5. OnePlus 5
Battery life under heavy load: 13 hours 06 minutes
Battery: Non-removable Li-Po 3300 mAh battery
If you have been looking up the latest smartphones, then you likely are aware of the OnePlus brand. OnePlus is a Chinese smartphone manufacturer focused on making high-performance smartphones that are able to go toe-to-toe with flagship products, but at a fraction of the price. As you can see, the OnePlus 5, the number 5 in our list of smartphones with the best battery life in November 2017 has the smallest battery so far, only 3300 mAh, but it lasted longer during the testing. This was achieved due to the high degree of optimization that this smartphone boasts. Everything in the smartphone operates at its peak efficiency, and this is why this smartphone can outperform other products priced similarly or even higher.
