From the manufacturer
【OS + Chipsets + Storage】 Wear OS 4, Snapdragon W5 + BES2700 dual chipsets with 2GB RAM and 32GB ROM memory
【Battery Life + Fast Charging】Up to 100 hours battery life in Smart Mode (Up to 48 hours with heavy use), and 12 days battery life in Power Saver Mode. Fully charged in 60 minutes with VOOC fast charging, and 24 hours of use with 10 minutes of charging.
【1.43″ AMOLED Display】Default brightness of 600 nits, up to 1000 nits in High Brightness mode. 466*466 resolution with 326 PPI.
【Design & Durability 】Stainless Steel chassis and Sapphire Crystal cover, Military grade MIL-STD-810H standard certified. 5 ATM + IP68 rated.
【Dual Frequency GPS】Watch 2 can receive the L5 GPS frequency in addition to the commonly used L1 frequency, leading to higher precision tracking for walks, runs, and rides.
【100+ Sports mode】Track all your favorite workouts, with extensive specialized metrics for Running, Badminton, Tennis & others.
【Health & Wellness 】Detailed sleep tracking, stress monitoring, heart rate monitoring, high/low heart rate warning, Resting heart rate, Sleep baseline heart rate, Daily activity, movement reminder, and various other health metrics.
【Watch Faces】20 built-in watch faces + 80 downloadable watch faces that can also work in Power Saver Mode.
【Compatibility & Connectivity】OnePlus Watch 2 is compatible with Android smartphones only with Android 8.0 and above, which should also have GMS version 23.45.23. To connect with your smartphone – download OHealth App from Google Play store.