Advantage:

1. Compact design, the host is worn on the patient's wrist, the blood oxygen probe is worn on the finger, the finger bears less force, and the comfort is high.

2. The product has low power consumption. The rechargeable 3.7V lithium battery can be used repeatedly.

3. Small size, light weight, easy to carry.

4. When no signal is generated, the product will automatically shut down.

5. Sleep monitoring system, which can display data on PC or mobile phone via Bluetooth.

6. Medical grade products, with medical device registration certificate.

Disadvantages: External blood oxygen probe, if necessary, select the appropriate blood oxygen probe.