I upgraded from a Logitech G402 to a Razer Deathadder V2. Considering these are popular options under 4k, AMA and I will try to give you my 2 cents. : r/IndianGaming
Amazon.com: Logitech G402 Hyperion Fury FPS Gaming Mouse : Video Games
Razer Deathadder Chroma - HardwareZone.com.sg
HyperX Pulsefire Core vs Logitech G402 Hyperion Fury - Which Mouse is Better ? - YouTube