Logitech G903 Vs. Logitech G305 Lightspeed Wireless
The G903 by Logitech uses an Optical sensor from Pixart, specifically the PMW3366, providing a DPI/CPI range of 200 – 12,000 dpi. This is combined with a 32-bit ARM. This results in a tracking speed of 400+ IPS, and a maximum acceleration of 40+G. It uses a USB, wireless connection with a 1.83 m cable. The G903 is considered to be an ambidextrous mouse. It weighs in at 110 g without the cable, has Yes, 10g weights and is approximately 130.3 x 66.5 x 40.4 mm (LxWxH).
G305 Lightspeed Wireless
The G305 Lightspeed Wireless by Logitech uses an Optical sensor, specifically the Hero, providing a DPI/CPI range of 200 - 12,000 DPI. This is combined with a 32-bit ARM processor. This results in a tracking speed of 400IPS, and a maximum acceleration of 40 G. It uses a USB nano receiver connection. It weighs in at 99 g without the cable and is approximately 116.6 x 62.15 x 38.2 mm (LxWxH).