The Gudetama Tamagotchi retains the same size screen and shell-like its predecessor. However, there has been an increase in pixel resolution. Previously, it was 24×24 pixels and the new one has 30×24 pixels. It is believed that the same design might continue on the Eevee X Tamagotchi.
As sad, the design is almost the same as in previous releases. On the Japanese version, you can find that the Gudetama consists of a battery panel along with the pressure tab. However, on the English version, you get to see a different panel. A screw replaces the pressure tab.