vs
5.0Display3.5
2.0Battery life4.8
Dimensions
Size comparison
Griffed Gen 6Forerunner 255
| Griffed Gen 6 | Forerunner 255 | Difference | |
|---|---|---|---|
| Case size | 45.5 mm | 45.6 mm | −0.1 mm |
Drawn to the same scale from the official dimensions (front and side).
Why is Griffed Gen 6 better than Forerunner 255?
- AMOLED / OLED displayYes · Forerunner 255: No
- Storage8 GB vs 4 GB2×
- Resolution (width)416 px vs 260 px+60%
Why is Forerunner 255 better than Griffed Gen 6?
- Battery life (smartwatch mode)1 days vs 14 days14×
- Water resistance3 ATM vs 5 ATM+67%
Specifications
Side by side
| Design & durability | ||
| Case size | 46 mm | 46 mm |
| Weight | — | 49 g |
| Thickness | — | 12.9 mm |
| Height | — | 45.6 mm |
| Width | — | 45.6 mm |
| Case material | Stainless steel | Plastic / polymer |
| Sapphire crystal | — | No |
| Lens / cover glass | Mineralglas | Corning® Gorilla® Glass 3 |
| Strap material | — | silicone |
| Water resistance | 3 ATM | 5 ATM |
| Water rating (maker) | 3 ATM | 5 ATM |
| Display | ||
| Screen size | 1.28″ | 1.3″ |
| Display technology | AMOLED | Memory-in-pixel (transflective) |
| Panel | AMOLED | Sunlight-visible, transflective memory-in-pixel |
| AMOLED / OLED display | Yes | No |
| Always-on display | Yes | Yes |
| Resolution (width) | 416 px | 260 px |
| Resolution (height) | 416 px | 260 px |
| Pixel density | — | 200 ppi |
| Battery | ||
| Battery life (smartwatch mode) | 1 days | 14 days |
| GPS battery life | — | 30 h |
| GPS battery life (dual-band) | — | 16 h |
| Battery life (hours) | 24 h | — |
| Battery type | Li-Ion | Lithium ion |
| Wireless charging | — | No |
| Charging | — | Garmin proprietary plug charger |
| Health sensors | ||
| Optical heart rate | Yes | Yes |
| Blood oxygen (SpO2) | — | Yes |
| Temperature sensor | — | Yes |
| HRV tracking | — | Yes |
| Sleep tracking | — | Yes |
| Sensors | accelerometer, ambient light | GPS, GLONASS, Galileo, QZSS, BeiDou, SatIQ technology, Elevate wrist heart rate monitor, Pulse Ox blood oxygen saturation monitor, Barometric altimeter, Compass, Gyroscope, Accelerometer, Thermometer |
| Sports & navigation | ||
| Built-in GPS | Yes | Yes |
| Dual-band GPS | — | Yes |
| Satellite systems | GPS | GLONASS, GALILEO, BDS, QZSS |
| Barometric altimeter | — | Yes |
| Compass | — | Yes |
| Multisport / triathlon mode | — | Yes |
| Sport profiles | — | 58 |
| Connectivity | ||
| NFC payments | Yes | Yes |
| Bluetooth | 5 | — |
| ANT+ sensors | — | Yes |
| Smart features | ||
| Music on the watch | Yes | — |
| Storage | 8 GB | 4 GB |
| RAM | 1 GB | — |
| Third-party apps | — | Yes |
| Platform | ||
| Operating system | Wear OS by Google | Garmin OS |
| Platform | Wear OS | Proprietary |
| Works with | — | iOS, Android |
| Chipset | Qualcomm Snapdragon Wear 4100+ | — |
