Keychron K8 Max vs K8 Ultra
Choose the K8 Ultra for its higher listed polling rate and longer vendor-claimed battery life, or the K8 Max for its QMK firmware and broader listed layout options.
KeebFinder may earn a commission when you buy through these links, at no extra cost to you.
No reviews
from$94at Keychron
5.0 · 4 reviews
from$119at MK
Which one should you get?
Get the
Keychron K8 Max
Build quality in the top 5% of 80% boards under $100.
- QMK support, plus Keychron Launcher customization for remapping and macros in the vendor description.
- Metadata lists ANSI, ISO, ISO-DE, ISO-UK, ISO-SW, and ISO-CH layouts.
- Hot-swappable switches and both PCB-mount and plate-mount options are listed.
- South-facing LEDs. Shine-through legends stay dark, and some sculpted keycaps can clip the LED.
- Missing ISO-ES. The other board is sold in those layouts.
Get the
Keychron K8 Ultra
polling rate
Build quality in the top 10% of 80% boards under $150.
- Lists 8000 Hz polling in wired and 2.4 GHz modes.
- Vendor claims up to 760 hours of use with the backlight off and a 4000 mAh battery.
- ZMK firmware and Keychron Launcher support key remapping and macros, according to the vendor.
- South-facing LEDs. Shine-through legends stay dark, and some sculpted keycaps can clip the LED.
- Missing ISO-DE, ISO-UK, ISO-CH. The other board is sold in those layouts.
Pick the K8 Ultra if higher polling in wired or 2.4 GHz mode and its vendor-claimed longer battery life are your priorities. Choose the K8 Max if you prefer QMK, need one of its listed ISO variants, or want the option of PCB mounting. The shared hot-swap design and core connectivity mean either can suit general typing and everyday use.
The differences that matter
Skip the 40-row spec sheet. These are the specs that change how each board feels, sounds, and fits your desk.
Keychron K8 Max
Keychron K8 Ultra
Max polling rate
1,000 Hz
8,000 Hz
Higher polling helps competitive FPS and does nothing for typing
Case material
ABS, Aluminum, Steel
ABS, Aluminum, Metal
Mount style
PCB Mount, Plate Mount
Plate Mount
Weight
1,308 g
1,299 g
Heavier boards stay planted and lighter ones travel
Layout standard
ANSI, ISO, ISO-CH, ISO-DE, ISO-SW, ISO-UK
ANSI, ISO, ISO-ES
ISO and JIS exist so regional layouts fit
- Keychron K8 Max
- Keychron K8 Ultra
- Performance
- 8290
- Build quality
- 8883
- Productivity
- 9594
- Customizability
- 9192
- Portability
- 7377
- Layout size: 80%
- Connection: Bluetooth, 2.4 GHz, Wired
- Hot-swappable
- Battery: 4,000 mAh
- Switch options: Clicky, Linear, Tactile
- QMK
What will you mostly use it for?
The K8 Ultra is the clearer fit for gaming when the listed high polling rate matters, and its vendor-claimed battery runtime also gives it an edge for long stretches away from charging. The K8 Max is a stronger match for buyers specifically seeking QMK or one of its additional listed ISO layout variants. For office work and content creation, their shared 80% layouts, media keys, and multi-mode connectivity make the choice close. Modders can choose by firmware preference and the K8 Max's PCB-mount option, since both offer hot-swap switches.
Pick the Keychron K8 Ultra
- The K8 Ultra lists 8000 Hz polling in wired and 2.4 GHz modes, compared with 1000 Hz for the K8 Max.
- Both offer 2.4 GHz connectivity, hot-swappable switches, and N-key rollover.
Keychron K8 Max vs K8 Ultra specs
Every tracked spec, side by side. Rows marked with a dot differ between the boards.
6 of 26 specs differ
Keychron K8 Max
Keychron K8 Ultra
Switch options
Hot-swappable
Mount style
Sound dampening
Screw-in stabilizers
Layout size
Layout standard
Ergonomics
Display
Media keys
Connection
Max polling rate
Battery
USB-C
Case material
Plate material
Keycaps
Weight
Dimensions
Typing angle
Backlight
QMK
VIA
N-key rollover
Mac & Windows
Released
ISO layouts by store
Which stores sell ISO-DE, UK, and the other regional layouts.
Keychron K8 Max
Keychron
ISO-DE, ISO-UK, ISO-CH
In stockShips to you
Keychron (DE)
ISO-DE, ISO-UK, ISO-CH
Out of stockDoes not ship to you
Keychron K8 Ultra
Keychron (DE)
ISO-ES
In stockDoes not ship to you
Compare prices
Live prices from the stores we track, cheapest in-stock offer first.
Prices in USD are converted to your currency and can change at any time. KeebFinder may earn a commission when you buy through these links, at no extra cost to you.
Lowest price across stores, Amazon excluded.
Keychron K8 Max vs K8 Ultra: your questions
The K8 Ultra lists 8000 Hz polling in wired and 2.4 GHz modes, while the K8 Max lists 1000 Hz. The K8 Max uses QMK and the K8 Ultra uses ZMK, and the Ultra's vendor page claims a longer battery runtime with the backlight off.
The K8 Ultra lists an 8000 Hz polling rate for wired and 2.4 GHz connections. The K8 Max lists 1000 Hz, so the Ultra has the higher stated rate.
The K8 Ultra is listed with 8000 Hz polling in wired and 2.4 GHz modes, as well as N-key rollover and hot-swappable switches. Those features make it the more compelling of these two for buyers prioritizing the stated polling rate.
Keychron claims up to 760 hours for the K8 Ultra with the backlight off, and its page also lists up to 230 hours with RGB at the lowest brightness. The K8 Max vendor page claims up to 190 hours.
Yes. Both list Bluetooth, 2.4 GHz, and wired connectivity, so each can connect in multiple ways.
Both product listings identify them as hot-swappable. The K8 Max vendor says its hot-swap version supports many 3-pin and 5-pin MX-style switches without soldering.
The K8 Max lists QMK support. The K8 Ultra uses ZMK firmware instead, and both vendor descriptions mention using Keychron Launcher for remapping and macros.
The K8 Max metadata lists ANSI, ISO, ISO-DE, ISO-UK, ISO-SW, and ISO-CH. The K8 Ultra lists ANSI, ISO, and ISO-ES, so the Max has more named variants in its listing.
Both are listed with PBT keycaps, and their vendor descriptions specify OSA double-shot PBT keycaps. The K8 Ultra vendor page describes its keycaps as oil-resistant.
Both are 80% or TKL layouts, not full-size layouts. Keychron describes the TKL design as removing the number pad.
The K8 Ultra is listed at 1299 g, while the K8 Max metadata lists 1308 g. The difference is small, and both are relatively heavy keyboards by their listed weights.
Both listings include Mac and Windows support, and the vendor descriptions mention macOS and Windows compatibility. The K8 Max vendor also says it includes keycaps for both operating systems.
Not sold on either?
Still torn?
Answer a few quick questions and the keyboard finder ranks 2,000+ boards by how you will actually use yours.