The Razer Mamba Elite is a slightly lighter-weight and wired gaming mouse, while the Razer Basilisk X Hyperspeed is wireless-only. They’re both great for all hand sizes with palm grip, though the X is better in claw grip for small hands, and both will likely only be comfortable in medium or larger hands with fingertip grip. They have the same customizable CPI range, and almost the same click latency. While they both have two additional side buttons, the Mamba Elite has more programmable buttons overall due to the CPI switch buttons on top and its L/R tilt mouse wheel.