Yes, some smartphones can now check your oxygen levels using a built-in sensor or a specific app. Researchers have shown that smartphones can detect blood oxygen saturation levels down to 70% using the phone's camera and flash.
- How it works: These apps utilize the phone's camera and flash to shine light through your finger and measure how much light is absorbed. The amount of light absorbed corresponds to the amount of oxygen in your blood.
- Accuracy: Some studies suggest these smartphone apps can be as accurate as traditional pulse oximeters. However, it is important to note that these apps are still under development, and their accuracy can vary depending on the phone model, app, and individual user.
- Limitations: It is important to remember that these smartphone apps should not be used as a substitute for medical advice. If you have concerns about your oxygen levels, consult a doctor.
