For the heart rate sensor, you can set it to test all day or test if you want to know the rate.
The setting is located in the Haylou Fun App - Home - My Smart Device - Click on My Device - Heart Rate Monitor - Automatic/Manual
For blood oxygen, you can always test them if you want to know.
For the heart rate and blood oxygen data, the curve is on the Haylou Fun APP - home page. The maps are on the home page.
Please watch and try.