When the DHL guy dropped off my G5 & G7 for review, I was pretty psyched. I've been a long-time MX500 user, & I was interested

Logitech's newest line of gaming mice have been dubbed the "G Series," G for gaming, no doubt. Ah, how quickly we forget the MX line; I suppose the MX1000 laser was the last we'll see of that one. The G5 & the G7 are very much the same mouse except for a few minor differences & one major one: the G5 is corded & uses a weight system, & the G7 is cordless & uses a battery for weight.

Let's take a look at the subjects at hand. You can see just by looking at the backs of their boxes that these two mice have plenty in common. They have the same shape, the same size, & each has a method of weighting the center of their bodies. They're each rated for multiple sensitivities, the highest being 2000dpi, & each controls their sensitivity in the same manner: with up/down arrows just beneath the wheel.

Here are the technical specifications of the G Series mice from Logitech's website:

• Tracking Resolution: 2000/800/400 dpi (user selectable)
• Image Processing: 6.4 megapixels/second
• Max. Acceleration: 20g
• Max. Speed: 45—65 inches/second (depending on surface)
• USB Data Format: 16 bits/axis
• USB Report Rate: 500 reports/second
• Sleep Mode: Disabled

Once you take a closer look at each individual mouse, however; you'll see that there are differences in the details.