Amazon.com: SAMSUNG Galaxy Watch Active 2 (40mm, GPS, Bluetooth) Smart Watch with Advanced Health Monitoring, Fitness Tracking, and Long lasting Battery, Pink Gold (Renewed) : Cell Phones & Accessories
How Long Do Watch Batteries Last? 7 Common Brands Included – Chronometer Check
My brother's watch lasted a decade on the original battery, and these batteries are tiny, so I'm just wondering.... how long with a big enough battery could one last? : r/casio