Garmin Vivofit 4, First Take: Great battery life, but no heart-rate monitoring | ZDNET
vívofit Owner's Manual - Replacing the vívofit Device Batteries
GARMIN Garmin vivofit jr. 3 - waterproof digital… | DeinDeal
Garmin Vivofit Jr with 1632 battery and green XL band. Needs Battery. Used | eBay
Amazon.com: Garmin vívofit 4 activity tracker with 1+ year battery life and color display. Small/Medium, Black. 010-01847-00, 0.61 inches : Sports & Outdoors