Unbranded Lefun Health Black Smart Ring Size 8 for Android & Ios Heart Rate Monitor

Lefun Health Black Smart Ring Size 8 for Android & Ios Heart Rate Monitor. This has never been used but it was charged to make sure it works and it charged perfectly (light turned from red to green). Manual says it has modes for heart rate, blood pressure, oxygen level, sleep, and steps. Stored in a smoke-free environment.