Скачать или смотреть M4 Smart Band Review | Accuracy Test | Comparison With Pulse Oximeter, BP Machine |m4 fitness band

Cheapest smart band M4 Smart Band Review, Accuracy Test and Comparison With Pulse Oximeter and BP Machine. M4 Fitness Band measures your heart rate, oxygen saturation level and blood pressure. does it really measures accurately? do watch this video to find out more about M4 smart watch.

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Timestamps
00:00 introduction M4 smart band.
00:45 M4 smart band Vs pulse oximeter / M4 smart band accuracy testing of pulse and oxygen level.
01:10 M4 smart band Vs BP machine / M4 smart band accuracy testing of blood pressure.
02:40 M4 smart band blood pressure testing.

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