I decided to buy me the "new 3ds" because my old "3ds" began to severely tired. The difference between these two is obvious: the quality of the 3D image to the new is final! She is beautiful (even without the 3d)! 3d adapts the position of the face detected by the front camera, the revolution of the new! At first I had a little trouble to have on hand because some buttons changed places as "start-select" What are now instead of POWER her big sister under ABXY buttons (the HOME key is still in place)! Ignition (POWER) is on the bottom under "start-select" the new. For the new key, the C stick is not very sensitive to force worth it;) I had the opportunity to serve my Zelda majora's mask, very useful! The volume is adjusted more in the lower part of the next joystick console but on the top screen for the new. Another change is the insertion of the game cartridge is no longer on top of the console in the middle, but the bottom eccentric to the left for the new. The stylus is also no longer on top but down between the jack and the POWER! The new 3ds compared to its big sister is slightly long high not even 1 cm, otherwise the width remains the same.