Ultrahuman's $479 smart ring goes on sale in the US with no monthly fee

Ultrahuman's Ring Pro, a smart ring that tracks heart rate, sleep and recovery, hit US stores in the last week of October. It costs $479 at Best Buy and Amazon, and there is no subscription. A Tom's Guide reviewer has worn it for a few days and calls it a seriously strong competitor to the Oura Ring 5. The full review is still coming.

What you get for $479

The price is $79 more than the Oura Ring 5. It includes a metal Pro Charging case. The ring comes in gold, silver, black and titanium, in sizes five to 14. Ultrahuman skips the monthly fee that many rivals charge, which the reviewer calls the biggest difference between the two brands.

The patent backstory

Oura won a patent case in 2025 that kept Ultrahuman's earlier Ring Air off US shelves. The Ring Pro has a new one-piece design built to avoid Oura's patents. Ultrahuman's CEO, Mohit Kumar, says US Customs reviewed it and issued an order calling the design unique and non-infringing.

The design also has a safety feature called ProRelease Technology. It is meant to make it easier for emergency responders or medical staff to cut the ring off if needed, such as when a battery swells.

Size and weight

The Ring Pro is bigger than Oura's. In the reviewer's size 11, it weighs 4.52 grams, versus about 2.5 grams for the Oura Ring 5. The band is 2.6mm thick and the sensor area is about 4.8mm. After 24 hours, the reviewer says it was hardly noticeable, though that may change with longer wear.

Battery and charging case

• Ultrahuman claims up to 15 days per charge. Oura claims up to nine, and real use is closer to seven or eight.
• The case can recharge the ring twice, for up to 45 days without a wall outlet.
• The case also handles firmware updates and gives haptic and audible alerts, such as when charging is done.

What is still unknown

The 15-day battery claim has not been tested yet. The same goes for the ring's heart rate accuracy, which Ultrahuman says improved thanks to a new sensor and a chip that can run machine learning on the ring itself. The reviewer plans to compare it with other smart rings and fitness trackers in the full review.