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Technical Specifications
Processor
| Processor | Dual-core Apple S8 |
| Graphics | PowerVR |
Memory
| Internal storage | 32 GB |
| RAM | 1 GB |
Others
| NFC (Near Field Communication) | Yes |
| aGPS geo-location | Yes |
| Biological sensors | 2nd generation optical heart sensor |
| SIM Card Format | eSIM |
Connectivity
| Wi-Fi | 802.11 b/g/n |
| Wi-Fi Bands | 2.4 GHz only |
| Wi-Fi Calling certified | Yes |
| LTE Bands | 1, 2, 3, 4, 5, 6, 7, 8, 18, 19, 20, 25, 26, 28, 39, 40, 41 et 66 |
| VoLTE certified | Quebec: Yes | International: No |
| 5G certified | No |
| Bluetooth | 5.3, A2DP, LE |
| 2G/3G voice and data | Non-functional |
Physical
| Case material | Aluminum |
| Case size | 40mm case: 40 x 34 x 10.7 mm 44mm case: 44 x 38 x 10.7 mm |
| Weight | 28g |
| Ingress Protection rating | Water resistant to 50 m |
In the box
| USB Cable | Yes |
| Charger | No |
| Band | 40mm case : Midnight Sport Band (Small/Medium) 44mm case : Midnight Sport Band (Medium/Large) |
Screen
| Resolution | 40mm case: 394 x 324 pixels (~326 ppi) 44mm case: 448 x 368 pixels (~326 ppi) |
| Size (inches diagonal) | 40mm case: 1.57-inch OLED display 44mm case: 1.78-inch OLED display |
Battery
| Removable | No |
| Capacity | 40mm case : 245 mAh 44mm case : 296 mAh |
Apple Watch User Guide