Watermelon prober  A new application launched last week on Android phones, the user can know if the melon mature or not by placing the phone on the fruit, and then press it twice a little every second, and wait a moment and then get the result.
Watermelon prober
Watermelon prober
The application depends on the measurement of the amount of water inside the watermelon determined by the sound analysis of the watermelon pressure, since the amount of water within the melon mature is different from those in the melon, which is not yet mature.

 You can find app here