
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 QALO QRNT Original Smart Ring is a health-tracking smart ring designed with everyday people in mind and built with a snug fit to ensure accurate sensor readings and consistent performance. If you are between sizes, we recommend sizing up at least one full size and considering natural finger swelling and knuckle size for comfortable 24/7 wear. No matter where you are in your fitness, wellness, or health journey, QRNT can help you make measurable progress and be a little better tomorrow.

Apple Watch Series 8 features advanced health sensors and apps, so you can take an ECG¹, measure heart rate¹ and blood oxygen², and track temperature changes³ for advanced insights into your menstrual cycle⁴. And with Crash Detection, sleep stages tracking, and advanced workout metrics, it helps you stay active, healthy, safe, and connected. See Dimension section below for band sizing information.

Featuring a stainless steel design, the Venu 4 GPS smartwatch provides advanced features you need — all on a bright, colorful display — to better understand your body and promote a healthier lifestyle. Keep pushing day after day with up to 10 days of battery life. Body Battery energy monitoring tracks your body’s energy levels to find the best times for activity and rest. Help improve the quality of your sleep with personalized sleep metrics, including the sleep alignment feature to understand if you’re in sync with your internal cycle. The health status feature looks for changes in your health data that could indicate added stress to your body, so you can know when you’re trending away from your usual range. Make every activity count using personalized Garmin Coach training plans for running, cycling, strength and fitness. And switch up your activities with easy-to-follow animated workouts, daily suggested workouts and more than 80 built-in sports apps — including for active wheelchair users. Log custom or preset daily behaviors — such as caffeine and alcohol intake — to view reports in the Garmin Connect smartphone app on how your lifestyle choices may impact your overall health. All smartwatch data presented is intended to be a close estimation of the metrics tracked. Plus, make and take calls right from your wrist when paired to your smartphone.
| Pros for QALO - QRNT Slim Smart Ring – Snug Fit – Size Up – Size 12 - Gold - (2025) | |||
|---|---|---|---|
| There were no pros for this product— | There were no pros for this product— | There were no pros for this product— | Overall Performance, Battery Life, Features |
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 bought this to test out smart rings and i love it. I track my steps and sleep daily, even hourly, and monitor my daiky routine and this has made me much more aware and active! The ring lasts 8-9 days and it only takes 2-3 hours ro recharge it for the next week. The app is great and informative and I absolutely love this Qalo product! The ring covers are also a great feature to wear when working out and swimming.
This review is from QALO - QRNT Slim Smart Ring – Snug Fit – Size Up – Size 6 - Gold - (2025)
TheThilgenator Posted
Received in time but have not been able to recharge after first use .. waste of my money since they say it’s beyond the returnable time and I’ve had it less than 30 days. Tried to get online help from Best Buy with no success. Also contacted the vendor with no response at the time as well.
This review is from QALO - QRNT Slim Smart Ring – Snug Fit – Size Up – Size 7 - Gold - (2025)
ScifiHelen Posted
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 – Size 8 - Gold - (2025)
JanettaP Posted