The Apex Pro by Steelseries is a Full sized keyboard with 104 keys, which uses OmniPoint Adjustable Mechanical Switch (Analog Hall Effect Magnetic Sensor) switches. The keyboard has media keys which are accessible via function keys. The Apex Pro keyboard uses a USB connection. It is supported by SteelSeries Engine 3.15+ software. And has Per Key RGB backlighting. It weighs in at 970.68g, and is 436.7 x 139.2 x 40.3 mm [LxWxH].
The FireGlider Black by Sharkoon uses a Laser sensor from Avago, the ADNS-6010, providing a DPI/CPI range of 100, 400, 600, 800, 1200, 1600, 2000, 2500, 3600 dpi, and a maximum acceleration of 20 G. It uses a USB connection with a 1.8 m cable. It weighs in at 118 g - 135 g grams with the cable, has max. 19.5 g weights