Keychron K3 Max vs K13 Max: Slim Keyboard Showdown
By Keychron | Custom Mechanical Keyboards for Mac, Windows ... | Published: 2026-10-29
Category: Comparisons
Compare the ultra-slim 75% K3 Max with the numpad-equipped K13 Max. Find out which low-profile wireless mechanical keyboard fits your workflow and desk space.
Quick answer
Choose the K3 Max for a compact, travel-friendly layout that saves desk space. Pick the K13 Max if you need a dedicated numpad and prefer a wider 80% layout without giving up wireless flexibility.
Layout and desk footprint
The K3 Max uses a 75% layout—it keeps the function row and arrow keys but drops the numpad, making it ideal for cramped desks or on-the-go use. The K13 Max uses an 80% layout that adds a full numpad, which is a rare find in low-profile keyboards. That extra width means you'll need about 15% more horizontal space, but you get dedicated number entry without switching layers.
Wireless and connectivity
Both keyboards support the same triple connectivity: 2.4 GHz for low-latency gaming, Bluetooth for up to three devices, and a wired USB-C mode. They also both work with the Keychron Launcher web app for remapping keys and creating macros—no software install required. The choice here doesn't affect how you connect, so focus on layout and typing feel instead.
Keycaps and typing experience
Both models ship with LSA (low-profile spherical-angled) keycaps that provide a scooped surface for comfortable typing. The keycaps are compatible with Gateron low-profile switches, and both keyboards support hot-swapping, so you can change switches without soldering. The K3 Max offers a wider range of backlight options (check the variant), while the K13 Max focuses on the ISO layout collection for international users.
Key trade-offs between the K3 Max and K13 Max
- K3 Max: Compact 75% layout: Saves desk space and is easier to carry. Loses the numpad, so number-heavy work requires a layer or external numpad.
- K13 Max: 80% layout with numpad: Adds a dedicated numpad for faster data entry. Takes up more desk width and is less portable than the K3 Max.
- Both: Same wireless and software: Triple-mode connectivity (2.4 GHz, Bluetooth, wired) and Keychron Launcher support are identical. Your choice depends on layout, not features. If you need a numpad, the K13 Max is the clear pick. If space is tight, go with the K3 Max.
Product facts at a glance
- Keychron K3 Max QMK/VIA Wireless Custom Mechanical Keyboard: Ultra-slim 75% layout with 2.4 GHz, Bluetooth, and wired connection. Supports full key remapping via Keychron Launcher web app. The compact size fits easily in a bag and frees up mouse space, while the web-based software lets you customize every key without installing anything.
Keychron K3 Max QMK/VIA Wireless Custom Mechanical Keyboard - Keychron K13 Max QMK Wireless Custom Mechanical Keyboard ISO Layout Collection: Low-profile 80% layout with a dedicated numpad, triple wireless modes, and hot-swappable Gateron low-profile switches. The numpad saves you from switching layers for data entry, and the hot-swap sockets let you change switch feel without buying a new keyboard.
Keychron K13 Max QMK Wireless Custom Mechanical Keyboard ISO Layout Collection
Which one fits you?
Best for
- Travelers and minimalists who want the smallest possible low-profile keyboard
- Gamers who need extra mouse space and rarely use a numpad
Not ideal for
- Accountants, data analysts, or anyone who enters numbers all day—you'll want the K13 Max's numpad
