Sleep Wearable Form Factor
Compare smart rings, fitness bands, and smartwatches for overnight sleep tracking: comfort, battery habits, and sleep metric depth.
lumthou Smart Ring
Product details
General specs
- Brand: lumthou
- Size: 9
- Device Type: Smart Ring
- Connectivity: Bluetooth
- Water Resistance: IP68
Starting from €89.24
Last price update: 10/2/26
A discreet smart ring designed for health and fitness tracking, featuring heart rate monitoring, sleep analysis, and water resistance. It offers various sports modes, long battery life, and comfortable wear for all-day use, with no subscription fees required for core features.
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| Brand | lumthou | S SECRETTOP | Osawalla | VIYONA | Generic | S SECRETTOP |
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| Price | €89.24 | €178.49 | €35.69 | €44.62 | €121.37 | €124.94 |
| Seller | Retailer | Retailer | Retailer | Retailer | Retailer | Retailer |
| Update | May 9, 2026 | May 20, 2026 | Jun 24, 2026 | May 29, 2026 | May 20, 2026 | May 20, 2026 |
| Size | 9 | 8 | 10 | |||
| Battery Life | 5 days per charge | 3-5 days typical use, 7-10 days standby | 5 days continuous use, 30 days total with charging case | Multi-day | 3-5 days typical use, 7-10 days standby | |
| Connectivity | Bluetooth | Android 5.1+, iOS 8.0+ | Bluetooth (via Android 5.1+ or iOS 8.0+) | |||
| Sports Modes | Running, Cycling, Swimming, Yoga, Weightlifting, Hiking, Badminton | Outdoor Running, Indoor Running, Outdoor Cycling, Indoor Cycling, Walking, Basketball, Football, Badminton, Swimming, Rope Skipping, Mountain Climbing, Yoga | 180+ | Outdoor Running, Indoor Running, Outdoor Cycling, Indoor Cycling, Walking, Basketball, Football, Badminton, Swimming, Rope Skipping, Mountain Climbing, Yoga | ||
| Compatibility | Apple Health, Google Fit | iPhone, Android | iOS, Android | men, women | Android 5.1+, iOS 8.0+ | |
| Water Resistance Rating | IP68 | IP68 | IP68 | |||
| Health Monitoring Features | Heart Rate, Blood Oxygen (SpO2), Heart Rate Variability (HRV), Stress Levels, Period Prediction, Activity Status, Skin Temperature Trends | Heart Rate, Blood Oxygen (SpO2), Sleep Monitoring, Steps, Distance, Calories, Blood Pressure | Heart Rate, Blood Oxygen (SpO2), Sleep Monitoring, Calories, Steps, Distance, Blood Pressure | |||
| Material | Stainless Steel Alloy Exterior, Epoxy Resin Inner Ring | epoxy resin, stainless steel | Stainless Steel Alloy (exterior), Epoxy Resin (inner ring) | |||
| Charging Method | USB Cable, Portable Charging Case | wireless charging, charging case, desktop charging | USB Cable, Portable Charging Case | |||
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