for razer, if you browse on the net you will find this statement:

1. More precision

2.fit with your hand.

3.Macro (you can move the letter or number function in your keyboard into mouse, so you can click letter directly.)

4.Quick response compared to standar infrared mouse

Bu be careful:

1.if you get beaten on the game, don’t blame your mouse with some inappropiate manner (slam the mouse or throw away the mouse, it is expensive hehe)

2.You must have a high quality mouse pad.

more exlanation:

-Many people using razor said that it quite comfortable. You can set its sensitivity into default, so when you movin your maouseinto another computer you don’t need to se the sensitivity over and over again.

How about MX 518?

- 2 memory console ( 5 adjustable button on mouse )
- adjustable DPI up to 1800 dpi (one time configuration)

G5 is the cheap version.

So who’s the winner?

If you take a look at the price Logitech MX is cheaper, and the quality is good also. But if you analyze both razer and logitech launch their product based on their research on the competitor, so i quarantee you will be satisfied whichever productcome to your choice in the end.
My advice is, all mouse are the same. It’s up to you, which mouse you think would fit you best. which one is more accustomed for you?

one of my friend he’s usually using bad mouse, the mouse pad already stink. and when  give him copperhead mouse, he said “it’s not comfortable, i’m losing too muchusing this mouse”

Here’s some type and the price for razer:

Here’s some type and the price for logitech mx: