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Why is Series 23 RA23-2170 better than Tank S2?
- Screen size1.83″ vs 1.32″+39%
Why is Tank S2 better than Series 23 RA23-2170?
- Battery life (smartwatch mode)7 days vs 10 days+43%
Specifications
Side by side
| Design & durability | ||
| Weight | 38 g | — |
| Thickness | 23 mm | — |
| Lens / cover glass | — | Gorilla Glas |
| Strap material | Silikon | Silikon |
| Water resistance | — | 5 ATM |
| Water rating (maker) | — | 50 m / 5 bar / 5 ATM |
| Military-grade (MIL-STD-810) | — | Yes |
| Colours | Black | — |
| Display | ||
| Screen size | 1.83″ | 1.32″ |
| Display technology | — | AMOLED |
| Panel | — | AMOLED |
| AMOLED / OLED display | — | Yes |
| Always-on display | — | Yes |
| Resolution (width) | — | 466 px |
| Resolution (height) | — | 466 px |
| Battery | ||
| Battery life (smartwatch mode) | 7 days | 10 days |
| Battery capacity | — | 390 mAh |
| Battery type | Li-Ion | — |
| Health sensors | ||
| Optical heart rate | Yes | Yes |
| Blood oxygen (SpO2) | — | Yes |
| Sleep tracking | — | Yes |
| Sensors | — | heart rate, SpO2 |
| Sports & navigation | ||
| Built-in GPS | Yes | — |
| Satellite systems | GPS | — |
| Connectivity | ||
| Bluetooth | 5.2 | 5.3 |
| Platform | ||
| Works with | iOS, Android | iOS, Android |
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