Fitbit Inspire vs Huawei Band 3 vs Skygrand 2019 (Amazon) fitness trackers - Heart rate and steps

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Fitbit Inspire HR vs Huawei Band 3 vs Skygrand (Amazon) fitness trackers vs Polar chest strap H7 - Heart rate and steps
Generic tracker sold on Amazon versus premium fitness trackers.
Skygrand: Updated 2019 Version High-End Fitness Tracker HR, Activity Trackers Health Exercise Watch with Heart Rate and Sleep Monitor, Smart Band Calorie Counter, Step Counter, Pedometer Walking for Men Women