| Hardware Specification | ||
| BLE SoC | nRF52832 | |
| Processor | ARM Cortex M0 32 bit processor | |
| Memory | FLASH | 1MB embedded |
| RAM | 24KB | |
| External FLASH | 512KB | |
| Display | Size | 0.91 |
| Resolution | 128*32pixels | |
| Bluetooth | -93 dBm sensitivity in Bluetooth® low energy mode | |
| Antenna | Built-in | |
| Sensor | ST 3-Axis Accelerometer, Pixart 8001 Heart rate | |
| Key | N/A | |
| Battery | 110mAh | |
| Vibration | ERM | |
| Charger | N/A | |
| Certification & Regulation | CE, FCC, and RoHS compliant | |
| Physical Characteristics | Weight | 18g |
| Environment | Waterproof | 3ATM |
| Temperature | Operation 0~50°C, Storage -10~60°C | |
| Humidity | 0~90%, Non-Condensed | |