OPPO Watch 2 pressure measurement function: OPPO Watch 2 pressure measurement is converted by calculating your heart rate variability (HRV). The statistics of heart rate variability need to be measured by the PPG sensor of the watch, so when measuring pressure, the green sensor on the back of the watch will be turned on.
Setting method: After the watch is normally connected to the mobile phone, enter the watch menu interface in full intelligent mode, open the "Stress" APP (smiley face icon), and follow the instructions on the page.