Luna Ring 2.0 vs MYnextRING Sky

What Ring 2.0 does better (0) and where Sky wins (1) — every spec side by side.

Luna · 2026Ring 2.0

0 advantages≈ $320

MYnextRING · 2026Sky

6.2Score

1 advantage≈ $300

Higher score

9.6Health tracking4.1

Why is Ring 2.0 better than Sky?

Ring 2.0 has no measurable advantages in this pair.

Specifications

Only differences	Luna Ring 2.0≈ $320	MYnextRING Sky≈ $3006.2
Design & durability
Weight	—	3 g
Water resistance	5 ATM	5 ATM
Water rating (maker)	5 atm / 50 m	5 atm / 50 m
Battery
Battery life (smartwatch mode)	6 days	7 days
Health sensors
Optical heart rate	Yes	Yes
Blood oxygen (SpO2)	—	Yes
Skin temperature	Yes	—
HRV tracking	Yes	Yes
Sensors	heart rate, accelerometer	heart rate, SpO2, accelerometer