Milavan’s smart ring is a minimalist approach to health tracking. It consolidates heart rate, blood oxygen, and sleep monitoring into a slim titanium band you can actually forget you’re wearing. This is continuous, passive data collection without a wristband.

The sensors take a reading every 30 minutes, building a daily graph of your vitals in the companion app. The 0.06 MB of onboard storage is just enough to hold a day’s data before syncing to your phone. Battery life from the included cell lasts about a week, so you’re not constantly charging it. In practice, the ring is best for spotting trends in your resting heart rate and overnight blood oxygen levels, not for medical-grade precision.

Order the sizing kit. Finger fit is critical for the optical sensors to work consistently, and a loose ring will give you spotty data. While it tracks basic activity, don’t expect GPS or detailed workout modes. For a discreet, all-day wellness snapshot, it delivers.