RingConn Gen 2 vs RingConn Gen 2 Air

Hold them side by side and you’d struggle to tell them apart. Both are 6.8 millimeters wide and 2.0 thick, both come in sizes 6 to 14 from one sizing kit, and both charge on a magnet in about 90 minutes.

Gen 2 and Gen 2 Air side by side

Spec	RingConn Gen 2	RingConn Gen 2 Air
Price, 19 September 2026	From $299, out of stock	$199, out of stock
Sleep apnea monitoring	Yes	No
Battery	10–12 days, by size	Up to 10 days
Charger in the box	Size-specific wireless case	Wired dock for every size
Shell	Titanium alloy, PVD, medical-grade epoxy	Titanium steel, PVD, medical-grade epoxy
Weight	2–3 g	2.5–4 g
Width and thickness	6.8 × 2.0 mm	6.8 × 2.0 mm
Sizes	6–14	6–14, same kit
Charging time	About 90 minutes, magnetic	About 90 minutes, magnetic
Data kept on the ring	5–7 days	5–7 days
Sensors	24/7 heart rate, blood oxygen, temperature, HRV	24/7 heart rate, blood oxygen, HRV, skin temperature
Water	IP68, 100 m (328 ft)	IP68, 100 m (328 ft)
Operating temperature	Not published	0–40 °C (32–104 °F)
Phone	iOS 17+, Android 10+, Bluetooth 4.0+	iOS 17+, Android 10+, Bluetooth 4.0+
Subscription	None	None

Sleep apnea monitoring is Gen 2’s

Both track sleep stages. Gen 2 also tracks naps and monitors for sleep apnea, and RingConn puts a 90.7 percent figure on that monitoring. That’s RingConn’s claim, not the result of a sleep study, and switching the monitoring on may cost some battery. Air has no apnea monitoring at all, so if that feature is why you’re shopping, Air can’t stand in for Gen 2.

RingConn says its rings aren’t medical devices and aren’t meant to diagnose, treat, cure or prevent disease, so read the apnea and vitals data on either ring as wellness tracking. Neither ring vibrates. For alerts on your finger, vascular trends or size 15, you’d need Gen 3, from $349.

Battery depends on your size

Gen 2’s rating grows with the ring: up to 10 days in sizes 6 and 7, 11 in sizes 8 to 11, and 12 in sizes 12 to 14, which RingConn rounds to “up to 12 days” on its comparison chart. Air tops out at 10 days, depending on size. So in a 6 or 7, Gen 2 only matches Air’s best; from size 8 up, it buys you one or two more days.

Storage is a tie: each keeps 5 to 7 days of data without your phone, and RingConn’s comparison chart lists 7 for both.

A charging case or a dock

This is the difference you’ll handle most often. Gen 2 comes with a size-specific wireless charging case, and RingConn claims up to 150 days of use with it. The case isn’t sold separately; if you lose it, RingConn’s replacement is a dock.

Air comes with a wired dock that fits every size, plus a USB-C cable and manuals, and that dock is the only charger in the box.

Titanium alloy or titanium steel

Gen 2 is titanium alloy with a PVD coating and medical-grade epoxy, at 2 to 3 grams; RingConn’s marketing quotes 2 grams. Air is the steel ring, though RingConn names its metal three ways: titanium steels with PVD and medical-grade epoxy in its specifications, titanium steel in its FAQ, and stainless steel with epoxy on its comparison chart. It weighs 2.5 to 4 grams, and the marketing uses 2.5. Same thickness, heavier ring.

Everything else is shared

Same app, same limits: one ring per RingConn account at a time, a phone on iOS 17 or Android 10 or newer with Bluetooth 4.0 or above, and Bluetooth 5.0 inside the ring. On both, heart rate, HRV, blood oxygen and temperature run around the clock, steps, calories and workouts are logged, and RingConn’s comparison chart marks VO2 Max for the Gen 2 family. Each is IP68-rated to 100 meters, or 328 feet.

Price and stock

RingConn listed Gen 2 from $299 and Air at $199 on 19 September 2026, and both showed out of stock, though both still appeared on its comparison chart. Until one comes back, the hundred-dollar gap is academic, so check ringconn.com before you buy. Gen 2 was RingConn’s flagship before Gen 3; Air is the budget ring of the same family. Neither is a diagnostic sleep or blood-pressure device, and if you want Oura-style membership scores, neither ring offers them.