Oulencu enters the wearable health space with a focused approach. The Smart Ring (Size 6) skips the flashy screen and instead packs sleep and activity tracking into a discreet, lightweight ring. It’s designed for those who want health data without a bulky watch on their wrist.

The ring’s core strength is its sleep analysis. It breaks down your night into Deep, REM, Light, and Awake stages, then calculates a Sleep Index. This gives you a clear number to track trends, helping you see how your evening routine affects your recovery. The Movement Index tracks daily physical activity, counting steps and calorie burn. It pairs with both Android and iOS via Bluetooth. The 22 mAh battery lasts several days between charges, though you’ll need to remove it for charging.

At this price point, the ring lacks built-in GPS (it relies on your phone’s GPS for route tracking). The sensor data is useful for spotting patterns, not clinical-grade diagnostics. For someone looking to improve sleep hygiene and daily step counts with minimal wrist presence, this ring delivers a straightforward solution.