The Watch 2 comes equipped with a 500mAh battery, and OnePlus says that can give you up to 100 hours of regular use in Smart Mode, or you can get up to 48 hours with heavy use. OnePlus does note these tests were conducted in a controlled environment, so your mileage will vary. When you have to take the watch off your wrist and give it a charge, the fast charging capabilities mean it can get back up to a full charge in an hour.
Snappiness shouldn’t be much of an issue with the Watch 2 as it sports 2 GB of RAM along with a 32 GB ROM configuration. The dual-engine design swaps between the Snapdragon W5 and BES 2600 MCU Efficiency chipset, depending on what you’re doing. OnePlus says the Snapdragon takes care of the more demanding tasks while the BES 2700 handles the background activities and simple tasks. This is how the watch helps conserve battery life thanks to the more power-hungry chipset only coming online when necessary.
