Samsung Gear S4 could feature much improved battery life - Pock
Samsung Galaxy S4 battery life tests are done, here's how it did
Abysmal battery life on Gear S4. Look at the percentages that have been used and my current percentage, as well as how long it's been since last full charge. This doesn't add
Battery Life & Charging - Samsung Galaxy S 4 Review - Part 1
Samsung S4 wins both fastest smartphone and best battery-life in UK consumer group's tests