1998 •Super Nintendo
Zoo-tto Mahjong! is a Nintendo developed and published Super Famicom video game. It was released on July 1, 1998. It is a simple game of Mahjong, of w...
GPM280 CM3 by WaveShare, priced around $150, Horizontal retro handheld, running Linux (RetroPie), Recalbox, with a 2.8 inch display
59 of 65 catalogued fields are filled in for this handheld. Anything the catalogue has not recorded is labelled Not documented rather than estimated.
Marketplace rows use affiliate-friendly links where available. Average price stays based on the console database, not live per-store pricing.
| Store | Price |
|---|---|
|
Amazon
Amazon search results
|
$150 |
|
WaveShare
Imported from spreadsheet hyperlink
|
$150 |
|
Aliexpress
Imported from spreadsheet hyperlink
|
$150 |
|
Alibaba
Alibaba search results
|
$150 |
Affiliate disclosure and terms are linked in the footer.
Broad emulation range
GPM280 CM3 lands in a crowded lane, which is exactly why the comparison with Retro CM3, GPM280 CM4, and Super PocketGo CM3 matters so much.
GPM280 CM3 is not trying to win every argument at once; its appeal lives in the balance between emulation comfort, day-to-day usability, and whether its price still feels sane.
Before the review gets opinionated, here is the clean spec picture. This table is the reality check that keeps the rest of the write-up grounded.
| Category | Details |
|---|---|
| Brand | WaveShare |
| Release | 2020 / 12 |
| Form factor | Horizontal |
| Operating system | Linux (RetroPie), Recalbox |
| Overall performance | 8/10 · A- |
| SoC | Broadcom BCM2837 (Raspberry Pi Compute Module 3+ Lite) |
| CPU | Cortex-A53, 4 Cores, and 1.2 GHz |
| GPU | Broadcom VideoCore IV and 250 MHz |
| RAM | 1 GB DDR2 |
| Display | 2.8 inch, IPS, and 60 Hz |
| Resolution | 640 x 480, 4:3, and 285.71 PPI |
| Battery and cooling | 1500 mAh and Ventilation cutouts |
| Storage and I/O | External MicroSD, Micro USB, and 3.5mm Headphone |
| Price | $150 |
If this review pulls you in, the fastest next rabbit hole is Retro CM3 and GPM280 CM4, because those are the products most likely to clarify whether GPM280 CM3 is your real match or just your current curiosity.
GPM280 CM3 pairs the hardware with 2.8 inch, IPS, 60 Hz, 640 x 480, 4:3, and 285.71 PPI. That is the kind of detail stack retro buyers should linger on, because a handheld can be technically capable and still feel wrong if the aspect ratio, sharpness, and scaling story are off. The screen protection is listed as Tempered Glass (OCA Laminated), a small clue that often hints at how polished or rough the front face might feel in daily use.
The controls are described with Cross Upper placement, 4 Buttons, L1, R1, and Volume +-. That matters more than many spec sheets admit, because the difference between a fun handheld and a fatiguing one often shows up in the D-pad, shoulder shape, and how naturally the thumbs settle into place. If the screen is what sells a handheld in screenshots, the controls are what decide whether it earns repeat sessions.
The 4:3 aspect ratio adds another layer to the story. The right screen is not always the fanciest one. Sometimes it is the one that makes your core library look natural instead of merely possible.
GPM280 CM3 is best framed as a machine for players who want a balanced handheld that can stretch beyond the basics. The smartest handheld purchases usually happen when the buyer matches the hardware to a play style instead of falling for the loudest marketing line.
The horizontal shape matters here because it changes comfort, portability, and the kind of nostalgia the device leans into. The fact that it runs Linux (RetroPie), Recalbox also affects what kind of setup work, app ecosystem, and tinkering ceiling buyers should expect.
The release timing listed as 2020 / 12 helps place it in context. Context matters because buyers are not comparing isolated products; they are comparing moments in the market.
GPM280 CM3 is described with battery: 1500 mAh and cooling: Ventilation cutouts. Those are not background details; they shape noise, comfort, endurance, and whether the device feels eager to be used or mildly exhausting to keep fed. Audio is covered by Single Mono Front facing and 3.5mm Headphone, which matters for sofa play, travel, and late-night sessions when speakers and headphone output can quietly make or break the experience.
Physically, the device is outlined by 136.4 mm x 67.5 mm x 16.8 mm, Plastic, and Famicom Gold/Red. This is where you start picturing whether it is truly pocketable, only jacket-safe, or clearly a bag companion. A handheld is only as portable as the friction it introduces. Too heavy, too hot, too awkward, and even strong specs start feeling theoretical.
The practical I/O story includes External MicroSD, WiFi, and Micro USB. These details matter because many retro buyers are also collectors, tinkerers, dock-and-TV players, or people with large libraries that need sensible storage and transfer options.
| Console | Angle | Price | Performance | Why Click Through |
|---|---|---|---|---|
Retro CM3 KinHanK | Closest Match | $150 | 8/10 · A- | horizontal layout, tracked around $150, rated 8/10 · A-. |
GPM280 CM4 WaveShare | More Powerful | $150 | 10/10 · A+ | horizontal layout, tracked around $150, rated 10/10 · A+. |
Super PocketGo CM3 Game Case | Closest Match | $155 | 8/10 · A- | horizontal layout, tracked around $155, rated 8/10 · A-. |
Retro GP430 KinHanK | Closest Match | $145 | 8/10 · A- | horizontal layout, tracked around $145, rated 8/10 · A-. |
GPM280 CM3 becomes much easier to judge once it is forced into the same room as Retro CM3, GPM280 CM4, and Super PocketGo CM3. This is where a vague impression turns into a real buying decision, because each nearby rival throws a different kind of pressure on the table.
GPM280 CM3 versus Retro CM3 is interesting because closest match is the obvious angle. Compared with GPM280 CM3, Retro CM3 makes the more obvious play for readers who care about closest match. Retro CM3 is tracked around $150. Its overall rating is 8/10 · A-. That said, gPM280 CM3 versus GPM280 CM4 is interesting because more powerful is the obvious angle. GPM280 CM4 sits close enough to GPM280 CM3 to make the comparison meaningful, but different enough to sharpen the buying decision. GPM280 CM4 is tracked around $150. From another angle, its overall rating is 10/10 · A+. In practice, gPM280 CM3 versus Super PocketGo CM3 is interesting because closest match is the obvious angle. If GPM280 CM3 feels almost right but not quite, Super PocketGo CM3 is the sort of nearby detour that can completely change the shortlist. Super PocketGo CM3 is tracked around $155.
A handheld earns a place in the shortlist when it can survive comparison without needing excuses. That is the standard this section is really applying.
The heart of the machine is the Broadcom BCM2837 (Raspberry Pi Compute Module 3+ Lite). CPU duties are handled by Cortex-A53. Graphics are handled by Broadcom VideoCore IV. Memory is listed at 1 GB DDR2. The sheet rates the overall performance at 8/10 · A-, or roughly 4 on the normalized scale.
The CPU side is described with 4 Cores, 4 Threads, and 1.2 GHz, which is more useful than brand names alone because it hints at how much headroom the handheld should have before emulator tuning gets annoying. On the graphics side, 250 MHz and ARM helps sketch the ceiling for heavier systems, upscale experiments, and shader curiosity.
GPM280 CM3 looks strongest with Game Boy (A), NES (A), Sega Genesis (A), Game Boy Advance (A), Super Nintendo (A), and PlayStation 1 (A), which gives the review something more tangible than a vague "good for retro" verdict. The listed emulation limit, SNES FX & 3D PS1 (60 FPS), N64 & NDS (playable but can be laggy), is the kind of line buyers should actually respect because it tells you where the romance ends and the compromise begins.
The middle tier of compatibility, including Nintendo DS (C), Nintendo 64 (C), and Dreamcast (C), is where the buyer needs some honesty. These are usually the systems that separate a casual dabbler from a user who is happy tweaking emulator settings, testing cores, or accepting the occasional rough edge.
GPM280 CM3 is currently tracked around $150 and lands in the $100 - $150 pricing band. This category is ruthless about value perception. A handheld can be beloved at one price and impossible to defend at another.
The spreadsheet points shoppers toward WaveShare, Aliexpress, and Amazon for availability. That matters because storefront quality, shipping confidence, and after-sales expectations often shape the emotional experience of a purchase before the box even arrives.
Every handheld makes tradeoffs somewhere, even when the spreadsheet leaves them unstated. The smartest shortlist is usually the one that sees the flaw clearly and decides it is either acceptable or disqualifying before the credit card comes out.
GPM280 CM3 leaves the strongest impression when you frame it as a recommendation for players who want a balanced handheld that can stretch beyond the basics. That is the lens that makes the strengths feel intentional instead of accidental.
Broad emulation range is not just a catchy label here. It is the cleanest shorthand for why this device deserves attention. The compatibility profile around Game Boy (A), NES (A), Sega Genesis (A), and Game Boy Advance (A) gives it a concrete identity.
If the device sparks your interest, the smartest next click is usually Retro CM3, followed by GPM280 CM4, because that is where the shape of the market around it comes into focus. That is what a good review should do: not close the conversation, but sharpen the next choice.
Games shown here match systems this handheld can run at a B grade or better.
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Every answer is built from this console's own catalogue record. Where the record is empty, the answer says so rather than guessing.
The console database lists the GPM280 CM3 under the brand WaveShare. It does not document whether the GPM280 CM3 is an officially licensed WaveShare product.
The console database lists the release date as 2020 / 12 and the price as $150 for the GPM280 CM3.
The console database lists the system on a chip as Broadcom BCM2837 (Raspberry Pi Compute Module 3+ Lite), the CPU as Cortex-A53, and the RAM as 1 GB DDR2 for the GPM280 CM3.
The console database lists the dimensions as 136.4 mm x 67.5 mm x 16.8 mm and the battery as 1500 mAh for the GPM280 CM3. The weight is not documented in the console database.
The console database gives the GPM280 CM3 a grade of B+ or better for 6 systems: Game Boy, Nintendo Entertainment System, Sega Genesis, Game Boy Advance, Super Nintendo, and PlayStation 1.
The marketplace rows shown for the GPM280 CM3 are search and marketplace links, not a verified live price feed. The console database does not verify live prices or stock, so check the linked marketplace listings for current availability.