Samsung Galaxy Watch 4 could have 7-day battery life - Android Authority
Galaxy Watch 4 battery life reportedly hits 7 days - 9to5Google
Galaxy Watch 4 Battery Life Sounds Almost Unbelievable
Samsung Galaxy Watch 4 Review | Trusted Reviews
Samsung Galaxy Watch 4 Classic 42mm (3.04 cm) SM-R880NZSAINU Bluetooth with 5ATM Rating, Up to 40 Hours Battery Life, Wear OS (Silver) Price in India - buy Samsung Galaxy Watch 4 Classic
Don't Expect The Galaxy Watch 4 Battery To Last More Than 2 Days
Samsung Galaxy Watch4 Review | PCMag
Samsung Galaxy Watch4 review: Hardware and battery life