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Logitech G703 Lightspeed Wireless Gaming Mouse

Logitech G703 Lightspeed Wireless Gaming Mouse

By Logitech · Computer Mice · Desk & Streaming Setup · More from Logitech

  • HERO 25K sensor
  • 100-25,600 DPI
  • >400 IPS
  • 6 programmable buttons
  • 95 g (3.35 oz)

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Problems, parts and running costs

Summary

A right-handed wireless gaming mouse built around Logitech’s HERO 25K sensor, with 100-25,600 CPI, 1,000 Hz polling and a 35/60-hour rechargeable battery.

Strengths

  • HERO 25K sensor with 100-25,600 CPI, 400+ IPS and zero smoothing.
  • Click latency measured at 4.1 ms wired and 5.2 ms wireless.
  • Build quality rated 8.5/10 with a solid, sturdy feel.
  • Battery rated 35 hours with RGB on and 60 hours off.
  • On-board memory stores 3 profiles and 11 programmable inputs.
  • Two-year limited hardware warranty.

Weaknesses

  • No Bluetooth; wireless needs the USB receiver.
  • No receiver storage compartment inside the mouse.
  • Scroll wheel has no tilt or infinite scroll.
  • Heavier than many rivals and bulky for small hands with fingertip grip.
  • No manufacturer spare parts available for the G703.
  • G HUB software has widely reported startup, freezing and connection issues.

Verified specifications

SensorHERO 25K optical, 1:1 tracking, 100-25,600 CPI, 400+ IPS, >40 G acceleration, no smoothing, filtering or acceleration.
Polling rate1,000 Hz (1 ms).
CPI adjustment50 CPI steps, 100 to 25,600.
Lift-off distance1.2 mm minimum.
Buttons6 total (left, right, scroll click, forward, back, DPI), 2 side buttons, 11 programmable inputs via G HUB.
On-board memory3 hardware profiles.
Connectivity2.4 GHz LIGHTSPEED via USB nano receiver (C-U0008); wired micro-USB; no Bluetooth.
Click latency4.1 ms wired, 5.2 ms wireless.
Sensor latency14.1 ms to start of movement, 4.5 ms at half movement, 6.0 ms to end.
Main button durability50 million clicks; rated travel >250 km.
Switch typemechanical.
OS supportWindows 7+ and macOS.
SoftwareLogitech G HUB with on-board memory.
Batteryrechargeable Li-polymer, 35 hours with RGB on, 60 hours with RGB off.
RGBtwo zones (G logo and scroll wheel).
Scroll wheelnotched, 24 steps, no tilt, no infinite scroll.
Cablebraided micro-USB, 6.2 ft / 1.9 m (RTINGS) or 6 ft / 1.8 m (support).
FeetPTFE, 0.65 mm thick.
Weightincludes 10 g optional weight.
Carbon footprint6.38 kg CO2e.
Dimensions125 × 65 × 43 mm (RTINGS) or 124 × 68 × 43 mm (support); grip width 62 mm.
Weight92.6 g minimum, 105.3 g default (RTINGS); 95 g manufacturer; 107.2 g support.
In the boxmouse, USB wireless receiver, receiver extension adapter, 1x 10 g weight, micro-USB cable, user guide.
Warranty2 years limited hardware.
Full research notes and sources

Which model this is

This page covers the HERO-sensor revision of the G703 LIGHTSPEED, model number M/N M-R0080, with a HERO 25K sensor rated 100-25,600 CPI and 35/60-hour battery life. An older, visually identical revision (M/N M-R0063) uses a PMW3366 sensor rated 200-12,000 CPI with shorter rated battery life (30/22 hours), and the two are not equivalent. RTINGS notes the revisions look identical, so check the sensor and CPI range before buying. The Amazon listing for this mouse is ASIN B0BL65V4R2. Do not confuse it with the G403, G603, G604 or G903.

Sensor and performance

RTINGS measured 125 × 65 × 43 mm, 92.6 g minimum and 105.3 g default, with excellent build quality (8.5/10), excellent click latency (4.1 ms wired, 5.2 ms wireless) and low CPI variation (SRAV 0.12-0.33%). Sensor latency ran 14.1 ms to the start of movement, 4.5 ms at half movement and 6.0 ms to the end, with a 1.2 mm minimum lift-off. The mouse is rated for 50 million clicks. RTINGS scored it Work 7.2, FPS 8.3, MMO 7.9 and Raw Performance 9.1. It does not work on glass.

Battery and charging

The rechargeable Li-polymer battery is rated at 35 hours with RGB on and 60 hours with RGB off. The mouse works while charging over the included micro-USB cable. Logitech’s POWERPLAY wireless charging system is sold separately. RTINGS did not test battery life, so the figures are manufacturer-rated.

Software and reliability

Logitech G HUB handles the 11 programmable inputs, three on-board profiles and two-zone RGB. RTINGS notes widely reported user problems with G HUB, including startup, freezing and device connection. Firmware update tool and Logitech Gaming Software are no longer supported. Logitech support lists no spare parts for the G703.

Is it worth it?

At the manufacturer’s promotional price of $69.99, the G703 is strong value for a wireless gaming mouse with the HERO 25K sensor and a two-year warranty. At the $99.99 list price it is fair value, competing with lighter mice such as the G305 and feature-heavier options such as the G502 line. Owners who need Bluetooth, infinite scroll or a storage compartment for the receiver should look elsewhere.

Sources

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