Keychron K4 V3 vs K5 ProLayout Size vs Slim Profile
Choose the K4 V3 if you want a compact layout with a huge battery and extensive foam, choose the K5 Pro if you need a full-size numpad in a travel-friendly slim design.
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5.0 (4)5.0 · 4 reviews
from$94at Keychron
4.8 (8)4.8 · 8 reviews
from$135at Keychron (DE)
Which one should you get?
Get the
Keychron K4 V3
Layout Size
Build quality in the top 5% of 96% boards under $100.
- 4000mAh battery offers among the largest capacities for wireless use
- Four-layer acoustic foam (sound-absorbing, IXPE, EPDM, PET) for refined typing sound
- Screw-in steel stabilizers reduce wobble on space bar, shift, enter, and backspace
- North-facing LEDs. Cherry-profile keycaps can hit the switch housing.
- South-facing LEDs. Shine-through legends stay dark, and some sculpted keycaps can clip the LED.
- Missing ISO-FR, ISO-ES, ISO-SW. The other board is sold in those layouts.
- Compact full-size layout. The numpad is present, the gaps of a full-size board are not.
Get the
Keychron K5 Pro
Slim Profile
Build quality in the top 15% of 100% boards under $150.
- Ultra-slim low-profile design with aluminum frame for a sleek desk look
- Full-size 100% layout includes a complete numpad for heavy data work
- Lightweight at 720g makes it easier to transport than many full-size boards
- 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-CH. The other board is sold in those layouts.
If you want a compact powerhouse with a huge battery, extensive foam for a quiet and thocky sound, and the ability to swap any MX switch, the K4 V3 is the stronger choice. If a full-size numpad and an ultra-slim aluminum body that slips into a backpack are your priorities, the K5 Pro delivers a polished, professional experience. Your decision hinges on whether you value deep modding and battery life or a slimmer, lighter full-size layout.
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 K4 V3
Keychron K5 Pro
Layout size
96%
100%
Battery
4,000 mAh
2,000 mAh
A larger battery means fewer cables during the day
Low profile
No
Yes
Case material
Aluminum, Plastic
ABS, Aluminum, Plastic
Sound dampening
Yes
No
- Keychron K4 V3
- Keychron K5 Pro
- Performance
- 8279
- Build quality
- 8778
- Productivity
- 9582
- Customizability
- 9689
- Portability
- 5455
- Connection: Bluetooth, Wired
- Hot-swappable
- Max polling rate: 1,000 Hz
- Switch options: Clicky, Linear, Tactile
- Mount style: Tray Mount
- QMK
What will you mostly use it for?
The K4 V3 takes gaming, programming, modding, and content creation due to its larger battery, extensive foam stack, and stabilizer design. The K5 Pro wins in office and travel categories because of its full-size layout with numpad, lighter weight, and low-profile aluminum construction. Neither keyboard is a clear winner for every task, as the K4 V3 prioritizes features and sound, while the K5 Pro focuses on a slim footprint and full-size functionality.
Pick the Keychron K4 V3
- 1000 Hz polling out of the box for low latency
- North-facing RGB for better shine-through keycap brightness
- Screw-in steel stabilizers reduce wobble on big keys during rapid presses
What owners say
Ratings and quotes collected from verified store reviews, including the critical ones.
Keychron K4 V3
4 owner reviews
“I am overall extremely impressed with this keyboard! I upgraded from a Corsair K70 Luxe that I had for many years, and this feels like miles better of an experience. I am impressed how good the Banana switches are, they are a little more tactile than the…”
Keychron K5 Pro
8 owner reviews
“I love my new keyboard! It's the typing experience I've been seeking.”
Keychron K4 V3 vs K5 Pro specs
Every tracked spec, side by side. Rows marked with a dot differ between the boards.
11 of 26 specs differ
Keychron K4 V3
Keychron K5 Pro
Switch options
Hot-swappable
Mount style
Low profile
Sound dampening
Screw-in stabilizers
Layout size
Layout standard
Ergonomics
Display
Media keys
Connection
Max polling rate
Battery
USB-C
Case 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 K4 V3
Keychron
ISO-DE, ISO-UK, ISO-Nordic, ISO-CH
In stockShips to you
Keychron K5 Pro
Keychron
ISO-DE, ISO-UK, ISO-Nordic, ISO-FR, ISO-ES, ISO-SW
Out of stockShips to you
Keychron (DE)
ISO-DE, ISO-UK, ISO-Nordic, ISO-FR, ISO-ES, ISO-SW
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 K4 V3 vs K5 Pro: your questions
The K4 V3 has a 4000mAh battery, which is double the 2000mAh battery found in the K5 Pro. This means the K4 V3 can last significantly longer in wireless mode before needing a recharge, making it better for extended untethered use.
Yes, both keyboards support QMK firmware and VIA software for key remapping, macros, and shortcuts. The K4 V3 also works with the Keychron Launcher web app, while the K5 Pro is listed as compatible with both Keychron Launcher and VIA according to its product page.
The K5 Pro is more portable due to its ultra-slim low-profile design and lighter weight of 720g. The K4 V3 has a larger battery and plastic case but its dimensions and weight are not listed, so the K5 Pro's slimmer build gives it an edge for travel.
Yes, both come in hot-swappable versions. The K4 V3 supports almost all 3-pin and 5-pin MX mechanical switches. The K5 Pro is only compatible with Gateron low-profile mechanical switches on its hot-swappable variant, as stated on its product page.
The K4 V3 comes with cherry profile double-shot PBT keycaps, which are oil-resistant. The K5 Pro uses low-profile double-shot PBT keycaps that are also non-backlight shine-through with oil resistance.
Only the K5 Pro has a full-size 100% layout with a dedicated numpad. The K4 V3 uses a 96% layout that includes a numpad but in a more condensed form, saving desk space while still offering number entry.
The K4 V3 features screw-in steel stabilizers mounted on the PCB for less wobble on big keys. The K5 Pro uses redesigned stabilizers that stay level, but the vendor description does not specify if they are screw-in or plate-mounted.
The K5 Pro is better for office use due to its full-size numpad for data entry and its ultra-slim aluminum frame that takes up less vertical space on a desk. The K4 V3 has a larger battery and more foam but its taller profile and plastic build may not fit as neatly in a professional setting.
No, neither the K4 V3 nor the K5 Pro includes a screen. Both keyboards rely on indicator LEDs and software configuration for feedback and settings.
The K5 Pro has a stated wireless polling rate of 90 Hz according to its product page. The wireless polling rate for the K4 V3 is not specified in the provided data, though it runs at 1000 Hz in wired mode.
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