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 G403 Prodigy RGB Gaming Mouse – 16.8 Million Color Backlighting, 6 Programmable Buttons, Onboard Memory, Up to 12,000 DPI : Video Games
Logitech G403 Wireless Gaming Mouse vs Razer DeathAdder V2 Pro - Which Mouse Is Better ? - YouTube