Keychron K3 Pro vs V3 UltraLow Profile or 8K Speed?
Choose the K3 Pro for ultra-slim portability and low-profile switches, or the V3 Ultra for industry-leading 8K wireless polling and rich acoustic foam.
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4.7 (54)4.7 · 54 reviews
from$67at Keychron
5.0 (2)5.0 · 2 reviews
from$114at MK
Which one should you get?
Get the
Keychron K3 Pro
Build quality in the top 15% of 75% boards under $100.
- Ultra-slim low-profile design with Gateron low-profile switches, 31% slimmer than normal switches.
- Compact 75% layout with an aluminum body, weighs only 930g for easier portability.
- Offers both ABS shine-through and PBT double-shot keycap options for different preferences.
- Low-profile switches and keycaps only. Standard MX keycaps will not fit.
- 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-CH. The other board is sold in those layouts.
- No numpad.
Get the
Keychron V3 Ultra
Battery
Build quality in the top 10% of 80% boards under $150.
- Industry-leading 8000 Hz polling rate in both wired and 2.4 GHz wireless modes for ultra-low latency.
- Gasket mount design with a PC plate and multiple layers of acoustic foam for a refined, quiet typing sound.
- Large 4000mAh battery with up to 660 hours of use (backlight off), significantly outlasting the K3 Pro.
- South-facing LEDs. Shine-through legends stay dark, and some sculpted keycaps can clip the LED.
- Missing ISO-Nordic, ISO-SW. The other board is sold in those layouts.
- No numpad.
If your top priority is gaming or you need the absolute lowest input lag, the Keychron V3 Ultra is the clear choice thanks to its 8K wireless polling rate. However, if you often work on the go or prefer a sleek, ultra-slim typing experience, the Keychron K3 Pro's low-profile design is a better fit. In short, decide between ultimate speed and ultimate portability.
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 K3 Pro
Keychron V3 Ultra
Layout size
75%
80%
Connection
Bluetooth, Wired
Wired, Bluetooth, 2.4 GHz
Wireless for several devices and wired for lower latency
Battery
1,550 mAh
4,000 mAh
A larger battery means fewer cables during the day
Low profile
Yes
No
Max polling rate
1,000 Hz
8,000 Hz
Higher polling helps competitive FPS and does nothing for typing
- Keychron K3 Pro
- Keychron V3 Ultra
- Performance
- 8191
- Build quality
- 8183
- Productivity
- 7998
- Customizability
- 8894
- Portability
- 7776
- Hot-swappable
- Switch options: Clicky, Linear, Tactile
- QMK
- VIA
What will you mostly use it for?
The Keychron V3 Ultra is the clear winner for performance-focused tasks like gaming and office work, thanks to its 8K polling rate and larger battery. Its gasket mount and screw-in stabilizers also make it the better choice for modding enthusiasts. For travel, the K3 Pro's low-profile design and smaller 75% layout give it a decisive advantage. In content creation, the choice is a tie as the K3 Pro saves desk space while the V3 Ultra offers a knob for media control. For programming, the V3 Ultra's TKL layout and cushioned feel are more suited for extended typing sessions.
Pick the Keychron V3 Ultra
- The V3 Ultra offers an 8000 Hz polling rate in both wired and 2.4 GHz wireless modes for extremely low latency.
- Features a gasket mount design and PC plate for a softer, more controlled feel, which can aid during long gaming sessions.
- Equipped with pre-lubed Keychron Silk POM switches, designed for precision and smooth keystrokes.
What owners say
Ratings and quotes collected from verified store reviews, including the critical ones.
Keychron K3 Pro
54 owner reviews
“For anyone buying this, remember to toggle the switch to the correct operating system. Other than that, the feel is good and it comes with a good feature set for a low price”
“I was happy at the beginning but after few months of use I'm getting more and more frustrated. Keyboard just hangs sometimes and I'm not able to connect with BT. I use it to operate two laptops and using Fn+1 anf Fn+2 combination is great... when it works…”
Keychron V3 Ultra
2 owner reviews
“Second Keyboard I buy from Keychron! I live in El Salvador and it arrived on time and perfectly. Extremely comfortable, outstanding switches. Best keyboard I've had in my life.”
Keychron K3 Pro vs V3 Ultra specs
Every tracked spec, side by side. Rows marked with a dot differ between the boards.
16 of 28 specs differ
Keychron K3 Pro
Keychron V3 Ultra
Switch options
Hot-swappable
Mount style
Low profile
Sound dampening
Screw-in stabilizers
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 K3 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
Out of stockDoes not ship to you
Keychron V3 Ultra
Input Gear
ISO-DE
Out of stockShips to you
Keychron (DE)
ISO-FR, 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 K3 Pro vs V3 Ultra: your questions
The Keychron V3 Ultra offers a much faster polling rate of up to 8000 Hz in both wired and 2.4 GHz wireless modes. The Keychron K3 Pro has a maximum polling rate of 1000 Hz in wired mode, which is common for most keyboards but significantly slower than the V3 Ultra.
Yes, both keyboards support wireless connectivity. The K3 Pro uses Broadcom Bluetooth 5.1 to connect up to three devices. The V3 Ultra is more versatile, offering both Bluetooth 5.3 for up to three devices and a dedicated 2.4 GHz dongle connection for a lower latency wireless experience.
The Keychron V3 Ultra is generally better for modding. It features a gasket mount design, a PC plate, screw-in stabilizers, and multiple layers of acoustic foam (including EPDM and PET films). This provides a more enthusiast-friendly platform for sound dampening and feel modifications compared to the K3 Pro's tray mount and plastic plate.
Yes, both keyboards feature hot-swappable switches. However, the K3 Pro is only compatible with Gateron low-profile mechanical switches. The V3 Ultra is more flexible, compatible with almost all 3-pin and 5-pin MX-style mechanical switches from brands like Cherry, Gateron, and Kailh.
The Keychron V3 Ultra has a significantly longer battery life. It has a 4000mAh battery and can last up to 660 hours with the backlight off. The K3 Pro has a 1550mAh battery, so its actual battery life will be much shorter, though specific runtime figures for the K3 Pro are not provided in its specifications.
The Keychron K3 Pro has an aluminum case, which gives it a more premium feel for its size. The Keychron V3 Ultra has a plastic (polymer) body, designed to be lightweight and to dampen typing sound. The V3 Ultra’s internal build is more complex, featuring a gasket mount and multiple foam layers.
The Keychron K3 Pro supports both QMK and VIA firmware, allowing for extensive customization. The Keychron V3 Ultra uses ZMK firmware instead of QMK. Both are programmable via the Keychron Launcher web app, which allows you to remap keys and create macros from your browser on Windows, macOS, or Linux.
The Keychron K3 Pro is more portable. Its 75% layout is more compact than the V3 Ultra's 80% (TKL) layout. Additionally, its low-profile design makes it significantly thinner, and it weighs less at 930g compared to the V3 Ultra's 960g.
The Keychron K3 Pro is available with either LSA-profile shine-through ABS keycaps or non-shine-through LSA double-shot PBT keycaps. The Keychron V3 Ultra comes with OSA-profile double-shot PBT keycaps, which the manufacturer describes as having a height similar to OEM and a shape like SA.
Yes, the Keychron V3 Ultra comes with an all-new knob for controlling functions like volume. The Keychron K3 Pro does not have a knob on its 75% layout; it relies on multi-media keys for similar functions.
Both keyboards are designed for dual compatibility. They come with a system toggle switch and an extra set of keycaps for both macOS and Windows. The K3 Pro’s manufacturer notes it has Mac-specific multimedia keys, while the V3 Ultra allows you to save a different layout for each operating system.
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