vs
8.1Display9.2
5.0Health tracking5.0
4.9Smart features9.0
Dimensions
Size comparison
Watch Buds 2Watch Ultra
| Watch Buds 2 | Watch Ultra | Difference | |
|---|---|---|---|
| Height | 47 mm | 46.3 mm | +0.7 mm |
| Width | 47 mm | 46.3 mm | +0.7 mm |
| Thickness | 14.7 mm | 12.1 mm | +2.6 mm |
| Weight | 54 g | 51 g | +4 g |
Drawn to the same scale from the official dimensions (front and side).
Why is Watch Buds 2 better than Watch Ultra?
- Peak brightness3,000 nits vs 2,700 nits+11%
Why is Watch Ultra better than Watch Buds 2?
- LTE (cellular)No · Watch Buds 2: Yes
- eSIMNo · Watch Buds 2: Yes
- SpeakerNo · Watch Buds 2: Yes
- Weight54.5 g vs 51 g+7%
- Pixel density310 ppi vs 439 ppi+42%
- Battery capacity410 mAh vs 550 mAh+34%
- Thickness14.7 mm vs 12.1 mm+21%
Specifications
Side by side
| Design & durability | ||
| Case size | 47 mm | 46 mm |
| Weight | 54.5 g | 51 g |
| Thickness | 14.7 mm | 12.1 mm |
| Height | 47 mm | 46.3 mm |
| Width | 47 mm | 46.3 mm |
| Lens / cover glass | — | Corning Gorilla Glass 3 |
| Water resistance | — | 5 ATM |
| Ingress protection | — | IP68 |
| Water resistance (IPx) | — | IPx8 |
| Colours | Black, Silver | Black, Silver |
| Display | ||
| Screen size | 1.5″ | 1.5″ |
| Display technology | AMOLED | OLED |
| Panel | LTPO AMOLED | LTPO pOLED |
| AMOLED / OLED display | Yes | Yes |
| Resolution (width) | 466 px | 466 px |
| Resolution (height) | 466 px | 466 px |
| Pixel density | 310 ppi | 439 ppi |
| Peak brightness | 3,000 nits | 2,700 nits |
| LTPO display | Yes | Yes |
| Refresh rate | 60 Hz | 60 Hz |
| Battery | ||
| Battery capacity | 410 mAh | 550 mAh |
| Battery type | Li-Ion | — |
| Wireless charging | Yes | — |
| Health sensors | ||
| Optical heart rate | Yes | Yes |
| Blood oxygen (SpO2) | Yes | Yes |
| Sensors | Accelerometer, gyro, heart rate, SpO2 | Accelerometer, gyro, heart rate, compass, barometer, SpO2 |
| Sports & navigation | ||
| Built-in GPS | Yes | Yes |
| Dual-band GPS | — | Yes |
| Satellite systems | GLONASS, GALILEO, BDS | — |
| Barometric altimeter | — | Yes |
| Compass | — | Yes |
| Connectivity | ||
| NFC payments | Yes | Yes |
| LTE (cellular) | No | Yes |
| eSIM | No | Yes |
| Wi-Fi | — | Wi-Fi 4 |
| Bluetooth | 5.2 | 5.3 |
| Smart features | ||
| Speaker | No | Yes |
| Storage | — | 32 GB |
| RAM | — | 2 GB |
| Platform | ||
| Operating system | HarmonyOS | Android Wear OS 6 |
| Platform | HarmonyOS | Android |
| Chipset | — | Qualcomm Snapdragon W5+ Gen 1 |
