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Meet QRNT Slim, the next-generation Smart Ring by QALO. Important Fit Note: QRNT Slim is designed with a snug fit to ensure optimal sensor accuracy and all-day performance. If you are between sizes, we strongly recommend sizing up at least one full size and accounting for natural finger swelling and knuckle size, especially if you plan to wear your ring 24/7. QRNT (pronounced “current”) stands for QALO Ring with NanoTechnology, and it features upgraded, ultra-precise sensors that deliver more health-tracking power in a 25% thinner, featherlight ring you’ll barely notice you’re wearing. With QRNT Slim, you can track key health metrics including sleep, stress, movement and workouts, heart rate variability (HRV), oxygen saturation (SpO2), skin temperature, women’s health, and more, all monitored in the free and secure QALO app designed to be empowering without ever feeling overwhelming. Access to the app is completely free with no subscription charges, and QRNT Slim is compatible with both Android and iOS devices.
Q: If I order a Qalo qrnt ring and it does not fit properly can I return it for the right size?
A: Yes, you can return within 15 days QRNT Slim has a snugger fit. If between sizes, it's recommended to size up. Remember to accommodate for swelling and knuckle size.

Meet QRNT Slim, the next-generation Smart Ring by QALO. Important Fit Note: QRNT Slim is designed with a snug fit to ensure optimal sensor accuracy and all-day performance. If you are between sizes, we strongly recommend sizing up at least one full size and accounting for natural finger swelling and knuckle size, especially if you plan to wear your ring 24/7. QRNT (pronounced “current”) stands for QALO Ring with NanoTechnology, and it features upgraded, ultra-precise sensors that deliver more health-tracking power in a 25% thinner, featherlight ring you’ll barely notice you’re wearing. With QRNT Slim, you can track key health metrics including sleep, stress, movement and workouts, heart rate variability (HRV), oxygen saturation (SpO2), skin temperature, women’s health, and more, all monitored in the free and secure QALO app designed to be empowering without ever feeling overwhelming. Access to the app is completely free with no subscription charges, and QRNT Slim is compatible with both Android and iOS devices.

The RingConn® Gen 2 redefines health tracking. It is a full-featured smart ring designed for seamless, everyday wear. The digital ring offers automatic sleep apnea monitoring to help you optimize rest and an ultra-slim, lightweight build that merges comfort with style. You also get an impressive 10 to 12 days of battery life (up to 150 days with its portable charging case), quick charging, and with our RingConn® EcoPower technology, we've refined optical pathways and enhanced algorithms to achieve reduced power consumption while maintaining familiar performance levels. Best of all, you’ll get comprehensive monitoring with no subscription fees. Please note - before you order, be sure to review the Sizing Guide, as seen in the images section, as RingConn® ring sizes are different than those used in the US. Or better yet, size before you buy so you’ll know for sure - order the Gen 2 Ring Sizing Kit first, sold separately.

Galaxy Watch8 Classic is more than a watch- it’s an elegant timepiece with traditional style that helps keep your day on track. Now brighter and incredibly comfortable, it’s the perfect blend of fashion and function that offers enhanced performance without compromise. Backed by Galaxy AI, this watch does more than track- it understands and helps you act. Wake up to meaningful sleep insights, not just data- because when your sleep improves, so does everything else. Then confidently head out the door with quick briefings on weather, sports scores and more, all at a glance on your Watch screen. You can also send texts and knock out multiple tasks while you walk with an assistant you activate by raising your wrist. Whether you’re focused on productivity, health or performance, Watch8 Classic fits better, lasts longer and helps you get the most out of every day. Galaxy Watch8 Classic redefines what a timepiece can do.

Oura Ring 4 brings you closer to what matters most — your health. With an updated all-titanium design, this smart ring features Smart Sensing, a new sensing platform that doesn’t just measure your biometrics but also adapts to you. It provides insights into over 50 biometrics including sleep, readiness, activity, heart health, stress, metabolic health and women’s health.
| Pros for QALO - QRNT Slim Smart Ring – Snug Fit – Size Up if Between Sizes – Size 11 - Silver - (2025) | |||
|---|---|---|---|
| There were no pros for this product— | There were no pros for this product— | Design, Overall Performance, Battery Life, Comfort, Features | Overall Performance, Comfort, Battery Life, Design, Sleep Tracking |
| Cons for QALO - QRNT Slim Smart Ring – Snug Fit – Size Up if Between Sizes – Size 11 - Silver - (2025) | |||
| There were no cons for this product— | There were no cons for this product— | Band Quality | Scratch Resistance, Size, Connectivity |
The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.
I have enjoyed my "current" smart ring. There are times that I don't want to wear my @pple w@tch- I am a Swatch watch collector- and the Slim QRNT gives me a good alternative to collect my health data.
This review is from QALO - QRNT Slim Smart Ring – Snug Fit – Size Up if Between Sizes – Size 8 - Gold - (2025)
JanettaP Posted