Average score
Product 1: Corsair M75 AIR Wireless
3.9
Product 2: ASUS ROG Keris II Ace
4.3
2.4GHz connectivity
Product 1: Corsair M75 AIR Wireless
4.3

Reviews repeatedly confirm 2.4GHz/Slipstream wireless support, usually positioning it as the faster gaming-oriented connection and often pairing it with dongle storage or low-latency claims.

Product 2: ASUS ROG Keris II Ace
4.6

Reviews that discussed wireless modes consistently describe 2.4GHz connectivity as a core option alongside Bluetooth and wired use. The evidence supports strong coverage for 2.4GHz operation, including receiver storage, tri-mode connectivity, and pairing through the main wireless receiver.

acceleration control
Product 1: Corsair M75 AIR Wireless
No score yet
Product 2: ASUS ROG Keris II Ace
4.8

Sensor acceleration specs were consistently described as high-end, with reviewers citing 50G acceleration alongside 750 IPS speed. The evidence supports strong acceleration capability, though it is presented as sensor performance rather than a separate user-facing tuning feature.

Accuracy and tracking precision
Product 1: Corsair M75 AIR Wireless
4.6

Reviewers consistently describe the mouse as accurate and precise, with strong tracking for aiming, sniping, flicking, and competitive play. A few critiques focus on surrounding design issues rather than raw accuracy.

Product 2: ASUS ROG Keris II Ace
4.7

Tracking precision was repeatedly praised. Reviewers described near-perfect accuracy, high precision, accurate tracking, and jitter-free performance, with only one review noting high-DPI irregularity at extreme settings.

balance and weight distribution
Product 1: Corsair M75 AIR Wireless
2.7

Weight distribution is mixed. Some criticism says the heavier M75 Wireless feels unbalanced or awkwardly distributed, while one M75 Air review reports good in-game balance.

Product 2: ASUS ROG Keris II Ace
4.5

Most reviewers who discussed balance found the mouse light and well balanced. One teardown-style review noted a slightly forward balance point, but the broader evidence describes the mouse as comfortable to move without obvious front or rear weight bias.

battery life
Product 1: Corsair M75 AIR Wireless
4.3

Battery life is generally praised, especially on Bluetooth or with RGB off. Air-focused reviews mention shorter 2.4GHz endurance, while M75 Wireless reviews often cite substantially longer figures.

Product 2: ASUS ROG Keris II Ace
4.3

Battery life is generally strong, with many reviews citing 107 hours at 2.4GHz with lighting off or strong real-world endurance. Higher polling rates and RGB reduce runtime, and one review measured lower Wi-Fi runtime with default lighting.

Bluetooth support
Product 1: Corsair M75 AIR Wireless
4.1

Bluetooth support is widely confirmed and usually framed as a useful secondary connection, especially for longer battery life or non-gaming use, while 2.4GHz is treated as the preferred gaming mode.

Product 2: ASUS ROG Keris II Ace
4.5

Bluetooth support is widely confirmed and treated as a useful convenience feature. Reviews describe Bluetooth pairing, multi-device Bluetooth use, and longer battery life in Bluetooth mode, while noting that it is not the low-latency competitive mode.

build quality
Product 1: Corsair M75 AIR Wireless
4.2

Build quality ranges from excellent to merely acceptable. Several reviews call the body solid with little flex, but a few Air reviews say the plastic feels cheap or not especially robust.

Product 2: ASUS ROG Keris II Ace
4.3

Build quality is mostly positive, with reviewers describing a sturdy, solid shell and little flex or creaking. A few reviewers found the build merely average or noted minor rattle, so the evidence is strong but not flawless.

button customization
Product 1: Corsair M75 AIR Wireless
4.1

Button customization is a clear strength where iCUE is accepted: reviewers mention remapping, assigning commands, macros, side-button modes, and configuration through software.

Product 2: ASUS ROG Keris II Ace
4.4

Button customization is well supported through Armoury Crate or onboard controls. Reviewers cite remapping inputs, assigning commands, programmable controls, and hardware-based adjustments for key settings.

button responsiveness
Product 1: Corsair M75 AIR Wireless
4.5

Button responsiveness is mostly positive, with reviewers describing quick, responsive clicks and strong in-game registration. Criticism is more about travel, noise, or side-button shape than responsiveness itself.

Product 2: ASUS ROG Keris II Ace
4.7

Button responsiveness is consistently praised. Reviewers cite snappy registration, lightning-quick actuation, responsive clicks, and short-travel optical buttons that support fast inputs.

cable flexibility
Product 1: Corsair M75 AIR Wireless
3.5

Cable feedback is mixed. Some reviews call the cable decent or praise USB-C clearance, but others describe the cable as stiff or not as flexible as low-drag alternatives.

Product 2: ASUS ROG Keris II Ace
4.5

Cable flexibility is a strength overall. Several reviewers praised the paracord as flexible, tangle-free, or drag-reducing, though one reviewer found it long enough but somewhat stiff while charging.

charging convenience
Product 1: Corsair M75 AIR Wireless
4.3

Charging convenience is supported by USB-C charging, wired use while charging, and relatively short recharge times cited by several reviewers. Some setup and cable comments are less positive.

Product 2: ASUS ROG Keris II Ace
4.0

Charging and setup convenience are mixed. One review says USB-C charging is quick and painless, while another liked the adapter/booster setup but noted the connection stack could feel loose.

claw grip comfort
Product 1: Corsair M75 AIR Wireless
4.1

Claw grip support is generally good, especially on the M75 Wireless and some Air reviews. A few reviewers with particular hand sizes found claw grip less ideal or needed adaptation.

Product 2: ASUS ROG Keris II Ace
4.4

Claw grip comfort is supported for many hand sizes. Reviews mention all-grip compatibility, relaxed claw comfort, and claw grip usefulness, though one detailed review cautions that fit depends on hand size.

click latency
Product 1: Corsair M75 AIR Wireless
4.7

Click latency is one of the stronger areas: reviewers mention zero-delay/zero-gap switches, near-instant response, unnoticeable delay, and debounce-free optical click behavior.

Product 2: ASUS ROG Keris II Ace
4.6

Click latency is a clear strength. Reviews cite latency reduction from high polling, measured low click latency, no latency issues, and low wireless click latency measurements.

click noise
Product 1: Corsair M75 AIR Wireless
3.3

Click noise is mixed. Several reviewers describe loud, audible, hollow, or noisy clicks, while others like the thocky character or find the primary buttons controlled enough.

Product 2: ASUS ROG Keris II Ace
4.4

Click noise is mixed but generally acceptable. Some reviews described the switches as quiet or quieter than competitors, while another found the optical clicks loud.

connection stability
Product 1: Corsair M75 AIR Wireless
4.3

Connection stability is mostly positive, with many reviewers reporting no lag, no connectivity issues, or a solid wireless link. One review found wireless update-time spikes compared with Razer.

Product 2: ASUS ROG Keris II Ace
4.7

Connection stability is strong across the reviews that tested it. Reviewers mention tri-mode connectivity, no delays, no hiccups, no dropouts, and stable Bluetooth or wireless switching.

cross-platform compatibility
Product 1: Corsair M75 AIR Wireless
4.4

Cross-platform compatibility is directly supported by Windows/macOS compatibility and a review noting use with computers or consoles, though this is not a major focus across the review set.

Product 2: ASUS ROG Keris II Ace
4.6

Cross-device use is supported mainly through Bluetooth and multi-device pairing. Reviewers cite simultaneous pairing with multiple devices, multi-device setup versatility, and the ability to pair up to three devices.

debounce customization
Product 1: Corsair M75 AIR Wireless
4.0

Debounce-related customization is lightly supported through a button optimization setting rather than extensive debounce controls, so the evidence is narrow.

Product 2: ASUS ROG Keris II Ace
2.3

Debounce customization is weak. The available evidence says debounce was 0ms and not adjustable, and another review states there was no debounce setting in the software.

DPI range
Product 1: Corsair M75 AIR Wireless
3.9

DPI range is strongly supported through repeated 26,000 DPI/26K references and 1-DPI adjustment mentions. The main criticism is hardware access to DPI changes, especially on the Air.

Product 2: ASUS ROG Keris II Ace
4.9

The DPI range is one of the clearest strengths. Reviewers repeatedly cite 42,000 DPI or CPI and describe it as unusually high, although some note that most users will not need the upper end.

durability over time
Product 1: Corsair M75 AIR Wireless
4.2

Durability over time is supported by 100-million-click optical-switch ratings, warranty coverage, and durable cable comments. Long-term wear testing is limited.

Product 2: ASUS ROG Keris II Ace
4.6

Durability over time is supported mainly through switch behavior. One review specifically links optical switches to consistent long-term performance and reduced double-click risk.

ecosystem integration
Product 1: Corsair M75 AIR Wireless
3.9

Ecosystem integration is mainly through Corsair iCUE, system monitoring, Corsair peripheral consolidation, and onboard settings that reduce the need to keep software open.

Product 2: ASUS ROG Keris II Ace
4.4

Ecosystem integration is present through Aura Sync and the ROG Omni receiver. Reviewers cite lighting sync with compatible devices and using one receiver for multiple ROG peripherals.

ergonomic design
Product 1: Corsair M75 AIR Wireless
4.0

Ergonomic design is generally positive, with reviewers citing comfortable shapes, raised backs, grip support, and practical contours. Some large-hand or grip-specific critiques appear.

Product 2: ASUS ROG Keris II Ace
4.5

The design is clearly ergonomic and right-handed. Reviews describe the curved or ergonomic shape, often tying it to right-handed comfort and ultra-light wireless use.

fingertip grip comfort
Product 1: Corsair M75 AIR Wireless
4.3

Fingertip grip evidence is narrower but positive where mentioned, especially in Air reviews describing the shape as suitable for fingertip use or most grip styles.

Product 2: ASUS ROG Keris II Ace
3.4

Fingertip grip comfort is limited and hand-size dependent. One review says the light weight makes fingertip use possible with grip tape, while another does not recommend fingertip gripping the ergonomic shell.

firmware reliability
Product 1: Corsair M75 AIR Wireless
3.0

Firmware reliability is mixed and limited. One review complains about needing the included cable for firmware/dongle setup, while another only notes firmware update options.

Product 2: ASUS ROG Keris II Ace
No score yet
FPS gaming suitability
Product 1: Corsair M75 AIR Wireless
4.4

FPS suitability is one of the strongest themes. Reviewers repeatedly frame the mouse as fast, precise, responsive, and well suited to FPS or competitive shooter use.

Product 2: ASUS ROG Keris II Ace
4.8

FPS and esports suitability are consistently strong. Reviewers repeatedly frame the mouse around hard-core gameplay, competitive esports, FPS use, high polling, and precision aiming.

glide smoothness
Product 1: Corsair M75 AIR Wireless
4.5

Glide smoothness is widely praised, with many mentions of PTFE feet, smooth glide, low friction, and easy movement. A few heavier M75 Wireless critiques say glide is less effortless.

Product 2: ASUS ROG Keris II Ace
4.6

Glide smoothness is broadly praised. Reviewers cite PTFE feet, smooth glide, controlled movement, and good stock skates, including use on glass in some tests.

grip texture
Product 1: Corsair M75 AIR Wireless
4.0

Grip texture is mixed but generally serviceable. Matte or grippy coatings get praise, while some reviews call the sides slippery, smooth, or lacking grip for certain hands.

Product 2: ASUS ROG Keris II Ace
3.7

Grip texture is the most divisive physical trait. Some reviewers liked the non-slip or textured surface and grip tape, while others found the coating slippery or not secure enough without aftermarket grips.

handedness options
Product 1: Corsair M75 AIR Wireless
4.1

Handedness options depend heavily on variant. M75 Wireless reviews praise true ambidextrous support with side buttons on both sides, while Air reviews note right-handed limitations despite symmetry.

Product 2: ASUS ROG Keris II Ace
3.2

Handedness is limited. Evidence shows the mouse is comfortable for right-handers but not suited for lefties or users wanting an ambidextrous shape.

left and right click quality
Product 1: Corsair M75 AIR Wireless
3.9

Left and right click quality is mostly positive for speed, tactility, and direct feel, though one critical review reports flex and poor implementation on its unit.

Product 2: ASUS ROG Keris II Ace
4.4

Left and right click quality is generally strong, with snappy, tactile, consistent, or solid click feedback across many reviews. Some detailed reviewers still criticized slipperiness or travel on the main buttons.

lift-off distance
Product 1: Corsair M75 AIR Wireless
4.1

Lift-off distance is supported by iCUE options and calibration references, with reviewers mentioning low/medium/high settings or liftoff-distance adjustment.

Product 2: ASUS ROG Keris II Ace
4.2

Lift-off distance support is present through software or onboard controls, but not universally flexible. Reviews mention lift-off adjustment, low/high LOD options, and 1mm/2mm LOD limits.

long-session comfort
Product 1: Corsair M75 AIR Wireless
4.3

Long-session comfort is positive where tested, with reviewers citing all-day comfort, longer-period comfort, and limited hand or wrist fatigue in casual sessions.

Product 2: ASUS ROG Keris II Ace
4.7

Long-session comfort is strong where discussed. Reviewers cite no hand pain, low fatigue, and zero strain over prolonged play, helped by the low weight.

macro support
Product 1: Corsair M75 AIR Wireless
3.9

Macro support exists through iCUE and button assignments, but several reviewers note the limited button count reduces macro-heavy usefulness.

Product 2: ASUS ROG Keris II Ace
4.4

Macro support is available through Armoury Crate. Reviews cite macro recording and saved macros in the software workflow.

materials quality
Product 1: Corsair M75 AIR Wireless
2.9

Materials quality is mixed. Some reviews say the plastic shell still feels premium or not cheap, while others say the Air feels cheap or insufficiently robust for the price.

Product 2: ASUS ROG Keris II Ace
4.3

Materials quality is generally positive, with evidence for PBT buttons, bio-based nylon, rigid shell feel, and textured surfaces. Some reviewers still found the shell feel less premium than rubberized coatings.

MMO gaming suitability
Product 1: Corsair M75 AIR Wireless
2.9

MMO suitability is weak. Reviews repeatedly say the limited button layout is not ideal for MMO/RPG-style play, though one review says the Wireless can work across a variety of games.

Product 2: ASUS ROG Keris II Ace
4.0

MMO suitability is only lightly supported. One review used the mouse in Final Fantasy XIV raids and inventory management, but the review evidence does not present it as a dedicated MMO mouse.

MOBA gaming suitability
Product 1: Corsair M75 AIR Wireless
2.5

MOBA suitability is also limited by the sparse button layout. Some performance reviews include MOBA play, but broader comments say MOBA users often benefit from more buttons.

Product 2: ASUS ROG Keris II Ace
No score yet
motion consistency
Product 1: Corsair M75 AIR Wireless
4.7

Motion consistency is strong where discussed, with reviewers citing smooth tracking, no wobble, no smoothing, and consistent response across aiming movements.

Product 2: ASUS ROG Keris II Ace
4.6

Motion consistency is strong in gameplay, with reviewers citing smooth tracking, granular accuracy, and micro-adjustment precision. MotionSync is present but not configurable in one technical review.

onboard memory
Product 1: Corsair M75 AIR Wireless
4.1

Onboard memory is supported by single-profile storage and hardware assignment references, though reviewers often wish for more profiles.

Product 2: ASUS ROG Keris II Ace
4.5

Onboard memory/profile support is present, with reviews citing hardware-based profiles, onboard controls, and profile switching without needing to keep the software open.

palm grip comfort
Product 1: Corsair M75 AIR Wireless
4.3

Palm grip comfort is generally positive, especially for the raised or high-backed shape. Some Air reviews caution that palm grip works better for certain hand sizes.

Product 2: ASUS ROG Keris II Ace
4.4

Palm grip comfort is positive but not universal. Reviews describe comfortable palm or relaxed palm use, while hand size and the smaller ergonomic shape affect fit.

polling rate
Product 1: Corsair M75 AIR Wireless
3.7

Polling rate evidence is extensive but mixed. Many reviews cite 2,000Hz support, while some say the practical benefit is limited or question whether the claimed rate is achieved.

Product 2: ASUS ROG Keris II Ace
4.7

Polling rate is a headline strength across nearly every review. Evidence repeatedly confirms 4,000Hz wireless polling and 8,000Hz wired polling through the included booster.

portability
Product 1: Corsair M75 AIR Wireless
4.1

Portability is supported by dongle storage, multi-device connection comments, computer/console use, and the general benefits of wireless use.

Product 2: ASUS ROG Keris II Ace
4.5

Portability is supported through bundled accessories, dongle storage, and multi-device use. Reviewers mention grip tape, extra feet, and using one mouse across multiple devices or on the go.

premium feel
Product 1: Corsair M75 AIR Wireless
3.9

Premium feel is mixed. Some reviews say the plastic shell still feels premium, but others describe the experience as below true high-end despite acceptable quality.

Product 2: ASUS ROG Keris II Ace
4.4

Premium feel is present but not unanimous. Some reviewers found the chassis premium and the mouse solid, while others criticized coating and click feel as less premium for the price.

profile switching
Product 1: Corsair M75 AIR Wireless
3.1

Profile switching is weaker than software configuration overall. M75 Wireless has a DPI/profile button, but Air reviews repeatedly miss easy hardware profile or DPI switching.

Product 2: ASUS ROG Keris II Ace
4.1

Profile switching is supported but placement is sometimes criticized. Reviewers cite scenario profiles, saved profiles, and button-combination profile switching, while some dislike the underside DPI/profile control.

programmable buttons
Product 1: Corsair M75 AIR Wireless
3.1

Programmable-button feedback is mixed. The M75 Wireless offers more programmable buttons, while the Air’s sparse five-button setup is often criticized for limiting versatility.

Product 2: ASUS ROG Keris II Ace
4.4

Programmable button coverage is solid for an esports mouse. Reviews cite five or six programmable buttons and programmable controls including scroll functions.

RGB features
Product 1: Corsair M75 AIR Wireless
3.3

RGB features are variant-dependent. M75 Wireless reviews note RGB zones and customization, but several reviewers find them subtle or not very useful; Air reviews note little or no RGB.

Product 2: ASUS ROG Keris II Ace
4.3

RGB features are modest but useful. Reviews focus on the single scroll-wheel RGB zone, customization, battery notifications, and keeping RGB without losing the low weight.

scroll wheel quality
Product 1: Corsair M75 AIR Wireless
3.9

Scroll wheel quality is mixed. Some reviewers praise tactility, grip, or resistance, while others call the wheel stiff, sluggish, scratchy, loud, or less suited to frantic gaming.

Product 2: ASUS ROG Keris II Ace
3.7

Scroll wheel quality is mixed. Some reviewers praised tactile, quiet, or excellent scrolling, while others wanted clearer steps, adjustable resistance, or a more controlled encoder.

sensor performance
Product 1: Corsair M75 AIR Wireless
4.4

Sensor performance is one of the most consistently praised areas, with repeated Marksman 26K references and strong reports of precise, fast, reliable tracking.

Product 2: ASUS ROG Keris II Ace
4.8

Sensor performance is excellent overall. Reviewers cite an accurate high-end sensor, no tracking issue, top-tier performance, glass tracking, and no spinouts or jitter in normal testing.

shape comfort
Product 1: Corsair M75 AIR Wireless
4.3

Shape comfort is generally positive, with reviewers praising the symmetrical or rounded shape and hand feel. Critiques focus on weight, hump placement, or fit for specific grips.

Product 2: ASUS ROG Keris II Ace
4.4

Shape comfort is a major strength for many reviewers, especially for relaxed claw, palm, and small-to-medium ergonomic preferences. A few reviewers reported hand-size mismatch or cramps.

side button quality
Product 1: Corsair M75 AIR Wireless
3.8

Side button quality is sharply mixed. M75 Wireless reviewers like swappable/magnetic versatility, but some find the buttons too flush, fiddly, slick, loose, or hard to trigger.

Product 2: ASUS ROG Keris II Ace
4.1

Side button quality is mixed. Some reviewers loved their placement and crispness, while others found them small, stiff, high, heavy, or less accessible for larger hands.

skate durability
Product 1: Corsair M75 AIR Wireless
2.4

Skate durability is weak. A few reviews report scratches or harsh criticism of stock skates, even when glide itself is often praised.

Product 2: ASUS ROG Keris II Ace
4.1

Skate durability is only moderately supported. One review points to replaceable feet if they wear out, and another describes the stock skates as standard PTFE rather than emphasizing long-term durability.

software stability
Product 1: Corsair M75 AIR Wireless
2.5

Software stability has notable negatives, including setup hassle and a report that iCUE reset Windows mouse settings. Evidence is limited but concerning.

Product 2: ASUS ROG Keris II Ace
2.9

Software stability is a weakness. Reviews describe Armoury Crate as bloated, resource-heavy, and unwieldy, even though some settings can be handled without keeping it open.

software usability
Product 1: Corsair M75 AIR Wireless
4.1

Software usability is mixed-to-positive. Several reviews call iCUE easy, simple, or flexible, while others dislike relying on it for basic DPI and setup.

Product 2: ASUS ROG Keris II Ace
3.6

Software usability is mixed. Some reviewers found configuration simple or the lighter Armoury Crate Gear easier, while others called the software slow, terrible, bloated, or in need of improvement.

surface compatibility
Product 1: Corsair M75 AIR Wireless
4.2

Surface compatibility is generally good through surface calibration and broad tracking reports, but one review notes poor metal-surface performance.

Product 2: ASUS ROG Keris II Ace
4.7

Surface compatibility is very strong. Reviews describe calibration for surfaces, tracking on glass, and reliable tracking across many surfaces or mouse pads.

switch durability
Product 1: Corsair M75 AIR Wireless
4.4

Switch durability is strong on paper, with repeated optical-switch and 100-million-click claims. Some reviews frame optical switches as more reliable than mechanical ones.

Product 2: ASUS ROG Keris II Ace
4.8

Switch durability is a clear strength. Multiple reviews cite the ROG Optical Micro Switches and their 100-million-click rating.

switch feel
Product 1: Corsair M75 AIR Wireless
4.3

Switch feel is mostly positive, with reviewers describing tactile, crispy, thocky, quick, or immediate optical switches. A few click-quality issues appear elsewhere.

Product 2: ASUS ROG Keris II Ace
4.0

Switch feel is divisive. Some reviewers praised crisp, consistent, punchy switches, while others described dull, mushy, hollow, or travel-heavy click feel.

value for money
Product 1: Corsair M75 AIR Wireless
3.2

Value for money is one of the most divided areas. Reviewers praise discounted pricing or performance, but many criticize launch/MSRP pricing, limited features, or competition.

Product 2: ASUS ROG Keris II Ace
3.7

Value is mixed because the performance is high but the price is premium. Several reviewers called it expensive or pricey, while others still found the package justified or worth the money.

weight
Product 1: Corsair M75 AIR Wireless
4.4

Weight is central to the review set. Air reviews praise the 60g ultralight design; M75 Wireless reviews see 89g as still manageable but meaningfully heavier.

Product 2: ASUS ROG Keris II Ace
4.8

Weight is a standout strength. Reviewers repeatedly cite 54g or about 1.9 ounces and praise the control and low fatigue that come from the ultra-light build.

weight tuning
Product 1: Corsair M75 AIR Wireless
2.0

Weight tuning is weak because a review explicitly notes that weight cannot be changed, and the broader review set does not describe adjustable weight support.

Product 2: ASUS ROG Keris II Ace
No score yet
wireless latency
Product 1: Corsair M75 AIR Wireless
4.3

Wireless latency is mostly strong, with repeated sub-1ms, near-zero latency, and responsive-wireless comments. One review found update-time spikes or occasional sync concerns.

Product 2: ASUS ROG Keris II Ace
4.5

Wireless latency is strong in the 2.4GHz mode. Reviewers cite low-latency wireless, low measured wireless click latency, high-polling responsiveness, and no obvious latency problems.

wireless performance
Product 1: Corsair M75 AIR Wireless
4.2

Wireless performance is generally good, with reviewers praising low-latency wireless, multiple connection options, and responsive operation, though Air-versus-Wireless tradeoffs appear.

Product 2: ASUS ROG Keris II Ace
4.7

Wireless performance is consistently strong. Reviewers report good wireless connectivity, no drop in tracking, no hiccups, no stutters, and no dropouts during use.