Here is another mouse from Logitech that goes easier on your wrist and forearm. The MX Vertical Mouse features a 57-degree vertical angle and natural handshake position to promote an ergonomic posture.
MX Vertical has a 4000 DPI high-precision sensor. Its battery lasts up to 4 months. You can pair up to 3 devices and switch between them with the tap of a button. Will ship for $99.99.