You can measure the current DPI with a tool called ES MouseTest. It can estimate the polling and DPI settings of the mouse along with some other aspects of the sensor. However it wont tell you what the sensor is capable of without interpolation and I suspect this is what you are looking for? If so the only way I know is the engineers of the underlying chip tell you what the native setting is. Its one of the reason why I like the Zowie mice, they only allow you to use the native settings without interpolation.
How does the G502 stack up against the Zowie mice?
How does the G502 stack up against the Zowie mice?
It is not on the flawless list. I don't remember the precise details of why its not, most likely its acceleration or failure speed problems (that is the issue with most of the Logitech mice). The only Logitech mouse that I know is considered flawless is the G400S latest version which is known to have a good optical sensor, everything else by Logitech has issues. All the Zowie mice are basically perfect, all be it with a slightly odd lens over the sensor that reduces lift off and adjusts DPI somewhat and a few others from other manufacturers. People can usually find a mouse that suits their hand between the Razor Deathadder 3.5, Logitech G400 and one of the Zowie mice. There are other models out there that are flawless but by and large most mice aren't and hence I don't really consider them suitable for gamers, although many people will argue how amazing their mouse is despite scientific tests showing its changing their inputs and thus isn't accurately reproducing what they do.
Do all Zowie mice use the same sensor/lens setup? I bought an AM and was thoroughly disappointed with the malfunction speed. Somewhere in the low 2's. Definitely a no-go for those with a low sensitivity.
You can measure the current DPI with a tool called ES MouseTest. It can estimate the polling and DPI settings of the mouse along with some other aspects of the sensor. However it wont tell you what the sensor is capable of without interpolation and I suspect this is what you are looking for? If so the only way I know is the engineers of the underlying chip tell you what the native setting is. Its one of the reason why I like the Zowie mice, they only allow you to use the native settings without interpolation.