LogitechG703 LIGHTSPEEDvsLogitechG403 HERO

The short version

They are the same shape and the same size (124 × 68 × 43 mm). The Logitech G403 HERO is 8 g lighter (95 g vs 87.3 g). They share the HERO 25K sensor, both track to 25,600 DPI, and both poll at up to 1,000 Hz. The Logitech G703 Lightspeed came out about 3 years later (June 2019 vs September 2016). In our rankings the Logitech G703 Lightspeed is #54 overall and the Logitech G403 HERO is #49.

What actually separates them

LogitechG703 LIGHTSPEED	VS	LogitechG403 HERO
2019/06	Release Date	2016/09
#54	Overall Rank	#49
#47	FPS Rank	#42
#53	MOBA Rank	#48
#56	MMO Rank	#53
95g	Weight	87.3g -8.1%
Wireless	Connection	Wired
Built In	Battery Type	None

Every spec, side by side

LogitechG703 LIGHTSPEED	VS	LogitechG403 HERO
General
Logitech	Brand	Logitech
2019/06	Release Date	2016/09
Rankings
#54	Overall Rank	#49
#47	FPS Rank	#42
#53	MOBA Rank	#48
#56	MMO Rank	#53
Performance
25600	Max DPI	25600
100	Min DPI	100
40 G	Acceleration	40 G
400	IPS	400
1000	Poll Rate (Hz)	1000
1.2	Lift-off Distance	1.2
Optical	Sensor Type	Optical
HERO 25K	Sensor	HERO 25K
Ergo & Design
Yes	RGB Lighting	Yes
Right	Handedness	Right
Ergonomic	Shape	Ergonomic
Solid	Shell Type	Solid
	Colors
124 mm	Length	124 mm
68 mm	Width	68 mm
43 mm	Height	43 mm
95g	Weight	87.3g
Yes	Extra Weights	Yes
Buttons
6	Total Buttons	6
2	Buttons (Left)	2
0	Buttons (Right)	0
Notched	Scroll Wheel Type	Notched
50M	Switch Lifespan	Unknown
Connectivity
Wireless	Connection	Wired
Built In	Battery Type	None
Software Features
No	Hardware Acceleration	Unknown
No	Software Acceleration	Unknown
No	Angle Snapping	Unknown
No	Smoothing	Unknown
No	Motion Sync	Unknown