RingConn Gen 3 vs Ultrahuman Ring PRO

Ultrahuman announced Ring PRO, its third-generation ring, on 27 February 2026, as a pre-order that left out the United States. Its US store now takes pre-orders for a later ship date, so for American buyers the first difference is timing.

How Gen 3 and Ring PRO compare

Spec	RingConn Gen 3	Ultrahuman Ring PRO
US price, 19 September 2026	From $349	$479
US availability	On sale; delivery 3–5 business days after shipment	Pre-order, shipping from 10 October 2026
Battery	10–12 days with vibration on, 11–14 off	Up to 15 days: about 12 in Turbo, 15+ in Chill
Charging case	Universal, for any RingConn ring; about 120 minutes to fill	Included; up to 45 extra days; Qi (5 W) or USB-C; Find My Case speaker
Data kept on the ring	10 days	Up to 250 days
Thickness	2.3 mm	2.65 mm, varies by size
Width	Not published	Not published
Weight	2.5–3.5 g	3.3–4.8 g
Sizes	6–15, Gen 3 kit	5–14, no half sizes
Sensors	Optical heart rate, temperature, 3-axis accelerometer, vibration motor	Redesigned PPG, temperature, 6-axis IMU
Water	IP68 and 10 ATM, 100 m (328 ft)	100 m (328 ft)
Operating temperature	0–40 °C (32–104 °F)	Not published
Phone	iOS 17.0+, Android 10.0+	iOS and Android; versions not published
Bluetooth	Version not published	Bluetooth Low Energy 5.3
Subscription	None	None for core data; optional paid PowerPlugs

Ordering one in the US

RingConn listed Gen 3 from $349 on 19 September 2026, noting that prices vary by region, and quotes US delivery in 3 to 5 business days once the package ships.

Ring PRO is a pre-order in the US: Ultrahuman’s store lists it at $479, shipping from 10 October 2026. An Amazon listing for a single finish and size was already live in September, so the two sources disagree. Until they line up, treat the ship date as uncertain.

Battery and the charging case

Gen 3’s battery depends on its vibration motor: 10 to 12 days with alerts enabled, 11 to 14 without them, and RingConn’s “up to 14 days” is the top of that second range. Ring PRO’s depends on a mode. Ultrahuman rates it for up to 15 days overall, about 12 in Turbo and more than 15 in Chill, under its own test conditions, and says results vary.

The cases do different jobs. RingConn’s is a universal wireless charger for every RingConn ring and size, and a Gen 2 case of the right size charges Gen 3 as well. Filling it takes about 120 minutes, and the ring’s own charge time is the one figure RingConn leaves out. Ring PRO’s case is part of the $479 bundle, along with a 1-meter USB-C to C cable. It charges the ring through UltraSnap magnetic DC pins and doubles as a battery: Ultrahuman claims up to 45 extra days from it. The case itself charges by Qi at 5 watts or over USB-C, and it has a Find My Case speaker.

If you want the case to carry a long trip, that’s Ring PRO. If you charge once a week anyway, Gen 3’s 10 to 12 days with alerts on covers it.

Ten days of storage against 250

This is the widest gap on paper. Gen 3 can bank 10 days of readings before it needs your phone. Ring PRO keeps up to 250 days, using internal and external flash, and in Chill Mode its case can hold up to a year of ring data. Leave your phone at home for a week and either ring copes; leave it for a season and only Ring PRO has room.

Health tracking

For sensing, Gen 3 has optical heart rate, temperature and a 3-axis accelerometer, and its vibration motor delivers health alerts and reminders. Heart rate, heart-rate variability and blood oxygen run around the clock, with respiratory rate added in RingConn’s FAQ (its comparison chart lists it under nighttime monitoring). Steps, calories, workouts and VO2 Max are covered too. At night it records sleep duration and stages and flags sleep-apnea risk indicators, and its vascular trends draw on nighttime patterns, habits and your own entries. None of it is medical, either: RingConn says Gen 3 is not a medical device, and its disclaimer rules out diagnosing, treating, curing or preventing any disease, so the apnea and vascular features are patterns to watch, not answers.

Inside Ring PRO are a redesigned PPG sensor, a temperature sensor and a 6-axis IMU, with a dual-core processor that runs machine learning on the chip. Ultrahuman aims it at deep sleep and recovery, with a focus on signal quality during sleep, and at performance tracking rather than GPS workouts. Jade AI arrives as an upgrade to Ultrahuman’s app platform. Ultrahuman lists no vibration motor, apnea pattern or VO2 Max for Ring PRO. It does build in ProRelease, a design Ultrahuman says lets the ring be cut apart more easily if your finger swells.

Fit, phones and water

Gen 3 comes in sizes 6 to 15, measured with its own kit: RingConn says Gen 3 sizing differs from older RingConn rings and from jewelry sizing, which rules out a Gen 2 kit. Its shell is metallic titanium, PVD-coated, with medical-grade epoxy, 2.3 millimeters thick and 2.5 to 3.5 grams, in Polished, Brushed or Matte; RingConn says the finishes change the look and texture, not the sensors.

Ring PRO comes in sizes 5 to 14, with no half sizes. Ultrahuman sends a free sizing kit, warns that its sizes may not match your US jewelry size, and says Ring PRO fits the same as Ultrahuman AIR if you already know that size. It’s 2.65 millimeters thick, varying by size, and 3.3 to 4.8 grams, in titanium with PVD, epoxy and polycarbonate and a hypoallergenic plastic-and-titanium inner surface. It comes in Bionic Gold, Space Silver, Aster Black or Raw Titanium.

On the phone side, Gen 3 asks for iOS 17 or Android 10 at minimum, and your history follows your RingConn account to a new ring. Ultrahuman’s app is listed for both iPhone and Android, and Ring PRO connects over Bluetooth Low Energy 5.3, which Ultrahuman calls EMF-safe.

Gen 3 carries IP68 and 10 ATM ratings for 100 meters (328 feet). Ultrahuman gives Ring PRO the same 100 meters and 328 feet but no IP code, so if you want the rating spelled out, only RingConn provides one.

Price

On 19 September 2026, Gen 3 was from $349 and Ring PRO was $479. Ultrahuman also advertised a trade-in worth up to $115 and financing at about $120 a month through Klarna or Affirm; the trade-in is a promotion, so compare on $479, and remember the optional PowerPlugs cost extra. The gap of up to a hundred and thirty dollars buys the longer battery claim, the bigger memory and the included case, plus the wait. Check RingConn’s stock and both of Ring PRO’s availability lines before you buy.