Skip to content Home / Best Heart Rate Monitors Wellue O2Ring Activity & Fitness Tracker Review For pregnant women, the elderly, brainworker, people at high altitudes The lightest, smallest ring sensor for overnight continuous monitoring Durable and adapt to most fingers 24/7 O2 Level, heart rate, and body movements Unlimited storage space in the app. Built-in memory can store 4 groups of 10 hours of data Runs up to 16 hours on a single charge Professional PC report. It provides graphic sleep report and trends of health data, reviewing real-time data in the APP dashboard Unlimited sharing of PDF and CSV reports Save history data to your phone unlimitedly at no additional cost Identifies abnormalities in SP-O2 levels, heart rates and mark them in the report Alarm & beep for low O2 in device and app Turn on/off, adjust the threshold and intensity separately to fit your best Integration with Apple health Android and iOS compatible Free shipping
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