Keychron K4 96% Wireless Mechanical Keyboard - Compact 100-Key Typing

Our review of the Keychron K4 v2 finds a compact, productivity-first mechanical keyboard that suits users who want a full numeric keypad without a full-size footprint. The biggest reason to consider the K4 is its 96% layout combined with a large 4000 mAh battery and Broadcom Bluetooth 5.1, which makes it easy to switch between up to three devices and work long sessions without reaching for the cable. It is aimed at Mac and Windows users who value tactile, clicky feedback and RGB backlight customization in a smaller desk footprint.

Key Features

• 96% layout: Provides a full 100-key keyboard including a number pad in a compact chassis for better desk space management without sacrificing keys.
• Bluetooth 5.1 multi-device: Connects with up to three devices and switches between them quickly using the Broadcom Bluetooth 5.1 chipset for reliable wireless use.
• Gateron G Pro Blue switches: Delivers a tactile and clicky typing experience with a long lifespan suited for heavy typing or light gaming.
• Long battery life: A 4000 mAh battery can last up to 240 hours with backlight off, reducing frequent recharges for long workdays.
• Mac and Windows support: Ships with a Mac-specific layout and extra keycaps for Windows, so both platforms are supported without compromise.
• RGB backlight and modes: Offers over a dozen lighting effects including static modes to personalize the look while keeping modern keycap legends.

Who It's For

The K4 v2 is a good fit for professionals, students, and creative workers who need a numeric keypad but prefer a smaller footprint than a standard full-size keyboard. Its Bluetooth multi-device pairing makes it especially handy for people who switch between a laptop, tablet and phone during a typical day.

It also suits typists and casual gamers who like a tactile, clicky switch and want RGB customization. Users who need low-noise switches or dedicated macro software and advanced wired-only tournament features should look elsewhere.

Pros & Cons

Pros

• Compact 96% design saves desk space while retaining a number pad.
• Reliable Broadcom Bluetooth 5.1 with up to three-device pairing for flexible multi-device workflows.
• Gateron G Pro Blue switches give strong tactile feedback and responsiveness for typing.
• Large 4000 mAh battery delivers long unplugged runtime when backlight is disabled.

Cons

• Clicky blue switches can be loud for shared or quiet environments.
• Advanced customization options require learning keyboard shortcuts rather than dedicated software.

Specifications

Our Verdict

The Keychron K4 v2 is a strong value for those who want a compact keyboard with a number pad, solid wireless performance and a tactile typing feel. It balances battery life, Bluetooth 5.1 multi-device convenience, and satisfying clicky switches in one package, making it a practical choice for productivity-focused users who do light gaming and switch between devices frequently.

Frequently Asked Questions

Does the K4 work with Mac and Windows?
Yes; the keyboard ships with a Mac layout and extra keycaps for Windows to ensure both platforms are supported.

How many devices can it pair with?
The K4 v2 can pair with up to three devices using Bluetooth 5.1 and switch between them easily.

What is the battery life like?
With its 4000 mAh battery the keyboard can last up to 240 hours with backlight disabled; active RGB will reduce that runtime.