You have a Q6 in your cart. You are just not sure which Q6. Max, Ultra, and HE sound like a tier list, the kind where you pick the top one and move on. They are three different keyboards built on the same layout and construction, and the one you should buy depends on what you do at your desk, not on which name sounds most premium.
Threads on r/Keychron ask this directly, for example Keychron Q6 Max VS Q6 ultra VS Q6 HE and Q6 HE or Q6 Max?, and the replies are short. Here is the longer version.
What you are not choosing between: the case and the build
Set the names aside for a second. Q6 Max, Q6 Ultra, and Q6 HE share the same listed construction: full-size 100% layout, a full aluminum body, a double-gasket design, and a knob option. All three are hot-swappable, meaning you can pull switches out and push new ones in without soldering. If you are worried that picking the cheaper one means a worse-built keyboard, you can stop. The listed build features are the same on all three.
They are in what is under your fingers and in how the board talks to your computer.
The real fork: switch type
Q6 Max and Q6 Ultra use standard MX-style mechanical switches, the kind most keyboards you have owned use. Q6 Max ships with Gateron Jupiter switches (Red, Brown, or Banana); Q6 Ultra ships with Keychron's Silk POM switch.
Q6 HE is a hall-effect board, which means magnetic switches. Instead of a metal contact closing, a magnet moves past a sensor, so the board can tell how far down each key is. That gives you two things: adjustable actuation, where you choose the depth at which a press registers, anywhere from 0.2 mm to 3.8 mm; and rapid trigger, where a key is ready to fire again the moment it starts rising. Both matter a lot in fast games and not at all in email.
The cost of that flexibility is switch choice. Q6 HE ships with the Gateron Double-Rail Magnetic Nebula switch, and Keychron states it is compatible exclusively with the Gateron Double-Rail Magnetic Switch, not with Gateron Jade or KS-20 magnetic switches. If swapping switches is part of the fun for you, that is a real constraint. The stock Nebula switch is a linear magnetic switch as far as the product pages show, and no tactile magnetic option is listed for this board.
Q6 Max vs Q6 Ultra: firmware and speed
Once you have settled on mechanical switches, the choice is between Max and Ultra.
Q6 Max runs QMK/VIA. In plain words, VIA is the key-remapping tool that QMK boards use, so if you have set up another QMK keyboard that way, the Q6 Max will feel familiar. It polls at 1000 Hz on 2.4 GHz and wired, and at 90 Hz on Bluetooth, which is fine for typing and not meant for gaming. Bluetooth 5.1, three devices.
Q6 Ultra runs ZMK, a different open-source firmware, and you configure it in Keychron's own Launcher, a free web app, instead of VIA. Its headline is polling: 8K, or 8000 reports a second, over 2.4 GHz wireless and wired. Keychron's battery figure is up to 660 hours; its own gear roundup quotes Tom's Hardware and The Verge on the Q Ultra family's 660-hour figure.
8K matters less than the number suggests. Polling rate is how often the board reports to the computer. Going from 1000 to 8000 reports a second shortens the reporting interval from one millisecond to an eighth of one, which is simple arithmetic, not a test result. If you play competitive shooters, or you simply want the fastest number on the box, the Ultra is the right buy. If you type, browse, and play single-player games, you will not feel it, and the Max is the easier board to live with because so much of the hobby already runs on VIA.
The fourth name you will run into: Q6 HE 8K
If you look at the HE side you will also see "Q6 HE 8K," and it is not the same board as "Q6 HE." Q6 HE 8K is wired only over USB-C, with no Bluetooth or 2.4 GHz, and polls at 8K over that cable with 256 kHz single-key scanning. It ships with a different switch, the Keychron Ultra-fast Lime Magnetic Switch, and hot-swaps with Lime and Gateron Jade magnetic switches, not with the Double-Rail Nebula switch the wireless Q6 HE uses. The two HE boards do not share switches. If you sit hardwired at a desk and play competitively, cross-shop the Q6 HE 8K. If you want the option to go wireless, stick with the standard Q6 HE.
Layout: who gets ISO
Q6 Max and Q6 HE both come in ISO, the layout used in most of Europe with a tall Enter key (German, UK, Swiss, and Nordic versions are on their ISO product pages), and the Q6 Max also has a Japanese JIS listing. ANSI is the US layout with the wide Enter key. As of this check, the Q6 Ultra is sold in ANSI only. If you type on an ISO layout, your real choice is Max or HE, whatever else appeals to you about the Ultra.
Side by side
| Q6 Max | Q6 Ultra | Q6 HE (wireless) | Q6 HE 8K (wired) | |
|---|---|---|---|---|
| Switch | MX mechanical (Gateron Jupiter) | MX mechanical (Silk POM) | Magnetic (Gateron Double-Rail Nebula) | Magnetic (Ultra-fast Lime, hot-swaps Jade) |
| Adjustable actuation | No | No | Yes, 0.2 to 3.8 mm | Yes |
| Configured in | VIA (QMK) | Launcher (ZMK) | Launcher | Launcher |
| Top polling rate | 1000 Hz | 8000 Hz, 2.4 GHz and wired | 1000 Hz | 8000 Hz, wired |
| Connection | 2.4G / BT / wired | 2.4G / BT / wired | 2.4G / BT / wired | Wired only |
| ISO available | Yes, plus JIS | ANSI only (as of this check) | Yes | Not listed |
On price: at the time of writing the Q6 Max and Q6 Ultra list at $239.99 and the Q6 HE at $249.99, and individual models go on promotion at different times, so check the product pages for today's numbers. The extra $10 for the HE buys magnetic switch technology, not a better case; the Max and the Ultra are the same price and differ in firmware and polling.
Which one should you get
Office typist who games casually: Q6 Max. You get the same construction, VIA for remapping, and nothing you would miss. The $10 saved is minor; the real reason is that you keep standard switch choice and the tool you may already know.
Competitive FPS player: Q6 HE if you want adjustable actuation and rapid trigger with wireless, or Q6 Ultra if you would rather keep normal switches and want 8K polling over wireless. If you are hardwired at a desk, Q6 HE 8K gives you magnetic switches and 8K polling over the cable, at the cost of never going wireless.
Someone who wants to swap switches and mod: Q6 Max, or Q6 Ultra if you also want 8K. Both take standard MX-style mechanical switches. Q6 HE locks you into one magnetic switch, and Q6 HE 8K into a different pair, so modding freedom drops the moment you go HE.
Someone on an ISO layout: Q6 Max ISO or Q6 HE ISO. Both list German, UK, Swiss, and Nordic options. The Q6 Ultra is ANSI only as of this check.
FAQ
Is the Q6 Ultra a hall-effect keyboard like the Q6 HE? No. Q6 Ultra uses standard MX-style mechanical switches. Q, V and K Ultra boards are the 8K-polling mechanical line, not hall effect.
Which of the four is easiest to set up? Q6 Max, if you already know VIA. The Ultra and the HE boards are configured in Keychron's Launcher, which is a free web app.
What happens if I buy the wrong switches for a Q6 HE? They will not work. The wireless Q6 HE takes Gateron Double-Rail Magnetic switches only; the Q6 HE 8K takes Keychron Ultra-fast Lime or Gateron Jade only. Check which board you have before ordering.
