Yideotmz R8 Activity Ring: Compact fitness tracker
Meet the Activity Ring—your new fitness sidekick that's as stylish as it is smart. This isn't just any ring; it's your personal health coach, quietly counting every step, mile, and calorie (yes, even that midnight snack) to keep you moving without the hassle. And when it's time to hit the hay, it's got your back (or rather, your sleep), breaking down your zzz's into light and deep sleep so you can wake up feeling like a champ.
But wait, there's more! Snap pics hands-free (no more awkward timer runs) and brag about your progress to friends through the app—because if you didn't post it, did it even happen? Whether you're running like the wind, cycling like there's no tomorrow, or finding your zen in yoga, this ring's got 8 sport modes to keep up. Plus, it's tough as nails (IP68 waterproof, because sweat and splashes are no match) and won't quit on you, thanks to killer battery life and zero sneaky subscriptions. Just wear it and forget it—until it reminds you to move, that is.
Features
- Sleep insights
- Gesture camera control
- Sport modes
- IP68 waterproof
- Compact fitness tracker
General specs
- Brand: Yideotmz
- Model: R8
- Seller: Amazon
- ID: B0F892GK34
- Package Dimensions: 2 x 2 x 1 inches
- Item Weight: 4.8 ounces
- batteries: 1 A batteries required. (included)
- Date First Available: May 11, 2025
- Country of Origin: China
- First listed by seller: 6/9/25
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
United States
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| Brand | Yideotmz | Oura | HitTopss | TIAZUUX | Victormont | Oura |
| Model | R8 | JZ90-54144-11 | Smart Ring | Gen-11 | JZ90-54217-10 | |
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| Price | $49.99 | $349.00 | $29.99 | $54.99 | $99.99 | $349.00 |
| Seller | Amazon | Amazon | Amazon | Amazon | Amazon | Amazon |
| Update | Mar 21, 2026 | Mar 21, 2026 | Mar 21, 2026 | Mar 21, 2026 | Mar 21, 2026 | Mar 21, 2026 |
| Package Dimensions | 2 x 2 x 1 inches | 3.07 x 2.91 x 1.73 inches | 3.54 x 3.15 x 1.49 inches | 3.98 x 3.94 x 1.85 inches | ||
| Item Weight | 4.8 ounces | 6.7 ounces | 2.89 ounces | 2.9 Grams | 5.3 ounces | 6.3 ounces |
| batteries | 1 A batteries required. (included) | 1 Lithium Polymer batteries required. (included) | 1 Lithium Polymer batteries required. (included) | 1 Nonstandard Battery batteries required. (included) | 1 Lithium Polymer batteries required. (included) | |
| Date First Available | May 11, 2025 | October 3, 2024 | December 25, 2024 | October 28, 2024 | October 3, 2024 | |
| Country of Origin | China | Estonia | China | China | Estonia | |
| manufacturer | Oura | HitTopss | Oura | |||