Mi Smart Band 4: Step Up, Live More

With #MiSmartBand4, wear and redefine lifestyles from your wrist!   - Full color AMOLED touch display - Up to 20 days battery on a single charge - water resistant up to 50m - 24/7 heart rate monitoring and sleep tracking - View call, text, and app notifications - Activity and swim tracking  Time to choose the smart living.

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