Replacing the batteries in a Garmin Vivofit 4 - YouTube
vívofit jr. 2 - Replacing the Battery
Garmin Vivofit Battery Replacement Tutorial - Vivofit How To - YouTube
vívofit jr. - Replacing the Battery
vívofit Owner's Manual - Replacing the vívofit Device Batteries
Amazon.com: HQRP 4-Pack Battery Compatible with Garmin Vivofit Vivofit-2 Activity Tracker Fitness Training Computer (2 Batteries fits Training Computer + 2 Batteries fits Heart-Rate Monitor) 010-01225-00 : Sports & Outdoors
Amazon.com: Garmin vivofit jr. 3, Fitness Tracker for Kids, Includes Interactive App Experience, Swim-Friendly, Up To 1-year Battery Life, Blue Stars : Sports & Outdoors