LogitechG305 LIGHTSPEEDvsLogitechG203 LIGHTSYNC

The short version

They are the same shape and the same size (116.6 × 62.15 × 38.2 mm). The Logitech G203 Lightsync is 14 g lighter (99 g vs 85 g). The Logitech G305 Lightspeed tracks to a higher maximum DPI (12,000 vs 8,000) and both poll at up to 1,000 Hz. The Logitech G203 Lightsync came out about 2 years later (May 2018 vs May 2020). In our rankings the Logitech G305 Lightspeed is #57 overall and the Logitech G203 Lightsync is #98.

What actually separates them

LogitechG305 LIGHTSPEED	VS	LogitechG203 LIGHTSYNC
2018/05	Release Date	2020/05
#57	Overall Rank	#98
#49	FPS Rank	#98
#55	MOBA Rank	#98
#59	MMO Rank	#98
12000	Max DPI	8000 -33.3%
No	RGB Lighting	Yes
	Colors
99g	Weight	85g -14.1%
Wireless	Connection	Wired
AA	Battery Type	None

Every spec, side by side

LogitechG305 LIGHTSPEED	VS	LogitechG203 LIGHTSYNC
General
Logitech	Brand	Logitech
2018/05	Release Date	2020/05
Rankings
#57	Overall Rank	#98
#49	FPS Rank	#98
#55	MOBA Rank	#98
#59	MMO Rank	#98
Performance
12000	Max DPI	8000
200	Min DPI	200
40 G	Acceleration	Unknown
400	IPS	Unknown
1000	Poll Rate (Hz)	1000
1.2	Lift-off Distance	1.2
Optical	Sensor Type	Optical
HERO	Sensor	Unknown
Ergo & Design
No	RGB Lighting	Yes
Right	Handedness	Right
Symmetrical	Shape	Symmetrical
Solid	Shell Type	Solid
	Colors
116.6 mm	Length	116.6 mm
62.15 mm	Width	62.15 mm
38.2 mm	Height	38.2 mm
99g	Weight	85g
No	Extra Weights	No
Buttons
6	Total Buttons	6
2	Buttons (Left)	2
0	Buttons (Right)	0
Notched	Scroll Wheel Type	Notched
10M	Switch Lifespan	Unknown
Connectivity
Wireless	Connection	Wired
AA	Battery Type	None
Software Features
No	Hardware Acceleration	Unknown
No	Software Acceleration	Unknown
No	Angle Snapping	Unknown
No	Smoothing	Unknown
No	Motion Sync	Unknown