What do i look for while buying a mouse?
I'm doing a bit of research about mice, with the view of getting a new one. There's quite a few things that are obvious (for example, i wouldn't get a ball mouse) but there's a few things that baffle me.
I notice most mice seem to be graded by DPI (though wikipedia says cpi is more accurate) and that mice have switchable DPI - what would be the advantage/disadvantages of high and low DPI mice? Which would be better for precision work, gaming, or use with fairly limited desk space (well for the last, trackballs), but you get the idea.
I also notice that some logitech mice seem to have adjustable weight - what would be the practical advantage of a heavier mouse?
lastly, while i'm planning on getting a wired mouse, if i was getting a wireless mouse what technologies should i be looking at? i notice some systems use bluetooth, and others use other technology. Is there any practical difference between them?
EDIT:
One more thing i just noticed - what would be the difference between an optical, laser and infrared based sensor?
Solution 1:
DPI. This refers to the amount of movement in the mouse that corresponds to an amount of movement in the cursor or whatever is being controlled by the mouse. This is useful for different applications, but commonly used in games, where you may want fast movement for run-and-gun and slow movement for sniping, where you want fine control. So a lower DPI means more mouse movement for a given movement on screen. It could be useful on a small desk, but try it first, as a higher DPI means a finer level of control is required. This can become tiring for normal work.
Weight. This is about choice more than anything. The differences in inertia due to different masses in the mouse means a different level of force required for it to move. Again, this can help when doing fine control stuff, as you don't want the mouse skittering around when doing pixel level activities - so a heavier mouse could help. Very subjective.
Wireless mice come in two main flavours, 2.6ghz and bluetooth. Both require batteries or charging from time to time. Bluetooth is sometimes preferred with laptops if it already supports bluetooth, so you don't need to sacrifice a usb port for a mouse usb dongle. Otherwise there isn't much benefit in bluetooth imo.
Solution 2:
To continue Paul's list with some things I've experienced:
Some optical mice dislike the colour of your desk - had this experience at a customer where Microsoft optical mice were in use - the light beige desk surface somehow irritated the mouse. Sometimes not moving at all and then doing wild jumps - we had to revert to mousepads to overcome this issue - to clarify: The desk surface was not too smooth and mice from other brands didn't had any problems. I think it's related to the color of the light the mouse uses.
The last time I was looking for a mouse for my Laptop I tripped over a neat Logitech one, which featured an optical sensor instead of a wheel and this sensor was also clickable. Just out of curiosity I bought that one and was very satisfied with that sensor. With UNIX/Linux I use the middle button very often (paste) and a clickable scrolling wheel often slips on clicking. Not so this optical sensor which is in my opinion a very nice solution. Still I haven't found a nice mouse with scrolling wheel and a full sized middle button yet. It's because of this that I still use an old mechanical 3-Button mouse at my primary workstation.