Oura
Oura Ring 4
S
Ranked #2 in Fitness Trackers
Backed by 4 cited sources
Covered by 4 outlets
Still the benchmark smart ring: the most comprehensive, detailed and accurate passive health/sleep tracking in the category, in the most comfortable 24/7 form factor. The $5.99/month membership is the one persistent complaint, but no rival matches its insight quality.
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Key features
- ✓ Titanium ring, all-recessed sensors
- ✓ Best-in-class sleep and readiness tracking
- ✓ Up to 8 days battery
- ✓ Sleep apnea / AFib detection features
- ✓ Requires $5.99/mo membership for full data
The sources behind this ranking
4 cited sources cover Oura Ring 4. Here's the stance each one takes.
S 1 A 3
T 
Tom's Guide Rates the Oura Ring 4 the best smart ring for most people, with the most comprehensive, detailed health tracking of any ring tested. S Read → N 
NBC Select Upper range of consumer wearable accuracy for sleep-focused adults; ring form factor most comfortable for all-night wear, but not a full exercise-tracker replacement. A Read → L 
Live Science After four months of testing, says it easily upholds the title of best smart ring on the market. A Read → F 
Forbes Says it earned a permanent spot on the reviewer's finger as a masterful passive health coach, though the subscription remains a bitter pill. A Read →