SleepRate is a sleep monitoring app for Android that uses heart rate as a key measure of sleep quality and is known for its great dashboard summaries.
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Pro Tracks sleep using heart rate
Instead of tracking sleep by frequency of movement during the night, SleepRate tracks sleep by monitoring heart rate through the sleep enhancement kit.
Pro Compares sleep quality to several variables
SleepRate tracks hear rate, audio, and stress to determine which environmental factors effect users the most.
Pro Very detailed dashboard
The dashboard displays sleep quality on a nightly basis or compares multiple nights. It also breaks down different levels of sleep in a chart and how much time was spent awake during the night.
Con Sleep improvement kit must be purchased separately
The "sleep improvement kit" containing the heart monitor costs an extra $99 and is crucial for the app's functionality.
Con Uncomfortable monitor
The heart rate monitor that must be used with SleepRate is uncomfortable to wear.