For the unstoppable athlete who carves out time to train before dawn and after dusk, the pursuit of progress never fades. This is more than a watch; it's your training companion in the hours others ignore. Features Vivid 1.3-inch AMOLED touchscreen Fastest in class processor, 2x the speed of PACE 3 38 hours of GPS activity tracking 20 days of daily use and sleep tracking Advanced optical heart rate sensor Downloadable global offline maps Specs Dimensions: 46 x 46 x 42.25smm Weight: 49g (Silocone Band), 37g (Nylon Band) Display: 1.3 inch, 416 x 416 Display Resolution, Touch Screen Always-On AMOLED Display Materials: Screen (Mineral Glass), Bezel & Cover (Fiber Reinforced Polymer), Band (Silicone or Nylon) Watch Band: 22mm (Width), Nylon (140 to 220mm), Silicone (130 to 220mm) Design: Digital Dial, Back Button Connectivity: Bluetooth, Data Sync (Wi-Fi / COROS App) Durability: Water Resistance (5 ATM), Working Temperature (-20°C to 50°C), Storage Temperature (-20°C to 60°C) Memory: 32GB (Internal), Active Memory (1200 hours - estimates based on outdoor activities) Geo Location: Satellite Systems (GPS, GLONASS, Galileo, Beidou, QZSS), GNSS Chipset (All-Satellite Dual-Frequency) 3rd Party Integration: Nike Run Club, Komoot, TrainingPeaks, Strava, Relive, adidas Running, Apple Health, Stryd, Final Surge, Runalyze, Running Quotient, Decathlon System Languages: English, Simplified Chinese, Traditional Chinese, German, Spanish, French, Polish, Thai, Japanese, Korean, Portuguese, Italian, Russian, Vietnamese