Xiaomi Mi Band 4 : Sports & Outdoors

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Xiaomi Mi Band 4 review: Cheap and decent activity tracking, but not for swimmers

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Xiaomi Mi Band 4 review: A great cheap fitness tracker for under $100

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Xiaomi Mi Band 4 : Sports & Outdoors

Fitness Tracker Color Screen Sports Fitness Tracking Device Heart Rate/Blood Pressure/Blood Oxygen Monitor for Outdoor Exercises

Languages Included English and Chinese. Wristband width 18mm, Adjustable wrist strap length 155-216mm Battery Life: 135mAh battery capacity built in

Xiaomi Mi Band 4

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Xiaomi Mi Band 4 review: A great cheap fitness tracker for under $100