Kospet Tank M3 vs Kospet Tank M4

What Tank M3 does better (0) and where Tank M4 wins (1) — every spec side by side.

Kospet · 2024Tank M3

6.7Score

0 advantages≈ $95

Kospet · 2026Tank M4

9.7Score

1 advantage≈ $190

Higher score

9.7Display9.7

4.9Health tracking4.9

3.3Build & durability9.3

Why is Tank M3 better than Tank M4?

Tank M3 has no measurable advantages in this pair.

Specifications

Only differences	Kospet Tank M3≈ $956.7	Kospet Tank M4≈ $1909.7
Design & durability
Weight	60 g	60 g
Lens / cover glass	Gorilla Glas	Gorilla Glas
Water resistance	5 ATM	10 ATM
Water rating (maker)	50 m / 5 bar / 5 ATM	100 m / 10 bar / 10 ATM
Display
Screen size	1.96″	1.96″
Display technology	AMOLED	AMOLED
Panel	AMOLED	AMOLED
AMOLED / OLED display	Yes	Yes
Resolution (width)	410 px	410 px
Resolution (height)	502 px	502 px
Battery
Battery life (smartwatch mode)	10 days	10 days
Health sensors
Optical heart rate	Yes	Yes
Blood oxygen (SpO2)	Yes	Yes
ECG	Yes	Yes
Sleep tracking	—	Yes
Sensors	heart rate, SpO2	heart rate, SpO2
Sports & navigation
Built-in GPS	Yes	Yes
Satellite systems	GPS	GPS
Connectivity
Bluetooth	5.3	5.3
Platform
Works with	iOS, Android	iOS, Android