vs
2.2Display2.3
3.7Battery life3.2
4.9Health tracking2.1
5.0Sports & outdoor2.2
3.5Build & durability4.4
Dimensions
Size comparison
Forerunner 255S MusicPacer Pro
| Forerunner 255S Music | Pacer Pro | Difference | |
|---|---|---|---|
| Height | 41 mm | 45 mm | −4 mm |
| Width | 41 mm | 45 mm | −4 mm |
| Thickness | 12.4 mm | 11.5 mm | +0.9 mm |
| Weight | 39 g | 41 g | −2 g |
Drawn to the same scale from the official dimensions (front and side).
Why is Forerunner 255S Music better than Pacer Pro?
- Battery life (smartwatch mode)12 days vs 6.5 days+85%
- Weight39 g vs 41 g+5%
Why is Pacer Pro better than Forerunner 255S Music?
- GPS battery life26 h vs 30 h+15%
- Screen size1.1″ vs 1.2″+9%
- Resolution (width)218 px vs 240 px+10%
- Thickness12.4 mm vs 11.5 mm+8%
Specifications
Side by side
| Design & durability | ||
| Case size | 41 mm | 45 mm |
| Weight | 39 g | 41 g |
| Thickness | 12.4 mm | 11.5 mm |
| Height | 41 mm | 45 mm |
| Width | 41 mm | 45 mm |
| Case material | Plastic / polymer | Aluminium |
| Sapphire crystal | No | — |
| Lens / cover glass | Corning® Gorilla® Glass 3 | — |
| Strap material | silicone | — |
| Water resistance | 5 ATM | 5 ATM |
| Water rating (maker) | 5 ATM | WR50 |
| Military-grade (MIL-STD-810) | — | Yes |
| Colours | — | Snow White, Carbon Gray, Gold Dust |
| Display | ||
| Screen size | 1.1″ | 1.2″ |
| Display technology | Memory-in-pixel (transflective) | Memory-in-pixel (transflective) |
| Panel | Sunlight-visible, transflective memory-in-pixel | MIP |
| AMOLED / OLED display | No | No |
| Always-on display | Yes | Yes |
| Touchscreen | — | No |
| Resolution (width) | 218 px | 240 px |
| Resolution (height) | 218 px | 240 px |
| Pixel density | 198 ppi | 200 ppi |
| Battery | ||
| Battery life (smartwatch mode) | 12 days | 6.5 days |
| GPS battery life | 26 h | 30 h |
| GPS battery life (dual-band) | 13 h | — |
| Battery capacity | — | 265 mAh |
| Battery type | Lithium ion | Li-Pol |
| Wireless charging | No | — |
| Charging | Garmin proprietary plug charger | — |
| Health sensors | ||
| Optical heart rate | Yes | Yes |
| Blood oxygen (SpO2) | Yes | — |
| Skin temperature | — | No |
| Temperature sensor | Yes | — |
| HRV tracking | Yes | Yes |
| Sleep tracking | Yes | Yes |
| Sensors | GPS, GLONASS, Galileo, QZSS, BeiDou, SatIQ technology, Elevate wrist heart rate monitor, Pulse Ox blood oxygen saturation monitor, Barometric altimeter, Compass, Gyroscope, Accelerometer, Thermometer | Barometer, Magnetometer compass, Accelerometer |
| Sports & navigation | ||
| Built-in GPS | Yes | Yes |
| Dual-band GPS | Yes | — |
| Satellite systems | GLONASS, GALILEO, BDS, QZSS | — |
| Offline maps | — | No |
| Barometric altimeter | Yes | Yes |
| Compass | Yes | Yes |
| Multisport / triathlon mode | Yes | — |
| Sport profiles | 58 | — |
| LED flashlight | — | No |
| Connectivity | ||
| NFC payments | Yes | — |
| Wi-Fi | Wi-Fi 4 | — |
| Bluetooth | — | 5.1 |
| ANT+ sensors | Yes | — |
| Smart features | ||
| Music on the watch | Yes | — |
| Storage | 4 GB | — |
| Third-party apps | Yes | — |
| Platform | ||
| Operating system | Garmin OS | Polar OS |
| Platform | Proprietary | Proprietary |
| Works with | iOS, Android | — |
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