vs
3.3Battery life5.3
4.9Health tracking4.9
3.3Sports & outdoor3.9
2.2Smart features6.5
Dimensions
Size comparison
Fenix 6SForerunner 945
| Fenix 6S | Forerunner 945 | Difference | |
|---|---|---|---|
| Height | 42 mm | 47 mm | −5 mm |
| Width | 42 mm | 47 mm | −5 mm |
| Thickness | 13.8 mm | 13.7 mm | +0.1 mm |
| Weight | 58 g | 50 g | +8 g |
Drawn to the same scale from the official dimensions (front and side).
Why is Fenix 6S better than Forerunner 945?
- Sport profiles39 vs 31+26%
Why is Forerunner 945 better than Fenix 6S?
- Battery life (smartwatch mode)9 days vs 14 days+56%
- GPS battery life25 h vs 36 h+44%
- Storage0.06 GB vs 16 GB266.7×
- Weight58 g vs 50 g+16%
Specifications
Side by side
| Design & durability | ||
| Case size | 42 mm | 47 mm |
| Weight | 58 g | 50 g |
| Thickness | 13.8 mm | 13.7 mm |
| Height | 42 mm | 47 mm |
| Width | 42 mm | 47 mm |
| Case material | Stainless steel | Plastic / polymer |
| Sapphire crystal | No | No |
| Lens / cover glass | Corning® Gorilla® Glass DX | Corning® Gorilla® Glass 3 DX |
| Strap material | silicone | silicone |
| Water resistance | — | 5 ATM |
| Water rating (maker) | — | 5 ATM |
| Display | ||
| Screen size | 1.2″ | 1.2″ |
| Display technology | — | Memory-in-pixel (transflective) |
| Panel | — | Sunlight-visible, transflective memory-in-pixel |
| AMOLED / OLED display | — | No |
| Always-on display | — | Yes |
| Resolution (width) | 240 px | 240 px |
| Resolution (height) | 240 px | 240 px |
| Pixel density | 200 ppi | 200 ppi |
| Battery | ||
| Battery life (smartwatch mode) | 9 days | 14 days |
| Battery saver mode | 34 days | — |
| GPS battery life | 25 h | 36 h |
| Wireless charging | No | No |
| Charging | Garmin proprietary plug charger | Garmin proprietary plug charger |
| Health sensors | ||
| Optical heart rate | Yes | Yes |
| Blood oxygen (SpO2) | Yes | Yes |
| Temperature sensor | Yes | Yes |
| HRV tracking | Yes | Yes |
| Sleep tracking | Yes | Yes |
| Sensors | GPS, GLONASS, Galileo, Elevate wrist heart rate monitor, Pulse Ox blood oxygen saturation monitor, Barometric altimeter, Compass, Gyroscope, Accelerometer, Thermometer | GPS, GLONASS, Galileo, Elevate wrist heart rate monitor, Pulse Ox blood oxygen saturation monitor, Barometric altimeter, Compass, Gyroscope, Accelerometer, Thermometer |
| Sports & navigation | ||
| Built-in GPS | Yes | Yes |
| Satellite systems | GLONASS, GALILEO | GLONASS, GALILEO |
| Offline maps | — | Yes |
| Barometric altimeter | Yes | Yes |
| Compass | Yes | Yes |
| Multisport / triathlon mode | Yes | Yes |
| Sport profiles | 39 | 31 |
| Connectivity | ||
| NFC payments | Yes | Yes |
| Wi-Fi | — | Wi-Fi 4 |
| ANT+ sensors | Yes | Yes |
| Smart features | ||
| Music on the watch | Yes | Yes |
| Storage | 0.06 GB | 16 GB |
| Third-party apps | Yes | Yes |
| Platform | ||
| Operating system | Garmin OS | Garmin OS |
| Platform | Proprietary | Proprietary |
| Works with | iOS, Android | iOS, Android |
