The pocket-size keychain Tamagotchi — simpler, collectible, and endlessly re-themed, from Pac-Man to Hello Kitty.
What Is the Tamagotchi Nano?
The Tamagotchi Nano is the tiny, single-screen keychain version of Tamagotchi — about 1.5 inches (4 cm) tall, designed as an accessory you clip to a bag and check throughout the day. It’s deliberately the simplest Tamagotchi on the market, which makes it the easiest entry point for newcomers and the most collectible format for fans.
“Nano” is really a whole line rather than one toy. The same little hardware is constantly re-skinned into licensed editions — Pac-Man, Demon Slayer, Eevee, Gremlins, Jurassic Park, Hello Kitty, Sanrio, Star Wars and many more — each with its own exclusive cast of characters. New editions launch and sell out continuously, which is a big part of the fun (and the collecting).
How It’s Different From a Full-Size Tamagotchi
If you’ve raised a full-size Tamagotchi, the Nano is a stripped-down cousin:
- No connecting: there’s no infrared or app — a Nano can’t link to other devices, visit friends, or marry. It’s a solo pet.
- No status icons: the screen has no menu icons. Instead of bars and symbols, your pet shows you how it feels through animations.
- Two growth stages (baby → adult) instead of the full baby → child → teen → adult path.
- A small, edition-specific cast rather than 50+ characters — usually a handful per version.
- No discipline, money, or shop — care comes down to feeding, playing, and cleaning.
The Growth Chart: Baby to Adult
The egg hatches about a minute after you set the clock into one of two babies. The baby stage lasts about 24 hours, then it evolves into an adult that stays until it eventually leaves you.
Which adult you get depends on three things: which version of the edition you have, your pet’s gender, and your quality of care. Most editions ship in two versions with different character sets, and many hide a secret character you can unlock by meeting specific care conditions. (Character counts are edition-specific — the Demon Slayer Nano, for example, advertises 18 characters including 3 new ones.)
There are three ways your time together can end, and they reflect your care:
| Ending | What happened |
|---|---|
| Departure (“See you!”) | Good-enough care with only a few mistakes — it grows up and moves on. |
| Running away (“Bye bye…”) | An adult that was badly neglected packs a suitcase and leaves. |
| Death | Severe neglect during the baby stage — a tombstone appears. |
However it ends, press A + C to start a fresh egg.
How Care Works
The Nano tracks just two needs — Hungry and Happy (four units each) — but since there are no on-screen icons, you read your pet by watching it.
- Check on it: press C for a close-up animation. Looking dizzy means it’s hungry; looking away means it’s unhappy. It also does its own close-up at 10 AM, 2 PM, and 6 PM.
- Feed (A menu): a meal (rice) fills a Hungry unit; a snack (candy) fills a Happy unit. It won’t overeat meals, but too many snacks aren’t good for it.
- Clean: poop appears through the day — press A to clean it up.
- Sleep: babies sleep at 8 PM, adults at 10 PM, and both wake at 7 AM. Turn the lights off when it sleeps.
- Sick or sulking: a neglected baby gets sick and a neglected adult sulks (turns away). Press A twice to cure or cheer it up — you can’t feed or play with it until you do.
The Mini-Game
The Nano has one game, opened from the A menu: catch the falling letters that spell “TAMAGOTCHI” in order. Grab a wrong letter or miss the right one and the game ends. Catch at least five letters to fill a Happy heart; spell the whole word twice for a perfect game and an extra heart.
Buying Guide: Editions, Price & Where to Find It
Standard mono-screen Nano editions run about $16–20 and are sold just about everywhere — Amazon, Bandai’s shop, Premium Bandai, and big-box toy retailers, with specialty importers carrying Japan-exclusive editions.
The key thing to know is that editions rotate constantly — there have been 38+ versions, more than any other Tamagotchi format — and each licensed drop carries its own exclusive characters and often sells out, so buy the theme you love when you see it. There’s also a pricier color offshoot, the Tamagotchi Nano Colorful (color screen, rechargeable, ~$49–60), which is mostly limited to Japanese collaborations.
At a Glance
| Feature | Details |
|---|---|
| Format | Mini keychain virtual pet (~1.5 in / 4 cm) |
| Growth stages | Two (baby → adult) |
| Characters | Edition-specific; small exclusive cast + a secret character |
| Connectivity | None (solo pet) |
| Mini-game | One — catch the “TAMAGOTCHI” letters |
| Difficulty | Easy — the simplest Tamagotchi |
| Price | ~$16–20 (Color editions ~$49–60) |
| Availability | Sold everywhere; licensed editions rotate constantly |
Want a Tamagotchi you can connect and breed? See the 2024 Connection re-release or the classic Gen 1 and Gen 2 re-releases. For the franchise’s newest full-featured device, explore our complete Tamagotchi Paradise guides.