Swim Wearables
Compare swim-capable trackers and smartwatches by water rating, swim mode, battery life, comfort, and when a smart ring is only a boundary option.
R12M 20mm / 19.8mm Smart Ring
Available Options
Current
20mm / 19.8mm
AliExpress
€14.21
Available to order
Price history by variant
Volatility: MediumFeatures
- Heart rate monitoring
- Multi-sport mode
- Sleep monitoring
- IP68 waterproof
- Fitness tracking
Product details
General specs
- Model: R12M
- Model: R12M
- Water Resistance: IP68
If you are interested in more details, you can find full information on the seller's page.
€14.21
Last price update: 6/22/26
Available to order
Price History for seller AliExpress
| Date | Price |
|---|---|
| 6/22/26 | €14.21 |
| 6/18/26 | €12.84 |
Shipping options
Delivery to 
United States
United States
Available
Stop checking your wrist. The R12M Smart Ring puts health tracking at your fingertip. Slip it on in the morning and forget it is there. Whether you are typing at your desk or walking the dog, the ring quietly monitors your heart rate and steps. It even detects sleep automatically, so you get a clear picture of your recovery without tapping a button.
This ring is built for real life. IP68 rated, you can wash your hands, run in the rain, or sweat through a workout without a second thought. Multiple sport modes track your runs, cycles, and gym sessions with accurate metrics. The ring sensor picks up subtle changes. You will see your heart rate spike during a stressful meeting or calm down during a meditative walk.
No bulky screen, no constant notifications. Only the data you need to improve your health, delivered to your phone. And at more than 50% off, it is a simple upgrade from your old fitness band.
Smart Ring Heart rate monitoring
€14.21
When this device makes sense
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