Fitness rings comparison · Maker specs
RingConn Gen 2 Air vs RingConn Gen 3
Quick Answer
Get RingConn Gen 2 Air for $199 if sleep stages and round-the-clock vitals are enough and you can find one in stock. Spend the extra on RingConn Gen 3, from $349, for vibration health alerts, an apnea pattern, vascular trends or size 15. RingConn listed Air as sold out on 19 September 2026, and neither ring has a subscription.
The verdict
Buy RingConn Gen 3 for the motor, the apnea pattern and size 15; settle for RingConn Gen 2 Air only if $199 is your ceiling and RingConn restocks it.
Why: Both are subscription-free, and both track heart rate, HRV, blood oxygen and skin temperature around the clock. Gen 3 adds what Air leaves out: a motor for health alerts, an apnea pattern and vascular trends. It also keeps 10 days of data on the ring to Air's 5 to 7, and RingConn rates it for 10 to 14 days to Air's 10.
Buy RingConn Gen 2 Air if
You want RingConn's app and all-day vitals for the least money, sleep stages are all the sleep data you need, and you can find one in stock.
Buy RingConn Gen 3 if
You'd like the ring to tap you with health alerts, you want apnea or vascular trends, you wear a size 15, or you need a ring RingConn can ship now.
Gen 3 is the newer and pricier ring, but Gen 2 Air is the thinner one: 2.0 millimeters against 2.3. What you pay extra for on Gen 3 sits inside the band.
Air and Gen 3, spec by spec
| Spec | RingConn Gen 2 Air | RingConn Gen 3 |
|---|---|---|
| Price, 19 September 2026 | $199.00, out of stock | From $349, on sale |
| Vibration alerts | No | Health alerts and reminders |
| Sleep apnea | No | Apnea pattern, as a risk indicator |
| Vascular trends | No | Yes |
| Sizes | 6–14, Gen 2 sizing kit | 6–15, Gen 3 sizing kit |
| Battery | Up to 10 days | 10–12 days with vibration on, 11–14 off |
| Charger in the box | Wired dock for every size; about 90 minutes | Wireless case; about 120 minutes to fill the case |
| Data kept on the ring | 5–7 days (7 on RingConn’s comparison chart) | 10 days |
| Thickness | 2.0 mm | 2.3 mm |
| Width | 6.8 mm | Not published |
| Weight | 2.5–4 g | 2.5–3.5 g |
| Shell | Titanium steel, PVD, medical-grade epoxy | Metallic titanium, medical-grade epoxy, PVD |
| Water | IP68, 100 m (328 ft) | IP68 and ATM10, 100 m (328 ft) |
| Bluetooth | 5.0 | Version not published |
| Phone | iOS 17.0+, Android 10.0+ | iOS 17.0+, Android 10.0+ |
| Subscription | None | None |
What the extra money buys on Gen 3
Gen 3 costs a hundred and fifty dollars or more over Air, and most of the difference is features rather than materials:
- A vibration motor that taps you with health alerts and reminders. RingConn keeps it away from messages and alarms.
- An apnea pattern. Gen 3 flags sleep-apnea risk indicators; Air tracks sleep stages and stops there.
- Vascular trends, which combine nighttime patterns, habits and anything you log by hand. They’re trends, not blood-pressure readings, and neither ring stands in for a cuff.
- Size 15. Air stops at 14.
Gen 3’s sensors are an optical heart-rate sensor, a temperature sensor, a 3-axis accelerometer and the motor. RingConn is explicit that Gen 3 is not a medical device, so the apnea pattern and the vascular trends are wellness readings rather than clinic results.
Battery, storage and the charger
Air is rated for up to 10 days, depending on your size, and its magnetic dock charges it in about 90 minutes. The dock is wired and fits every Air size; it comes with a USB-C cable and manuals.
Gen 3’s rating depends on that motor: 10 to 12 days with vibration on, 11 to 14 with it off, so RingConn’s “up to 14 days” assumes alerts are off. Its wireless case takes about 120 minutes to fill, and RingConn doesn’t say how long the ring alone needs. That case will charge any RingConn ring, and in the other direction a Gen 2 case can charge Gen 3 when the size matches.
Gen 3 also stores more when it can’t reach your phone: 10 days, against 5 to 7 for Air, which RingConn’s comparison chart rounds up to 7.
Air is thinner, but not always lighter
Air’s band is 6.8 millimeters wide. Weight is closer than the thickness suggests: Air weighs 2.5 to 4 grams depending on size (the marketing uses the 2.5-gram end), while Gen 3 weighs 2.5 to 3.5. At the top of its range, the thinner ring is the heavier one.
The metals differ as well. Gen 3’s shell is metallic titanium under medical-grade epoxy and PVD. Air’s is harder to pin down: RingConn’s specifications call it titanium steels, finished with PVD and medical-grade epoxy; its FAQ says titanium steel; its comparison chart says stainless steel and epoxy. All three are steel, so if you want plain titanium, it’s Gen 3.
Gen 3’s finishes are Polished, Brushed and Matte. Air’s colorways were shown on a page that was out of stock, so see what’s actually available.
Sizes don’t carry over
Air uses Gen 2’s sizing kit and runs from 6 to 14. Gen 3 has its own kit and goes up to 15, and being a 10 in Air doesn’t make you a 10 in Gen 3. Moving up means a new size and a new charger, though not a subscription.
What both rings track
Both keep 24/7 tabs on heart rate, heart-rate variability and blood oxygen, both log skin temperature, steps, calories and workouts, and RingConn marks VO2 Max for both. Gen 3 also tracks respiratory rate: around the clock according to its FAQ, at night according to RingConn’s comparison chart. Neither has GPS.
Both run the RingConn app on iOS 17 or later and Android 10 or later; Air also wants Bluetooth 4.0 or later on the phone and has a Bluetooth 5.0 radio. Air’s app pairs one ring at a time, while Gen 3 carries your history over to a new ring on the same account. Water ratings match at IP68 and 100 meters, or 328 feet, with ATM10 added on Gen 3, and both are rated to work between 0 and 40 °C (32 and 104 °F).
Price and stock
On 19 September 2026, Air was listed at $199 but out of stock, though it still appeared on RingConn’s comparison chart. Gen 3, meanwhile, could be ordered from $349, with prices varying by region and RingConn quoting 3 to 5 business days for US delivery once it ships. Check ringconn.com for Air’s stock, and for Gen 3’s sizing kit, before you buy.
Frequently asked questions
Does RingConn Gen 2 Air include sleep apnea monitoring?
No. Air has no apnea feature. Gen 3 shows an apnea pattern as a risk indicator, and RingConn says Gen 3 isn't a medical device, so that pattern is neither a diagnosis nor a sleep study.
Will RingConn Gen 3 vibrate for incoming texts?
No. Gen 3's motor only handles health alerts and reminders; RingConn rules out messages and alarms. Air has no motor at all.
Do Gen 2 Air and Gen 3 use the same size?
No. Air shares Gen 2's sizing kit, in sizes 6 to 14, while Gen 3 has its own kit in sizes 6 to 15. RingConn says Gen 3 sizes differ from its other rings and from jewelry sizes, so size yourself again before you order.
Is there a subscription on either ring?
No. RingConn lists no subscription fee for Gen 2 Air or Gen 3; you pay once, for the ring.
Sources
- RingConn — Gen 2 Air product page — accessed 2026-09-22
- RingConn — Gen 3 product page — accessed 2026-09-22
- RingConn — product compare — accessed 2026-09-22

