4. OnePlus 3T
OnePlus recently launched the OnePlus 3T, a successor to the famous OnePlus 3, which was also released in 2016. Perhaps the only thing that differentiates these two devices is the bigger battery of the OnePlus 3T, which packs 3,400mAh, 400mAh more than its predecessor, and which naturally fares much better in performance and real life battery tests as a result. The OnePlus 3T easily lasts a complete day (or a little more) on a single full-charge. TechRadar ran expansive HD video tests on the OnePlus 3T with Wifi on and accounts sync in progress. The budget smartphone not only surpassed its predecessor comfortably, it also came near the high-end devices like the Samsung Galaxy S7 and S7 Edge. OnePlus also rolled out Dash Charging with the OnePlus 3T, which slashes the time needed to fully charge the device. A Dash charger produces a larger electric current to create consistent and stable charging speeds without any pressure.