Nextring N2 vs Oura Ring 4

What N2 does better (1) and where 4 wins (1) — every spec side by side.

Nextring · 2025N2

7.0Score

1 advantage≈ $210

Oura Ring · 20244

8.5Score

1 advantage≈ $220

Higher score

8.8Health tracking4.1

5.2Build & durability7.6

Why is N2 better than 4?

Specifications

Only differences	Nextring N2≈ $2107.0	Oura Ring 4≈ $2208.5
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)	14 days	7 days
Health sensors
Optical heart rate	Yes	Yes
Blood oxygen (SpO2)	Yes	Yes
ECG	—	Yes
Skin temperature	Yes	—
Sensors	heart rate, SpO2, accelerometer	SpO2, accelerometer