diff --git a/core/java/android/os/health/HealthStats.java b/core/java/android/os/health/HealthStats.java
index 74ce515..6c648f1 100644
--- a/core/java/android/os/health/HealthStats.java
+++ b/core/java/android/os/health/HealthStats.java
@@ -32,7 +32,7 @@
  * Each of the keys references data in one of five data types:
  *
  * <p>
- * A <b>measurement</b> metric contains a sinlge {@code long} value. That value may
+ * A <b>measurement</b> metric contains a single {@code long} value. That value may
  * be a count, a time, or some other type of value. The unit for a measurement
  * (COUNT, MS, etc) will always be in the name of the constant for the key to
  * retrieve it. For example, the
diff --git a/core/java/android/os/health/UidHealthStats.java b/core/java/android/os/health/UidHealthStats.java
index afc9d78..488a542 100644
--- a/core/java/android/os/health/UidHealthStats.java
+++ b/core/java/android/os/health/UidHealthStats.java
@@ -43,14 +43,14 @@
 
     /**
      * How many milliseconds this statistics report covers in wall-clock time while the
-     * device was on battery including both screen-on and screen-off time.
+     * device was on battery including only screen-off time.
      */
     @HealthKeys.Constant(type=HealthKeys.TYPE_MEASUREMENT)
     public static final int MEASUREMENT_REALTIME_SCREEN_OFF_BATTERY_MS = HealthKeys.BASE_UID + 3;
 
     /**
      * How many milliseconds this statistics report covers that the CPU was running while the
-     * device was on battery including both screen-on and screen-off time.
+     * device was on battery including only screen-off time.
      */
     @HealthKeys.Constant(type=HealthKeys.TYPE_MEASUREMENT)
     public static final int MEASUREMENT_UPTIME_SCREEN_OFF_BATTERY_MS = HealthKeys.BASE_UID + 4;
@@ -65,7 +65,7 @@
 
     /**
      * Key for a TimerStat for the times a
-     * {@link android.os.PowerManager#PARTIAL_WAKE_LOCK full wake lock}
+     * {@link android.os.PowerManager#PARTIAL_WAKE_LOCK partial wake lock}
      * was acquired for this uid.
      */
     @HealthKeys.Constant(type=HealthKeys.TYPE_TIMERS)