Just switched from Garmin Vivosmart HR to Mi Band 4. How do I turn off notifications at night? : r/miband
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]
Garmin vivosmart 4 Activity Tracker with Heart Rate Monitor - Black / Black (S/M) - 010-01995-00