MYnextRING Sky vs Oura Ring 4 Ceramic

What Sky does better (0) and where 4 Ceramic wins (2) — every spec side by side.

MYnextRING · 2026Sky

6.2Score

0 advantages≈ $300

Oura Ring · 20254 Ceramic

8.5Score

2 advantages≈ $250

Higher score

4.1Health tracking4.1

5.2Build & durability7.6

Why is Sky better than 4 Ceramic?

Sky has no measurable advantages in this pair.

Specifications

Only differences	MYnextRING Sky≈ $3006.2	Oura Ring 4 Ceramic≈ $2508.5
Design & durability
Weight	3 g	3 g
Water resistance	5 ATM	10 ATM
Water rating (maker)	5 atm / 50 m	10 atm / 100 m
Battery
Battery life (smartwatch mode)	7 days	8 days
Health sensors
Optical heart rate	Yes	Yes
Blood oxygen (SpO2)	Yes	Yes
ECG	—	Yes
HRV tracking	Yes	—
Sensors	heart rate, SpO2, accelerometer	SpO2, accelerometer