I believe it will connect with devices using Android 4.0 and up (with Bluetooth, of course) but check that with Omron. You can see your readings displayed as a list with times an dates or as a multi-colored graph. The unit will store up to 100 readings for each of 2 users but I'm not sure how many readings the app will store or display on the Android device. It's actually quite useful because you can share the readings history when you visit your doctor, without having to keep a written record.