Product description
- Built-in GPS and continuous heart rate: monitor your heart rate and track your workout routes without your phone
- Scientific sleep tracking: keep track of light, deep and REM sleep stages to make your sleep truly restful
- 5ATM water-resistance: support all day wear, rain, and even a swim in the pool, which allows you to dive into becoming a better you
- Professional running Coach: One press to start the workout app instantly and get workout data such as recovery time and Vo2 Max
- Long battery life: a single charge gives you 21 days of normal usage. Workout mode can last 4-5 hours (per-second hr. monitoring + GPS on)
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