Logitech G502 X Lightspeed Gets 44K Sensor Firmware, Same $159.99 Price

By Grace Kim

A firmware update will upgrade the Logitech G502 X Lightspeed's Hero 25K optical sensor to a Hero 44K sensor, raising maximum resolution from 25,600 DPI to 44,000 DPI. The mouse still retails for $159.99 — the same price as the better-equipped G502 X Plus, a pricing anomaly Tom's Hardware flags as the product's central problem.

Reviewer Sarah Jacobsson Purewal tested the mouse ahead of the update, which is slated for September 2026 and had not yet rolled out through Logitech's G Hub software at the time of review. The G502 X Lightspeed launched in August 2022 alongside the G502 X Plus and the wired G502 X. It ships in black and white colorways.

What does the firmware update change?

The upgrade lifts the sensor's maximum resolution from 25,600 DPI to 44,000 DPI. Maximum tracking speed rises from 400 IPS to 678 IPS. The sensor handles up to 40 G of acceleration. Logitech has not stated a rollout date, and the reviewer could not apply the update to her unit through G Hub.

Even before the update, the sensor performed well. The reviewer found it tracked on nearly every gaming surface and described it as speedy, sensitive and very accurate. Polling rate tops out at 1,000 Hz — standard for most gamers, but well short of the 4,000 Hz and 8,000 Hz rates offered by some competitors.

How does the hardware hold up?

The mouse measures 5.17 x 3.12 x 1.62 inches (131.4 x 79.2 x 41.1 mm) and weighs 3.6 ounces (102 g). That makes it larger than the Razer Basilisk V3 Pro and V4 Pro (130 x 75.4 x 42.5 mm), though only slightly — the reviewer noted it feels considerably bigger in the hand. It is lighter than the Basilisk V3 Pro but slightly heavier than the Basilisk V4 Pro.

Logitech's Lightforce hybrid optical-mechanical switches sit in the primary buttons, pairing mechanical feel with optical speed and reliability. The click is tactile and crisp, though loud. The mouse offers 11 programmable buttons and 13 programmable controls counting scroll up and down.

The left side carries two standard thumb buttons plus a magnetically attached "sniper" button that flips out of the way. Logitech includes a delete cover in the box that renders the sniper button unpressable. The 4-way tilt scroll wheel adds three more programmable inputs, and a mechanical switch toggles between notched and free-scroll modes — an approach the reviewer preferred over Razer's software-based implementation for free-scrolling, but the notched mode was stiff, clunky and loud, with audible rattling. The wheel has only two modes, with no middle ground.

UHMWPE mouse feet sit at the top, bottom, around the sensor and under the thumb rest. The base holds a power switch, a magnetic dummy puck swappable for the charging puck in the optional PowerPlay 2 mousepad, and a storage slot for the wireless dongle. The box includes a 6-foot (1.8 m) USB-C-to-USB-A cable, a USB-A dongle, a USB-C converter and the sniper button delete cover.

Is the battery life competitive?

Logitech rates the G502 X Lightspeed at 140 hours, roughly 10 hours more than the G502 X Plus with lighting off. The Razer Basilisk V4 Pro reaches up to 200 hours. The reviewer estimated at least two weeks between charges even with intense use.

Connectivity is limited to 2.4 GHz wireless and wired USB-C. There is no Bluetooth. The bundled rubber cable does not deliver the drag-free movement of paracord-sheathed cables, the reviewer noted.

Configuration runs through Logitech's G Hub software, which handles DPI steps, DPI shift speed, key remapping and firmware updates.

Should buyers wait for a price cut?

The verdict: a great gaming mouse in performance, but currently priced identically to the prettier G502 X Plus. The reviewer recommends the G502 X Plus, or Razer's Basilisk V3 Pro 35K at a similar price, unless the Lightspeed drops well below its $159.99 list price. Once the Hero 44K firmware actually ships, the sensor will be competitive — though still short of Logitech's true Hero 2 sensor, keeping the value question tied to street pricing rather than raw specs.