Android X (11) is the strongest of the Androids alive. After Super 17 was defeated, some of Goku's SSJ4 blood rubbed off on him. With that blood, Dr. Myrioso was able to make the perfect Android. He may look weak, but he has a second form which is so powerful that the only people to defeat him are SSJ3 Vegito and SSJ4 Gogeta. He is one of the only 3 androids to be made by scratch. He causes havoc on Earth, leaving behind a destroyed planet. He is finally defeated by SSJ4 Gogeta's 100X Big Bang Kamehameha. He killed Myrioso. He was planned to be a good Android, but he became bad.
This form is very weak, about equal to what SSJ2 Goten would be. In this form he has light black hair, a coat, and green pants. The belt at the bottom is a energy sucker, which can suck up about as much energy as a 100X normal Kamehameha.
This form is catastrophic, stronger than a full powered SSJ4. Omega Shenron would be small to the form. His hair gradually grows, and now is multi-colored with red and silver. The number 11 is shown on his shirt and shoulder to show his original number. This form was achieved when a full power Super Final Flash, 10X Kamehameha, and Hyper Masenko was shot at him and he sucked all of the energy. He could not hold the power of a full-powered 100X Big Bang Kamehameha, and he was destroyed.