Knauermann PRO 4 Ultra Smartwatch silber, Silikonband schwarz, Anruf & SOS vs Kospet Tank T4
What PRO 4 Ultra Smartwatch silber, Silikonband schwarz, Anruf & SOS does better (1) and where Tank T4 wins (0) — every spec side by side.
Knauermann · 2026PRO 4 Ultra Smartwatch silber, Silikonband schwarz, Anruf & SOS
8.8Score
1 advantage≈ $270
vs
8.6Display9.0
4.9Health tracking4.9
Why is PRO 4 Ultra Smartwatch silber, Silikonband schwarz, Anruf & SOS better than Tank T4?
- Screen size1.95″ vs 1.43″+36%
Why is Tank T4 better than PRO 4 Ultra Smartwatch silber, Silikonband schwarz, Anruf & SOS?
Tank T4 has no measurable advantages in this pair.
Specifications
Side by side
| Design & durability | ||
| Case size | 24 mm | — |
| Weight | — | 71 g |
| Case material | — | Stainless steel |
| Lens / cover glass | — | Gorilla Glas |
| Strap material | Silikon | Silikon |
| Water resistance | — | 10 ATM |
| Water rating (maker) | — | 100 m / 10 bar / 10 ATM |
| Colours | Silver, Black | Anthracite |
| Display | ||
| Screen size | 1.95″ | 1.43″ |
| Display technology | AMOLED | AMOLED |
| Panel | AMOLED | AMOLED |
| AMOLED / OLED display | Yes | Yes |
| Always-on display | Yes | — |
| Resolution (width) | — | 466 px |
| Resolution (height) | — | 466 px |
| Battery | ||
| Battery life (smartwatch mode) | — | 15 days |
| Battery capacity | — | 500 mAh |
| Health sensors | ||
| Optical heart rate | Yes | Yes |
| Blood oxygen (SpO2) | Yes | Yes |
| ECG | — | Yes |
| Sleep tracking | — | Yes |
| Sensors | heart rate, SpO2 | heart rate, SpO2, accelerometer |
| Sports & navigation | ||
| Built-in GPS | Yes | — |
| Satellite systems | GPS | — |
| Connectivity | ||
| Bluetooth | — | 5 |
| Platform | ||
| Works with | iOS, Android | iOS, Android |
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