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Compare Keychron K2 QMK V3 vs K3 Pro Differences Side by Side

This comparison is for buyers deciding between a standard 75% wireless keyboard and a low-profile 75% wireless keyboard, both from Keychron. The K2 QMK V3 offers a familiar typing height with a 4000mAh battery and premium build materials, while the K3 Pro prioritizes portability with a 31% slimmer design and a lower weight. The decision is hard because both support QMK and VIA for programming, and both come in hot-swappable versions. Your choice will depend on whether you value battery life and acoustic foam or a thin, travel-friendly profile.

83
Keychron K2 QMK Wireless Mechanical Keyboard (ISO Layout) - Version 3
87
Keychron K3 Pro QMK/VIA Wireless Custom Mechanical Keyboard - Image: 3

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0.0 (0)
4.7 (52)
  • Released in 2025
  • Has Tactile, Linear, Clicky switch options
  • Built with the ISO, ISO-UK, ISO-DE, ISO-ES, ISO-FR, ISO-Nordic, ISO-SW, ANSI layout standard
  • Uses a PCB Mount mounting style
  • Supports Bluetooth, Wired, Wireless connectivity
  • Equipped with a 4000 mAh battery
  • Made with a Aluminum case
  • Features PBT keycaps
  • Offers Yes, Rgb, White RGB lighting
  • Released in 2022
  • Has Linear, Tactile, Clicky switch options
  • Features a low-profile design
  • Built with the ISO, JIS, ISO-DE, ISO-ES, ISO-FR, ISO-Nordic, ISO-SW, ISO-UK, ANSI layout standard
  • Uses a Tray Mount mounting style
  • Supports Bluetooth, Wired, Wireless, 2.4 GHz connectivity
  • Runs at a 1000 Hz polling rate
  • Equipped with a 1550 mAh battery
  • Weighs about 930 g
  • Sized at 15 x 306 x 116 mm
  • Made with a Aluminum, Plastic, ABS case
  • Features ABS, PBT keycaps
  • Offers Yes, Rgb, South-face, Rgb South-face, White, North-face, Rgb North-face, White North-face RGB lighting
Scores
  • Performance: 82.1
  • Build Quality: 78.4
  • Productivity: 80.6
  • Customizability: 90
  • Portability: 80.9
Scores
  • Performance: 80.9
  • Build Quality: 81.3
  • Productivity: 79.7
  • Customizability: 89
  • Portability: 77.3
Name
Keychron K2 QMK V3
Name
Keychron K3 Pro
Release year
2025
Release year
2022
Switch Options
Tactile, Linear, Clicky
Switch Options
Linear, Tactile, Clicky
Profile
Normal Profile
Profile
Low Profile
Hot Swappable
 
Hot Swappable
 
Layout Size
75%
Layout Size
75%
Layout Standard
ISO, ISO-UK, ISO-DE, ISO-ES, ISO-FR, ISO-Nordic, ISO-SW, ANSI
Layout Standard
ISO, JIS, ISO-DE, ISO-ES, ISO-FR, ISO-Nordic, ISO-SW, ISO-UK, ANSI
Layout Ergonomics
Normal
Layout Ergonomics
Normal
Knob Support
 
Knob Support
 
Display Support
 
Display Support
 
Mac/Win Support
 
Mac/Win Support
 
Multi-Media Keys
 
Multi-Media Keys
 
USB-C
 
USB-C
 
USB passthrough
 
USB passthrough
 
Connection
Bluetooth, Wired, Wireless
Connection
Bluetooth, Wired, Wireless, 2.4 GHz
Polling Rate
-
Polling Rate
1000 Hz
Battery capacity
4000 mAh
Battery capacity
1550 mAh
Hall Effect Support
 
Hall Effect Support
 
QMK Support
 
QMK Support
 
VIA Support
 
VIA Support
 
VIAL Support
 
VIAL Support
 
N-Key Rollover
 
N-Key Rollover
 
Rapid Trigger
 
Rapid Trigger
 
Mount Style
PCB Mount
Mount Style
Tray Mount
Screw in Stabilizers
 
Screw in Stabilizers
 
Sound Dampening
 
Sound Dampening
 
Backlight
 
Rgb, White
Backlight
 
Rgb, South-face, White, North-face
Case Colors
Case Colors
Case Material
Aluminum
Case Material
Aluminum, Plastic, ABS
Keycaps Material
PBT
Keycaps Material
ABS, PBT
Dimensions
-
Dimensions
15 x 306 x 116 mm
Weight
-
Weight
930g
*Something incorrect or missing? Please
let me know
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Pros and Trade-offs

If you prioritize battery life, quiet typing, and extensive modding possibilities, the Keychron K2 QMK V3 is the better choice with its larger battery and acoustic foam layers. For those who need a slim, lightweight keyboard for travel or prefer a lower typing profile, the Keychron K3 Pro wins with its portable design and 2.4 GHz connectivity. Both keyboards offer excellent QMK and VIA support, so your final decision should hinge on whether standard height or low profile fits your daily workflow.

Keychron K2 QMK V3

  • +Large 4000mAh battery provides extended wireless use compared to the K3 Pro's 1550mAh battery.
  • +Includes multiple layers of acoustic foam (sound-absorbing, IXPE, EPDM, PET) for a quieter typing sound.
  • +PCB mount screw-in steel stabilizers offer less wobble on large keys and support third-party replacements.
  • +Compatible with almost any 3-pin or 5-pin MX style switch, offering more modding flexibility.
  • +Cherry profile double-shot PBT keycaps provide excellent oil resistance and durability.
  • −Standard height may be less comfortable for users who prefer ultra-slim keyboards for ergonomic reasons.
  • −Heavier than the K3 Pro due to the aluminum case and larger battery, though exact weight is not stated.
  • −Only Bluetooth and wired connectivity, lacking the 2.4 GHz wireless option found on the K3 Pro.

Keychron K3 Pro

  • +Low-profile design is 31% slimmer than normal keyboards, ideal for portability and ergonomic setups.
  • +Includes 2.4 GHz wireless connectivity in addition to Bluetooth and wired, providing a stable connection option.
  • +Weighs only 930g, making it lighter and more travel-friendly than the K2 QMK V3.
  • +Hot-swappable with pre-lubed Gateron low-profile switches for a smooth typing feel.
  • −Smaller 1550mAh battery results in shorter wireless runtime compared to the K2 QMK V3.
  • −Hot-swap compatibility is limited to Gateron low-profile mechanical switches, reducing aftermarket options.
  • −Vendor reviews from users mention that backlighting does not fully illuminate the bottom of keycaps, and the keyboard can be loud with case resonance.
  • −Available keycaps are limited to LSA profile ABS or PBT, with no standard MX keycap compatibility.

Which Keyboard Is Better for Your Needs?

For gaming and travel, the K3 Pro takes the lead due to its low profile, lighter weight, and 2.4 GHz connectivity, while the K2 QMK V3 wins for office and modding thanks to its larger battery, quieter foam layers, and broader switch compatibility. In programming and content creation, both keyboards tie, offering nearly identical firmware-level customization and layout efficiency. The K3 Pro's lower battery capacity may be a trade-off for travelers, while the K2 QMK V3's standard height may not suit users seeking an ultra-slim desk setup.

GamingKeychron K3 Pro
  • •The K3 Pro features a 1000 Hz polling rate on wired mode, as stated by the manufacturer, which is engineered for competitive gaming.
  • •The low-profile Gateron switches offer a fast actuation suitable for quick inputs.
  • •Both keyboards share similar performance scores, but the K3 Pro's wired polling rate is explicitly marketed for gaming.
OfficeKeychron K2 QMK V3
  • •The K2 QMK V3 has a 4000mAh battery, offering longer wireless runtime compared to the K3 Pro's 1550mAh battery.
  • •Multiple foam layers (sound-absorbing, IXPE, EPDM, PET) create a quieter typing experience as per the vendor description.
  • •Cherry profile double-shot PBT keycaps are durable and oil-resistant for daily office use.
ProgrammingTie
  • •Both keyboards support QMK and VIA, allowing full key remapping and macro creation via the Keychron Launcher web app.
  • •Both offer hot-swappable options and include pre-lubed switches for a smooth typing feel.
  • •Each has a 75% layout providing all essential keys without the numpad, a common preference among programmers.
TravelKeychron K3 Pro
  • •The K3 Pro is 31% slimmer than standard keyboards, making it easier to pack in a bag.
  • •At 930g, it is lighter than the K2 QMK V3, which does not have a stated weight but likely heavier due to the aluminum case and larger battery.
  • •The K3 Pro includes 2.4 GHz connectivity, offering a stable wireless connection option on the go.
ModdingKeychron K2 QMK V3
  • •The K2 QMK V3 uses PCB mount screw-in steel stabilizers and supports third-party screw-in steel stabilizers for improved customization.
  • •The K2 QMK V3 is compatible with almost all 3-pin and 5-pin MX style mechanical switches, while the K3 Pro is limited to Gateron low-profile mechanical switches only.
  • •The K2 QMK V3 includes multiple layers of acoustic foam, giving modders more to work with when tuning sound.
Content CreationTie
  • •Both keyboards support QMK and VIA, enabling custom shortcuts for video editing and design software on both Mac and Windows.
  • •Both include multimedia keys and Mac/Win support, providing flexibility across platforms.
  • •Neither keyboard includes a screen or dedicated macro keys, but software-based customization fills the gap.

Frequently Asked Questions (FAQ)

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