Logitech G703 LIGHTSPEED vs Logitech MX Master 3

Every spec side by side, from each maker's published figures.

Better figure, where one is clearly better

G703 LIGHTSPEED compared with MX Master 3
LogitechG703 LIGHTSPEEDLogitechMX Master 3
Overview
ReleasedJune 2019September 2019
Tracking
ShapeErgonomicErgonomic
HandRight handRight hand
SensitivityUp to 25,600 DPI (better)Up to 4,000 DPI
SensorHERO 25KDarkfield high precision
Buttons67 (better)
Free-spinning wheelNoYes
Thumb wheelNoYes
SensorHERO 25K sensor, 100–25,600 DPI; over 400 IPS; over 40 G; 1,000 Hz (1 ms) report rate wireless and wired (launched in 2019 with the HERO 16K sensor, up to 16,000 DPI)200–4,000 DPI Darkfield high-precision tracking; tracks on glass
Scroll wheel–MagSpeed electromagnetic wheel with ratchet and free-spin modes, switched by speed or the mode button
Thumb wheel–Sideways scrolling or app-specific functions in Logitech Options
Gestures–Gesture button in the thumb rest; hold it while moving the mouse for customisable actions
Connections and battery
Connects byUSB receiver and CableBluetooth and USB receiver
Devices it switches between–3
PowerRechargeableRechargeable
Battery life (maker's claim)Up to 60 hoursUp to 70 days
Charging port–USB-C
ReceiverLIGHTSPEED wireless USB receiver and receiver extension adapter includedIncluded Logitech Unifying USB receiver for the standard version; Bluetooth Low Energy is also supported
ChargingRechargeable; up to 60 hours with lighting off and 35 hours of constant motion; 1.8 m charging and data cable; POWERPLAY wireless charging compatible (sold separately) with the included POWERCORE discUSB-C and 500 mAh rechargeable lithium-polymer battery; Logitech states a 1-minute charge gives 3 hours of use and a full charge takes about 2 hours
Works with–Bluetooth Low Energy with Windows 8 or later, macOS 10.13 or later, iOS 9 or later, Android 6 or later and Linux; Unifying receiver with Windows 7 or later, macOS 10.13 or later, Android 6 or later and Linux
SoftwareLogitech G HUB (LIGHTSYNC RGB lighting, button programming)Logitech Options for button customisation, app-specific profiles and Logitech Flow across computers
Design
Weight95 g (better)141 g
Size124 × 68 × 43 mm (length × width × height); 95 g, plus an optional 10 g weight124.9 × 84.3 × 51 mm (length × width × height)
MaterialsMechanical button tensioning system with metal springs; dual-injected rubber side grips; LIGHTSYNC RGB lighting–
ColoursBlack–
In the boxGaming mouse, LIGHTSPEED wireless receiver, charging/data cable, receiver extension adapter, optional 10 g weight, user documentationStandard version includes mouse, Logitech Unifying USB receiver, USB-C charging cable and documentation
Warranty2-year limited hardware warranty–

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