Razer BlackWidow V4 Pro 75% Review: OLED, 4K Wireless and Hot-Swap

The Razer BlackWidow V4 Pro 75% is a premium wireless mechanical gaming keyboard combining 4K Hz HyperSpeed Wireless, hot-swappable Orange tactile switches, a 2-inch OLED display, Bluetooth and Razer Chroma RGB.

It is designed for gamers who want competitive performance without giving up enthusiast-style keyboard customization.

Razer BlackWidow V4 Pro 75% Specs

Razer also includes N-key rollover, anti-ghosting, onboard profiles and the programmable Razer Command Dial.

4K Hz Wireless

The keyboard supports up to 4,000Hz polling wirelessly using Razer HyperSpeed and HyperPolling technology.

This allows the keyboard to report inputs much more frequently than a traditional 1,000Hz wireless keyboard.

For most players the difference will be subtle, but it can be useful with very high-refresh-rate competitive gaming setups.

Razer Orange Gen-3 Switches

The keyboard comes pre-installed with Razer Orange Mechanical Switches Gen-3.

They provide tactile feedback without the louder click of Razer Green switches.

Razer describes them as tactile and quiet, making them suitable for both gaming and typing.

Hot-Swappable Switches

One of the biggest advantages is the hot-swappable PCB.

It supports both:

3-pin switches
5-pin switches

so you can replace the stock Orange switches without soldering.

This gives the BlackWidow V4 Pro 75% much more customization potential than traditional gaming keyboards.

2-Inch OLED Display

The keyboard includes a built-in 2-inch OLED display.

It can show:

• PC system information
• Keyboard settings
• Custom images
• Custom GIFs
• Command Dial modes

The OLED pairs with the Razer Command Dial, which can control volume, RGB brightness, OLED settings and other customizable functions.

Bluetooth 5.1

The keyboard supports Bluetooth 5.1 and can pair with up to three Bluetooth devices.

You can quickly switch between different systems, making it useful for users who move between:

• Gaming PC
• Laptop
• Tablet

Typing Experience

Razer uses several enthusiast-style design features:

• Gasket-mounted FR4 plate
• Plate foam
• Case foam
• Tape-enhanced PCB
• Lubricated screw-in stabilizers
• Krytox GPL 205g0 lubricant

These features help produce a softer typing feel and reduce unwanted case resonance.

Doubleshot PBT Keycaps

The keyboard uses Doubleshot PBT keycaps.

PBT is generally more resistant to shine and wear than basic ABS keycaps, while the legends remain illuminated by the Chroma RGB lighting.

Chroma RGB

Lighting includes:

Per-key RGB
2-side underglow

Both can be customized through Razer Synapse 4 and synchronized with compatible Razer Chroma devices.

Battery Life

Razer advertises up to an impressive:

2,100 Hours

of battery life.

However, this number applies specifically to Power Saving Mode, which disables the OLED display and RGB lighting and reduces background communication.

With RGB, OLED animations and 4,000Hz polling enabled, battery life is dramatically shorter.

PCWorld observed roughly 18 hours under a maximum-feature setup, while another reviewer measured around 8–10 hours with RGB at full brightness and 4K polling.

So battery life varies enormously depending on settings.

75% Layout

The compact 75% layout keeps:

• Function row
• Arrow keys
• Navigation controls

while removing the dedicated number pad.

This saves considerable desk space while retaining more functionality than a 60% keyboard.

Wrist Rest

Razer includes a magnetic plush leatherette wrist rest.

It attaches directly to the front of the keyboard and provides extra support during long gaming or typing sessions.

Build Quality

The keyboard uses a 5052 aluminum alloy top case with a plastic bottom chassis.

It weighs close to 1kg even without the wrist rest, giving it a substantial premium feel.

Pros

✓ True 4,000Hz wireless polling
✓ Hot-swappable 3-pin and 5-pin switches
✓ Excellent Orange tactile switches
✓ 2-inch OLED display
✓ Bluetooth for three devices
✓ Doubleshot PBT keycaps
✓ Enthusiast-style gasket construction
✓ Excellent RGB lighting
✓ Comfortable magnetic wrist rest
✓ Highly customizable through Synapse 4

Cons

✗ Very expensive
✗ Battery drops quickly with OLED, RGB and 4K polling
✗ OLED is useful but not essential
✗ No number pad
✗ Relatively heavy for a 75% keyboard
✗ No USB passthrough

Razer BlackWidow V4 Pro 75% Rating

Gaming Performance: 9.7/10
Typing Experience: 9.5/10
Build Quality: 9.5/10
Customization: 9.8/10
Wireless: 9.7/10
Battery: 8.4/10
Value: 8.5/10

Overall: 9.4/10

Verdict

The Razer BlackWidow V4 Pro 75% is an excellent premium wireless mechanical keyboard for gamers who want both high-end wireless performance and enthusiast-level customization.

Its biggest strengths are 4K Hz wireless polling, hot-swappable switches, excellent Orange tactile switches, Bluetooth multi-device support and the customizable OLED display.

The biggest drawbacks are its premium price and battery life when all of its high-power features are enabled.

For gamers who want a compact premium mechanical keyboard with extensive customization and fast wireless performance, the BlackWidow V4 Pro 75% is one of Razer’s most feature-packed options.