2.8 in 1.5 in  | 2.61 in 1.49 in  | |
| Available colors | ||
| Editiorial reviews | ||
| User rating |
 Razer Basilisk Ultimate |  Razer Viper Ultimate | |
|---|---|---|
| Type of motion sensor | Optical | Optical |
| Device interface | RF Wireless | RF Wireless + USB Type-C |
| Purpose | Gaming | Gaming |
| Razer Basilisk Ultimate | Razer Viper Ultimate | |
|---|---|---|
| Operating resolution | 20000.0 dpi | 20000.0 dpi |
| Buttons type | Pressed buttons | Pressed buttons |
| Number of buttons | 11 | 8 |
| Number of wheels | 1 | 1 |
| Scroll type | Wheel | Ring |
| Razer Basilisk Ultimate | Razer Viper Ultimate | |
|---|---|---|
| Ergonomic design | yes | yes |
| Built-in memory | yes | no |
| Customizable movement resolution | yes | yes |
| Number of movement resolution modes | 5 | 5 |
| Programmable mouse buttons | yes | yes |
| Razer Basilisk Ultimate | Razer Viper Ultimate | |
|---|---|---|
| Nano/Unifying receiver | yes | yes |
| Wireless receiver interface | USB Type-A | USB Type-A |
| Razer Basilisk Ultimate | Razer Viper Ultimate | |
|---|---|---|
| Colour of product | Black |
|
| Form factor | Right-hand | Ambidextrous |
| Illumination | yes | yes |
| Illumination colour | Multi |
|
| Razer Basilisk Ultimate | Razer Viper Ultimate | |
|---|---|---|
| Width | 2.8 in | 2.61 in |
| Height | 1.5 in | 1.49 in |
| Depth | 4.61 in | 4.99 in |
| Weight | 3.77 oz | 2.61 oz |
| Razer Basilisk Ultimate | Razer Viper Ultimate | |
|---|---|---|
| Power source | Batteries | Batteries |
| Battery type | Built-in battery | Built-in battery |
| Pros | ||
|---|---|---|
| Cons |
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