Key Features Stainless steel case, sapphire AMOLED display 1.5-inch, 480 × 480 resolution, 3000 nits brightness 658 mAh battery, 21 days typical use Dual-band GPS with offline maps 64GB onboard storage, Bluetooth calls NFC payments via Zepp Pay BioTracker 6.0 PPG sensor 180+ sports modes including HYROX and golf 10 ATM water resistance, diving up to 45 m Zepp OS 6 with Hybrid Training System