Piano Potato R16 Ultra-thin Smart Ring: Ultra-thin and comfortable design
Meet the Ultra-thin Smart Ring – not just another piece of tech jewelry, but your sleek, everyday companion that doesn’t know the meaning of 'bulky'. Whether you're hitting the gym or just hitting the couch (no judgment here), its waterproof design and comfy fit make it a no-brainer for both men and women. And hey, it’s not just about looking good; this little gadget keeps tabs on your steps, heart rate, calories burned, and how far you’ve wandered (intentionally or not).
But wait, there’s more – it doubles as your sleep detective, breaking down your night into deep sleep, light sleep, and those 'why am I awake at 3 AM?' moments. Ladies, it’s got your back (or rather, your wrist) with health tracking that includes period and ovulation predictions. Fancy controlling TikTok or snapping pics without touching your phone? Air gestures have got you covered. (Yes, it’s as cool as it sounds.)
No sneaky subscription fees here, and with a battery that lasts up to 7 days, it’s the gift that keeps on giving – perfect for any occasion, or just because you deserve it.
- Waterproof and durable materials
- Activity and fitness tracking
- Precision sleep monitoring
- Women's health tracking
- No subscription fee
- Long battery life
- Ultra-thin and comfortable design
General specs
- Brand: Piano Potato
- Model: R16
- Seller: Amazon
- package_dimensions: 3.58 x 3.54 x 1.85 inches
- item_weight: 4.2 ounces
- country_of_origin: China
- date_first_available: April 1, 2025
- First listed by seller: 6/26/25
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
| This item | Recommendations | |||||
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Piano Potato R16 Ultra-thin and comfortable design
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Piano Potato R16 Ultra-thin and comfortable design
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Piano Potato R16 24/7 heart rate monitor
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Smart Ring Health Tracker Ultra-Thin & Lightweight Design
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Smart Ring Health Tracker Ultra-Thin & Lightweight Design
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Smart Health Tracker Ring Ultra-thin and lightweight design
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| Brand | Piano Potato | Piano Potato | Piano Potato | Mirlray | Mirlray | Mirlray |
| Model | R16 | R16 | R16 | |||
| Color | ||||||
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| Price | $79.98 | $79.98 | $79.98 | $39.99 | $37.99 | $39.99 |
| Seller | Amazon | Amazon | Amazon | Amazon | Amazon | Amazon |
| Update | June 29, 2025 | June 27, 2025 | June 27, 2025 | June 28, 2025 | June 29, 2025 | August 5, 2025 |
| package_dimensions | 3.58 x 3.54 x 1.85 inches | 3.58 x 3.5 x 1.85 inches | 2.9 x 2.9 x 1.2 inches | 2.95 x 2.95 x 1.18 inches | 3.15 x 3.15 x 1.06 inches | 2.95 x 2.95 x 1.18 inches |
| item_weight | 4.2 ounces | 4.6 ounces | 3.52 ounces | 2.24 ounces | 2.08 ounces | 2.24 ounces |
| country_of_origin | China | China | China | China | China | |
| date_first_available | April 1, 2025 | April 1, 2025 | May 21, 2025 | March 3, 2025 | July 10, 2025 | |
| batteries | 1 A batteries required. (included) | 1 A batteries required. (included) | 1 A batteries required. (included) | |||
Ultra-thin Smart Ring
Katherine W.
Denver, CO
July 3, 2025
As a freelancer who values both functionality and aesthetics, I bought this ring hoping it would blend seamlessly into my daily life while offering advanced health monitoring. The reality is that it does a lot well—it's super thin and comfortable, and I've enjoyed tracking my walks around Denver without feeling weighed down. The heart rate and calorie tracking seem reliable during my home gardening sessions, and the women's health features have been a pleasant surprise, helping me stay on top of things. However, I expected more accuracy in the sleep analysis; it often gives vague readings that don't match how rested I feel. The gesture controls were a letdown; they're not as intuitive as advertised and can be frustrating when I'm trying to snap a quick photo without fumbling. Overall, it's a good device for someone like me who's tech-savvy but not perfect. I'd recommend it with caution, especially if you're looking for something super precise, but for general fitness and style, it holds up well after a couple of months of use.
- Pros: I expected a comfortable and stylish accessory, and it truly delivers on that. The fit is super snug and lightweight, making it easy to wear all day without any bulkiness. It tracks my daily activities like steps and heart rate accurately, and I appreciate the health insights for women, which feel personalized and helpful. The battery life is impressive, lasting nearly a week without needing a charge, and I love that there are no extra fees to use it.
- Cons: I expected more from the sleep tracking; it seemed to me that the breakdown of sleep stages wasn't always precise, and I found myself questioning the data during those late-night wake-ups. The air gestures for controlling my phone were a bit finicky and didn't work as smoothly as I hoped, often requiring multiple attempts. Also, while it's waterproof, I noticed it can feel a bit delicate, and I worry about durability over time.