Why is Versa 3 better than Versa 4?
Versa 3 has no measurable advantages in this pair.
Why is Versa 4 better than Versa 3?
Versa 4 has no measurable advantages in this pair.
Specifications
Side by side
| Design & durability | ||
| Case size | — | 40 mm |
| Thickness | — | 11.2 mm |
| Height | — | 40.5 mm |
| Width | — | 40.5 mm |
| Case material | Aluminium | Aluminium |
| Strap material | — | Silikon |
| Display | ||
| Display technology | AMOLED | AMOLED |
| Panel | AMOLED | AMOLED |
| AMOLED / OLED display | Yes | Yes |
| Always-on display | Yes | Yes |
| Touchscreen | Yes | Yes |
| Battery | ||
| Battery life (smartwatch mode) | 6 days | 6 days |
| Battery type | Li-Po | Li-Po |
| Health sensors | ||
| Optical heart rate | Yes | Yes |
| Blood oxygen (SpO2) | Yes | Yes |
| ECG | — | Yes |
| Skin temperature | Yes | Yes |
| Sleep tracking | Yes | Yes |
| Sensors | heart rate, accelerometer, ambient light | heart rate, accelerometer, ambient light |
| Sports & navigation | ||
| Built-in GPS | Yes | Yes |
| Satellite systems | GPS | GPS, GLONASS |
| Connectivity | ||
| NFC payments | Yes | Yes |
| Wi-Fi | Wi-Fi 4 | — |
| Bluetooth | 4 | 5 |
| Smart features | ||
| Calls from the wrist | — | Yes |
| Voice assistant | Yes | Yes |
| Music on the watch | Yes | — |
| Platform | ||
| Operating system | — | Fitbit OS |
| Platform | — | Proprietary |
| Works with | iOS, Android | iOS, Android |
