Sleep Wearable Form Factor
Compare smart rings, fitness bands, and smartwatches for overnight sleep tracking: comfort, battery habits, and sleep metric depth.
TESKKR R191121 Smart Ring
Product details
General specs
- Brand: TESKKR
- Model: R191121
Starting from €71.39
Last price update: 6/8/26
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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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