for more details.
+     */
     public static final int TYPE_AMBIENT_TEMPERATURE = 13;
 
     /**
+     * A constant string describing an ambient temperature sensor type.
+     *
+     * @see #TYPE_AMBIENT_TEMPERATURE
+     */
+    public static final String STRING_TYPE_AMBIENT_TEMPERATURE =
+        "android.sensor.ambient_temperature";
+
+    /**
      * A constant describing an uncalibrated magnetic field sensor type.
      * <p>
      * Similar to {@link #TYPE_MAGNETIC_FIELD} but the hard iron calibration (device calibration
@@ -139,6 +244,13 @@
      * details.
      */
     public static final int TYPE_MAGNETIC_FIELD_UNCALIBRATED = 14;
+    /**
+     * A constant string describing an uncalibrated magnetic field sensor type.
+     *
+     * @see #TYPE_MAGNETIC_FIELD_UNCALIBRATED
+     */
+    public static final String STRING_TYPE_MAGNETIC_FIELD_UNCALIBRATED =
+        "android.sensor.magnetic_field_uncalibrated";
 
     /**
      * A constant describing an uncalibrated rotation vector sensor type.
@@ -156,10 +268,17 @@
      * <p>See {@link android.hardware.SensorEvent#values SensorEvent.values} for more
      * details.
      */
-
     public static final int TYPE_GAME_ROTATION_VECTOR = 15;
 
     /**
+     * A constant string describing an uncalibrated rotation vector sensor type.
+     *
+     * @see #TYPE_GAME_ROTATION_VECTOR
+     */
+    public static final String STRING_TYPE_GAME_ROTATION_VECTOR =
+        "android.sensor.game_rotation_vector";
+
+    /**
      * A constant describing an uncalibrated gyroscope sensor type.
      * <p>Similar to {@link #TYPE_GYROSCOPE} but no gyro-drift compensation has been performed
      * to adjust the given sensor values. However, such gyro-drift bias values
@@ -174,6 +293,14 @@
     public static final int TYPE_GYROSCOPE_UNCALIBRATED = 16;
 
     /**
+     * A constant string describing an uncalibrated gyroscope sensor type.
+     *
+     * @see #TYPE_GYROSCOPE_UNCALIBRATED
+     */
+    public static final String STRING_TYPE_GYROSCOPE_UNCALIBRATED =
+        "android.sensor.gyroscope_uncalibrated";
+
+    /**
      * A constant describing a significant motion trigger sensor.
      * <p>
      * It triggers when an event occurs and then automatically disables
@@ -186,6 +313,14 @@
     public static final int TYPE_SIGNIFICANT_MOTION = 17;
 
     /**
+     * A constant string describing a significant motion trigger sensor.
+     *
+     * @see #TYPE_SIGNIFICANT_MOTION
+     */
+    public static final String STRING_TYPE_SIGNIFICANT_MOTION =
+        "android.sensor.significant_motion";
+
+    /**
      * A constant describing a step detector sensor.
      * <p>
      * A sensor of this type triggers an event each time a step is taken by the user. The only
@@ -198,6 +333,13 @@
     public static final int TYPE_STEP_DETECTOR = 18;
 
     /**
+     * A constant string describing a step detector sensor.
+     *
+     * @see #TYPE_STEP_DETECTOR
+     */
+    public static final String STRING_TYPE_STEP_DETECTOR = "android.sensor.step_detector";
+
+    /**
      * A constant describing a step counter sensor.
      * <p>
      * A sensor of this type returns the number of steps taken by the user since the last reboot
@@ -211,7 +353,14 @@
     public static final int TYPE_STEP_COUNTER = 19;
 
     /**
-     * A constant describing the geo-magnetic rotation vector.
+     * A constant string describing a step counter sensor.
+     *
+     * @see #TYPE_STEP_COUNTER
+     */
+    public static final String STRING_TYPE_STEP_COUNTER = "android.sensor.step_counter";
+
+    /**
+     * A constant describing a geo-magnetic rotation vector.
      * <p>
      * Similar to {@link #TYPE_ROTATION_VECTOR}, but using a magnetometer instead of using a
      * gyroscope. This sensor uses lower power than the other rotation vectors, because it doesn't
@@ -222,6 +371,32 @@
     public static final int TYPE_GEOMAGNETIC_ROTATION_VECTOR = 20;
 
     /**
+     * A constant string describing a geo-magnetic rotation vector.
+     *
+     * @see #TYPE_GEOMAGNETIC_ROTATION_VECTOR
+     */
+    public static final String STRING_TYPE_GEOMAGNETIC_ROTATION_VECTOR =
+        "android.sensor.geomagnetic_rotation_vector";
+
+    /**
+     * A constant describing a heart rate monitor.
+     * <p>
+     * A sensor that measures the heart rate in beats per minute.
+     * <p>
+     * value[0] represents the beats per minute when the measurement was taken.
+     * value[0] is 0 if the heart rate monitor could not measure the rate or the
+     * rate is 0 beat per minute.
+     */
+    public static final int TYPE_HEART_RATE = 21;
+
+    /**
+     * A constant string describing a heart rate monitor.
+     *
+     * @see #TYPE_HEART_RATE
+     */
+    public static final String STRING_TYPE_HEART_RATE = "android.sensor.heart_rate";
+
+    /**
      * A constant describing all sensor types.
      */
     public static final int TYPE_ALL = -1;
@@ -265,7 +440,8 @@
             // added post 4.3
             REPORTING_MODE_ON_CHANGE,  1, // SENSOR_TYPE_STEP_DETECTOR
             REPORTING_MODE_ON_CHANGE,  1, // SENSOR_TYPE_STEP_COUNTER
-            REPORTING_MODE_CONTINUOUS, 5  // SENSOR_TYPE_GEOMAGNETIC_ROTATION_VECTOR
+            REPORTING_MODE_CONTINUOUS, 5, // SENSOR_TYPE_GEOMAGNETIC_ROTATION_VECTOR
+            REPORTING_MODE_ON_CHANGE, 1  // SENSOR_TYPE_HEART_RATE_MONITOR
     };
 
     static int getReportingMode(Sensor sensor) {
@@ -321,6 +497,8 @@
     private int     mMinDelay;
     private int     mFifoReservedEventCount;
     private int     mFifoMaxEventCount;
+    private String  mStringType;
+    private String  mRequiredPermission;
 
     Sensor() {
     }
@@ -401,6 +579,20 @@
         return mFifoMaxEventCount;
     }
 
+    /**
+     * @return The type of this sensor as a string.
+     */
+    public String getStringType() {
+        return mStringType;
+    }
+
+    /**
+     * @return The permission required to access this sensor. If empty, no permission is required.
+     */
+    public String getRequiredPermission() {
+        return mRequiredPermission;
+    }
+
     /** @hide */
     public int getHandle() {
         return mHandle;
diff --git a/core/jni/android_hardware_SensorManager.cpp b/core/jni/android_hardware_SensorManager.cpp
index 24e0b0a..7a4728d 100644
--- a/core/jni/android_hardware_SensorManager.cpp
+++ b/core/jni/android_hardware_SensorManager.cpp
@@ -49,6 +49,8 @@
     jfieldID    minDelay;
     jfieldID    fifoReservedEventCount;
     jfieldID    fifoMaxEventCount;
+    jfieldID    stringType;
+    jfieldID    requiredPermission;
 } gSensorOffsets;
 
 
@@ -73,6 +75,9 @@
     sensorOffsets.fifoReservedEventCount =
             _env->GetFieldID(sensorClass, "mFifoReservedEventCount",  "I");
     sensorOffsets.fifoMaxEventCount = _env->GetFieldID(sensorClass, "mFifoMaxEventCount",  "I");
+    sensorOffsets.stringType = _env->GetFieldID(sensorClass, "mStringType", "Ljava/lang/String;");
+    sensorOffsets.requiredPermission = _env->GetFieldID(sensorClass, "mRequiredPermission",
+                                                        "Ljava/lang/String;");
 }
 
 static jint
@@ -89,6 +94,8 @@
     const SensorOffsets& sensorOffsets(gSensorOffsets);
     jstring name = env->NewStringUTF(list->getName().string());
     jstring vendor = env->NewStringUTF(list->getVendor().string());
+    jstring stringType = env->NewStringUTF(list->getStringType().string());
+    jstring requiredPermission = env->NewStringUTF(list->getRequiredPermission().string());
     env->SetObjectField(sensor, sensorOffsets.name,      name);
     env->SetObjectField(sensor, sensorOffsets.vendor,    vendor);
     env->SetIntField(sensor, sensorOffsets.version,      list->getVersion());
@@ -100,7 +107,11 @@
     env->SetIntField(sensor, sensorOffsets.minDelay,     list->getMinDelay());
     env->SetIntField(sensor, sensorOffsets.fifoReservedEventCount,
                      list->getFifoReservedEventCount());
-    env->SetIntField(sensor, sensorOffsets.fifoMaxEventCount, list->getFifoMaxEventCount());
+    env->SetIntField(sensor, sensorOffsets.fifoMaxEventCount,
+                     list->getFifoMaxEventCount());
+    env->SetObjectField(sensor, sensorOffsets.stringType, stringType);
+    env->SetObjectField(sensor, sensorOffsets.requiredPermission,
+                        requiredPermission);
     next++;
     return size_t(next) < count ? next : 0;
 }
diff --git a/core/res/AndroidManifest.xml b/core/res/AndroidManifest.xml
index e008984..3c40d43 100644
--- a/core/res/AndroidManifest.xml
+++ b/core/res/AndroidManifest.xml
@@ -481,6 +481,13 @@
         android:label="@string/permlab_writeProfile"
         android:description="@string/permdesc_writeProfile" />
 
+    <!-- Allows an application to access data from sensors that the user uses to
+         measure what is happening inside his/her body, such as heart rate. -->
+    <permission android:name="android.permission.BODY_SENSORS"
+        android:permissionGroup="android.permission-group.PERSONAL_INFO"
+        android:label="@string/permlab_bodySensors"
+        android:description="@string/permdesc_bodySensors" />
+
     <!-- =============================================================== -->
     <!-- Permissions for accessing the device calendar                   -->
     <!-- =============================================================== -->
diff --git a/core/res/res/values/strings.xml b/core/res/res/values/strings.xml
index 11f993d..dbe5aa3 100644
--- a/core/res/res/values/strings.xml
+++ b/core/res/res/values/strings.xml
@@ -1328,6 +1328,14 @@
       as your name and contact information.  This means the app can identify you
       and may send your profile information to others.</string>
 
+    <!-- Title of the body sensors permission, listed so the user can decide whether to allow the application to access body sensor data. [CHAR LIMIT=30] -->
+    <string name="permlab_bodySensors">body sensors (like heart rate monitors)
+    </string>
+    <!-- Description of the body sensors permission, listed so the user can decide whether to allow the application to access data from body sensors. [CHAR LIMIT=NONE] -->
+    <string name="permdesc_bodySensors" product="default">Allows the app to
+      access data from sensors you use to measure what’s happening inside your
+      body, such as heart rate.</string>
+
     <!-- Title of the read social stream permission, listed so the user can decide whether to allow the application to read information from the user's social stream. [CHAR LIMIT=30] -->
     <string name="permlab_readSocialStream" product="default">read your social stream</string>
     <string name="permdesc_readSocialStream" product="default">Allows the app
diff --git a/native/android/sensor.cpp b/native/android/sensor.cpp
index 76c6eda..fb4de9e 100644
--- a/native/android/sensor.cpp
+++ b/native/android/sensor.cpp
@@ -153,3 +153,23 @@
 {
     return static_cast<Sensor const*>(sensor)->getMinDelay();
 }
+
+int ASensor_getFifoMaxEventCount(ASensor const* sensor)
+{
+    return static_cast<Sensor const*>(sensor)->getFifoMaxEventCount();
+}
+
+int ASensor_getFifoReservedEventCount(ASensor const* sensor)
+{
+    return static_cast<Sensor const*>(sensor)->getFifoReservedEventCount();
+}
+
+const char* ASensor_getStringType(ASensor const* sensor)
+{
+    return static_cast<Sensor const*>(sensor)->getStringType().string();
+}
+
+const char* ASensor_getRequiredPermission(ASensor const* sensor)
+{
+    return static_cast<Sensor const*>(sensor)->getRequiredPermission().string();
+}