vs
8.7Display8.2
4.9Health tracking4.9
9.4Sports & outdoor8.0
5.2Smart features4.9
Dimensions
Size comparison
Balance UltraWatch Buds 2
| Balance Ultra | Watch Buds 2 | Difference | |
|---|---|---|---|
| Height | 51.8 mm | 47 mm | +4.8 mm |
| Width | 51.8 mm | 47 mm | +4.8 mm |
| Thickness | 13.4 mm | 14.7 mm | −1.3 mm |
| Weight | 57 g | 54 g | +2 g |
Drawn to the same scale from the official dimensions (front and side).
Why is Balance Ultra better than Watch Buds 2?
- Battery life (smartwatch mode)30 days vs 3 days10×
- SpeakerYes · Watch Buds 2: No
- Battery capacity780 mAh vs 410 mAh+90%
- Thickness13.4 mm vs 14.7 mm+10%
- Pixel density323 ppi vs 310 ppi+4%
- Resolution (width)480 px vs 466 px+3%
Why is Watch Buds 2 better than Balance Ultra?
- Weight57 g vs 54.5 g+5%
Specifications
Side by side
| Design & durability | ||
| Case size | 49 mm | 47 mm |
| Weight | 57 g | 54.5 g |
| Thickness | 13.4 mm | 14.7 mm |
| Height | 51.8 mm | 47 mm |
| Width | 51.8 mm | 47 mm |
| Case material | Titanium | Titanium |
| Sapphire crystal | Yes | — |
| Lens / cover glass | Sapphire glass | — |
| Strap material | — | Leder |
| Water resistance | 10 ATM | — |
| Military-grade (MIL-STD-810) | Yes | — |
| Colours | — | Black, Silver |
| Display | ||
| Screen size | 1.5″ | 1.5″ |
| Display technology | AMOLED | AMOLED |
| Panel | AMOLED | LTPO AMOLED |
| AMOLED / OLED display | Yes | Yes |
| Touchscreen | Yes | — |
| Resolution (width) | 480 px | 466 px |
| Resolution (height) | 480 px | 466 px |
| Pixel density | 323 ppi | 310 ppi |
| Peak brightness | 3,000 nits | 3,000 nits |
| LTPO display | — | Yes |
| Refresh rate | — | 60 Hz |
| Battery | ||
| Battery life (smartwatch mode) | 30 days | 3 days |
| GPS battery life (dual-band) | 50 h | — |
| Battery capacity | 780 mAh | 410 mAh |
| Battery type | — | Li-Ion |
| Wireless charging | — | Yes |
| Health sensors | ||
| Optical heart rate | Yes | Yes |
| Blood oxygen (SpO2) | Yes | Yes |
| Temperature sensor | Yes | — |
| Sleep tracking | Yes | — |
| Sensors | — | Accelerometer, gyro, heart rate, SpO2 |
| Sports & navigation | ||
| Built-in GPS | Yes | Yes |
| Dual-band GPS | Yes | — |
| Satellite systems | — | GLONASS, GALILEO, BDS |
| Barometric altimeter | Yes | Yes |
| Compass | Yes | Yes |
| Sport profiles | 180 | — |
| LED flashlight | Yes | — |
| Connectivity | ||
| NFC payments | — | Yes |
| LTE (cellular) | — | No |
| eSIM | — | No |
| Wi-Fi | Wi-Fi 4 | — |
| Bluetooth | 5.2 | 5.2 |
| Smart features | ||
| Calls from the wrist | Yes | — |
| Speaker | Yes | No |
| Microphone | Yes | — |
| Voice assistant | Yes | — |
| Music on the watch | Yes | — |
| Storage | 64 GB | — |
| Platform | ||
| Operating system | Zepp OS | HarmonyOS |
| Platform | Proprietary | HarmonyOS |
| Works with | Android, iOS | iOS, Android |
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