HUAWEI Band 4 Smart Band, Fitness Activities Tracker with 0.96" Color Screen, 24/7 Continuous Heart Rate Monitor, Sleep Tracking, 5ATM Waterproof, up to 6 Days of Usage Time, Graphite Black : Amazon.co.uk:
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Amazon.com: HUAWEI Band 3e Smart Fitness Activity Tracker, Dual Wrist & Footwear Mode, 5ATM Water Resistance for Swim, Professional Running Guidance, Black, One Size