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Garmin vívosmart 3, Fitness/Activity Tracker with Smart Notifications and Heart Rate Monitoring, Black ,Small-Medium : Amazon.co.uk: Sports & Outdoors
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The validity of activity trackers is affected by walking speed: the criterion validity of Garmin Vivosmart® HR and StepWatch™ 3 for measuring steps at various walking speeds under controlled conditions [PeerJ]
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Compare Garmin Vivofit 3 vs Garmin Vivosmart 3 - Garmin Vivofit 3 vs Garmin Vivosmart 3 Comparison by Price, Specifications, Reviews & Features | Gadgets Now
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