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 US Size 11 Fitness Tracker Smart Ring
Available offers (4)
Current
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Black US Size 11
Retailer
€178.36
Available to order
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Price history by offer
Volatility: HighFeatures
- Heart rate & SpO2 monitoring
- Sleep tracking with REM stages
- 12 sport modes
- IP68 waterproof
- Hands-free photography
- Family wellness sharing
- 7-10 day standby battery
- Dual charging case included
- 8 sizes available
- No subscription required
General specs
- Brand: S SECRETTOP
- Seller: Retailer
- ID: B0FYS159L6
- Size: Black 11 (US 11)
- Weight: Ultra-thin and lightweight
- Material: Stainless steel alloy exterior, epoxy resin inner ring
- Sport Modes: 12 modes: Outdoor Running, Indoor Running, Outdoor Cycling, Indoor Cycling, Walking, Basketball, Football, Badminton, Swimming, Rope Skipping, Mountain Climbing, Yoga
- Battery Life: 3-5 days typical use, 7-10 days standby
- Compatibility: Android 5.1+, iOS 8.0+
- Steps Counter: Yes
- Family Sharing: Yes
- Sleep Tracking: Yes
- Charging Method: USB cable and portable charging case
- No Subscription: Yes
- Calorie Tracking: Yes
- Water Resistance: IP68
- Distance Tracking: Yes
- Heart Rate Monitor: Yes
- Blood Oxygen Monitor: Yes
- Hands-Free Photography: Yes
- First listed by seller: April 27, 2026
If you are interested in more details, you can find full information on the seller's page.
Price History for seller Retailer
Shipping options
Delivery to 
United States
United States
Available
This smart ring is for anyone who wants health insights without wearing a bulky watch. It tracks sleep, heart rate, and activity with minimal fuss. You can wear it all day and not even notice it's there.
What surprised me was the family wellness feature. I added my mom to the app and now I get alerts if her heart rate seems off during the night. The sleep tracking is detailed: it shows deep, light, and REM stages. I noticed I was getting too little deep sleep, so I adjusted my evening routine. The ring also works as a remote shutter for photos. A double shake of your finger captures a group shot without stretching for your phone.
The ring comes with a USB cable and a portable charging case. A full charge lasts about 4 days of typical use. It's waterproof to IP68, so you can wear it in the rain or during a sweaty workout. Choose your size from the included guide before ordering for a comfortable fit.
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BENIO Gen4 Sliver
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| Brand | S SECRETTOP | Uni-Green | Kuinha | Osawalla | FKGZJF | BENIO |
| Model | 11# | 10# | Gen4 | |||
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| Price | €178.36 | €18.66 | €15.15 | €35.67 | €30.39 | €41.02 |
| Seller | Retailer | Retailer | Retailer | Retailer | Retailer | Retailer |
| Update | May 20, 2026 | May 27, 2026 | Mar 21, 2026 | Jun 24, 2026 | May 29, 2026 | Apr 27, 2026 |
| Size | Black 11 (US 11) | 7-13 | 9 | 9 | ||
| Weight | Ultra-thin and lightweight | Ultra-lightweight | 0.13 oz (3.6 g) | Lightweight | ||
| Material | Stainless steel alloy exterior, epoxy resin inner ring | High-quality materials, Fully enclosed structure | Stainless steel | |||
| Battery Life | 3-5 days typical use, 7-10 days standby | Fast charging, long battery life | 7 days | 5-7 days (ring), 30 days (with charging case) | 3-5 days, 60 days with charging case | |
| Compatibility | Android 5.1+, iOS 8.0+ | iPhone, Android | Android 6.0 or above, iOS 11.0 or higher | iOS 8.0+, Android 5.1+, HarmonyOS | Android 4.4+, iOS 8.4+ | |
| Water Resistance | IP68 | IP68 | Yes | |||
| Sensors | Heart rate, Blood oxygen, Sleep, Activity, Stress, HRV, Skin temperature | Heart rate, Blood oxygen (SpO2), HRV (Stress) | 4.0 sensors | |||
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