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Rollme R11: New smart ring with ECG launches as an affordable alternative to Oura Ring and Ultrahuman

As of writing, the Rollme R11 smart ring (pictured) is only available in one color - black. (Image source: Rollme)
As of writing, the Rollme R11 smart ring (pictured) is only available in one color - black. (Image source: Rollme)
Rollme has added a new model to its smart ring lineup. The R11 features ECG support, sleep and body temperature tracking, and up to 30 days of standby time. It weighs 3.5g and is priced at $139.99.

Rollme has introduced the R11, a new smart ring for users looking for a relatively affordable compact fitness tracker.  This follows previous smart rings from the company (like the R5 and R2) and adds features such as ECG (electrocardiogram) measurement, continuous heart rate tracking, and multi-day sleep analysis.

The R11 weighs 3.5 grams. The company claims it is built using a medical-grade alloy with a black vacuum-plated finish. The outer shell is designed to resist scratches and minor wear, and the ring is rated 5ATM for water resistance. That should make it suitable for basic water exposure, including swimming.

Tracking features include ECG recording, SpO₂ (blood oxygen), skin temperature, heart rate, and estimated blood pressure readings. The ring also offers daily step and calorie tracking, alongside a few activity modes, though the number and specificity of those workout modes appear limited at launch.

Sleep monitoring includes both duration and quality breakdowns, with sleep stages tracked overnight. The company hasn’t detailed whether the R11 supports HRV (heart rate variability), respiratory rate, or more advanced recovery metrics.

(Image source: Rollme)
(Image source: Rollme)
(Image source: Rollme)
(Image source: Rollme)

Powering the ring is a small battery that, according to Rollme, lasts between 4-6 days depending on use, with up to 30 days on standby. Charging is handled by a magnetic base and a separate portable charging case is also included. The ring uses Bluetooth 5.3 to sync data with the Rollme mobile app, which is available on Android (6.0+) and iOS (11+).

The R11 comes in four ring sizes - US 8, 9, 10, and 11 - and only one color variant at the moment (black). Unlike other high-end companies that offer subscription-based data access, the R11 does not appear to require any recurring payments for its app features.

At launch, the Rollme R11 is priced at $139.99 and is available directly through the company's official website. It joins a growing list of smart rings in the sub-$150 segment, and its ECG inclusion gives it a slight functional edge over many models in the same bracket. That said, the company hasn’t shared details on whether its ECG data is clinically validated, and real-world accuracy remains to be seen.

Buy the Oura Ring 4 (Silver) on Amazon.

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> Expert Reviews and News on Laptops, Smartphones and Tech Innovations > News > News Archive > Newsarchive 2025 05 > Rollme R11: New smart ring with ECG launches as an affordable alternative to Oura Ring and Ultrahuman
Anubhav Sharma, 2025-05-15 (Update: 2025-05-15)