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 Smart Ring
Available Options
Current
20mm
AliExpress
€13.28
Available to order
Price history by variant
Volatility: MediumFeatures
- Heart rate monitoring
- Multi-sport mode
- Sleep monitoring
- IP68 waterproof
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.
€13.28
Last price update: 6/22/26
Available to order
Price History for seller AliExpress
| Date | Price |
|---|---|
| 6/22/26 | €13.28 |
| 6/18/26 | €13.35 |
Shipping options
Delivery to 
United States
United States
Available
Designed for the fitness enthusiast who wants to track health without wearing a bulky wristband, this smart ring monitors your heart rate, sleep, and activity around the clock. Slip it on and you might forget it's there—until it catches your heart rate spike during a stressful meeting or records your deep sleep cycle.
The IP68 waterproof rating means you can swim, shower, or sweat without worry. With multi-sport mode, the ring automatically recognizes walks, runs, and cycling. The gentle vibration alerts you to call, text, or goal notifications. Use the free app to see detailed sleep stages, heart rate trends, and step counts.
Ideal for anyone who wants a discreet health companion. The silver finish works with any style. Charge lasts up to 5 days, so you can wear it nonstop. This smart ring gives you actionable data without the distraction of a screen.
Smart Ring Silver Heart rate monitoring
€13.28
When this device makes sense
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