Premium AI-powered GPS Running Watch. Dual-band Circularly-polarized GPS. Offline Maps & Route Navigation. Zepp Coach™: AI Guidance for Runners. Track 24/7 Health & Fitness Data. Lightweight Design with Titanium Alloy. Display Corning GG3 tempered glass and anti-fingerprint coating. Display Resolution: 480x480, with max 1,000nit. 440mAh capacity big Battery. Sensors: BioTrackerTM 3.0 PPG biometric sensor. Connection: Wi-Fi 2.4GHz, Bluetooth 5.3.