vs
8.7Display9.8
5.0Health tracking5.0
Why is smart 2.0 1.78 better than BT20?
smart 2.0 1.78 has no measurable advantages in this pair.
Why is BT20 better than smart 2.0 1.78?
- Screen size1.7″ vs 1.96″+15%
Specifications
Side by side
| Design & durability | ||
| Case material | Stainless steel | — |
| Lens / cover glass | Mineralglas Mineralglas | — |
| Water resistance | 5 ATM | 5 ATM |
| Ingress protection | — | IP68 |
| Water resistance (IPx) | — | IPx8 |
| Water rating (maker) | 50 m / 5 bar / 5 ATM | — |
| Military-grade (MIL-STD-810) | — | Yes |
| Colours | — | Black |
| Display | ||
| Screen size | 1.7″ | 1.96″ |
| Display technology | AMOLED | AMOLED |
| Panel | AMOLED | AMOLED |
| AMOLED / OLED display | Yes | Yes |
| Resolution (width) | — | 410 px |
| Resolution (height) | — | 502 px |
| Pixel density | — | 331 ppi |
| Refresh rate | — | 60 Hz |
| Battery | ||
| Battery capacity | — | 350 mAh |
| Battery type | — | Li-Ion |
| Health sensors | ||
| Optical heart rate | Yes | Yes |
| Blood oxygen (SpO2) | Yes | Yes |
| ECG | Yes | — |
| Sleep tracking | Yes | — |
| Sensors | heart rate, SpO2, accelerometer | Accelerometer, heart rate, SpO2 |
| Sports & navigation | ||
| Built-in GPS | — | No |
| Connectivity | ||
| NFC payments | — | No |
| LTE (cellular) | — | No |
| eSIM | — | No |
| Bluetooth | 5 | 5.2 |
| Smart features | ||
| Speaker | — | Yes |
| Platform | ||
| Operating system | — | Proprietary OS |
| Platform | — | Proprietary |
| Works with | iOS, Android | — |
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