WNRTSA’s smart ring is a minimalist approach to health tracking. It moves the sensors from your wrist to your finger, a location that can provide more consistent heart rate and blood oxygen readings. The ring itself is surprisingly thin and light, designed to be forgotten during the day.

The ring tracks your heart rate, blood oxygen saturation, sleep stages, and daily steps, syncing data to a companion app. There’s no subscription fee to access your historical data, which is a clear benefit. The internal 128MB of storage holds about a week’s worth of information before you need to sync. Its battery lasts roughly five to seven days on a charge, and it recharges fully in about an hour.

The ergonomic, curved interior is comfortable for 24/7 wear. Just note the companion app and its analytics are functional rather than polished. For the price, it delivers core health metrics without the bulk of a wristband, but don’t expect the deep ecosystem of a major wearable brand.