Techgage found that the HERO sensor delivers highly accurate motion capture without smoothing or filtering, while Pcper recorded a steady 1000Hz polling rate for responsive input. The mouse offers exceptional battery life of up to 250 hours in performance mode or nine months in endurance mode on a single AA battery, and weighs just 99g with the included cell. Vice noted that the right-handed shape excludes left-handers from side button access, and the lack of wired connectivity or USB-C charging requires reliance on disposable batteries. This lightweight wireless option fits gamers seeking precision and long runtime, but those needing ambidextrous ergonomics or internal charging should look elsewhere.
Full review
HERO sensor accuracy without smoothing
The Logitech G305 LIGHTSPEED relies on the HERO optical sensor, a component that reviewers consistently highlight for its raw tracking precision. Techgage found that the sensor delivers highly accurate motion capture with absolutely no software-based smoothing or filtering applied to the data stream. This lack of artificial lag means the cursor and crosshair move exactly as fast as the user's hand does, which is critical for competitive gaming where split-second reactions determine outcomes. Vice noted that despite being introduced in 2018 alongside older laser sensors known for erratic cursor skipping, this HERO sensor completely eliminated those tracking issues during extensive use.
The sensor supports a resolution range from 100 to 12,000 DPI and can handle maximum accelerations exceeding 40G. Pcper recorded that the mouse maintains a steady 1000Hz polling rate in performance mode, translating to a 1ms response time between physical movement and digital input on the screen. This combination of high resolution and rapid reporting ensures that even rapid flicks across the mousepad are registered without stutter or missed data points.
LIGHTSPEED wireless latency matches wired mice
The LIGHTSPEED 2.4GHz wireless technology is engineered to eliminate the input lag that historically plagued early gaming peripherals. Vice reported that during extended sessions involving fast-paced browsing and casual gaming, the response time felt indistinguishable from a traditional wired ergonomic mouse. This allows users to cut the physical tether without sacrificing the immediate tactile feedback required for precision tasks.
Techgage explained that the wireless dongle operates on the 2.4GHz spectrum, which requires keeping the receiver within roughly 20cm of the mouse to prevent signal interference from other devices. However, this proximity requirement does not restrict the physical distance between the user and the computer; the connection remains stable even when used across several meters for big-screen gaming setups. The system dynamically manages power states based on activity levels to maintain this low-latency performance.
Battery life extends up to nine months
Power efficiency is a defining characteristic of the G305, driven by the highly optimized HERO sensor. Pcper specified that in full-performance mode with a 1000Hz polling rate active continuously, the mouse delivers approximately 250 hours of operational life on a single AA battery. For users who prioritize endurance over maximum responsiveness, switching to an efficiency setting drops the poll rate significantly and extends that lifespan up to nine months under standard daily usage conditions.
Techgage validated these manufacturer claims after subjecting the device to continuous use for over 8 hours per day for a full month, observing that the battery still retained substantial charge. To further optimize longevity, users can lower the polling rate from 1000Hz down to 250Hz or 500Hz via software with virtually no perceptible loss in gaming performance while gaining additional runtime.
Lightweight design drops below 90 grams
The physical construction of the mouse prioritizes speed and reduced fatigue through a lightweight chassis. Pcper measured the complete unit with an included AA battery at exactly 99g, noting that this weight sits in an ideal range for users who employ claw grips or make rapid, sweeping movements across their desk surface.
Vice described the physical form factor as chunky enough to provide substantial support for the palm and wrist during long work sessions, yet compact enough to fit comfortably into a laptop backpack pocket for travel.
Build quality features sharp tactile feedback
Reviewers praised the mechanical construction of the G305 for its solid feel and precise actuation. Techgage described the plastic housing as having zero slop or flex, with buttons that offer a crisp, sharp tactile response every time they are pressed. The scroll wheel matches this quality, providing distinct weighted clicks rather than a mushy or clumsy sensation often found in budget peripherals.
The underside of the mouse utilizes four primary teflon feet arranged for stability, supplemented by a fifth rear foot designed to support the tail end during aggressive lifting and repositioning. Pcper noted that these skates are rated for over 250km of travel distance, ensuring they will not wear out or degrade into plastic dragging long before other components fail.
Right-handed shape excludes left-handers
Despite being marketed with a symmetrical outer shell, the internal button layout of the G305 is strictly designed for right-handed users. Vice highlighted that while the mouse can be physically held in the left hand without major ergonomic issues, the two side thumb buttons are completely inaccessible to left-handers. This design choice forces ambidextrous gamers or those with specific handedness requirements to look elsewhere.
Pcper added a minor critique regarding the right-handed mold itself, noting that the lack of an outward arch on the left flank leaves their thumb dragging directly against the mousepad rather than resting comfortably on a dedicated support surface. This absence of ergonomic lip can cause discomfort during extended gaming sessions for users who prefer a full palm grip.
No wired mode or USB-C charging port
The G305 operates exclusively as a wireless device, meaning it lacks any capability to function while plugged into a computer. Vice pointed out that there is no internal rechargeable battery and no USB-C port for modern fast-charging solutions; the power source is entirely dependent on disposable AA cells housed in a compartment under the palm rest.
This reliance on standard batteries means users must carry spares or accept downtime while swapping them out, but it also eliminates the need to hunt for charging cables. The design choice keeps the internal weight distribution simple and allows the mouse to be used immediately upon insertion of fresh power cells without waiting for a charge cycle.
Software controls polling rate adjustments
Configuring the wireless performance requires Logitech's software suite, which manages DPI settings and button remapping. Pcper noted that while the mouse ships with four pre-programmed DPI levels ready to use out of the box, changing these values or creating game-specific profiles necessitates installing the companion application.
A notable omission in the hardware is a physical efficiency switch; earlier models featured a dedicated toggle for power modes, but on the G305, switching between high-power 1000Hz mode and low-power endurance mode must be done entirely through software. This centralizes control but removes the ability to instantly change performance characteristics with a single flick of a finger during gameplay.
Strengths
- +Features Logitech's HERO sensor which reviewers describe as highly accurate and precise with no smoothing or filtering.
- +Delivers exceptional battery life, lasting up to 250 hours in performance mode or nine months in endurance mode on a single AA battery.
- +Maintains low latency through LIGHTSPEED wireless technology that supports a full 1000Hz polling rate for responsive gaming.
- +Offers solid build quality with sharp, tactile buttons and a lightweight design weighing just 99g with the included battery.
Watch-outs
- −Lacks an ambidextrous shape as it is designed specifically for right-handed users, leaving left-handers without side button access.
- −Does not support wired connectivity or internal charging, requiring reliance on disposable AA batteries and lacking a USB-C port.
How it compares
It lacks the ambidextrous shape found in some competitors and does not support wired connectivity or internal charging like the Logitech G502 X PLUS.
Rating sources
Counts as 3.68/5 in our score — this publisher's 95 scores on the site average 3.98, so its scores are adjusted up to compare fairly with other publishers.
Counts as 4.38/5 in our score — this publisher's 87 scores on the site average 3.98, so its scores are adjusted up to compare fairly with other publishers.
Counts as 3.52/5 in our score — this publisher's 156 scores on the site average 4.15, so its scores are adjusted up to compare fairly with other publishers.
Counts as 3.92/5 in our score — this publisher's 195 scores on the site average 4.25, so its scores are adjusted down to compare fairly with other publishers.
Our 3.9 score is the average of the 4 scored reviews above, each adjusted for how strictly its publisher scores; 3 more reviewed it without printing a score and are not in the average. More about methodology.
