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Compare Keychron K1 Pro vs K3 Ultra Differences Side by Side

This comparison targets buyers choosing between two low-profile Keychron models that look similar but split on layout and wireless features. The K1 Pro is an 80% TKL board with QMK, Bluetooth only wireless, and a 1000 Hz wired polling rate. The K3 Ultra is a 75% board with ZMK, 2.4 GHz plus Bluetooth, and 8000 Hz polling in wired and 2.4 GHz modes. The decision is hard because both offer hot-swap, PBT keycaps, Mac and Windows support, and Launcher remapping, so the real trade-offs sit in size, layout coverage, wireless standard, and reported user experiences.

86
Keychron K1 Pro QMK/VIA Wireless Custom Mechanical Keyboard ISO Layout Collection
84
Keychron K3 Ultra 8K Wireless Custom Mechanical Keyboard

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5.0 (5)
2.8 (6)
  • Released in 2023
  • Available in a 80% layout
  • Built with the ISO, ISO-DE, ISO-Nordic, ISO-UK, JIS, ISO-FR, ISO-ES, ISO-SW, ANSI layout standard
  • Provides dedicated media keys
  • Features N-key rollover
  • Uses a Tray Mount mounting style
  • Supports Bluetooth, Wired, Wireless connectivity
  • Runs at a 1000 Hz polling rate
  • Equipped with a 2000 mAh battery
  • Weighs about 580 g
  • Sized at 8 x 346 x 119 mm
  • Made with a Aluminum, Plastic, ABS case
  • Features ABS, PBT keycaps
  • Offers Yes, Rgb, North-face, Rgb North-face, White, White North-face RGB lighting
  • Released in 2026
  • Available in a 75% layout
  • Built with the ANSI, ISO layout standard
  • Has built-in sound dampening
  • Uses a Plate Mount mounting style
  • Supports Bluetooth, 2.4 GHz, Wired, Wireless connectivity
  • Runs at a 8000 Hz polling rate
  • Equipped with a 2600 mAh battery
  • Made with a ABS, Wood case
  • Features PBT keycaps
  • Offers Yes, Rgb, White, North-face, Rgb North-face, White North-face RGB lighting
Scores
  • Performance: 81.3
  • Build Quality: 80.3
  • Productivity: 80
  • Customizability: 88.2
  • Portability: 72.7
Scores
  • Performance: 86
  • Build Quality: 75.8
  • Productivity: 88.5
  • Customizability: 86.1
  • Portability: 81.9
Name
Keychron K1 Pro
Name
Keychron K3 Ultra
Release year
2023
Release year
2026
Switch Options
Linear, Tactile, Clicky
Switch Options
Linear, Tactile, Clicky
Profile
Low Profile
Profile
Low Profile
Hot Swappable
 
Hot Swappable
 
Layout Size
80%
Layout Size
75%
Layout Standard
ISO, ISO-DE, ISO-Nordic, ISO-UK, JIS, ISO-FR, ISO-ES, ISO-SW, ANSI
Layout Standard
ANSI, ISO
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, 2.4 GHz, Wired, Wireless
Polling Rate
1000 Hz
Polling Rate
8000 Hz
Battery capacity
2000 mAh
Battery capacity
2600 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
Tray Mount
Mount Style
Plate Mount
Screw in Stabilizers
 
Screw in Stabilizers
 
Sound Dampening
 
Sound Dampening
 
Backlight
 
Rgb, North-face, White
Backlight
 
Rgb, White, North-face
Case Colors
Case Colors
Case Material
Aluminum, Plastic, ABS
Case Material
ABS, Wood
Keycaps Material
ABS, PBT
Keycaps Material
PBT
Dimensions
8 x 346 x 119 mm
Dimensions
-
Weight
580g
Weight
-
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Pros and Trade-offs

Choose the K3 Ultra if 2.4 GHz, 8000 Hz polling, a 75% footprint, and the wood and metal frame matter more than layout width. Choose the K1 Pro if you want an 80% TKL layout with a full ISO and JIS layout list and QMK support, and you are comfortable with Bluetooth-only wireless. Read the K3 Ultra reviews on key registration before committing, since that is the main reported risk.

Keychron K1 Pro

  • +80% TKL layout with 87 keys and 12 multimedia keys.
  • +QMK firmware with the Keychron Launcher web app for remapping and macros.
  • +Wide layout coverage including ANSI, ISO-DE, ISO-Nordic, ISO-UK, JIS, ISO-FR, ISO-ES, and ISO-SW.
  • +Hot-swappable low-profile Gateron mechanical switches on the hot-swap version.
  • +ABS plus aluminum frame with redesigned stabilizers and a 3° typing angle.
  • −Wireless polling is listed at 90 Hz, well below the 1000 Hz wired rate.
  • −Wireless connectivity is Bluetooth only, with no 2.4 GHz option.
  • −The 2000 mAh battery is smaller than the K3 Ultra's 2600 mAh cell.
  • −Hot-swap compatibility is limited to Gateron low-profile mechanical switches per Keychron.

Keychron K3 Ultra

  • +8000 Hz polling in wired and 2.4 GHz modes, with Bluetooth 5.2 also available.
  • +2600 mAh battery rated for up to 550 hours with the backlight off.
  • +Wood and metal frame with an anodized aluminum alloy plate.
  • +IXPE, EPDM, latex, and bottom case acoustic foams for sound tuning.
  • +Per-key RGB and Mix RGB zones configurable in the Keychron Launcher.
  • −User reviews report missed keystrokes and double registrations out of the box.
  • −Overall review average is low compared with the K1 Pro's five-star record.
  • −Bottom case material is listed as ABS plastic despite the wood and metal body.
  • −Layout options are listed as ANSI and ISO only, narrower than the K1 Pro's list.

Which Keyboard Is Better for Your Needs?

The K3 Ultra takes gaming, travel, modding, and content creation on the strength of 2.4 GHz, 8000 Hz polling, a smaller footprint, a larger battery, and multi-layer acoustic foam. The K1 Pro wins office and programming because its 80% TKL layout keeps the function row and navigation keys, and its QMK and Launcher support is well documented. Layout coverage also favors the K1 Pro, which lists ISO, JIS, and ANSI variants, while the K3 Ultra lists ANSI and ISO. Buyers should weigh the K3 Ultra's stronger wireless specification against the registration complaints in its user reviews.

GamingKeychron K3 Ultra
  • •The K3 Ultra lists 8000 Hz polling in wired and 2.4 GHz modes, while the K1 Pro lists 1000 Hz wired and 90 Hz wireless.
  • •The K3 Ultra adds a 2.4 GHz connection alongside Bluetooth and wired, giving a low-latency wireless option the K1 Pro does not list.
  • •Both list N-key rollover for wireless and wired modes, so the differentiator is polling rate and 2.4 GHz support.
OfficeKeychron K1 Pro
  • •The K1 Pro uses an 80% TKL layout with 87 keys and 12 multimedia keys, which suits desk work with function row and navigation keys.
  • •Its 3° typing angle and low-profile Gateron switches are aimed at long typing sessions.
  • •The K3 Ultra reports mixed user feedback on key registration in reviews, which is a risk for everyday office typing.
ProgrammingKeychron K1 Pro
  • •The K1 Pro runs QMK firmware with the Keychron Launcher web app for key remapping and macros, and works with macOS, Windows, and Linux.
  • •The 80% TKL layout keeps a dedicated function row and navigation cluster that many coding workflows rely on.
  • •Reviewers specifically mention using the K1 Pro for daily programming with a macOS layout that also works on Linux machines.
TravelKeychron K3 Ultra
  • •The K3 Ultra is a 75% board at 320.62 x 126.00 mm and 566 g, smaller than the K1 Pro at 346 x 119 mm and 580 g.
  • •Its 2600 mAh battery is rated by Keychron for up to 550 hours with the backlight off, against the K1 Pro's 2000 mAh cell.
  • •Keychron lists a dedicated travel pouch sized for the K3 family as an add-on.
ModdingKeychron K3 Ultra
  • •The K3 Ultra ships with IXPE acoustic foam, EPDM foam, bottom case acoustic foam, and latex sound-absorbing foam, giving more acoustic tuning layers out of the box.
  • •It uses a plate mount with an anodized aluminum alloy plate, while the K1 Pro uses tray mount.
  • •Both are hot-swappable, but the K3 Ultra's Keychron Milk POM switches are pre-lubed and designed for swapping without soldering.
Content CreationKeychron K3 Ultra
  • •The K3 Ultra supports per-key RGB and Mix RGB zones through the Keychron Launcher, beyond standard backlight presets.
  • •Its wood and metal frame is a distinctive visual option for a desk setup.
  • •The K1 Pro offers more than 22 RGB backlight settings, but the K3 Ultra adds individual key color control.

Frequently Asked Questions (FAQ)

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