ASUS ROG Keris II Ace vs Razer Viper Ultimate
Looking for an honest ASUS ROG Keris II Ace vs Razer Viper Ultimate comparison in 2026? We scored both gaming mice on the same six-dimension framework — performance, battery, display, camera, design and value — using identical methodology, so the numbers below are directly comparable. In our overall scoring the Razer Viper Ultimate comes out ahead 47/100 to 56/100 — a 9-point gap. The widest gap is in design and build, where the Razer Viper Ultimate pulls noticeably ahead. On price the Razer Viper Ultimate undercuts the ASUS ROG Keris II Ace by 170% ($32.99 vs $89), which materially changes the value calculus for budget-conscious buyers.
