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The Tamagotchi Nano (たまごっちナノ) is a Tamagotchi released in Japan in 2010. It is based on the Tamagotchi Mini, Tamagotchi iD, and Tamagotchi iD L. Like the Mini, it was marketed not as a virtual pet, but rather as an accessory for the iD.

In addition to the two main versions of the Nano, it became a template for many licensed virtual pets from 2017 onward. These include the Pocket Usatama, the Gudetama Tamagotchi, Eevee x Tamagotchi, the Pocket Usapiyo, the Pac-Man Tamagotchi, the Evatchi, the Demon Slayer Tamagotchi, the Hello Kitty Tamagotchi, and the Extellatchi.


Diagram of a Nano.

The Tamagotchi Nano is a miniature virtual pet that measures at about 4 centimeters tall, or about 1.57 inches. It has a rounder, more egg-like shape, making it thicker than a normal Tamagotchi and slightly bigger than the Tamagotchi Mini. The front of the shell has a droplet-shaped frame around the screen, and the screen itself is deeply recessed into the body of the shell. Some first editions of the Nano also had a crystal-like front, which has not been used since. The battery panel has a rectangle with "cracked" patterns on the left and right side, and a pressure-sensitive tab beneath it. Pressing the tab with a small, pointed object will open it. Like the classic Tamagotchi, it takes two LR44 batteries.

All licensed variants use identical molding, with exceptions of the Pac-Man Tamagotchi and the Hello Kitty Tamagotchi; for them, the droplet frame and shell front are a single mold, making the gap between them thinner and allowing graphics to be printed over it. Additionally, with the exception of the Demon Slayer Tamagotchi, models released outside of Japan replace the pressure tab with a screw. From the Gudetama Tamagotchi onward, new Nano models have smaller pixels but a wider screen of 30x24 pixels.

The Nano comes in two versions, which are functionally identical but with different characters. The two versions are distinguished by the background print; the first version's background has a floral pattern at the upper right and bottom left corners of the screen, and the second version's has a wave pattern across the top and bottom halves of the screen. The prototype images of the second version on Bandai's site don't show this distinction. In addition, there are three shells exclusive to the Tamagotchi Department Store which have the store's logo as the background. None of the versions released afterward have had background prints.


Hatching and Growth

One minute after setting the clock, the egg will hatch into one of two babies. The Tamagotchi Nano has two growth stages; Baby and Adult. The baby stage is 24 hours long, while the Adult stage will continue until it leaves either due to neglect or reaches the end of its life span. Which adult character a baby becomes depends on which version the model is, the baby's gender, and the quality of care it is given. It can also evolve into a secret character if certain requirements are fulfilled.


Like the Mini, there are no on-screen icons, and therefore all information is conveyed through the screen and buttons. If the Tamagotchi needs something, the user can press the C button for an animation to see what it needs. If the Tamagotchi looks dizzy, it's hungry; if it looks away, it's unhappy.

If the user presses the C button when it doesn't need something, the Tamagotchi will perform a Close Up. It will also perform a Close Up on its own at 10:00 AM, 2:00 PM, and 6:00 PM each day.

Pressing the A button opens the main menu, with the options to feed or to play the minigame. The meal is a bowl of rice, and the snack is a candy. The A button is also used to clean up poo, cure sickness (Baby stage), or cheer up to alleviate sulking (Adult stage).


The minigame involves catching the letters that spell the word "TAMAGOTCHI" in order. Catching the wrong letter, or missing the right letter when it appears, will end the game. The player must successfully spell out "TAMAGOTCHI" twice for a perfect game.

Sickness and Sulking

During the baby stage, if the user fails to fill the Hungry and Happy meters, and allows poo to accumulate on the screen, the baby will get sick. Pressing the A button twice will cure the sickness. At the adult stage, neglecting in a similar manner will cause it to sulk, indicated by it facing away from the screen and three lines appearing at the top right of the screen. The player must press A twice to cheer the Tamagotchi up. In both instances, the user will not be able to feed, play the game, or clean up poo; the user may still switch to the clock or enable/disable sound.

Death and Departure

The Tamagotchi Nano has three different ending sequences:

  • Death: If the Tamagotchi is severely neglected during the baby stage, it will die, leaving an image of a tombstone and Obaketchi.
  • Running Away: If the Tamagotchi is severely neglected as an adult, it will run away with a suitcase, leaving a note that says "バイバイ..." ("Bye bye...").
  • Departure: If the adult Tamagotchi is given generally good care and enough care mistakes are made, the Tamagotchi will leave with a suitcase, with a note reading "またね!" ("See you!").

In all three cases, pressing A and C together will trigger a new fetus to appear.


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