Garmin Vivofit 4, First Take: Great battery life, but no heart-rate monitoring | ZDNET
Support: Battery Replacement on a vívofit® jr. 2 - YouTube
Garmin vivofit jr. 2, Kids Fitness/Activity Tracker, 1-year Battery Life, Adjustable Band, Disney Princess, Purple Disney Princess - New Disney Princess - Purple
vívofit jr. - Replacing the Battery
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 : Electronics
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 : Electronics