Colmi R03 vs Colmi R06

What R03 does better (0) and where R06 wins (1) — every spec side by side.

Colmi · 2024R03

4.5Score

0 advantages≈ $30

Colmi · 2024R06

7.4Score

1 advantage≈ $30

Higher score

4.1Health tracking4.1

3.1Build & durability6.3

Why is R03 better than R06?

R03 has no measurable advantages in this pair.

Specifications

Only differences	Colmi R03≈ $304.5	Colmi R06≈ $307.4
Design & durability
Weight	4.7 g	2.7 g
Water resistance	5 ATM	5 ATM
Water rating (maker)	5 atm / 50 m	5 atm / 50 m
Battery
Battery life (smartwatch mode)	7 days	7 days
Health sensors
Optical heart rate	Yes	Yes
Blood oxygen (SpO2)	Yes	Yes
ECG	—	Yes
Sensors	heart rate, SpO2, accelerometer	heart rate, SpO2, accelerometer