Sleep Wearable Form Factor
Compare smart rings, fitness bands, and smartwatches for overnight sleep tracking: comfort, battery habits, and sleep metric depth.
S SECRETTOP Black Size 13 Health Fitness Tracker Ring
Available offers (4)
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Current
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Black Size 13
Retailer
€178.36
Available to order
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Price history by offer
Volatility: HighFeatures
- Tracks heart rate SpO2 steps
- Sleep tracking with REM
- 12 sport modes
- Family wellness sharing
- Hands-free photography trigger
- IP68 waterproof
- Dual charging portable case
- 8 sizes for comfortable fit
- Compatible iOS Android
- Ultra-thin lightweight design
General specs
- Brand: S SECRETTOP
- Seller: Retailer
- ID: B0FYRQZLG4
- Size: 13
- Brand: S SECRETTOP
- Weight: ultra-thin and lightweight
- Sensors: heart rate, blood oxygen (SpO2), step counter, sleep tracking
- Materials: stainless steel alloy, epoxy resin
- Size Range: 8 sizes
- Sports Modes: Outdoor Running, Indoor Running, Outdoor Cycling, Indoor Cycling, Walking, Basketball, Football, Badminton, Swimming, Rope Skipping, Mountain Climbing, Yoga
- Standby Time: 7-10 days
- Charging Method: USB cable, portable charging case
- Special Features: hands-free photography (shake finger twice), family wellness sharing
- Tracking Metrics: heart rate, blood oxygen, steps, distance, calories, sleep (total, deep, light, REM, awake)
- Waterproof Rating: IP68
- Battery Life (typical use): 3-5 days
- Compatible Operating Systems: iOS 8.0+, Android 5.1+
- First listed by seller: May 20, 2026
If you are interested in more details, you can find full information on the seller's page.
Shipping options
Delivery to 
United States
United States
Available
This smart ring is for anyone who wants to keep a casual eye on their health without wearing a bulky fitness band or smartwatch. Imagine you're a busy parent who wants to track your sleep quality after a late night or quickly check your step count during a lunch walk. It's designed for everyday wellness, not medical-grade data.
Instead of just listing health metrics, think of this ring as a discreet companion. The sleep tracking is automatic, so you wake up and see how much deep sleep you got without any setup. During a run, you can activate one of the 12 sport modes in the app to see your route and heart rate. The ring is lightweight, so you barely notice it, but it reliably logs your steps and calories.
A unique perk is the hands-free photo capture. When you're out with friends or taking a family selfie, just shake your finger twice to snap the shot. It works with your phone's camera, making it easy to get the perfect group picture without awkward timer runs. The IP68 rating means you don't have to take it off for a sweaty workout or washing hands. Battery life lasts 3-5 days, and the included charging case makes it simple to top up on the go.
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| Brand | S SECRETTOP | Nyweey | Domhong | Uni-Green | Free Shark | Luxelle |
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| Price | €178.36 | €53.49 | €44.58 | €18.66 | €44.58 | €30.12 |
| Seller | Retailer | Retailer | Retailer | Retailer | Retailer | Retailer |
| Update | May 29, 2026 | Apr 29, 2026 | May 20, 2026 | May 27, 2026 | May 20, 2026 | May 20, 2026 |
| Size | 13 | 7# | 09# | 7-13 | 10 | |
| Weight | ultra-thin and lightweight | N/A | Ultra-lightweight | Not specified | ||
| Waterproof Rating | IP68 | IP68 | IP68 | IP68 | IP68, 262 feet | |
| Compatibility | iOS, Android | iPhone, Android | iOS, Android | iOS, Android | ||
| Battery Life | 4+ days (full charge) | Fast charging, long battery life | 5 days, Up to 30 days with charging case | 5-7 days continuous use, 10 days standby | ||
| Design | 2mm slim, specially polished inner surface | Ultra-thin, Lightweight, Lighter, thinner, more comfortable | slim, lightweight | |||
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