Average score
Product 1: Logitech G915 X Lightspeed
4.0
Product 2: Razer BlackWidow V4 Pro
3.9
acoustics
Product 1: Logitech G915 X Lightspeed
3.7

Sound is noticeable rather than muted overall: some reviews like the intentional clack and muted tactile note, while others mention rattling and metallic ping.

Product 2: Razer BlackWidow V4 Pro
3.8

Acoustics are solid but switch-dependent. Yellow builds are described as pleasing and controlled, while Green builds can sound louder and more plasticky.

actuation consistency
Product 1: Logitech G915 X Lightspeed
4.1

Reviews describe quick, consistent registration, but the light actuation can also cause accidental double presses until the user adapts.

Product 2: Razer BlackWidow V4 Pro
4.5

For the tested Yellow switches, reviewers describe consistent fast reset behavior that keeps repeated presses from dropping inputs.

analog input support
Product 1: Logitech G915 X Lightspeed
1.1

Reviews explicitly note that analog input is absent, and some compare the board unfavorably with analog-equipped rivals.

Product 2: Razer BlackWidow V4 Pro
No score yet
backlight brightness
Product 1: Logitech G915 X Lightspeed
4.6

Backlight brightness is easy to adjust from the keyboard, with multiple levels and the option to turn lighting off completely.

Product 2: Razer BlackWidow V4 Pro
4.3

Brightness is strong and flexible enough to stand out in normal use, with reviewers specifically praising how bright and focused the lighting looks.

battery life
Product 1: Logitech G915 X Lightspeed
4.6

Battery life is one of the clearest strengths, with repeated reports of mid-30s to around 100 hours with lighting on and up to 800 to 1000 hours with lighting off.

Product 2: Razer BlackWidow V4 Pro
No score yet
build quality
Product 1: Logitech G915 X Lightspeed
4.8

Reviewers consistently frame the board as premium, polished, sturdy, and exceptionally well built.

Product 2: Razer BlackWidow V4 Pro
4.6

Build quality is widely praised. Reviewers consistently describe the board as premium, sturdy, and well assembled despite some plastic in the chassis.

cable quality
Product 1: Logitech G915 X Lightspeed
4.4

The included cable is described as long enough for flexible setup and not cheap or flimsy.

Product 2: Razer BlackWidow V4 Pro
4.0

Cable quality is good, with braided detachable cables repeatedly noted, though the dual-cable setup adds clutter if passthrough is enabled.

compatibility
Product 1: Logitech G915 X Lightspeed
4.2

Evidence shows the keyboard working across Windows, Mac, tablets, and secondary devices, though Bluetooth device switching is not always as flexible as some rivals.

Product 2: Razer BlackWidow V4 Pro
2.5

Compatibility is limited by platform support; one review specifically calls out weak Mac support and points users toward Windows for the full experience.

connectivity
Product 1: Logitech G915 X Lightspeed
4.7

Tri-mode connectivity is a major strength, with wired, Bluetooth, and Lightspeed support repeatedly praised for easy switching.

Product 2: Razer BlackWidow V4 Pro
3.3

Connectivity is functional but not especially flexible: the board is wired, supports passthrough, and benefits from that for low latency, but several reviews note the loss of wireless.

customization options
Product 1: Logitech G915 X Lightspeed
4.8

Customization depth stands out thanks to extensive remapping, layered functions, and broad software control over keys and actions.

Product 2: Razer BlackWidow V4 Pro
4.8

Overall customization is exceptional, especially around key remapping, dial modes, lighting, and workflow tuning.

desk space efficiency
Product 1: Logitech G915 X Lightspeed
3.7

Space efficiency depends on version: TKL coverage highlights a compact footprint, while full-size use takes noticeably more desk room.

Product 2: Razer BlackWidow V4 Pro
2.0

Desk-space efficiency is poor. Reviewers repeatedly note that the macro column and large wrist rest make the board hard to justify on tighter setups.

durability
Product 1: Logitech G915 X Lightspeed
4.7

Durability evidence is positive, with one review reporting the board still worked after water exposure and others emphasizing wear-resistant PBT caps.

Product 2: Razer BlackWidow V4 Pro
4.5

Durability evidence centers on the rated 100 million keystroke lifespan and the generally robust construction.

ease of switch replacement
Product 1: Logitech G915 X Lightspeed
1.3

Switch replacement is a weak point because the switches are soldered, and one reviewer describes out-of-warranty replacement as major surgery.

Product 2: Razer BlackWidow V4 Pro
2.0

Switch replacement is not especially easy because the board is not hot-swappable, so changing switches is more restrictive than on enthusiast-oriented alternatives.

ergonomics
Product 1: Logitech G915 X Lightspeed
4.4

The low-profile design and light actuation help comfort and speed for many users, although angle and layout are not ideal for everyone.

Product 2: Razer BlackWidow V4 Pro
3.8

Ergonomics are good in some respects thanks to the wrist rest and comfortable key shapes, but the added side and left macro controls can interfere with hand placement until you adapt.

extra gaming features
Product 1: Logitech G915 X Lightspeed
4.7

Game mode and dedicated extra keys add useful gaming-specific control, especially for locking keys and assigning shortcuts.

Product 2: Razer BlackWidow V4 Pro
4.5

Extra gaming features are plentiful, including macro keys, command-dial functions, polling-rate options, and other gaming-focused controls.

frame rigidity
Product 1: Logitech G915 X Lightspeed
4.8

The chassis is repeatedly described as rigid and stable, with little to no flex in normal use.

Product 2: Razer BlackWidow V4 Pro
4.7

Frame rigidity is excellent, with the board repeatedly described as heavy, planted, and difficult to shift once it is on the desk.

gaming performance
Product 1: Logitech G915 X Lightspeed
4.6

Gaming performance is consistently strong, with responsive inputs and no meaningful lag called out in actual play.

Product 2: Razer BlackWidow V4 Pro
4.5

Gaming performance is consistently strong, with reviewers praising smooth inputs, macro advantages, and dependable action across shooters, MMOs, and general gaming.

hot-swappable switches
Product 1: Logitech G915 X Lightspeed
1.0

Multiple reviews explicitly say the switches are not hot-swappable.

Product 2: Razer BlackWidow V4 Pro
1.2

Hot-swappable switches are a clear weakness. Multiple reviewers explicitly note that the full-size V4 Pro does not support hot-swap.

keycap quality
Product 1: Logitech G915 X Lightspeed
4.4

Double-shot PBT keycaps are broadly viewed as an upgrade for durability and texture, even if not every reviewer loves the feel.

Product 2: Razer BlackWidow V4 Pro
3.5

Keycap quality is decent rather than class-leading: reviewers like the shine-through look and texture, but several note the premium price makes the ABS choice harder to forgive.

key responsiveness
Product 1: Logitech G915 X Lightspeed
4.5

The keys are widely described as snappy, responsive, and quick to register.

Product 2: Razer BlackWidow V4 Pro
4.5

Where responsiveness is discussed directly, presses are described as immediate and dependable, with fast recovery under repeated inputs.

key spacing
Product 1: Logitech G915 X Lightspeed
4.5

The roomier spacing on some versions is called helpful for shortcuts and finger placement.

Product 2: Razer BlackWidow V4 Pro
4.3

Key spacing is generally favorable, with reviewers noting enough separation and room to reduce accidental presses once they adjust to the macro-heavy layout.

key stability
Product 1: Logitech G915 X Lightspeed
4.2

Key stability looks improved overall, though one review still notices a minor wobble.

Product 2: Razer BlackWidow V4 Pro
4.5

Stability is strong where reviewers examined wobble directly, with switches and keycaps described as very tight and controlled.

latency
Product 1: Logitech G915 X Lightspeed
4.8

Wireless latency is repeatedly described as very low and close to wired behavior.

Product 2: Razer BlackWidow V4 Pro
4.8

Latency is a clear strength in the full-size model, with reviewers repeatedly describing inputs as instantaneous, lag-free, and especially strong for wired competitive play.

layout options
Product 1: Logitech G915 X Lightspeed
4.7

Review coverage confirms both full-size and TKL layout options in the lineup.

Product 2: Razer BlackWidow V4 Pro
No score yet
legend visibility
Product 1: Logitech G915 X Lightspeed
3.5

Legend visibility is good with lighting on, but some reviews say readability drops when RGB is off or coverage is uneven on certain keys.

Product 2: Razer BlackWidow V4 Pro
3.0

Legend visibility is mixed. Main legends are praised for shine-through readability, but several reviewers say the media-button legends are too dark or hard to see.

macro customization
Product 1: Logitech G915 X Lightspeed
4.8

Macro support is a real strength, with dedicated G keys, KEYCONTROL, direct recording, and layered assignment options.

Product 2: Razer BlackWidow V4 Pro
4.6

Macro customization is a major strength. Across many reviews, the board’s macro keys and remapping options are described as flexible, powerful, and useful for both games and productivity.

materials quality
Product 1: Logitech G915 X Lightspeed
4.8

Brushed aluminum and upgraded PBT caps are repeatedly highlighted as premium material choices.

Product 2: Razer BlackWidow V4 Pro
4.3

Material quality is strong overall thanks to the aluminum top case and premium-feeling finishes, though the plastic lower shell keeps it from feeling fully top-tier throughout.

media controls
Product 1: Logitech G915 X Lightspeed
4.8

Dedicated media controls are consistently useful and well executed.

Product 2: Razer BlackWidow V4 Pro
4.5

Media controls are widely praised for convenience and feel, making everyday playback adjustments easier.

noise level
Product 1: Logitech G915 X Lightspeed
3.4

Noise varies by switch and preference, ranging from office-manageable to quite loud during heavy typing.

Product 2: Razer BlackWidow V4 Pro
2.0

Noise level depends heavily on switch choice, but the Green version is explicitly described as very loud.

onboard memory
Product 1: Logitech G915 X Lightspeed
3.8

Some settings and profiles can be stored on the device, but richer behavior and complex macros still depend heavily on software.

Product 2: Razer BlackWidow V4 Pro
3.8

Onboard memory exists and stores profiles, but some custom behavior still depends on Synapse, so the onboard implementation is useful without being fully self-sufficient.

passthrough features
Product 1: Logitech G915 X Lightspeed
No score yet
Product 2: Razer BlackWidow V4 Pro
3.6

USB passthrough is useful for low-power accessories and convenient desk routing, but reviewers note bandwidth or power limitations and the need for a second cable.

per-key lighting control
Product 1: Logitech G915 X Lightspeed
4.8

Per-key lighting control is clearly supported, with individual key color changes available in software.

Product 2: Razer BlackWidow V4 Pro
4.5

Per-key lighting control is supported and called out directly, alongside underglow zones for a more elaborate lighting setup.

polling rate
Product 1: Logitech G915 X Lightspeed
3.8

Evidence supports a gaming-grade 1000 Hz report rate, but not a class-leading one versus faster rivals.

Product 2: Razer BlackWidow V4 Pro
4.5

The board’s adjustable polling rate and 8,000Hz ceiling are repeatedly highlighted as premium gaming features, even if some reviewers note many players may not fully notice the difference.

portability
Product 1: Logitech G915 X Lightspeed
4.0

The slim design helps portability, especially for TKL coverage, but full-size versions are less bag-friendly.

Product 2: Razer BlackWidow V4 Pro
1.8

Portability is poor. The full-size body, added macro column, and overall heft make this a desk board rather than a travel-friendly one.

profile management
Product 1: Logitech G915 X Lightspeed
4.6

App-specific and game-specific profile management is supported and repeatedly mentioned as useful.

Product 2: Razer BlackWidow V4 Pro
4.2

Profile management is solid, with multiple reviews confirming onboard profiles and quick switching for different tasks.

rapid trigger support
Product 1: Logitech G915 X Lightspeed
1.1

Reviews explicitly note that rapid trigger support is absent, with some rivals offering it instead.

Product 2: Razer BlackWidow V4 Pro
No score yet
reliability
Product 1: Logitech G915 X Lightspeed
4.7

Day-to-day reliability is positive in the evidence, with reviewers reporting stable use and no meaningful issues.

Product 2: Razer BlackWidow V4 Pro
2.9

Reliability is mixed. Reviews mention lighting glitches, occasional wrist-rest connection issues, accidental side-button presses, and some software inconsistency.

RGB customization
Product 1: Logitech G915 X Lightspeed
4.6

RGB customization is deep overall, with broad effect and assignment control, though one review wanted more flexible effect mixing.

Product 2: Razer BlackWidow V4 Pro
4.5

RGB customization is robust through Synapse and Chroma, including synchronized effects and game-aware lighting options.

RGB lighting quality
Product 1: Logitech G915 X Lightspeed
4.4

Lighting is generally bright and attractive, with only minor complaints about coverage or presentation in some cases.

Product 2: Razer BlackWidow V4 Pro
4.6

RGB lighting quality is one of the board’s standout features, with reviewers repeatedly praising the brightness, underglow, wrist-rest lighting, and overall presentation.

size and form factor
Product 1: Logitech G915 X Lightspeed
4.6

The low-profile, ultra-thin form factor is one of the product's biggest strengths, though full-size versions take more room.

Product 2: Razer BlackWidow V4 Pro
3.1

The full-size form factor gives buyers every control they could want, but several reviewers stress that it is undeniably big and best suited to larger desks.

software quality
Product 1: Logitech G915 X Lightspeed
3.5

G Hub offers a lot of power, but the reviews are mixed: some find it clean and easy, while others call it overcomplicated, unintuitive, or unstable.

Product 2: Razer BlackWidow V4 Pro
3.4

Software quality is mixed. Synapse is often called easy enough to use, but many reviews criticize its background dependency, resource use, or occasional inconsistency.

sound dampening
Product 1: Logitech G915 X Lightspeed
3.1

Sound dampening is only moderate because some reviews mention rattling, ping, or a lack of deeper sound tuning.

Product 2: Razer BlackWidow V4 Pro
4.3

Sound dampening is a genuine plus, with multiple reviewers noticing that the internal foam cuts down ping, reverb, and harsher case noise.

stabilizer quality
Product 1: Logitech G915 X Lightspeed
4.8

At least one review specifically praises the space bar as solid and stable.

Product 2: Razer BlackWidow V4 Pro
4.3

Stabilizers are better than expected for a mainstream gaming board, with reviewers noting improved stability, low rattle, and effective factory lubrication.

switch feel
Product 1: Logitech G915 X Lightspeed
4.4

Switch feel is generally satisfying and responsive, though some reviewers mention resistance, mushiness, or adaptation issues.

Product 2: Razer BlackWidow V4 Pro
4.3

Across multiple switch variants, reviewers describe the switch feel as smooth, fast, and satisfying, with Yellow switches especially easy to game on and Green switches still enjoyable for clicky fans.

switch options
Product 1: Logitech G915 X Lightspeed
4.7

The lineup consistently offers tactile, linear, and clicky switch options.

Product 2: Razer BlackWidow V4 Pro
4.0

Reviews confirm two stock switch choices, Green clicky and Yellow linear, which gives buyers a basic choice but not a broad menu of switch options.

typing comfort
Product 1: Logitech G915 X Lightspeed
3.9

Typing comfort is good for many users thanks to the low profile, but layout and angle can still hurt comfort for others.

Product 2: Razer BlackWidow V4 Pro
4.0

Typing comfort is generally good for long sessions, though not every switch variant feels equally cushioned for extended writing.

typing feel
Product 1: Logitech G915 X Lightspeed
4.1

The typing experience lands well for several reviewers, though it is not universally praised.

Product 2: Razer BlackWidow V4 Pro
4.0

Typing feel is generally praised for being fast and satisfying, though it depends somewhat on switch choice and the board’s larger layout.

value for money
Product 1: Logitech G915 X Lightspeed
3.3

The feature set is strong, but the premium price keeps value mixed rather than an obvious win.

Product 2: Razer BlackWidow V4 Pro
3.9

Value depends on whether you will use the extra features. Many reviewers think the feature set helps justify the price, but several still call the board expensive.

volume control
Product 1: Logitech G915 X Lightspeed
4.7

The volume roller or wheel is one of the most consistently praised physical controls on the board.

Product 2: Razer BlackWidow V4 Pro
4.5

Volume control is a strong point, with the roller or dial repeatedly described as smooth, satisfying, and easy to use.

wireless performance
Product 1: Logitech G915 X Lightspeed
4.7

Wireless performance is widely described as stable, fast, and close to wired use, with generally strong range.

Product 2: Razer BlackWidow V4 Pro
No score yet
wrist rest quality
Product 1: Logitech G915 X Lightspeed
1.0

Reviews note that no wrist rest or palm rest is included, so support in this area is limited.

Product 2: Razer BlackWidow V4 Pro
4.4

Wrist rest quality is one of the most praised parts of the package, with reviewers repeatedly calling it soft, comfortable, and premium, even if a few mention connection or height quirks.