Device comparison

Game Kiddy GKD Bubble vs. MagicX Zero 40

Compare specs, emulation support, community reviews, ownership, and play history.

Compare

With

GKD Bubble
Zero 40

Shown to scale from each device’s real-world dimensions.

Quick verdict

Best value
Zero 40
More portable
Zero 40
Newer model
Zero 40

Main differences

  • MagicX Zero 40 has similar emulation coverage to Game Kiddy GKD Bubble.
  • MagicX Zero 40 is about $10 cheaper based on catalog pricing.
  • Game Kiddy GKD Bubble is roughly 4% smaller and 25% lighter.
  • MagicX Zero 40 runs Android 10; Game Kiddy GKD Bubble runs Linux.
  • MagicX Zero 40 is highlighted for DS, GBA, Game Boy, NES; Game Kiddy GKD Bubble is highlighted for N64, PS1, GBA, SNES.

Game Kiddy

GKD Bubble

Details
Price
$85
OS
Linux
Released
Oct 2024
Up to
Dreamcast
Screen
3.5 inch IPS
Weight
227 grams

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Specs

BetterWorse

SpecGKD BubbleZero 40
Price$85$75
OSLinuxAndroid 10
Screen3.5 inch4.0 inch
Aspect ratio4:33:5
Resolution640 x 480480 x 800
ChipsetRockChip RK3566Allwinner A133 Plus
CPUCortex-A55Cortex-A53
GPUMali-G52 2EEPowerVR GE8300
RAM1 GB LPDDR42 GB DDR4
Battery4000 mAh4300 mAh
Weight227 grams182 grams
Dimensions166.8 mm x 82 mm x 24 mm136 mm x 105 mm x 17 mm
Video outYesNo
Hall effect sticksNoYes
Touch screenNoYes

Emulation

Excellent › Good › Playable › Limited › Unsupported

SystemGKD BubbleZero 40
Classic systems
Game Boy
NES
Genesis
GBA
SNES
PS1
Mid-generation systems
DS
N64
Dreamcast
PSP
Saturn
Sixth-generation systems
GameCube
Wii
PS2
Modern systems
3DS
Switch
Wii U
PS3

Emulation source notes

  • GKD Bubble DS: Nintendo DS: Almost all games playable at full speed without frameskip This device does not have a touchscreen, so you won't be able to play DS games that rely heavily on the touchscreen
  • Zero 40 DS: Nintendo DS: Almost all games playable at full speed without frameskip The aspect ratio of the Touch Zero screen's is ideal for DS, with each screen being 2.6"
  • GKD Bubble 3DS: Nintendo 3DS: Only the easiest to emulate games are barely playable 3DS will only work on Android, not Linux
  • Zero 40 3DS: Nintendo 3DS: Either cannot run any games at all or games are unplayably slow
  • GKD Bubble GBA: Nintendo Game Boy Advance: Almost all games playable at full speed without frameskip
  • Zero 40 GBA: Nintendo Game Boy Advance: Almost all games playable at full speed without frameskip
  • GKD Bubble N64: Nintendo 64: Most games playable at full speed, a few games have lower frame rates but still mostly playable with frameskip
  • Zero 40 N64: Nintendo 64: Most games playable at full speed, a few games have lower frame rates but still mostly playable with frameskip
  • GKD Bubble NES: Nintendo Entertainment System: Almost all games playable at full speed without frameskip
  • Zero 40 NES: Nintendo Entertainment System: Almost all games playable at full speed without frameskip
  • GKD Bubble PS1: Sony Playstation: Almost all games playable at full speed without frameskip
  • Zero 40 PS1: Sony Playstation: All games playable at full speed without frameskip
  • GKD Bubble PS2: Sony Playstation 2: Only the easiest to emulate games are barely playable PS2 will only work on Android, not Linux
  • Zero 40 PS2: Sony Playstation 2: Either cannot run any games at all or games are unplayably slow
  • GKD Bubble PS3: Sony Playstation 3: Either cannot run any games at all or games are unplayably slow
  • Zero 40 PS3: Sony Playstation 3: Either cannot run any games at all or games are unplayably slow
  • GKD Bubble PSP: Sony Playstation Portable: Most games playable at full speed, a few games have lower frame rates but still mostly playable with frameskip
  • Zero 40 PSP: Sony Playstation Portable: Most games playable at full speed, a few games have lower frame rates but still mostly playable with frameskip
  • GKD Bubble Wii: Nintendo Wii: Either cannot run any games at all or games are unplayably slow
  • Zero 40 Wii: Nintendo Wii: Either cannot run any games at all or games are unplayably slow
  • GKD Bubble SNES: Super Nintendo Entertainment System: Almost all games playable at full speed without frameskip
  • Zero 40 SNES: Super Nintendo Entertainment System: Almost all games playable at full speed without frameskip
  • GKD Bubble Wii U: Nintendo Wii U: Either cannot run any games at all or games are unplayably slow
  • Zero 40 Wii U: Nintendo Wii U: Either cannot run any games at all or games are unplayably slow
  • GKD Bubble Saturn: Sega Saturn: Most games playable but mostly with frameskip, struggles with harder to emulate games
  • Zero 40 Saturn: Sega Saturn: Most games playable but mostly with frameskip, struggles with harder to emulate games
  • GKD Bubble Switch: Nintendo Switch: Either cannot run any games at all or games are unplayably slow
  • Zero 40 Switch: Nintendo Switch: Either cannot run any games at all or games are unplayably slow
  • GKD Bubble Genesis: Sega Genesis / Mega Drive: Almost all games playable at full speed without frameskip
  • Zero 40 Genesis: Sega Genesis / Mega Drive: Almost all games playable at full speed without frameskip
  • GKD Bubble Game Boy: Game Boy / Game Boy Color: Almost all games playable at full speed without frameskip
  • Zero 40 Game Boy: Game Boy / Game Boy Color: Almost all games playable at full speed without frameskip
  • GKD Bubble GameCube: Nintendo GameCube: Only the easiest to emulate games are barely playable
  • Zero 40 GameCube: Nintendo GameCube: Only the easiest to emulate games are barely playable
  • GKD Bubble Dreamcast: Sega Dreamcast: Most games playable at full speed, a few games have lower frame rates but still mostly playable with frameskip
  • Zero 40 Dreamcast: Sega Dreamcast: Most games playable at full speed, a few games have lower frame rates but still mostly playable with frameskip

Frequently asked

What's the difference between the Game Kiddy GKD Bubble and the MagicX Zero 40?
MagicX Zero 40 has similar emulation coverage to Game Kiddy GKD Bubble. MagicX Zero 40 is about $10 cheaper based on catalog pricing. Game Kiddy GKD Bubble is roughly 4% smaller and 25% lighter. MagicX Zero 40 runs Android 10; Game Kiddy GKD Bubble runs Linux. MagicX Zero 40 is highlighted for DS, GBA, Game Boy, NES; Game Kiddy GKD Bubble is highlighted for N64, PS1, GBA, SNES.
Which is cheaper, the Game Kiddy GKD Bubble or the MagicX Zero 40?
The MagicX Zero 40 is the cheaper of the two at around $75, roughly $10 less than the Game Kiddy GKD Bubble based on catalog pricing.
Which is newer, the Game Kiddy GKD Bubble or the MagicX Zero 40?
The MagicX Zero 40 is the newer model, released in 2025.

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