Colmi R12 vs IMIKI Smart Ring

What R12 does better (0) and where Smart Ring wins (1) — every spec side by side.

Colmi · 2025R12

3.8Score

0 advantages≈ $35

Higher score

IMIKI · 2025Smart Ring

1 advantage≈ $55

3.8Health tracking7.3

Why is R12 better than Smart Ring?

R12 has no measurable advantages in this pair.

Specifications

Only differences	Colmi R12≈ $353.8	IMIKI Smart Ring≈ $55
Design & durability
Weight	4.7 g	—
Water resistance	1 ATM	5 ATM
Water rating (maker)	1 atm / 10 m	5 atm / 50 m
Colours	Black	Black
Battery
Battery life (smartwatch mode)	5 days	5 days
Health sensors
Optical heart rate	Yes	Yes
Blood oxygen (SpO2)	Yes	Yes
Skin temperature	—	Yes
HRV tracking	—	Yes
Sensors	heart rate, SpO2	heart rate, SpO2