Here is the first SonarPen Android demo, it runs on my Samsung Note 8 (Android 7.0) and will be backward compatible with smart devices running on Android 4.4. The demo shows 8 pressure levels detection with the SonarPen. Don’t worry, this is just the first beta and the final product will have comparable performance as supported by iOS devices.

https://www.instagram.com/p/Bj8s95znj6m/