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Compare Keychron K1 Max vs K3 Differences Side by Side

This comparison helps buyers decide between two ultra-slim wireless mechanical keyboards from Keychron: the K1 Max and the K3. The decision is challenging because both offer low-profile designs and hot-swappable switches, but they differ significantly in layout size, connectivity options, and firmware flexibility. The K1 Max is a newer model with a TKL layout, QMK/VIA support, and a 2.4 GHz gaming option, while the K3 is a more compact 75% board that prioritizes portability and a lower entry price. Your choice will largely depend on whether you need advanced programmability and a full function row, or a smaller footprint for travel.

85
Keychron K1 Max QMK Wireless Custom Mechanical Keyboard ISO Layout Collection
65
Keychron K3 Ultra-slim Wireless Mechanical Keyboard FR-ISO Layout

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4.5 (14)
0.0 (0)
  • Released in 2024
  • Available in a 80% layout
  • Built with the ISO-DE, ISO-Nordic, ISO-UK, ISO, ANSI layout standard
  • Supports QMK firmware
  • Supports VIA configuration
  • Features N-key rollover
  • Has built-in sound dampening
  • Uses a PCB Mount mounting style
  • Supports Bluetooth, 2.4 GHz, Wired, Wireless connectivity
  • Runs at a 1000 Hz polling rate
  • Equipped with a 4000 mAh battery
  • Weighs about 608 g
  • Sized at 24 x 346 x 119 mm
  • Made with a ABS, Aluminum, Plastic case
  • Offers Yes, Rgb, White, North-face, White North-face, Rgb North-face, South-face, Rgb South-face RGB lighting
  • Released in 2023
  • Available in a 75% layout
  • Built with the ISO-FR, ISO, ANSI layout standard
  • Uses a Plate Mount mounting style
  • Supports Bluetooth, Wired, Wireless connectivity
  • Equipped with a 1550 mAh battery
  • Made with a Aluminum, ABS case
  • Offers Yes, Rgb, White, North-face, Rgb North-face RGB lighting
Scores
  • Performance: 80.8
  • Build Quality: 79.7
  • Productivity: 89.1
  • Customizability: 90.2
  • Portability: 76.9
Scores
  • Performance: 62.7
  • Build Quality: 61.7
  • Productivity: 66.8
  • Customizability: 69.6
  • Portability: 78.2
Name
Keychron K1 Max
Name
Keychron K3
Release year
2024
Release year
2023
Switch Options
Tactile, Linear, Clicky
Switch Options
Tactile, Linear, Clicky
Profile
Low Profile
Profile
Low Profile
Hot Swappable
 
Hot Swappable
 
Layout Size
80%
Layout Size
75%
Layout Standard
ISO-DE, ISO-Nordic, ISO-UK, ISO, ANSI
Layout Standard
ISO-FR, ISO, 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, 2.4 GHz, Wired, Wireless
Connection
Bluetooth, Wired, Wireless
Polling Rate
1000 Hz
Polling Rate
-
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
Plate Mount
Screw in Stabilizers
 
Screw in Stabilizers
 
Sound Dampening
 
Sound Dampening
 
Backlight
 
Rgb, White, North-face, South-face
Backlight
 
Rgb, White, North-face
Case Colors
Case Colors
Case Material
ABS, Aluminum, Plastic
Case Material
Aluminum, ABS
Keycaps Material
PBT, ABS
Keycaps Material
PBT, ABS
Dimensions
24 x 346 x 119 mm
Dimensions
-
Weight
608g
Weight
-
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Pros and Trade-offs

If you need deep programmability, low-latency wireless gaming, and a durable PBT keycap set, the Keychron K1 Max is the clear winner across most use cases. Its QMK support and 2.4 GHz connectivity make it a more versatile tool for power users and gamers. However, if your priorities are a smaller footprint for travel, a lower price, and you do not need advanced firmware features, the Keychron K3 remains a solid, budget-friendly ultra-slim option.

Keychron K1 Max

  • +QMK and VIA firmware support allow for extensive key remapping and macros.
  • +2.4 GHz wireless mode with a 1000 Hz polling rate for competitive gaming.
  • +Large 4000mAh battery capacity for extended wireless use.
  • +Double-shot PBT keycaps are durable and resistant to shine.
  • +Interior acoustic foam (IXPE and latex) reduces typing noise.
  • −80% TKL layout is larger than the K3, slightly less portable.
  • −Heavier weight (608g) compared to the K3, though still slim.
  • −Only compatible with Gateron/Keychron low-profile mechanical switches, not optical.
  • −No onboard screen or dedicated macro keys beyond QMK software.

Keychron K3

  • +Compact 75% layout saves desk space and is easier for travel.
  • +Lower starting price point makes it an accessible entry to low-profile mechanical keyboards.
  • +Includes 17 extra keycaps for macOS and Windows compatibility.
  • +Two-level adjustable rubber feet provide basic ergonomic adjustment.
  • −No 2.4 GHz wireless option, relying only on Bluetooth and wired connection.
  • −Smaller 1550mAh battery may require more frequent charging.
  • −Optical switch version is not compatible with standard MX mechanical switches.
  • −Lacks QMK or VIA support, limiting programming and macro customization.

Which Keyboard Is Better for Your Needs?

The Keychron K1 Max wins in five out of six use cases, including gaming, office work, programming, modding, and content creation. Its advantage comes from a larger TKL layout, 2.4 GHz connectivity with a 1000 Hz polling rate, and full QMK/VIA support. The Keychron K3 only takes the lead in the travel category, where its smaller 75% size and lighter weight make it a more portable option. For users prioritizing customization, performance, and a full set of keys, the K1 Max is the stronger choice.

GamingKeychron K1 Max
  • •Supports 2.4 GHz wireless connectivity with a 1000 Hz polling rate for low-latency gaming.
  • •QMK firmware and Keychron Launcher allow for custom macro and key remapping.
  • •ARM architecture MCU with 256KB Flash provides a flexible platform for gaming profiles.
OfficeKeychron K1 Max
  • •80% TKL layout provides a dedicated function row and navigation cluster for efficient workflow.
  • •Includes interior IXPE acoustic foam and latex foam for a quieter typing experience.
  • •Comes with double-shot PBT keycaps known for durability and oil resistance.
ProgrammingKeychron K1 Max
  • •Full QMK and VIA support enables custom keymaps, layers, and macros tailored to coding.
  • •TKL layout keeps essential navigation keys without taking up extra desk space.
  • •Hot-swappable low-profile Gateron switches allow for switch experimentation.
TravelKeychron K3
  • •More compact 75% layout is easier to fit into bags and smaller workspaces.
  • •Lighter weight due to smaller size and 1550mAh battery, enhancing portability.
  • •The K3's design includes a two-level adjustable rubber feet for ergonomics on the go.
ModdingKeychron K1 Max
  • •Open-source QMK firmware offers deep customization beyond simple key remapping.
  • •Hot-swappable PCB supports Gateron/Keychron low-profile mechanical switches without soldering.
  • •The plate is made of polycarbonate, a common modding material for varied sound profiles.
  • •Includes interior foam layers (IXPE and latex) that modders can experiment with replacing.
Content CreationKeychron K1 Max
  • •TKL layout with 12 multimedia keys provides quick access to media controls and shortcuts.
  • •QMK support allows for complex macros for editing software like DaVinci Resolve or Premiere Pro.
  • •Dual-mode connectivity (Bluetooth for wireless and 2.4 GHz for low latency) suits different creative setups.

Frequently Asked Questions (FAQ)

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