🛡️ We recommend sizing 1 full size up— Vyne rings fit snug by design for accurate sensor readings.
🛡️ Choose your protection plan: enjoy 1-month after-sales support after delivery, or upgrade to a 6-month plan with free replacement for any damage, loss, or issues, or opt for lifetime service for long-term peace of mind and ongoing support.
No subscription fees ever for this app.
30-day free return policy
Global free shipping
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Crafted from premium nano-ceramic, this smart ring is lightweight, skin-friendly, and scratch-resistant—offering lasting comfort and timeless style for everyday wear.
Modern life can be stressful without us even realizing it. QRing continuously tracks your stress levels throughout the day, helping you recognize patterns and build healthier habits for a more balanced lifestyle.
Your heart works around the clock—and so does your smart ring. QRing continuously monitors your heart rate during work, exercise, rest, and sleep, giving you a clearer picture of your cardiovascular wellness.
Designed for women who want a smarter way to manage their health, QRing helps track menstrual cycles and predicts upcoming periods based on your recorded data, making it easier to stay prepared every month.
Whether you're walking, running, cycling, or working out, QRing records your daily activity to help you stay motivated and achieve your fitness goals.
Quality sleep is the foundation of better health. QRing automatically tracks your sleep throughout the day and night, including daytime sleep for shift workers and naps, helping you understand your sleep habits and make meaningful improvements.
Bulky smartwatches press your wrist, catch sleeves and get in the way of daily work. Our smart ring sits lightly on your finger, zero weight burden, you barely feel its existence during work, cooking or driving.
Thick watch cases dig into your arm while sleeping, disrupting your rest. The slim smart ring fits snugly on your finger, no squeeze, no friction, track full sleep cycles comfortably all night.
Smartwatches slide loose during gym, swimming or yoga. This tiny smart ring stays firmly on your finger, IP68 fully waterproof, never slips off no matter intense your workout is.
You have to remove watches for shower, makeup, hand washing, and most smartwatch apps lock full health data behind monthly subscriptions. Our minimalist smart ring is invisible and hassle-free, keep it on all day without constant taking on and off, with absolutely no mandatory subscription fees to access all your health metrics.
Bulky smartwatches press your wrist, catch sleeves and get in the way of daily work. Our smart ring sits lightly on your finger, zero weight burden, you barely feel its existence during work, cooking or driving.
Thick watch cases dig into your arm while sleeping, disrupting your rest. The slim smart ring fits snugly on your finger, no squeeze, no friction, track full sleep cycles comfortably all night.
Smartwatches slide loose during gym, swimming or yoga. This tiny smart ring stays firmly on your finger, IP68 fully waterproof, never slips off no matter intense your workout is.
You have to remove watches for shower, makeup, hand washing, and most smartwatch apps lock full health data behind monthly subscriptions. Our minimalist smart ring is invisible and hassle-free, keep it on all day without constant taking on and off, with absolutely no mandatory subscription fees to access all your health metrics.
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WHAT'S INCLUDED
Premium Ceramic – Ultra lightweight, scratch-resistant & skin-friendlyaluminium
Free app with no subscription fees, ever
Personal wellness insights: vital patterns, SpO2, temperature
Step counter & calorie tracking built in
Full sleep architecture: deep, REM, light stages
Activity patterns for stress & recovery insights
Skin temperature trends for cycle & wellness awareness
Menstrual cycle & ovulation tracking for women
Koepovk Charging Case included
7-day battery life on a single charge
IP68 water & dust resistant — swim, shower, sauna
Compatible with all iOS & Android smartphones
Free size exchange if it doesn't fit
Get more for less. No subscriptions, no compromises.
| FEATURE | KR08 | BEST VALUE Touch Control Ceramic Smart Ring | O******g 4 |
|---|---|---|---|
| PRICE | $65.99 | $79.99 | $349 |
| SUBSCRIPTION | None | ✔None — Free forever | $5.99/mo |
| SPORTS MODES | 5 Modes | ✔100+ Modes | 100+ Modes |
| SLEEP TRACKING | Full stages + score | ✔Full stages + score | Full stages + score |
| DATA ACCURACY | Standard | ✔High Precision | High Precision |
| HEART RATE | 24/7 continuous | ✔24/7 continuous | 24/7 continuous |
| BATTERY LIFE | 4-6 days | 5-7 days | 5-8 days |
| TOUCH MODE | None | ✔Camera, Music, Touch | None |
| WATER RESISTANT | IP65 | ✔IP65 | 100m |
