Meet QRNT Slim, the next-generation Smart Ring by QALO. QRNT (pronounced “current”) stands for QALO Ring with NanoTechnology, and it’s equipped with 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 your progress is 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.