Dimensions
Size comparison
Versa 4Watch 4
| Versa 4 | Watch 4 | Difference | |
|---|---|---|---|
| Height | 40.5 mm | 45.3 mm | −4.8 mm |
| Width | 40.5 mm | 39.1 mm | +1.4 mm |
| Thickness | 11.2 mm | 11.2 mm | = |
Drawn to the same scale from the official dimensions (front and side).
Why is Versa 4 better than Watch 4?
Versa 4 has no measurable advantages in this pair.
Why is Watch 4 better than Versa 4?
- Battery life (smartwatch mode)6 days vs 10 days+67%
Specifications
Side by side
| Design & durability | ||
| Case size | 40 mm | 45 mm |
| Weight | — | 32 g |
| Thickness | 11.2 mm | 11.2 mm |
| Height | 40.5 mm | 45.3 mm |
| Width | 40.5 mm | 39.1 mm |
| Case material | Aluminium | Plastic / polymer |
| Strap material | Silikon | Silikon |
| Water resistance | — | 5 ATM |
| Water rating (maker) | — | 50 m / 5 bar / 5 ATM |
| Colours | — | Black, Gold |
| Display | ||
| Screen size | — | 1.75″ |
| Display technology | AMOLED | AMOLED |
| Panel | AMOLED | AMOLED |
| AMOLED / OLED display | Yes | Yes |
| Always-on display | Yes | Yes |
| Touchscreen | Yes | — |
| Resolution (width) | — | 390 px |
| Resolution (height) | — | 450 px |
| Pixel density | — | 340 ppi |
| Refresh rate | — | 60 Hz |
| Battery | ||
| Battery life (smartwatch mode) | 6 days | 10 days |
| Battery capacity | — | 451 mAh |
| Battery type | Li-Po | Li-Ion |
| Health sensors | ||
| Optical heart rate | Yes | Yes |
| Blood oxygen (SpO2) | Yes | Yes |
| ECG | Yes | Yes |
| Skin temperature | Yes | — |
| Sleep tracking | Yes | Yes |
| Sensors | heart rate, accelerometer, ambient light | Accelerometer, gyro, heart rate, SpO2 |
| Sports & navigation | ||
| Built-in GPS | Yes | Yes |
| Satellite systems | GPS, GLONASS | GLONASS, GALILEO, BDS, QZSS |
| Multisport / triathlon mode | — | Yes |
| Connectivity | ||
| NFC payments | Yes | Yes |
| LTE (cellular) | — | Yes |
| eSIM | — | Yes |
| Bluetooth | 5 | 5.2 |
| Smart features | ||
| Calls from the wrist | Yes | — |
| Speaker | — | Yes |
| Voice assistant | Yes | — |
| Storage | — | 4 GB |
| RAM | — | 0.031 GB |
| Platform | ||
| Operating system | Fitbit OS | MagicOS 7.2 |
| Platform | Proprietary | Proprietary |
| Works with | iOS, Android | iOS, Android |
