The most direct answer to the Oura Ring 4 yet, Ultrahuman Ring Pro goes a step further with a titanium unibody, dual-core chip, a charging case that warrants its own review and an AI-assistant called Jade to make sense of all the data it keeps collecting from your digit. After a month of daily wear, mostly against an Apple Watch Series 11 on the same hand, the picture that emerges is excellent hardware sitting on top of software that occasionally overpromises.
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Swapping the Ring Air’s part-titanium, part-resin shell for a proper unibody build, the Ring Pro gets a “fighter jet-grade titanium” wrap, with resin kept to a small window over the PPG sensor. The four available finishes (Raw Titanium, Aster Black, Bionic Gold, Space Silver) can be specified in sizes 5 to 14, weighing 3.3 to 4.8 grams depending on size, with a free sizing kit shipped ahead of the ring itself.
Water resistance is rated to 100mts and even in terms of emergency safety, the Ring Pro comes with a ProRelease feature that lets the ring be cut off quickly should your finger be swollen beyond recognition. As long as you order it in the right size, it’s a pretty comfortable all-day wearable, but call it muscle memory, I had an easier time leaving the Apple Watch on than the Ring Pro. It’s never intrusive enough to wake you up, though, and that is the real win for smart rings over watches, which could have a tendency to get entangled in duvets, blankets or hair, depending on the strap type. At 2.65mm it’s only marginally thicker than the Air’s 2.4mm, but feels more substantial thanks to its build.
The lower inner-half of the ring houses a redesigned PPG sensor, a 6-axis IMU (inertial measurement unit) and a temperature sensor. A more powerful dual-core chip with on-device machine learning helps with faster processing of real-time data and is a big step up from the Ring Air’s single-core variant. One of its strongest attributes is sleep tracking. You can review sleep stages (Awake, REM, Light, Deep), heart rate variability, restfulness, tosses and turns through the night, and a morning alertness score, folded into a Sleep Index that goes well past just hours slept.
Time in Bed as a number means little on its own, since almost nobody falls asleep the moment they lie down, and Ultrahuman wisely leans harder on sleep efficiency instead. Nap detection triggers reliably without any input, and it was convenient when I was trying to make up for the sleep debt. Although I would’ve also liked auto Workout detection, it isn’t supported, and Jade confirmed it needs manual intervention. Cardiovascular and metabolic data arrive as derived scores like Ultra Age (built from Brain, Pulse and Blood Age), Dynamic Recovery and Stress Rhythm rather than raw figures, elegant when it works and a touch opaque when it doesn’t.
The real flex here, though, is the charging case. Designed and built to resemble a storage device for a world-saving vaccine that Ethan Hunt is coming for, it doubles as a 45-day power bank too. It packs a built-in speaker for chimes and Find My-style proximity tracking, an LED strip for charge status, and holds a year of ring data if you forget to sync for a while. It latches onto the ring through magnetic pogo pins, which keep it both convenient and secure during firmware updates, and those updates now route through the case’s direct connection rather than Bluetooth, with a reset button if one fails. The ring itself is rated for 12 days in Turbo Mode and 15-plus days in Chill Mode, and in the month during testing, it is turning out to be accurate because I haven’t charged the charging case yet and already for two charges for the Ring Pro in Turbo mode.
Let’s start with the good news first: there is zero subscription cost attached to the Ring Pro so if the upfront asking price feels steep, there is at least a silver lining. Instead, they give users the autonomy to buy add-ons dubbed “Power Plugs” which act like plugins, unlocking specific data sets for your use case scenarios such as GLP-1 tracking, advanced cycle monitoring, or mapping your personal caffeine windows.
The app is enormous, arguably too enormous, throwing sleep tags (based on food, alcohol, mood, dozens more), recovery scores, stress rhythm and metabolic markers at you fast enough to tip from informative into overwhelming if you’re the obsessive type. Jade AI exists largely to triage this and it can make sense of studying endless data points. Just ask it what’s going on and it’ll summarise weeks of data into something resembling a conversation, with a deeper research mode pulling from the ring, the M1 glucose monitor and Blood Vision biomarkers. It’s a smart fix for a problem the app created for itself.
Accuracy is the bigger issue. Sleep scores came in consistently kinder than the Apple Watch’s, which felt far more willing to dock points for a rough night. Step counts were stranger still with an hour of genuinely active housework around the house once logged as four steps, which isn’t a rounding error so much as the ring being somewhere else entirely. It syncs to Apple Health, but only to display that readout inside its own app, not to cross-reference the two, so don’t expect the ecosystems to actually talk to each other. And the MacOS app simply refused to load for the entire testing month, an unforced error for a company this far along.
The wider ecosystem is where the real ambition of Ultrahuman shows. Pair the ring with the M1 continuous glucose monitor, and workout goals start talking to blood sugar trends. Pair it with the Ultrahuman Home device on the nightstand, and sleep data gets weighed against air quality, UV, blue light, humidity and noise in the room itself. None of it needs a monthly subscription. Ultrahuman sells individual Power Plugs (AFib detection, cycle tracking, migraine prediction, even a Tesla driving-habits add-on) rather than gating the whole experience behind a recurring fee the way Oura does. For anyone tired of subscription creep on a piece of jewellery, that’s worth something on its own.
On paper, the Ring Pro is close to unbeatable with its titanium build, the best charging case in the category, an app stuffed with more data than most people know what to do with, and zero subscription tax. In practice, a month of wear turned up real gaps between claim and measurement, particularly on steps and activity, against a watch that’s stayed accurate across ten generations. If you want sleep tracking with minimal intrusion and simply can’t wear a watch to bed, or you’re an athlete whose coach will actually use this volume of data, it earns its Rs. 44,999 price tag. For someone chasing eight hours of sleep and a few workouts a week, though, it’s a lot of ring for not a lot of extra clarity, and the data alone can send an overthinker into a spiral if they let it.
Editor’s Rating: 8.5 / 10
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