Razer Viper Ultimate vs Vancer BT.L Gretxa

The Razer Viper Ultimate is a better wireless gaming mouse than the Vancer BT.L Gretxa. The Razer has better quality feet, a somewhat higher maximum CPI, and lower click latency. You can assign a HyperShift button that enables a secondary layer of controls, and it has two additional side buttons on the right side, making it a better choice for left-handed users. On the other hand, the Vancer is marginally lighter and feels sturdier. It also has a marginally lower minimum CPI, though this is unlikely to be useful for most users. Both mice are suitable for all grip types and most hand sizes, but the Vancer is slightly more accommodating to large-size hands using a palm grip.