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.

8.8Score

1 advantage≈ $270

Kospet · 2026Tank T4

9.4Score

0 advantages≈ $180

Higher score

8.6Display9.1

4.9Health tracking4.9

Why is PRO 4 Ultra Smartwatch silber, Silikonband schwarz, Anruf & SOS better than Tank T4?

Tank T4 has no measurable advantages in this pair.

Specifications

Only differences	Knauermann PRO 4 Ultra Smartwatch silber, Silikonband schwarz, Anruf & SOS≈ $2708.8	Kospet Tank T4≈ $1809.4
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