Zowie Gear EC2-B Vs. Logitech G403 Prodigy Wired
The EC2-B by Zowie Gear uses an Optical sensor from PixArt, specifically the 3360, providing a DPI/CPI range of 400/ 800/ 1600/ 3200. It uses a USB connection with a 2m cable. It weighs in at 90g without the cable and is approximately 120 x 64 x 40 mm (LxWxH).
G403 Prodigy Wired
The G403 Prodigy Wired 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 processor. This results in a tracking speed of 300 ips, and a maximum acceleration of 40G. It uses a USB connection with a 2.13m cable. It weighs in at 135 g grams with the cable and 87.3 g without the cable, has 1 x 10g weights and is approximately 124 x 68 x 43mm (LxWxH).