How to open and calibrate GT5 blood pressure?

This is a way to turn on the BP as follows
1. Open the "Wofit" APP--click device--find "Switch Setting" 2. Click "Switch Setting"--Open "Blood Pressure Test" to find the blood pressure monitoring interface on the smartwatch.3. Go back to the first interface of the smartwatch and swipe the screen to the left to find the blood pressure monitoring interface.
About calibrating GT5 blood pressure,
you can choose to save or discard the test results obtained through the app. (Private blood pressure mode switch is above the switch setting)
In addition, if you have the data of a professional blood pressure tester, it is recommended that you fill in the data in the APP, because they will be used as reference data for the wristband, and the monitoring data of the wristband will be more accurate.
Finally, please note that professional blood pressure monitors determine blood pressure values by squeezing blood vessels, while fitness bracelets estimate blood pressure values by collecting pulse waves at the wrist.

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Fitvii watch GT5 approved by fda

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FITVII WATCH GT5 APPROVED BY FDA