Steelseries Rival 310 Vs. Cougar 700M
The Rival 310 by Steelseries uses an Optical sensor, specifically the SteelSeries TrueMove3, providing a DPI/CPI range of 100-12000, 100 CPI Increments. This is combined with a 32-bit ARM processor. This results in a tracking speed of 350+, and a maximum acceleration of 50G. It uses a USB connection with a 2m cable. It weighs in at 88.3g without the cable and is approximately 127.6 x 70.1 x 41.98 mm (LxWxH).
The 700M by Cougar uses a Laser sensor from Avago, specifically the A9800, providing a DPI/CPI range of 8200 DPI. This is combined with a 32-bit ARM Cortex-M0. This results in a tracking speed of 150 IPS, and a maximum acceleration of 30G. It uses a USB Gold plated connection. It weighs in at 130g grams with the cable, has 4 x 4.5g weights and is approximately 127 x 83 x 38 mm (LxWxH).