Average score
Product 1: Logitech G309 Lightspeed
3.9
Product 2: Logitech G502 X Plus
4.2
2.4GHz connectivity
Product 1: Logitech G309 Lightspeed
4.5

Reviews consistently describe two wireless paths: Lightspeed through a USB receiver or dongle and Bluetooth. Lightspeed is framed as the performance-first option.

Product 2: Logitech G502 X Plus
4.3

Reviews support 2.4GHz wireless use through the Lightspeed or USB dongle, with several noting dongle storage or receiver-only operation.

acceleration control
Product 1: Logitech G309 Lightspeed
4.7

Acceleration evidence is limited but positive where discussed: reviewers cite the Hero sensor's 40G acceleration support and zero smoothing, filtering, or acceleration claims.

Product 2: Logitech G502 X Plus
4.4

Acceleration evidence centers on the sensor specification and control behavior: reviews cite up to 40G acceleration, no unwanted smoothing or acceleration, and some limits around angle tuning.

Accuracy and tracking precision
Product 1: Logitech G309 Lightspeed
4.6

Tracking and aim precision are strong themes across reviews, with the mouse described as accurate, precise, quick, and dependable in games and productivity.

Product 2: Logitech G502 X Plus
4.7

Tracking accuracy is one of the strongest areas, with reviewers repeatedly calling the HERO sensor precise, accurate, smooth, or flawless in games and desktop use.

balance and weight distribution
Product 1: Logitech G309 Lightspeed
2.7

Balance is mixed. Reviews that focus on weight distribution often find the AA battery makes the mouse rear-heavy or concentrated toward the center-rear.

Product 2: Logitech G502 X Plus
4.2

Balance receives limited but positive support: one reviewer said the redesigned scroll wheel improved weight balance, while another found the weight balanced in hand.

battery life
Product 1: Logitech G309 Lightspeed
4.4

Battery life is a major strength. Reviews repeatedly cite about 300 hours over Lightspeed or AA power and up to 600 hours over Bluetooth, with PowerPlay removing normal battery worries.

Product 2: Logitech G502 X Plus
4.4

Battery life is generally strong, with many reviews citing 120-140 hours without RGB, while RGB lighting sharply reduces runtime for heavier lighting users.

Bluetooth support
Product 1: Logitech G309 Lightspeed
4.5

Bluetooth support is broadly confirmed and useful. Reviewers use it for laptops, work devices, travel, and quick switching alongside Lightspeed.

Product 2: Logitech G502 X Plus
1.0

Bluetooth support is consistently weak where mentioned: reviewers explicitly note that the mouse does not include Bluetooth connectivity.

build quality
Product 1: Logitech G309 Lightspeed
4.4

Build quality is generally positive, with reviewers calling it sturdy, well-built, secure, and resistant to flex. The design is simple rather than flashy.

Product 2: Logitech G502 X Plus
4.2

Build quality is mostly solid, with praise for sturdy construction and premium durability, though a few reviewers noted loose buttons or minor squeaks.

button customization
Product 1: Logitech G309 Lightspeed
4.1

Button customization is well supported through Logitech G Hub, with remapping, assignments, sensitivity profiles, and customizable controls noted across reviews.

Product 2: Logitech G502 X Plus
4.6

Button customization is a major strength, with many reviews describing broad remapping, G-Shift, macros, and per-button assignments through Logitech software.

button responsiveness
Product 1: Logitech G309 Lightspeed
4.2

Button responsiveness is strong overall. Primary clicks are repeatedly described as responsive, fast, snappy, and easy to actuate, though some secondary inputs are less praised.

Product 2: Logitech G502 X Plus
4.4

Button responsiveness is usually praised for quick, reliable, satisfying action, although a few reviews mention accidental presses or heavier force.

cable flexibility
Product 1: Logitech G309 Lightspeed
No score yet
Product 2: Logitech G502 X Plus
3.7

Cable flexibility has mixed evidence: one review criticized the charging cable as basic rubber, while another found the wired cable long and flexible enough.

charging convenience
Product 1: Logitech G309 Lightspeed
4.3

Charging convenience depends heavily on PowerPlay. With PowerPlay it offers cable-free, battery-free use, but reviews note the accessory cost and lack of USB-C charging.

Product 2: Logitech G502 X Plus
4.5

Charging convenience is strong thanks to USB-C, charge-and-play support, and optional Powerplay charging, though one review found the port fiddly.

claw grip comfort
Product 1: Logitech G309 Lightspeed
3.9

Claw grip comfort is mixed but often positive. Several reviewers liked the claw-oriented shape, while one found the flatter button profile less ideal for claw grip.

Product 2: Logitech G502 X Plus
4.2

Claw grip evidence is positive but not universal; reviews say claw or hybrid grips work, though larger hands and control reach can affect comfort.

click latency
Product 1: Logitech G309 Lightspeed
4.0

Click latency evidence is narrow but favorable where discussed. Reviewers connect Lightspeed, optical-only behavior, and quick reporting with lower latency.

Product 2: Logitech G502 X Plus
4.6

Click latency is strongly supported by optical or hybrid switch evidence, with reviewers citing fast, precise clicks and low-latency or instant actuation.

click noise
Product 1: Logitech G309 Lightspeed
3.0

Click-noise evidence is limited. One review explicitly says the clicks are a little loud, so this area is not a quiet-mouse strength.

Product 2: Logitech G502 X Plus
2.7

Click and scroll noise are mixed to weak: several reviewers call the wheel or buttons loud, cheap-sounding, or noisier than preferred.

connection stability
Product 1: Logitech G309 Lightspeed
4.3

Connection stability is generally good. Reviews report strong wireless behavior, no hiccups, no lag, and reliable dongle or Bluetooth operation.

Product 2: Logitech G502 X Plus
4.7

Connection stability is strong, with reviewers reporting no stutters, no skipping, no hiccups, and stable wireless response.

cross-platform compatibility
Product 1: Logitech G309 Lightspeed
4.3

Cross-platform evidence is positive where tested, including Windows, macOS or G Hub, Chrome OS, Android, iPad, work laptops, and dual-device use.

Product 2: Logitech G502 X Plus
4.4

Cross-platform evidence is limited to software availability, with G Hub or companion software described as available for Windows and Mac.

debounce customization
Product 1: Logitech G309 Lightspeed
1.5

Debounce customization is weak. TechRadar explicitly notes the absence of debounce-time adjustments along with other advanced tuning options.

Product 2: Logitech G502 X Plus
No score yet
dock compatibility
Product 1: Logitech G309 Lightspeed
No score yet
Product 2: Logitech G502 X Plus
4.6

Dock compatibility is well supported through repeated Powerplay references, including wireless charging pad compatibility and continuous charging.

DPI range
Product 1: Logitech G309 Lightspeed
4.3

The DPI range is strong, with multiple reviews citing 100 to 25,600 DPI, 25,600 max DPI, or flexible sensitivity presets.

Product 2: Logitech G502 X Plus
4.7

DPI range is very strong, with many reviews citing the 100 to 25,600 DPI range or 25K sensor ceiling.

durability over time
Product 1: Logitech G309 Lightspeed
4.0

Durability-over-time evidence is limited. The clearest long-use evidence is sturdy construction and skate condition after weeks, while one reviewer notes true long-term durability could not be tested.

Product 2: Logitech G502 X Plus
4.4

Durability over time has limited direct evidence, but one long-term review reports satisfaction over 18 months.

ecosystem integration
Product 1: Logitech G309 Lightspeed
4.2

Logitech ecosystem integration is a meaningful strength through G Hub profiles, Lightspeed devices, and especially PowerPlay compatibility.

Product 2: Logitech G502 X Plus
4.5

Ecosystem integration is supported by shared Lightspeed receivers, Logitech keyboard pairing, and software/device ecosystem notes.

ergonomic design
Product 1: Logitech G309 Lightspeed
4.1

Ergonomics are generally good for mainstream use, though not universally ideal. Reviewers praise comfort and stability while also noting flatter sides or missing curves.

Product 2: Logitech G502 X Plus
4.5

Ergonomic design is broadly praised as refined, comfortable, and shaped for extended use, though it remains right-hand focused.

fingertip grip comfort
Product 1: Logitech G309 Lightspeed
3.8

Fingertip comfort is discussed mainly in video reviews and is mostly acceptable, with the smaller shape and control position working better for some users than others.

Product 2: Logitech G502 X Plus
4.3

Fingertip grip support is generally favorable where mentioned, with reviews saying fingertip grip felt good or that the shape suits fingertip use.

firmware reliability
Product 1: Logitech G309 Lightspeed
3.7

Firmware reliability is mixed but functional. Some reviewers report easy updates, while one notes firmware updates require the Lightspeed receiver and can block customization until completed.

Product 2: Logitech G502 X Plus
No score yet
FPS gaming suitability
Product 1: Logitech G309 Lightspeed
4.1

FPS suitability is strong for casual and mainstream competitive use. Reviews cite good performance in shooters, though the 1K polling rate and weight limit top-tier esports appeal.

Product 2: Logitech G502 X Plus
4.1

FPS suitability is mixed: reviewers like the sniper button, sensor, and fast response, but several say the weight makes it less ideal for competitive FPS players.

glide smoothness
Product 1: Logitech G309 Lightspeed
3.8

Glide is mostly positive, with reviewers praising smooth movement, low resistance, PTFE pads, and good desk or mousepad performance. A few criticize skate thinness or feel.

Product 2: Logitech G502 X Plus
4.6

Glide smoothness is consistently strong, with PTFE feet repeatedly described as smooth, effortless, low-friction, or nearly drag-free.

grip texture
Product 1: Logitech G309 Lightspeed
3.8

Grip texture is mixed. Included grip tape helps, but several reviewers find the smooth or grainy shell less premium or less secure without it.

Product 2: Logitech G502 X Plus
4.3

Grip texture is mostly positive thanks to rubberized side grips and texture, but one reviewer disliked the sticky feel of the rubber.

handedness options
Product 1: Logitech G309 Lightspeed
3.3

Handedness is mixed. The symmetrical body allows left- or right-hand holding, but side-button placement clearly favors right-handed use.

Product 2: Logitech G502 X Plus
2.9

Handedness is a clear limitation: reviews repeatedly describe the mouse as right-handed, with left-handed users left out.

left and right click quality
Product 1: Logitech G309 Lightspeed
4.3

Left and right click quality is a clear strength. Reviewers praise the primary clicks as responsive, satisfying, light, tactile, and confidence-inspiring.

Product 2: Logitech G502 X Plus
4.6

Left and right click quality is positive, with reviews praising the main buttons as crisp, satisfying, and good-feeling.

lift-off distance
Product 1: Logitech G309 Lightspeed
No score yet
Product 2: Logitech G502 X Plus
3.6

Lift-off distance has mixed evidence: one review measured a low lift-off limit, while others mention lift-off or angle tuning limits and options.

long-session comfort
Product 1: Logitech G309 Lightspeed
3.7

Long-session comfort is mixed. Several reviews describe hours of comfortable use, while heavier battery setups and low-DPI play can cause fatigue for some.

Product 2: Logitech G502 X Plus
4.5

Long-session comfort is generally strong for the right hand size and grip, with multiple reviews praising extended-use comfort but noting size or thumb-rest caveats.

macro support
Product 1: Logitech G309 Lightspeed
4.0

Macro support is present through G Hub, with reviewers noting macro creation, recording, and remapping options.

Product 2: Logitech G502 X Plus
4.7

Macro support is strong through G Hub, with reviews repeatedly describing macro creation, macro assignment, and productivity/game commands.

materials quality
Product 1: Logitech G309 Lightspeed
3.8

Materials quality is generally serviceable rather than luxurious. Reviewers describe a sturdy plastic shell and useful material choices, but not a premium finish.

Product 2: Logitech G502 X Plus
4.1

Materials quality is mostly good, with praise for high-quality rubber and matte textures, though one reviewer said the lighter body could feel cheap.

MMO gaming suitability
Product 1: Logitech G309 Lightspeed
2.0

MMO suitability is weak. The six-button layout and limited extra controls are called insufficient for MMORPG-style needs.

Product 2: Logitech G502 X Plus
3.9

MMO gaming suitability is moderate: the extra buttons help, but several reviewers say it lacks the button count of a dedicated MMO mouse.

MOBA gaming suitability
Product 1: Logitech G309 Lightspeed
3.3

MOBA suitability is mixed. Reviewers successfully used it in DOTA 2 and League of Legends, but also note it could use more side buttons.

Product 2: Logitech G502 X Plus
4.2

MOBA gaming suitability is good where mentioned, with reviewers saying the buttons fit MOBA or mixed-genre play well.

motion consistency
Product 1: Logitech G309 Lightspeed
4.5

Motion consistency is strong where tested, with reviewers noting quick swipes, accurate response, and consistent tracking.

Product 2: Logitech G502 X Plus
4.7

Motion consistency is strong, with reviews describing smooth, accurate, jitter-free movement and no skipping or sensor slip-ups.

onboard memory
Product 1: Logitech G309 Lightspeed
4.5

Onboard memory is well supported. Reviews note up to five custom profiles and onboard memory mode for carrying settings to systems without G Hub.

Product 2: Logitech G502 X Plus
4.7

Onboard memory is strong, with reviews repeatedly citing up to five onboard profiles or integrated memory profiles.

palm grip comfort
Product 1: Logitech G309 Lightspeed
3.8

Palm grip comfort is generally acceptable but size-dependent. Some reviewers praise improved palm support, while large-hand users may find it a little small.

Product 2: Logitech G502 X Plus
4.3

Palm grip comfort is generally strong, with the shape repeatedly described as palm-friendly, though size and button reach can vary by hand.

polling rate
Product 1: Logitech G309 Lightspeed
3.5

Polling rate is adequate but not cutting edge. Reviews cite 1,000Hz or 1K as standard, while noting the absence of higher-end 4K or 8K options.

Product 2: Logitech G502 X Plus
3.9

Polling rate evidence is adequate but not cutting edge: reviews cite 1kHz or 1000Hz polling, while noting higher-rate competitors exist.

portability
Product 1: Logitech G309 Lightspeed
3.9

Portability is useful but imperfect. Dongle storage, AA power, Bluetooth, and travel use are praised, though one reviewer was blocked from G Hub customization after leaving the receiver behind.

Product 2: Logitech G502 X Plus
4.4

Portability is helped by onboard receiver storage and profile memory, with several reviews calling it easy to transport or use on multiple machines.

premium feel
Product 1: Logitech G309 Lightspeed
4.3

Premium feel is mixed. Some reviewers describe premium or Pro-like impressions, while others say the mouse feels basic or not high-profile.

Product 2: Logitech G502 X Plus
4.4

Premium feel is generally positive, driven by high-quality switches, RGB, build, and hand feel, though price and isolated build complaints temper it.

profile switching
Product 1: Logitech G309 Lightspeed
4.2

Profile switching is a clear strength, with reviews citing five sensitivity profiles, DPI presets, top-button switching, and profile storage.

Product 2: Logitech G502 X Plus
4.2

Profile switching is well supported through onboard profiles, DPI/profile indicators, and automatic app or game profile switching.

programmable buttons
Product 1: Logitech G309 Lightspeed
4.0

Programmable buttons are supported, but limited by the six-button layout. Reviewers confirm remapping and assignable functions.

Product 2: Logitech G502 X Plus
4.6

Programmable buttons are a major strength, with reviews citing 11-13 programmable controls and useful extra buttons for gaming and productivity.

RGB features
Product 1: Logitech G309 Lightspeed
1.9

RGB is essentially absent. Reviewers repeatedly mention no RGB or minimal indicator lighting, sometimes as a minor complaint and sometimes as a battery-life benefit.

Product 2: Logitech G502 X Plus
4.3

RGB features are visually praised and highly customizable, but several reviews note that RGB reduces battery life or is the main difference in the Plus version.

scroll wheel quality
Product 1: Logitech G309 Lightspeed
3.6

Scroll wheel quality is mixed. Reviewers like the tactile or notched feel, but several criticize stiffness, no free-scroll mode, or a heavy middle click.

Product 2: Logitech G502 X Plus
3.4

Scroll wheel quality is the most divisive area: dual-mode scrolling is useful, but many reviewers complain about stiffness, wobble, noise, or feel.

sensor performance
Product 1: Logitech G309 Lightspeed
4.2

Sensor performance is consistently positive. Reviews cite the Hero 25K sensor as precise, reliable, accurate, and strong for gaming and productivity.

Product 2: Logitech G502 X Plus
4.7

Sensor performance is excellent overall, with the HERO 25K sensor repeatedly praised for precision, smoothness, and reliable gaming response.

shape comfort
Product 1: Logitech G309 Lightspeed
4.0

Shape comfort is broadly good but not universal. Many find the mouse comfortable and safe, while others call it generic, smaller, or less suited to some grips.

Product 2: Logitech G502 X Plus
4.5

Shape comfort is strong for users who fit the G502 shape, with reviewers calling it comfortable, natural, and well shaped, especially for larger or right-handed users.

side button quality
Product 1: Logitech G309 Lightspeed
3.9

Side button quality is generally good but not perfect. Reviews praise size, placement, and responsiveness, while some call them softer, just OK, or awkward for left-handed use.

Product 2: Logitech G502 X Plus
4.0

Side button quality is mixed: reviewers like the removable or reversible sniper button and convenient placement, but accidental presses and a few quirks appear.

skate durability
Product 1: Logitech G309 Lightspeed
3.0

Skate durability evidence is mixed and limited. One reviewer saw no scratches after weeks, while others criticize thin skates or lack of replacement options.

Product 2: Logitech G502 X Plus
3.4

Skate durability has only limited evidence; one review noted PTFE feet were smooth but reserved judgment on how they would hold up over time.

software stability
Product 1: Logitech G309 Lightspeed
4.0

Software stability evidence is limited but positive where stated. TechRadar says the software works in the mouse's favor.

Product 2: Logitech G502 X Plus
No score yet
software usability
Product 1: Logitech G309 Lightspeed
4.0

Software usability is generally positive. G Hub is described as useful, simple, usable, well-rounded, and strong for profiles, DPI, and remapping.

Product 2: Logitech G502 X Plus
3.7

Software usability is sharply mixed: some reviewers call G Hub intuitive and easy, while others call it confusing, frustrating, or poor.

surface compatibility
Product 1: Logitech G309 Lightspeed
3.5

Surface compatibility is mixed. One review praises use on different surfaces, while another recommends padded surfaces because the skates are thin.

Product 2: Logitech G502 X Plus
4.7

Surface compatibility is positive, with reviewers reporting smooth glide on most surfaces or no sensor hiccups across environments.

switch durability
Product 1: Logitech G309 Lightspeed
4.3

Switch durability evidence centers on optical and hybrid behavior. Reviewers report no double-click or creaking issues and describe optical-only mode as reducing mechanical-switch risks.

Product 2: Logitech G502 X Plus
4.4

Switch durability is promising where mentioned, with optical/hybrid switches credited for longer life, reliability, and fewer double-click concerns.

switch feel
Product 1: Logitech G309 Lightspeed
4.3

Switch feel is a strong positive. Reviews describe the switches as crisp, clicky, smooth, tactile, light, and satisfying.

Product 2: Logitech G502 X Plus
4.5

Switch feel is widely praised as crisp, tactile, clicky, satisfying, or premium, though a few reviews found the click sound less refined.

value for money
Product 1: Logitech G309 Lightspeed
3.5

Value for money is the most divided area. Positive reviews praise price-to-performance, while critical reviews say it only makes sense with PowerPlay or lacks standout value.

Product 2: Logitech G502 X Plus
3.2

Value for money is mixed to weak at full price: reviewers like the features but often criticize the $159 class price or the Plus RGB premium.

weight
Product 1: Logitech G309 Lightspeed
3.6

Weight is highly dependent on setup. Around 86g with AA is viewed as acceptable by some and heavy by others, while 68g with PowerPlay is praised.

Product 2: Logitech G502 X Plus
3.6

Weight is divisive: the mouse is lighter than older G502 models but still heavy compared with ultralight competitors.

weight tuning
Product 1: Logitech G309 Lightspeed
4.2

Weight tuning is a major differentiator. Reviews repeatedly note dropping to about 68g through PowerPlay or reducing weight with battery changes or mods.

Product 2: Logitech G502 X Plus
2.2

Weight tuning is weak because reviewers repeatedly note that adjustable or removable weights were removed.

wireless latency
Product 1: Logitech G309 Lightspeed
4.5

Wireless latency is generally strong. Reviews associate Lightspeed and dongle use with low latency, quick response, and no noticeable delay.

Product 2: Logitech G502 X Plus
4.8

Wireless latency is excellent in reviewer experience, with repeated mentions of imperceptible lag, instant response, or low input lag.

wireless performance
Product 1: Logitech G309 Lightspeed
4.4

Wireless performance is one of the stronger areas, with reviewers citing reliable Lightspeed operation, no trouble in gaming, quick response, and stable connections.

Product 2: Logitech G502 X Plus
4.7

Wireless performance is strong, with reviewers praising Lightspeed reliability, wired-like response, and stable wireless play.