Sleep Wearable Form Factor
Compare smart rings, fitness bands, and smartwatches for overnight sleep tracking: comfort, battery habits, and sleep metric depth.
TESKKR R191121 R191121 Smart Ring
Features
- Heart rate and blood oxygen monitoring
- Sleep tracking with quality analysis
- Menstrual cycle management
- IP68 waterproof for swimming
- Step counting and calorie tracking
- Remote photo control
- Multiple sports modes
- No subscription fee
General specs
- Brand: TESKKR
- Model: R191121
- Seller: Retailer
- ID: B0G3B2L5NT
- Size: 8#
- Brand: TESKKR
- Weight: 0.00110231131 pounds
- Material: High-quality stainless steel, French enamel engraving, Imported smart chip
- App Features: Daily/weekly/monthly data tracking, Health trends, Exercise route, Exercise time, Speed, Remote photo taking, Health data sharing
- Intended Use: Health monitoring smart wearable device
- Sports Modes: Running, Cycling, Skipping, Walking, Hiking, Yoga, Dancing, Golf
- Compatibility: iOS, Android
- NumberOfItems: 1
- Wearing Comfort: Comfortable, Unnoticeable during sleep
- Subscription Fee: No
- Water Resistance: Safe for everyday wear, sports, swimming
- Waterproof Rating: IP68
- Medical Disclaimer: No medical diagnostic functions, Data for daily health reference only, No blood pressure monitoring
- Sleep Tracking Metrics: Sleep time, Wake-up time, Deep sleep, Light sleep
- Activity Tracking Metrics: Steps, Calorie consumption, Distance
- Health Monitoring Features: Heart rate, Blood oxygen, Stress, Menstrual cycle, Sleep monitoring
- First listed by seller: March 21, 2026
If you are interested in more details, you can find full information on the seller's page.
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Shipping options
Delivery to 
United States
United States
Available
Designed for the active woman who wants to manage her health without constant phone checks, this smart ring is your discreet wellness companion. It tracks sleep patterns, heart rate, and blood oxygen 24/7, giving you insights to adjust habits and improve rest. The app shows daily, weekly, and monthly data, so you can spot trends and make informed choices.
Beyond basic tracking, this ring connects you to loved ones. Share health data with friends or family in real time, and use the remote photo feature to capture moments with a simple shake. It supports multiple sports modes like running and yoga, providing exercise guidance without subscriptions. With IP68 waterproofing and a comfortable fit, it stays on during workouts or swimming, offering peace of mind for your busy lifestyle.
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| Brand | TESKKR | Kuinha | Free Shark | REWSX | VIVIYO | Freeze2Trim |
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| Price | €71.39 | €15.16 | €53.53 | €53.53 | €35.69 | €38.37 |
| Seller | Retailer | Retailer | Retailer | Retailer | Retailer | Retailer |
| Update | May 1, 2026 | Mar 21, 2026 | Apr 1, 2026 | May 11, 2026 | May 29, 2026 | Jun 24, 2026 |
| Size | 8# | 9 | 8 | 9 (US) | 6 | |
| Weight | 0.00110231131 pounds | Lightweight (unspecified) | 0.1 lbs | |||
| Compatibility | iOS, Android | Android 6.0 or above, iOS 11.0 or higher | iOS, Android | iPhone, Android | iOS and Android (unspecified) | iPhone, Android |
| Water Resistance | Safe for everyday wear, sports, swimming | IP68 | Unspecified | |||
| Battery Life | 7 days | 3-5 days | Unspecified | |||
| Product Type | Smart Ring, Health Tracker, Fitness Tracker, Sleep Tracker, Activity Tracker | Smart Ring | Smart Ring | |||
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