This may not be a conventional wearable device but you can still carry it around easily. What’s neat about Wello is that it’s an iPhone case with hidden sensors. You just have to hold it the right way to start finding out more about your health. Wello tracks:
- Blood pressure
- Heart rate
- Blood oxygen
Wello comes with an add-on device that can test your lungs. The device is compatible with iPhone and Android. Its companion app helps you make better sense of the data Wello gathers. Sets you back $199.