Logitech G400s vs G602 which is better?

I posted this earlier, but nobody commented on it. So which would be the best gaming mouse for 75 euros. I need a perfect sensor with no acceleration and prediction, heavier and bigger than the Logitech G300, very comfortable for palm/fingertip grip and at least 4 programmable buttons + left and right mouse buttons and scroll wheel. Having have adjustable weights would be nice also. I have looked at the Logitech G400s, G500s, G602 and the Razer Naga HEX

Thanks already and sorry for the bad grammar.

EDIT: I have come down to these two mice G400s and the G602 from Logitech

Of those, G400s is the best one.

G500s has worse sensor and it's way too heavy (even without weights).

Look at the Zowie AM, FK, EVO2.  They have the 3090 sensor which is near perfect.  Other wise the deathadder 3.5g and the old logitech g400 have really good sensors.  Many of the new optical mice do not have as good of sensors because of the firmware and high dpi.  Optical sensors can not really do more then about 3000-4000 dpi with out getting jittery so they smooth the movement via firmware.  Tired of there marketing bs that is why I like Zowie.

Optical sensors can not really do more then about 3000-4000

As if anyone ever needs more than 800.

I mean, how can you care about precision of your sensor when you play the way you can't be accurate anyway.

Tell the mouse companies that.  I have never used more then 1800 dpi and I use 900 most of the time.  I could see like 3000 dpi if you had like a 4k screen for the desktop.

How much worse is the G500s sensor then the one on G400s?

If you like the g500 just wait and get the g502 when it comes out.

The DPI of a mouse sensor is a byproduct of the precision of the sensor, it is not the driving force behind the design, nobody makes sensors that can do 8200 DPI because think someone will use 8200 DPI, its because an 8200 DPI capable sensor can track more precisely than an 800 DPI sensor.

P.S. my default DPI 1600

Does the G300 have acceleration?

Zowie FK

No, its optical, but it doesn't really matter most mice nowadays have taken care of the acceleration issue and most people can't even tell that there is acceleration

Must be a personal choice thing, I use 4000 DPI constantly 

I've been using the Corsair M65 and it's great, got it on sale for $45... Not for everyone in terms of ergonomics but really solid build quality and performance.

Check out the Zowie mice and the Mionix mice.

Increasing sensitivity is trading away your accuracy. The faster you can move your hand, the lower you can set your sensitivity and the more accurate your movements are.

I consider anything over 1000 unreasonably high.

The DPI of a mouse sensor is a byproduct of the precision of the sensor

It's not. DPI is just sensitivity.

Over9000 DPI mouse at 800 DPI is not more accurate than a 800 DPI mouse at 800 DPI, if both have no acceleration.

Got the M65, have no problems as I am used to it, anything much less than 2000 feels like its crawling for me

He said he wants a bigger mouse so Zowie are probably not an option.

Optical Mionix would probably be good though.

It depends on your pointer speed in windows settings (I recommend always setting it to the 6th tick to avoid interpolation, and also no enhanced precision) and in-game sensitivity. If you want some meaningful number for FPS games, measure the distance it takes you to make a full 360 turn.

For me it's 20 cm and my mouse is at 400 DPI.

Precision and accuracy are not the same thing, a mouse sensor always polls at its max rate and tracks at its max DPI, its the job of the DSP to translate the raw tracking information into what is sent to a computer, a good DSP should then be able to use the excess tracking information to validate the tracking thus increasing the precision