When placed side by side, the Logitech MX Master 3S and Razer DeathAdder V3 Pro reveal a clear story. In terms of height, the Logitech MX Master 3S stands at 124.9 mm while the Razer DeathAdder V3 Pro measures 128.0 mm. The Razer DeathAdder V3 Pro is 3.1 mm taller. Looking at width, the Logitech MX Master 3S is 61.0 mm across versus the Razer DeathAdder V3 Pro's 62.1 mm. The Razer DeathAdder V3 Pro is 1.1 mm wider. For thickness, the Logitech MX Master 3S comes in at 43.0 mm compared to the Razer DeathAdder V3 Pro's 38.8 mm. The Logitech MX Master 3S is 4.2 mm thicker.
The Logitech MX Master 3S is heavier at 141 grams versus 63 grams for the Razer DeathAdder V3 Pro. That is a 78-gram difference (123.8%). While this may seem small, you can feel a noticeable difference during extended use.
| Metric | Logitech MX Master 3S | Razer DeathAdder V3 Pro | Diff |
|---|---|---|---|
| Width | 61.0 mm | 62.1 mm | -1.1 mm |
| Height | 124.9 mm | 128.0 mm | -3.1 mm |
| Depth | 43.0 mm | 38.8 mm | +4.2 mm |
| Weight | 141 g | 63 g | +78.0 mm |