DIZO Smart Watch 2, 1.69” (43mm) Fitness Tracker, 5ATM Swimming Waterproof, Blood Oxygen, Heart Rate and Sleep Monitor…

Amazon.com Price: $49.99 (as of 02/10/2022 13:07 PST- Details)

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Blood Oxygen Monitor (SpO2) : SpO2 is a major indicator of human health. That’s why our fully-upgraded watch includes an SpO2 measurement function. The DIZO fitness watch sensor gauges your blood oxygen saturation during the day and as you sleep to show how well your body is absorbing oxygen.
164 ft. (5ATM) Waterproof: You can swim, dive or surf without worries. Watch is 5ATM (equals to 164 ft. or 50 meters) Waterproof, which is way better than IPX8 or IP68.

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