Oura Ring 4 vs Oura Ring 5

What 4 does better (0) and where 5 wins (2) — every spec side by side.

Oura Ring · 20244

8.2Score

0 advantages≈ $210

Oura Ring · 20265

8.9Score

2 advantages≈ $430

Higher score

3.8Health tracking3.8

7.2Build & durability8.8

Why is 4 better than 5?

4 has no measurable advantages in this pair.

Specifications

Only differences	Oura Ring 4≈ $2108.2	Oura Ring 5≈ $4308.9
Design & durability
Weight	3 g	2.5 g
Water resistance	10 ATM	10 ATM
Water rating (maker)	10 atm / 100 m	10 atm / 100 m
Battery
Battery life (smartwatch mode)	7 days	9 days
Health sensors
Optical heart rate	Yes	Yes
Blood oxygen (SpO2)	Yes	Yes
ECG	Yes	Yes
Sensors	SpO2, accelerometer	SpO2, accelerometer