Lintelek Fitness Tracker, 107Plus Heart Rate Monitor Activity Tracker, Stopwatch, Relax,14 Sports Modes,IP67 Waterproof… Price: $37,99 (as of 16/06/2021 17:29 PST- Details) & FREE Shipping.

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【Pedometer & 14 Sport Modes】Track all-day step counter, including 14 activities to capture more precise heart-rate data, calorie consumed, distance and other stats even when disconnected with your phone.
【No need extra charger & IP68 Waterproof】 1. Built-in USB design make it easy to charge. (The specific use please reference to the manual. ) 2. You can wear it while swimming or even when you take a shower without any worries.