The first thing I noticed when I unboxed the 780M was how short and stout it was. At 1.8 by 4.9 by 3.9 inches (HWD), the 780M is flatter and wider than the MX Master 4, with a round base I often associate with ergonomic mice. I do miss the hump at the center of the MX Master 4, which arcs the hand slightly; with the 780M, my hand lies flatter across the top of the mouse, which took some getting used to. Weight-wise, you’re looking at 4.4 ounces, almost an ounce lighter than the MX Master 4 (5.2 ounces).
(Credit: Joseph Maldonado)
At a glance, the 780M resembles the Logitech MX Master 3S: a gray-and-black color scheme with a DPI button at the center and a magnetic scroll wheel between the two clickers, with options for tactile and free-spin scroll modes. Another scroll “wheel” (more of a roller cylinder) is tucked away on the mouse’s left flank, just above your thumb, though I found it far less comfortable to use than the scroll wheel up top, and the action is a bit stiff for my liking. Two additional buttons hang like a piercing on the mouse’s left click.
(Credit: Joseph Maldonado)
The device comes sheathed in HP Comfort Silicone, which provides a soft grip and (according to HP) is also easy to clean and resistant to water and heat. Meanwhile, light ribbing on the sides gives your fingers extra grip, and that feature extends down to the wing, where your right thumb will rest.
Turning the mouse over reveals four grips—one at each end of the wide, palm-sized base—to improve the mouse’s glide. On one end, there’s also a small nook to house the mouse’s 2.4GHz connector.
