| Manufacturer | TCL |
| Model | MT40U |
| Storage | 512 MB |
| RAM | 256 MB |
| Screen Size | 1.3 inches, 240 x 240 pixels |
| SIM Card Type | Nano Sim |
| 2G Network | GSM 900/1800 |
| 3G Network | UMTS B1/5/8 |
| 4G Network | FDD B1/3/5/8/28A/28B |
| Battery Capacity | 600mAh |
| Bluetooth | Yes, V4.2 |
| Water and Dust Resistant Rating | IP65 |
| Cable Type | Micro-USB |
| Dimensions | 45 x 39.05 x 14.55mm |
| Weight | <50g (including rubber wristband) |