RENPHO Lynx Smart Ring: Comprehensive health monitoring
Meet the RENPHO Lynx Smart Ring—your new fitness buddy that doesn’t just look good (thanks to its sleek titanium design) but also packs a punch with features that’ll make your old fitness tracker blush. Whether you’re diving into pools (yep, it’s 5ATM waterproof) or just diving into your couch, this ring’s got your back. And with a 7-day battery life plus a charging case, it’s like the Energizer Bunny of smart rings—it keeps going and going.
But wait, there’s more (no infomercial voiceover included). This little powerhouse tracks your sleep like a guardian angel, keeps an eye on your blood oxygen levels, and even plays therapist with stress and heart rate tracking. Walking or running? It’s on it. Plus, it plays nice with the Renpho Health App, syncing effortlessly with Apple Health and Google Health Connect—no sneaky subscription fees here. Oh, and did we mention it’s HSA/FSA eligible? Basically, it’s like your health’s new best friend that also helps you save money. Talk about a win-win.
- No subscription fees
- 7-day battery life
- 5ATM waterproof
- HSA/FSA eligible
- Comprehensive health monitoring
General specs
- Brand: RENPHO
- Model: Lynx
- Seller: Amazon
- product_dimensions: 0.75 x 0.75 x 0.12 inches
- item_weight: 0.16 Ounces
- batteries: 1 Lithium Ion batteries required. (included)
- waterproof: 5ATM
- battery_life: 7 days
- First listed by seller: 7/17/25
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
United States
Comparison with similar products
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RENPHO Lynx Comprehensive health monitoring
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| Brand | RENPHO | RENPHO | RENPHO | RENPHO | RENPHO | HitTopss |
| Model | Lynx | LYNX | LYNX | LYNX | Smart Ring | |
| Color | ||||||
| Rating |
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| Price | $179.00 | $229.00 | $219.00 | $219.00 | $229.00 | $29.99 |
| Seller | Amazon | Amazon | Amazon | Amazon | Amazon | Amazon |
| Update | July 18, 2025 | July 17, 2025 | June 27, 2025 | June 27, 2025 | July 17, 2025 | June 27, 2025 |
| product_dimensions | 0.75 x 0.75 x 0.12 inches | 0.71 x 0.71 x 0.12 inches | 0.81 x 0.81 x 0.12 inches | |||
| item_weight | 0.16 Ounces | 0.16 Ounces | 0.17 Ounces | 2.89 ounces | ||
| batteries | 1 Lithium Ion batteries required. (included) | 1 Lithium Ion batteries required. (included) | 1 Lithium Ion batteries required. (included) | 1 Lithium Polymer batteries required. (included) | ||
| waterproof | 5ATM | 5ATM | 5ATM | |||
| battery_life | 7 days | 7 days | 7 days | |||
Lynx Smart Ring
Pooja G.
Jaipur
July 24, 2025
I bought this as a gift for myself, hoping it would help me keep track of my health in a subtle way. The design is indeed beautiful, and it does a decent job monitoring things like sleep and heart rate, but I've noticed it's not always spot-on with the data. For instance, it sometimes says I'm stressed when I'm just sitting quietly, which is a bit annoying. On the plus side, it's held up well with daily wear and the long battery life means I don't have to charge it often. Overall, it's a good device, but not perfect—it could use some improvements in accuracy and comfort to be truly reliable.
- Pros: It looks very stylish and sleek, which I appreciate as someone who cares about fashion. The battery lasts quite a long time, and I like that it works even when wet, making it handy for daily use without worry. Syncing with my phone's health apps was easy and didn't cost extra, which is a nice touch.
- Cons: After some settings, it seems to overstate my activity levels at times, making it feel less accurate. The ring can be a bit bulky for my taste, and I wish it were more comfortable to wear all day. The app interface could be smoother; it occasionally lags or doesn't update properly.