| PRIMARY SPECIFICATIONS | |
| Model | B57 |
| Chip type | NRF52832 |
| Bluetooth | BT4.0 |
| Waterproof rating | IP67 |
| Touch | Single Touch |
| Display dimensions | 1.3 inch IPS Resolution: 240*240 |
| Charging type | Wireless charging |
| Charging time | 1.5H |
| Stand by | 25 days |
| In Use | 7 days |
| Battery Power | |
| App languages | English, Ukrainian, Russian, German, Italian, Japanese, French, Simplified Chinese, Traditional Chinese, Portuguese |
| Watch languages | English, Portuguese |
| Compatible OS | Android 4.4 and above, IOS 9.0 or above |
| App | Weatfit 2.0 |
| Strap Material | Silicon |
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