spywkn Smart Fitness Tracker Ring: Health & Sleep Tracker
Meet the Smart Fitness Tracker Ring—your new favorite gadget that's as stylish as it is smart. Perfect for women who don't just want to look good but feel great too. Packed with clinical-grade sensors, it keeps tabs on your heart rate, SpO2, and even blood pressure. And when it's time to hit the hay, it's got your back (or rather, your sleep) covered with in-depth analysis of your deep and light sleep stages.
But wait, there's more! This little wonder doesn't just sit pretty on your finger. It's a fitness powerhouse, tracking every step, calorie, and mile with precision. Whether you're running, swimming, or just trying to remember where you left your keys, it's up for the challenge. Plus, with its waterproof design, you can take it from the pool to the party without a second thought.
And here's the kicker—it doubles as a secret weapon for group photos. No more awkwardly asking strangers to take a picture; just use your ring. Oh, and did we mention the charging case? It's not just practical; it's a showstopper with a diamond design that screams luxury. Honestly, it's the kind of gift that makes you look like a genius (and maybe a little bit fancy).
- Fitness Tracker
- Waterproof Photography Ring
- Her Everyday Reminder of Your Love
- US Standard Sizing
- Health & Sleep Tracker
General specs
- Brand: spywkn
- Seller: Amazon
- Sensors: Heart rate, SpO2, Blood pressure
- Battery Life: 3-5 days per full charge, 400mAh battery provides 15 recharges
- Compatibility: iOS, Android
- Waterproof: Yes
- First listed by seller: 6/8/25
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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| Brand | spywkn | OutsideWorld | spywkn | Delcast | Hunan Constant Li Electronic Technology Co., Ltd. | MEINING HEALTH CONSULTING LLC |
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| Price | $49.99 | $34.89 | $49.99 | $55.99 | $109.99 | $39.99 |
| Seller | Amazon | Joom | Amazon | Amazon | Amazon | Amazon |
| Update | June 27, 2025 | August 19, 2025 | June 27, 2025 | July 20, 2025 | June 29, 2025 | June 27, 2025 |
| package_dimensions | 3 x 3 x 1.7 inches | 3.58 x 3.5 x 1.85 inches | 1 x 1 x 1 inches | 3.15 x 3.15 x 1.18 inches | ||
| item_weight | 4.4 ounces | 4.2 ounces | 1 Grams | 0.106 ounces | ||
| batteries | 1 Nonstandard Battery batteries required. | 1 AA batteries required | 1 Lithium Ion batteries required. (included) | 1 Lithium Polymer batteries required. (included) | ||
| date_first_available | April 16, 2025 | May 21, 2025 | August 18, 2024 | |||
| country_of_origin | China | China | USA | |||
Reviews
Felix Wiśniewski
June 8, 2025
Duke
June 8, 2025
Ana López
June 8, 2025
Julia Moreau
June 8, 2025
Carmen King
June 8, 2025