在测试之前按图示佩戴手环，同时要将手环的屏幕朝上才可以，在测试时要静止

Before the test, wear the wristband as shown in the figure, and at the same time, the screen of the wristband should be facing upwards. During the test, it should be still and not moving. <br>After waiting for the test to start, the screen will display your blood oxygen saturation. Wait for the test to be completed. The entire test will take about one minute. After the test, the bracelet will vibrate to remind

Wear the bracelet as shown before the test, while facing up the screen of the bracelet, and do not move while still during the test.<br>After waiting to start the test, the screen will show its oxygen saturation, wait for the test to be completed, the whole test will take about a minute, after the test, the bracelet will vibrate alert.

Before the test, wear the bracelet as shown in the figure. At the same time, the screen of the bracelet should face up. During the test, it should be still and not move.<br>After waiting for the test to start, the screen will display your blood oxygen saturation. When the test is finished, the whole test will take about one minute. After the test, the bracelet will vibrate to remind you<br>