Average score
Product 1: Logitech G915 Lightspeed
4.0
Product 2: Logitech G515 Rapid
3.9
acoustics
Product 1: Logitech G915 Lightspeed
3.9

The clicky sound remains clearly mechanical, but several reviewers found the overall tone less harsh than some louder full-height competitors.

Product 2: Logitech G515 Rapid
4.5

Reviewers describe the keyboard as quieter than clicky boards, with a short, refined sound rather than a loud clatter.

actuation consistency
Product 1: Logitech G915 Lightspeed
4.4

The switches make the actuation point easy to sense, and long-term use reports mention no double presses or missed behavior.

Product 2: Logitech G515 Rapid
4.3

The adjustable actuation and release tuning is repeatedly framed as useful for dialing in consistent response, whether the goal is speed or fewer accidental inputs.

analog input support
Product 1: Logitech G915 Lightspeed
No score yet
Product 2: Logitech G515 Rapid
4.5

The magnetic analog switches are described as reading input across their travel, giving the board true analog-style depth awareness rather than a single fixed trigger point.

backlight brightness
Product 1: Logitech G915 Lightspeed
4.4

The backlight is bright enough to stand out in brighter rooms and includes multiple brightness levels for adjustment.

Product 2: Logitech G515 Rapid
4.0

Backlighting is described as strong on the main keys, with bold, bright illumination in normal use.

battery life
Product 1: Logitech G915 Lightspeed
4.5

Battery life is a clear positive, with repeated 30-hour-at-max-brightness style results and much longer endurance once lighting is reduced or idle dimming kicks in.

Product 2: Logitech G515 Rapid
No score yet
build quality
Product 1: Logitech G915 Lightspeed
4.8

The board consistently comes across as premium and sturdy, with reviewers highlighting solid construction rather than a hollow or cheap-feeling shell.

Product 2: Logitech G515 Rapid
4.5

Across reviews, the chassis is consistently described as sturdy, well-built, dense, and rock solid for a slim keyboard.

cable quality
Product 1: Logitech G915 Lightspeed
4.0

The included charging cable is described as braided and nicely finished, though cable discussion is limited in the review set.

Product 2: Logitech G515 Rapid
No score yet
compatibility
Product 1: Logitech G915 Lightspeed
4.5

Review evidence shows the G915 working across common desktop operating systems and with mobile devices over Bluetooth.

Product 2: Logitech G515 Rapid
4.0

One review explicitly lists support for Windows 10/11 PCs and macOS 12 or later.

connectivity
Product 1: Logitech G915 Lightspeed
4.7

Connectivity is a major strength, with Lightspeed, Bluetooth, and wired charging or use all appearing in the review evidence.

Product 2: Logitech G515 Rapid
2.5

The G515 Rapid TKL is consistently described as wired-only, which helps performance but limits versatility versus wireless alternatives.

customization options
Product 1: Logitech G915 Lightspeed
4.8

Beyond RGB alone, reviewers describe a deep overall customization stack covering effects, key assignments, macros, and presets.

Product 2: Logitech G515 Rapid
4.5

Customization is one of the keyboard's headline strengths, with repeated praise for per-key actuation tuning, remapping, multi-action inputs, and broader key personalization.

desk space efficiency
Product 1: Logitech G915 Lightspeed
2.5

Despite the slim deck, the full-size width and extra key columns still eat noticeable desk space.

Product 2: Logitech G515 Rapid
4.5

The tenkeyless low-profile design is repeatedly credited with saving desk space and leaving more room for mouse movement.

durability
Product 1: Logitech G915 Lightspeed
4.5

Durability feedback is strong, from impact anecdotes to long-term reports of grips and hardware holding up over time.

Product 2: Logitech G515 Rapid
4.3

Durability is a positive theme, with reviewers pointing to durable switch tech, long-lasting keycaps, and a sturdy overall build.

ergonomics
Product 1: Logitech G915 Lightspeed
4.4

Low height plus adjustable feet help the keyboard sit comfortably, and reviewers describe the layout as easy to settle into.

Product 2: Logitech G515 Rapid
4.3

The low-profile shape and adjustable feet are described as comfortable to use and easier on the wrists over longer sessions.

extra gaming features
Product 1: Logitech G915 Lightspeed
4.5

Game mode, disable-key options, and macro or profile extras give the G915 more gaming-specific utility than a basic wireless keyboard.

Product 2: Logitech G515 Rapid
4.5

Competitive-focused extras such as key priority, SOCD-style behavior, game mode, and other advanced gaming functions are repeatedly highlighted.

frame rigidity
Product 1: Logitech G915 Lightspeed
4.7

Even with the ultra-thin chassis, reviewers describe the frame as rigid and solid rather than flexy.

Product 2: Logitech G515 Rapid
4.5

A steel top plate and low-flex construction give the board strong rigidity despite its slim profile.

gaming performance
Product 1: Logitech G915 Lightspeed
4.4

Across written and video reviews, the G915 feels fast and accurate in games, with low-profile switches offering a slight speed edge without obvious compromises.

Product 2: Logitech G515 Rapid
4.7

Gaming performance is the product's clearest strength, with reviewers repeatedly calling it fast, precise, and especially good for competitive play.

keycap quality
Product 1: Logitech G915 Lightspeed
3.5

Keycap impressions are mixed: some praise the coating and molding, while long-term users call them wobbly, small, or prone to visible wear.

Product 2: Logitech G515 Rapid
4.5

The keycaps are repeatedly described as premium-feeling PBT caps with good texture and better long-term quality than cheaper alternatives.

key responsiveness
Product 1: Logitech G915 Lightspeed
4.5

The low-profile switches are repeatedly described as speedy and responsive, with fast registration that suits both gaming and quick general use.

Product 2: Logitech G515 Rapid
4.5

Reviewers consistently describe the keys as quick to react, precise in motion, and strong for fast gaming inputs.

key spacing
Product 1: Logitech G915 Lightspeed
3.1

The smaller, closely packed low-profile keycaps can lead to accidental adjacent-key presses until you adapt.

Product 2: Logitech G515 Rapid
3.3

Key spacing gets mixed commentary: some reviewers say the layout does not feel cramped, while others note the tighter spacing can cause occasional missteps.

key stability
Product 1: Logitech G915 Lightspeed
4.0

Although one review mentions some wiggle when keys are deliberately moved, it still reports a stable base during actual typing.

Product 2: Logitech G515 Rapid
3.0

Key stability is mostly good, but one reviewer specifically noted minor wobble on some caps during rapid presses.

latency
Product 1: Logitech G915 Lightspeed
4.5

Lightspeed input delay is effectively absent in review use, with reviewers saying it feels immediate or imperceptible in practice.

Product 2: Logitech G515 Rapid
5.0

One review explicitly frames the wired connection as delivering zero latency, no interference, and no input drops.

layout options
Product 1: Logitech G915 Lightspeed
3.1

The review set mainly describes a full-size, macro-heavy layout rather than a broad range of built-in layout variants.

Product 2: Logitech G515 Rapid
No score yet
legend visibility
Product 1: Logitech G915 Lightspeed
2.7

Main legends are readable and shine through, but secondary characters or smaller legends are a recurring weakness.

Product 2: Logitech G515 Rapid
2.5

Legend visibility is mixed to poor on some keys, with repeated notes about uneven illumination on larger legends and limited local-language backlighting.

macro customization
Product 1: Logitech G915 Lightspeed
4.6

Macro support is a standout feature, with programmable G keys and even on-board recording in the review evidence.

Product 2: Logitech G515 Rapid
4.5

Macro and multi-step input support is a clear feature, with reviews mentioning recorded macros, personalized macros, and dynamic or multi-action key behavior.

materials quality
Product 1: Logitech G915 Lightspeed
4.5

Materials feel upscale for a gaming keyboard, with recurring mentions of aluminum surfaces paired with sturdy plastic reinforcement.

Product 2: Logitech G515 Rapid
4.2

Materials quality is generally strong thanks to the steel plate and PBT caps, though one review notes the broader package still feels more plastic than some rivals.

media controls
Product 1: Logitech G915 Lightspeed
4.4

Dedicated media buttons are consistently viewed as a genuine convenience rather than a throw-in extra.

Product 2: Logitech G515 Rapid
1.9

Dedicated media controls are a common omission across reviews, with multiple writers calling out the lack of easy-access playback controls.

noise level
Product 1: Logitech G915 Lightspeed
3.2

Noise depends on switch choice, but the clicky version is still loud enough to be questionable in shared spaces despite being quieter than some rivals.

Product 2: Logitech G515 Rapid
4.5

Noise output is a strength: the board is repeatedly described as quiet, reduced in audible feedback, and free of unwanted echo.

onboard memory
Product 1: Logitech G915 Lightspeed
4.2

Onboard memory is present for saving profiles or settings directly to the keyboard, reducing dependence on software after setup.

Product 2: Logitech G515 Rapid
3.5

Onboard profiles are available, but at least one reviewer notes that accessing and saving them is less direct than it should be.

passthrough features
Product 1: Logitech G915 Lightspeed
1.0

The G915 does not include USB passthrough, and that missing feature is explicitly called out.

Product 2: Logitech G515 Rapid
No score yet
per-key lighting control
Product 1: Logitech G915 Lightspeed
4.5

Review evidence supports granular lighting control, including direct per-key programming and custom schemes through G Hub.

Product 2: Logitech G515 Rapid
4.5

Per-key lighting control is supported, with reviewers specifically mentioning per-key RGB customization and individual-key lighting changes in software.

polling rate
Product 1: Logitech G915 Lightspeed
4.5

Two reviews explicitly call out the fast wireless report rate, citing 1ms or 1,000Hz behavior consistent with premium gaming boards.

Product 2: Logitech G515 Rapid
3.5

The board is explicitly described as using a stable 1,000 Hz polling rate, but it is also noted that it does not reach 8,000 Hz.

portability
Product 1: Logitech G915 Lightspeed
3.3

The keyboard benefits from being slim and cordless, but its full-size footprint keeps it from being especially travel-friendly.

Product 2: Logitech G515 Rapid
4.5

Its light weight and slim TKL footprint make it easier to place and carry than bulkier full-height boards.

profile management
Product 1: Logitech G915 Lightspeed
4.4

The keyboard supports multiple profiles and app-linked behavior, though some setup paths in software can be a little confusing.

Product 2: Logitech G515 Rapid
3.3

Profile support exists, but reviewers report some friction around profile saving, switching, or reliability depending on the setup.

rapid trigger support
Product 1: Logitech G915 Lightspeed
No score yet
Product 2: Logitech G515 Rapid
4.5

Rapid Trigger support is repeatedly highlighted as a major feature and one of the biggest practical gaming benefits of the keyboard.

reliability
Product 1: Logitech G915 Lightspeed
4.5

Longer-term reports are encouraging, with no key failures mentioned and the board continuing to function properly over time.

Product 2: Logitech G515 Rapid
4.5

General reliability is positive, with reviews describing the board as consistently responsive in use and software that stays stable during operation.

RGB customization
Product 1: Logitech G915 Lightspeed
4.8

RGB customization is a strength, with broad effect choices and enough flexibility to create game- or mood-specific lighting setups.

Product 2: Logitech G515 Rapid
4.5

RGB customization is broad, with software control over colors, effects, and other lighting behavior receiving positive mention.

RGB lighting quality
Product 1: Logitech G915 Lightspeed
4.0

Lighting is generally vivid and bright, but several reviewers also note light bleed and less-than-perfect sharpness around the keys.

Product 2: Logitech G515 Rapid
3.7

Lighting quality is generally attractive and vibrant, but multiple reviews also note uneven illumination on larger keys or legends.

size and form factor
Product 1: Logitech G915 Lightspeed
3.7

The G915 is impressively thin for a wireless mechanical board, but the full-size body keeps it from feeling compact overall.

Product 2: Logitech G515 Rapid
4.5

The keyboard's form factor is a major selling point: it is repeatedly described as a very slim 22 mm low-profile TKL board.

software quality
Product 1: Logitech G915 Lightspeed
4.3

G Hub is usually praised for broad features and usability, but not every reviewer found the profile or onboard-memory flow intuitive.

Product 2: Logitech G515 Rapid
3.9

G Hub is widely seen as powerful and feature-rich, but several reviews also describe it as clunky, less friendly, or awkward in some workflows.

sound dampening
Product 1: Logitech G915 Lightspeed
No score yet
Product 2: Logitech G515 Rapid
4.5

Dampening layers and a sound-dampened chassis help suppress echo and soften impact noise.

stabilizer quality
Product 1: Logitech G915 Lightspeed
No score yet
Product 2: Logitech G515 Rapid
4.5

At least one review specifically praises the board for feeling free of rattle and for keeping the keys properly stabilized.

switch feel
Product 1: Logitech G915 Lightspeed
4.4

Reviewers describe the GL switches as pleasant and buttery once adjusted, with low-profile travel that still feels distinct rather than mushy.

Product 2: Logitech G515 Rapid
4.5

Switch feel is generally praised for being smooth and satisfying, though the softer low-profile character is not ideal for everyone.

switch options
Product 1: Logitech G915 Lightspeed
4.5

Multiple reviews note three switch choices—clicky, tactile, and linear—giving buyers real feel options instead of a one-switch lineup.

Product 2: Logitech G515 Rapid
No score yet
typing comfort
Product 1: Logitech G915 Lightspeed
4.1

Typing comfort is generally strong, especially once adjusted to the low-profile design, though a few reviewers reported an initial accuracy penalty.

Product 2: Logitech G515 Rapid
4.3

Typing comfort is generally good thanks to the quiet low-profile design and reduced strain over longer sessions.

typing feel
Product 1: Logitech G915 Lightspeed
4.4

Typing feels smoother and more laptop-like than on a traditional tall mechanical board, which some reviewers ended up preferring.

Product 2: Logitech G515 Rapid
2.5

Typing feel is the main tradeoff: several reviewers call it soft, mushy, hollow, or less satisfying than taller or more tactile alternatives.

value for money
Product 1: Logitech G915 Lightspeed
2.3

Most reviewers love the feature set but still treat the price as the biggest barrier, especially versus cheaper wired alternatives.

Product 2: Logitech G515 Rapid
2.8

Value is divisive. Some reviewers think the specialized performance justifies the price, while others see the wired design and omissions as weak value.

volume control
Product 1: Logitech G915 Lightspeed
4.4

The volume wheel is widely praised for feel and convenience, although one review noticed some lag in on-screen response.

Product 2: Logitech G515 Rapid
2.0

Volume adjustment exists, but the lack of a dedicated dial or wheel is a recurring complaint.

wireless performance
Product 1: Logitech G915 Lightspeed
4.4

Lightspeed wireless performance is usually described as wired-like and reliable, though one long-term user reported poor range without careful dongle placement.

Product 2: Logitech G515 Rapid
1.5

Wireless performance is effectively absent because this model is wired-only, and several reviewers treat that missing convenience as a meaningful downside.

wrist rest quality
Product 1: Logitech G915 Lightspeed
1.4

There is no included wrist rest, which reviewers repeatedly flag as a miss at this price even if the low profile reduces the need somewhat.

Product 2: Logitech G515 Rapid
No score yet