OuravsOura
Oura Ring 4 vs Oura Ring 5: comparison
Oura Ring 4 vs Oura Ring 5 using the data from our reviews: score, who each one is for, and their strengths and weaknesses.
Summary of both reviews
| Oura Ring 4 | Oura Ring 5 | |
|---|---|---|
| Our score | 82/100 | 83/100 |
| Who it is for | Anyone who wants to track sleep, HRV and temperature without wearing anything on the wrist at night, accepts the monthly fee and doesn't need the Ring 5's slimmer design. | Anyone who wants to track sleep and recovery with a ring you barely notice, does not use Samsung as their ecosystem and accepts paying a monthly fee for the app. |
| Skip it if | You lift weights with barbells and dumbbells, play contact sports or don't want a monthly fee. | You do barbell strength training or need reliable heart rate during workouts, or you do not want to pay a fee to see your own data. |
| Check price | Check price on Amazon | Check price on Amazon |
Each score comes from its full review, with its sources and criteria. The two scores are only comparable within the same type of product.
Oura Ring 4
Pros
- • Sleep tracking backed by studies against polysomnography, but carried out with earlier generations (Gen2 and Gen3): none of them validates the Ring 4 directly.
- • Titanium body 2.88 mm thick and 3.3 to 5.2 g depending on size, with no screen or vibrations: very unobtrusive for sleeping.
- • Typical battery life of 5 to 8 days according to the manufacturer, with 100 m water resistance.
Cons
- • The full app requires a membership: without it you only see three daily scores, the battery level and little else.
- • Titanium that scratches easily and a poor companion for strength training; according to specialist reviews, scratches are not covered by the warranty.
- • Workout tracking is less reliable than a sports watch, and some users report batteries that degrade over the months.
Oura Ring 5
Pros
- • More discreet than the Ring 4: 6.09 mm wide, 2.28 mm thick and from 2 g according to Oura, versus the Ring 4’s 7.9 mm and about 2.88 mm; several reviews agree it is less noticeable.
- • Official battery life of 6 to 9 days; in the attributed review tests, between roughly a week and a little over seven days in a size 11.
- • IP68 water resistance down to 100 m and six finishes, all titanium.
Cons
- • No published independent validation of the Ring 5: the accuracy improvements (12% more accuracy in overnight HRV, according to Oura) are the company’s own figures with no methodology.
- • The full app requires a membership: without it you only see three scores, the battery and little else, and the fee cannot be paused.
- • Fewer sizes than the Ring 4 (6 to 13, versus 4 to 15) and different sizing: the Ring 4 kit does not work.
Oura Ring 4
Oura Ring 4: what it measures, what validation it has, battery life, what you lose without the subscription and whether it holds up against the new Ring 5.
Oura Ring 5
Oura Ring 5: what it measures, what changes from the Ring 4, how long the battery lasts, what validation it has and what the subscription costs to keep.