vs
2.1Display9.3
3.9Smart features5.4
Why is U2 better than Watch GT Runner 2?
U2 has no measurable advantages in this pair.
Why is Watch GT Runner 2 better than U2?
- Built-in GPSNo · U2: Yes
- AMOLED / OLED displayNo · U2: Yes
- NFC paymentsNo · U2: Yes
- Battery capacity220 mAh vs 540 mAh2.5×
- Resolution (width)240 px vs 466 px+94%
- Screen size1.26″ vs 1.32″+5%
- Pixel density269 ppi vs 352 ppi+31%
- Water resistance (IPx)IPx8 vs IPx9+12%
Specifications
Side by side
| Design & durability | ||
| Case size | — | 44 mm |
| Weight | — | 34.5 g |
| Thickness | — | 10.7 mm |
| Height | — | 43.5 mm |
| Width | — | 43.5 mm |
| Lens / cover glass | — | Kunlun Crystal |
| Water resistance | — | 5 ATM |
| Ingress protection | IP68 | IP69 |
| Water resistance (IPx) | IPx8 | IPx9 |
| Colours | Black, Silver, Pink | Dusk Blue, Dawn Orange, Midnight Black |
| Display | ||
| Screen size | 1.26″ | 1.32″ |
| Display technology | LCD | AMOLED |
| Panel | TFT | AMOLED |
| AMOLED / OLED display | No | Yes |
| Resolution (width) | 240 px | 466 px |
| Resolution (height) | 240 px | 466 px |
| Pixel density | 269 ppi | 352 ppi |
| Peak brightness | — | 3,000 nits |
| Refresh rate | 60 Hz | 60 Hz |
| Battery | ||
| Battery life (smartwatch mode) | — | 14 days |
| Battery capacity | 220 mAh | 540 mAh |
| Battery type | — | Si/C |
| Wireless charging | — | Yes |
| Health sensors | ||
| Optical heart rate | Yes | Yes |
| Blood oxygen (SpO2) | — | Yes |
| ECG | — | Yes |
| Temperature sensor | — | Yes |
| Sleep tracking | — | Yes |
| Sensors | Accelerometer, heart rate | Accelerometer, gyro, heart rate, SpO2, compass, barometer, depth, temperature |
| Sports & navigation | ||
| Built-in GPS | No | Yes |
| Dual-band GPS | — | Yes |
| Satellite systems | — | GLONASS, GALILEO, BDS, QZSS, NavIC |
| Barometric altimeter | — | Yes |
| Compass | — | Yes |
| Connectivity | ||
| NFC payments | No | Yes |
| LTE (cellular) | No | No |
| eSIM | No | No |
| Bluetooth | 5.4 | 6 |
| Smart features | ||
| Calls from the wrist | — | Yes |
| Speaker | Yes | Yes |
| Music on the watch | — | Yes |
| Platform | ||
| Operating system | Proprietary OS | — |
| Platform | Proprietary | — |
| Works with | — | Android, iOS |
