Nextring N1X Ultra vs Oura Ring 4 Ceramic

What N1X Ultra does better (1) and where 4 Ceramic wins (2) — every spec side by side.

Nextring · 2025N1X Ultra

5.0Score

1 advantage≈ $240

Oura Ring · 20254 Ceramic

8.5Score

2 advantages≈ $250

Higher score

8.8Health tracking4.1

3.5Build & durability7.6

Why is N1X Ultra better than 4 Ceramic?

Specifications

Only differences	Nextring N1X Ultra≈ $2405.0	Oura Ring 4 Ceramic≈ $2508.5
Design & durability
Weight	4 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)	10 days	8 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