| Display Size |
46mm: 1.2 in. 240 x 240 (64 colors) |
| 42mm: 1.1 in. 218 x 218 (64 colors) |
| Display Type |
Memory LCD |
| Screen Material |
Sapphire Glass |
| Bezel Material |
46mm: Titanium Alloy |
| 42mm: Stainless Steel |
| Strap Material |
Silicone |
| Quick Release Bands |
46mm: 22mm |
| 42mm: 20mm |
| Physical Size |
46mm: 46 x 46 x 11.9 mm |
| 42mm: 42.00 x 42.00 x 11.75 mm |
| Weight With Silicone Band |
46mm: 55.3 g |
| 42mm: 49 g |
| Weight With Nylon Band |
46mm: 45 g |
| 42mm: 38 g |
| Phone Connection |
Bluetooth |
| Accessory Connection |
ANT+/Bluetooth |
| Navigation |
GPS, GLONASS, BDS |
| Sensors |
Optical Heart Rate Monitor |
| Barometric Altimeter |
| Accelerometer |
| Gyroscope |
| Compass |
| Water Resistance |
10ATM (100 Meters/328 Feet) |
| Working Temperature |
14°F to 140°F (-10°C to 60°C) |
| Storage Temperature |
-4°F to 158°F (-20°C to 70°C) |
| Charging Time |
Less than 2 Hours |
| Battery Life (46mm/42mm) |
Up to 100/80 Hours in UltraMax GPS Mode |
| Up to 35/25 Hours in Full GPS Mode |
| Up to 30/24 Days for Regular Use |
| Supported Workouts |
Run, Indoor Run, Trail Run, Track Run, Mountain Climb, Hike, Bike, Indoor Bike, Pool Swim, Open Water, Triathlon, Gym Cardio, GPS Cardio, Ski, Snowboard, XC Ski, Ski Touring, Multisport, Strength, Training |