Head-to-head · Best Smart Rings

RingConn Gen 2 Air vs Ultrahuman Ring Air

Which is the better buy? Side-by-side on rating, price, strengths, and watch-outs — with the published ratings we averaged to get there.

Verdict is reader-supported. As an Amazon Associate we earn from qualifying purchases. Some links on this page are affiliate links — if you click through and buy, we may earn a small commission at no extra cost to you. Our ratings are sourced from independent publications, not sponsors.

The short answer

RingConn Gen 2 Air comes out ahead by a narrow margin (4.0 vs 3.9). The gap is mostly about budget-conscious buyers seeking basic tracking — read the strengths below before deciding.

Higher ratedRanked #3 in Best Smart Rings

RingConn Gen 2 Air

4.0

7 sources$199as of Aug 1

The RingConn Gen 2 Air keeps the Gen 2's sensor set and drops the price. PCMag's Andrew Gebhart calls it a well-rounded smart ring that does not sacrifice looks, and Tom's Guide says it beats the Oura Ring 4 in three big ways, chiefly price and battery. Heart rate, HRV, SpO2, skin temperature, stress and sleep are all tracked with no subscription. Sleep apnoea detection is gone and the clamshell charging case is now a puck.

Strengths

— Affordable price point compared to premium smart rings like the Oura Ring 4
— Accurate heart rate monitoring during workouts and rest
— Waterproof design allows for swimming and showering

Watch-outs

— Sleep apnoea detection is reserved for the pricier Gen 2
— USB-C charging puck replaces the Gen 2's self-powered clamshell case
— Workout and training tools are thin next to a fitness watch

$199 · Check Price on Amazon Full review →

Ranked #4 in Best Smart Rings

Ultrahuman Ring Air

3.9

6 sources$349as of Aug 1

Lighter than the Oura Ring, the Ultrahuman Ring Air pairs accurate heart rate monitoring with all-day battery life that stretches to 14 days. PCMag's Andrew Gebhart praised the comfort and accuracy, while TechRadar noted it lacks some advanced features competitors offer. The $349 price is steep, but the precision and durability suit serious fitness enthusiasts who care more about data accuracy than app ecosystem integration. Anyone who wants extensive third-party integrations or GPS tracking should consider alternatives.

Strengths

— Lightweight design at just 7.5g, making it more comfortable than the Oura Ring
— Accurate heart rate monitoring with 99% accuracy compared to chest straps
— Waterproof up to 100m for swimming and showering

Watch-outs

— Limited third-party app integration compared to competitors like Oura or Garmin
— No built-in GPS tracking for workouts
— Price point of $299 is higher than many fitness rings on the market

$349 · Buy at ultrahuman.com Full review →

How they stack up

RingConn Gen 2 Air

The RingConn Gen 2 Air offers the most affordable option among the smart rings, but it lacks the advanced features and accuracy of the Oura Ring Gen 4 and Samsung Galaxy Ring. While it matches the Oura Ring 4 in battery life, it falls short in sleep tracking insights and health monitoring precision, making it a basic alternative for budget-conscious buyers.

Ultrahuman Ring Air

The Ultrahuman Ring Air provides the most accurate heart rate monitoring and longest battery life, but it's more expensive than the RingConn Gen 2 Air and lacks third-party app support compared to the Oura Ring Gen 4. While it's lighter than the Oura Ring 4, it doesn't offer the same level of sleep insights or ecosystem integration as the Samsung Galaxy Ring.

Specs side-by-side

Spec	RingConn Gen 2 Air	Ultrahuman Ring Air
Battery	Up to 14 days	Up to 14 days
Waterproof	Yes	100m
Heart Rate	Accurate monitoring	99% accuracy
Smart Features	Basic tracking	—
Display	N/A	N/A
Weight	2.5g	7.5g
Material	—	Titanium alloy

← See the full ranking of best smart rings