Két chip van benne.
Az egyiket a WOS használja a másikat egy saját.
Watch 2 runs on a combination of Wear OS, which runs on the Snapdragon W5 chipset, and an RTOS, which runs on the BES 2700. The combination of RTOS and 2700 is running most of the show in the background, including low-level activities and things like connectivity, sleep and heart rate tracking, and fitness tracking. Then, when the user interacts with Wear OS-specific features and applications, the OS fires up the W5 chipset.
The Watch 2 features a sizable 500mAh battery, which OnePlus claims provides up to 100 hours in Smart mode and 12 days in Power Saving mode
https://www.gsmarena.com/oneplus_watch_2_hands_on_review-news-61763.php
Ami furán van megoldva, hogy a kisebb teljesítményre csak át kell kapcsolni, viszont wear os-re visszakapcsolni, egy ujraindítás kell.