Twievo R11 Fitness Tracker Ring: Heart rate monitoring
Meet the Smart Ring—your sleek, no-nonsense fitness buddy that's as thin as a credit card but packed with smarts. It's for everyone, whether you're a gym rat or just trying to remember when you last moved. No subscriptions, no fuss—just straight-up health tracking that keeps an eye on calories, heart rate, blood oxygen, and even how well you're sleeping (or not).
Here's the lowdown on what makes it cool: First off, it's got a 5ATM waterproof rating, meaning you can take it for a swim or a shower without a second thought. The design? So thin and comfy, you'll forget it's there—until it reminds you to move, that is. And get this: flick your wrist to snap photos or navigate your phone, because who has time for buttons? Plus, it plays nice with almost any smartphone out there.
What's in the box? Just the essentials: the ring itself, a charging case (because losing tiny things is a sport), two charging cables (one for home, one for... wherever), and a user manual (for those who read them).
Features
- Blood oxygen monitoring
- Sleep tracking
- Calories tracking
- 5ATM waterproof
- No subscription fee
- Heart rate monitoring
General specs
- Brand: Twievo
- Model: R11
- Seller: Amazon
- ID: B0DWL3HM74
- batteries: 1 Lithium Metal batteries required. (included)
- Date First Available: December 20, 2024
- Country of Origin: China
- Item Weight: 1 Milligrams
- Display Size: 0.7 Inches
- First listed by seller: 6/17/25
If you are interested in more details, you can find full information on the seller's page.
Buy on Amazon
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Shipping options
Russia
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| Brand | Twievo | Piluyaa | Shenzhen Lanxi Technology Co., Ltd | GenXenon | ANBS | YOUKUI |
| Model | R11 | AKIKI | H01 | |||
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| Price | $39.99 | $39.99 | $39.99 | $23.99 | $40.36 | $22.16 |
| Seller | Amazon | Amazon | Amazon | Amazon | Joom | Amazon |
| Update | Mar 11, 2026 | Jun 27, 2025 | Jun 27, 2025 | Mar 11, 2026 | Dec 8, 2025 | Jun 27, 2025 |
| batteries | 1 Lithium Metal batteries required. (included) | 1 Lithium Polymer batteries required. (included) | 1 9V batteries required. | 1 12V batteries required. (included) | ||
| Country of Origin | China | China | China | |||
| Item Weight | 1 Milligrams | 0.05 Kilograms | 3.52 ounces | 1.76 ounces | ||
| Package Dimensions | 1.97 x 0.39 x 0.39 inches | 3.27 x 3.23 x 1.12 inches | 1.97 x 1.97 x 0.79 inches | |||