Keychron K5 Max vs K5 Ultra
Choose the K5 Ultra for its 8000 Hz polling and added knob, or the K5 Max if you want a polycarbonate plate and QMK support.
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4.1 (16)4.1 · 16 reviews
from$94at Keychron
5.0 (4)5.0 · 4 reviews
from$114at Keychron
Which one should you get?
Get the
Keychron K5 Max
Build quality in the top 15% of 100% boards under $100.
- 100% layout with Bluetooth, 2.4 GHz, and wired connectivity.
- QMK and VIA support, plus hot-swappable switches.
- Polycarbonate plate and sound-dampening feature.
- Low-profile switches and keycaps only. Standard MX keycaps will not fit.
- North-facing LEDs. Cherry-profile keycaps can hit the switch housing.
- Missing ISO-FR, ISO-ES, ISO-IT. The other board is sold in those layouts.
Get the
Keychron K5 Ultra
Battery
Build quality in the top 15% of 100% boards under $150.
- 8000 Hz polling rate listed for wired and 2.4 GHz modes.
- 2600 mAh battery and a listed weight of 566 g.
- Includes a rotary knob and hot-swappable switches.
- Low-profile switches and keycaps only. Standard MX keycaps will not fit.
- North-facing LEDs. Cherry-profile keycaps can hit the switch housing.
- Missing ISO-UK, ISO-Nordic. The other board is sold in those layouts.
Choose the K5 Ultra if 8000 Hz polling, the rotary knob, or its lower listed weight matters most. The K5 Max is the alternative if you specifically want a polycarbonate plate or prefer its QMK/VIA customization profile. Both retain the 100% layout, hot-swap support, RGB, and three connection modes.
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 K5 Max
Keychron K5 Ultra
Battery
2,000 mAh
2,600 mAh
A larger battery means fewer cables during the day
Max polling rate
1,000 Hz
8,000 Hz
Higher polling helps competitive FPS and does nothing for typing
Case material
ABS, Aluminum
ABS, Metal, Wood
Knob
No
Yes
Weight
720 g
566 g
Heavier boards stay planted and lighter ones travel
- Keychron K5 Max
- Keychron K5 Ultra
- Performance
- 8191
- Build quality
- 8175
- Productivity
- 8993
- Customizability
- 8889
- Portability
- 5356
- Layout size: 100%
- Connection: Bluetooth, 2.4 GHz, Wired
- Hot-swappable
- Low profile
- Switch options: Clicky, Linear, Tactile
- QMK
What will you mostly use it for?
The K5 Ultra leads for gaming, office controls, travel weight, and knob-based creative workflows. Programming is a close match because both offer hot-swap switches and Launcher customization, though their firmware differs. For modding, both provide hot-swap capability, with different firmware and internal foam details to consider. The K5 Max remains a distinct option for buyers who prefer its polycarbonate plate.
Pick the Keychron K5 Ultra
- The K5 Ultra lists 8000 Hz polling, compared with 1000 Hz for the K5 Max.
- Both keyboards support 2.4 GHz and wired connections, as well as N-key rollover.
What owners say
Ratings and quotes collected from verified store reviews, including the critical ones.
Keychron K5 Max
16 owner reviews
“This is by far the best keyboard I've ever had. I did my research with AI defined the one I should get. I'm glad I did this first! I type about a hundred words a minute and do a lot of document creation as well as coding. This keyboard keeps up with me in the…”
“The printing quality of the Hungarian keycaps is very poor. The stroke thickness of the letters varies even within a single keycap—one letter is thick while another is thin. They look ugly. Also, on the internet the "esc" key appears orange, but in reality it…”
Keychron K5 Ultra
4 owner reviews
“This keyboard is exactly what I was looking for. Low profile, great switches, not uber gamery. Very happy so far, hopefully it keeps working for a long time.”
Keychron K5 Max vs K5 Ultra specs
Every tracked spec, side by side. Rows marked with a dot differ between the boards.
10 of 27 specs differ
Keychron K5 Max
Keychron K5 Ultra
Switch options
Hot-swappable
Mount style
Low profile
Sound dampening
Layout size
Layout standard
Ergonomics
Knob
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 K5 Max
Keychron
ISO-DE, ISO-UK, ISO-Nordic
In stockShips to you
Keychron (DE)
ISO-DE, ISO-UK
In stockDoes not ship to you
Keychron K5 Ultra
Keychron (DE)
ISO-DE, ISO-FR, ISO-ES, ISO-IT
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 K5 Max vs K5 Ultra: your questions
The K5 Ultra lists 8000 Hz polling, a rotary knob, and a 2600 mAh battery. The K5 Max lists 1000 Hz polling, a 2000 mAh battery, and a polycarbonate plate.
The K5 Ultra lists 8000 Hz polling, compared with 1000 Hz for the K5 Max, making it the stronger fit if polling rate is your priority. Both support wired and 2.4 GHz connections and list N-key rollover.
Yes, both product listings include Bluetooth, 2.4 GHz, and wired connectivity. Keychron's K5 Ultra description says it can pair with up to three devices.
Both models are listed as hot-swappable. The K5 Ultra vendor description specifies Keychron Milk POM switches, while the K5 Max description identifies low-profile Gateron switches.
The K5 Max metadata lists QMK and VIA support, and Keychron's vendor description discusses QMK and Launcher. The K5 Ultra vendor description identifies ZMK firmware and Keychron Launcher.
The product metadata lists the K5 Ultra at 566 g and the K5 Max at 720 g. Keychron's K5 Ultra vendor description gives a different weight, so check the current product listing if exact weight is important.
The K5 Max metadata lists a 2000 mAh battery, while the K5 Ultra lists 2600 mAh. Keychron describes up to 370 hours for the Ultra with the backlight off, but no comparable runtime is available for the Max in the product metadata.
Yes, the K5 Ultra includes a rotary knob, which Keychron says controls volume by default. Its vendor description says the knob can be configured for commands such as zooming or changing brush size.
The K5 Max metadata lists a polycarbonate plate. The K5 Ultra vendor description specifies an anodized aluminum alloy plate.
No, Keychron describes the K5 Ultra's double-shot PBT keycaps as non-shine-through. The vendor says they are designed to resist oil and prevent legends from fading.
Both product metadata entries list Mac/Win support. Keychron's descriptions also mention Mac and Windows keycaps or layouts for the respective models.
Both offer a 100% layout, hot-swappable switches, and Keychron Launcher customization. The K5 Ultra adds a rotary knob that can be assigned to commands such as zoom or brush-size control, while the K5 Max lists QMK/VIA support.
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