SACOSDING Smart Watch Smart Ring for Sleep: Heart rate monitor
Meet the Smart Ring for Sleep—your new bedtime buddy that's also a bit of a fitness freak. It's not just about counting sheep; this sleek wearable keeps an eye on your heart rate and deciphers your sleep like a pro. And yeah, it's tough too—thanks to that IP68 waterproof badge, it laughs in the face of sweat and rain. Got a smartphone? Cool, because with Bluetooth 5.0, this ring and your phone are basically besties, syncing data faster than you can say 'nap time.' Whether you're lifting, running, or just pretending to (no judgment), its multiple sports modes have got your back. And the best part? It plays nice with both Android and iOS, so no one gets left out. Perfect for anyone who wants to sleep smarter and move more.
- IP68 waterproof
- Bluetooth 5.0
- Multiple sports modes
- Compatible with Android iOS
- Heart rate monitor
General specs
- Brand: SACOSDING Smart Watch
- Seller: Joom
- Waterproof rating: IP68
- Bluetooth version: 5.0
- Compatibility: Android, iOS
- Battery life: 8 hours
- First listed by seller: 6/21/25
If you are interested in more details, you can find full information on the seller's page.
Shipping options
United States
Comparison with similar products
| This item | Recommendations | |||||
|---|---|---|---|---|---|---|
Smart Ring for Sleep Heart rate monitor
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Smart Ring Heart rate monitoring
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Smart Health Tracker Ring
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Smart Ring for Health and Sleep Monitoring Health monitoring
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Smart Ring Fitness Tracker Smart Sleep Tracker
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Waterproof Sport Intelligent Health Ring Black Health monitoring
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| Brand | SACOSDING Smart Watch | SRZNJZ | OutsideWorld | UXOXU | Wrigleys | |
| Model | R09 SIZE 9 | |||||
| Color |
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| Rating |
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| Price | $47.63 | $15.41 | $23.99 | $34.89 | $25.99 | $331.20 |
| Seller | Joom | Sunsky | Amazon | Joom | Amazon | Joom |
| Update | August 16, 2025 | August 23, 2025 | June 27, 2025 | August 19, 2025 | July 17, 2025 | August 23, 2025 |
| Compatibility | Android, iOS | Universal | Android, iOS | |||
| Waterproof | 5ATM | Yes | Yes | |||
Smart Ring for Sleep
Ava G.
Phoenix, AZ
June 24, 2025
My first impression was positive; the ring looks sleek and feels lightweight, making it easy to forget I'm wearing it. I picked it up from the store, which was convenient, and compared to other options in the same price range, it offers decent value. However, I'm a bit unhappy with how it handles detailed sports tracking—it's not as precise as I hoped, and the lack of clear guidance means I often second-guess the data. As someone who loves to travel, I find it handy for monitoring my health on the road, but I wish it were more reliable. Overall, it's a good tool for basic insights, but it falls short of being perfect.
- Pros: From what I feel, this SACOSDING ring is incredibly comfortable to wear, even overnight, and it pairs easily with my phone for quick data updates. I appreciate that it works with any smartphone I have, and it handles sweat and rain without a fuss, which is great for my active days. The sleep insights are quite detailed, helping me understand my rest better, and it tracks my heart rate reliably during walks or light exercises.
- Cons: The manuals are useless, as they don't explain much, and I had to figure things out on my own. For the price, I expected more accuracy in the fitness tracking—sometimes it feels off, especially during more intense activities. It doesn't hold a charge as long as I'd like, needing frequent top-ups, which is a bit inconvenient for someone always on the go.