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| Thumby Programmable Game Console Keychain – Retro Gaming Fun Mini-Console, STEM Learning, USB Rechargeable, 5 Preloaded Games (Teal)
TinyCircuits

| Thumby Programmable Game Console Keychain – Retro Gaming Fun Mini-Console, STEM Learning, USB Rechargeable, 5 Preloaded Games (Teal)

Bottom line: The | Thumby Programmable Game Console Keychain – Retro Gaming Fun ($23.96 on Amazon as of 2026-10-06): Programmable in MicroPython from a free browser editor, no install; main trade-off: 40 mAh battery gives only about 2 hours per charge.

$23.96

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Buy on Amazon — $23.96 Compare to similar retro consoles

By , Founder & Editor-in-Chief · Listing data updated

Mike Perry — Hardware researcher since 2014. For retro consoles and console accessories, synthesises manufacturer documentation, community compatibility lists and marketplace listings rather than first-hand lab testing. Core beat: GPU performance across gaming, rendering, and local-LLM inference.

*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.

Pros & Cons

Pros

  • ✓ Programmable in MicroPython from a free browser editor, no install
  • ✓ Five retro games preloaded, playable out of the box
  • ✓ Six tactile controls plus OLED in a true keychain footprint
  • ✓ Link cable supports two-player Pong and Tennis with a second unit

Cons

  • ✗ 40 mAh battery gives only about 2 hours per charge
  • ✗ Micro-USB charging, not USB-C
  • ✗ Multiplayer link cable sold separately
  • ✗ Tiny OLED and 6 buttons limit game complexity

Manufacturer description

The Thumby by TinyCircuits packs a full programmable game console into a keychain barely larger than a house key. Six tactile controls and a tiny OLED screen give you five preloaded retro games out of the box, so there is something to play the moment you unbox it. What separates this mini-console from a novelty keyring is the coding side: you write games in MicroPython through a free browser editor, with no software to install, which makes it a genuine STEM learning tool for classrooms and self-taught beginners alike. Load your own games, animations, or Thumby Animator drawings over USB, and…

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SpecPicks Verdict

SpecPicks scored | Thumby Programmable Game Console Keychain – Retro Gaming Fun… using a rating × review-volume × price-fit model applied to published specs and reviews across the retro consoles category. TinyCircuits's retro consoles lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for retro consoles of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Frequently Asked Questions

Can you actually program your own games on the Thumby?

Yes. You write games in MicroPython using TinyCircuits' free browser-based editor, so there is no software to install. Finished games, animations, or Thumby Animator drawings upload over USB.

How long does the Thumby battery last?

The built-in 40 mAh Li-Po battery runs about 2 hours of gameplay per charge. It recharges with any micro-USB cable, so you can top it up from a phone charger or laptop port.

How many games come on the Thumby out of the box?

Five retro games are preloaded. Beyond those, you can upload additional games from the Thumby community library or write your own in MicroPython and transfer them via USB.

Can two people play together on Thumby?

Yes. Two Thumby consoles link together for shared gameplay such as Pong or Tennis. The link cable is sold separately, so budget for a second console and the cable.

Is the Thumby a good gift for a kid learning to code?

It is aimed at beginners and educators: MicroPython in a browser editor means no setup barrier. It doubles as a keychain toy and a STEM project.

Key Features

  • PLAY ANYTIME, ANYWHERE – Ultra‑mini keychain game console with 6 tactile controls and OLED display ready with 5 built‑in retro games; portable nostalgia in your pocket.
  • EASY PROGRAMMING – Learn coding using MicroPython via free browser editor; no software install required, perfect for beginners and educators.
  • ADD, UPLOAD & SHARE – Expand the fun: load new games, animator drawings, or animations via USB; join the vibrant Thumby community.
  • MULTIPLAYER FUN WITH FRIENDS – Link two Thumby consoles (cable sold separately) for simple, shared gameplay like Pong or Tennis.
  • RECHARGEABLE & BUILT TO LAST – Includes a 40 mAh Li‑Po battery for around 2 h of gameplay; charges with any micro‑USB cable, durable polycarbonate build.

Full Specifications

Size1.2 inches x 0.7 inches x 0.3 inches
BrandTinyCircuits
ColorGray, Clear, Pink, Teal
ThemeRetro
PlatformElectronic Game
Set NameTeal
Form FactorHandheld
Screen Size0.3 inches
ConnectivityUSB
Display TypeOLED
Model NumberASK4003-T
Power SourceBattery Powered
Material TypePlastic
Item Type NamePlayable, Programmable Keychain
Operation ModeManual
Controller TypeButton Control
Item Dimensions1.2 x 0.7 x 0.3 inches
Number of Items1
Number of PlayersMultiplayer
Hardware InterfaceUSB

Ready to buy?

| Thumby Programmable Game Console Keychain – Retro Gaming Fun Mini-Console, STEM Learning, USB Rechargeable, 5 Preloaded Games (Teal) is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

Buy on Amazon — $23.96

*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.

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| Thumby Programmable Game Console Keychain – Retro Gaming Fun Mini-Console, STEM Learning, USB Rechargeable, 5 Preloaded Games (Teal)
$23.96
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