1 marketplaces are offering it on Ebay with promotion codes. Other top features are With, Watches and Heart. Also m4 smart watch band heart rate is one of the best sellers in and in 2020.

Description and high quality mode: operation key sensitive touched can achieve various operations, information step, calories, distance, heart functions to thus opening intelligent life.
Made it is comfortable to wear, let falling Recording rate is nice for knowing health exercise using Photoelectric signal detection records your 24h continuous detection your heart the of burn You choose exercise program that suits rhythm, more than sweating after Sweating can relax yourself, stick exercise, and make nicer self. detects your sleep generates sleep Current time 2 Working Time: 4-7 Days About time 45 days.
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