Buy similar laptop of simatic field PG M2

Hi, I was using simatic field PG M2 laptop for our siemens PLC, its HDD gone. Now want to buy new laptop with installed siemens software license. 

I do not know which one is similar to the old one.

can i buy this, will it be compatible for our PLC system line old one laptop?

Siemens Simatic Field PG T490-PCWK-SIMATIC

or

simatic field PG M4

or

simatic field PG M5

or

or simatic field PG M6

Please suggest.

Appriciate your help onthis.

Hello,

The only PG that is not discontinued is PG M6, so it is advisable to buy the latest version.

Thanks you

Hi,

First of all, you didn't mention about the PLC / HMI you have on your site! and that is important for the type of softwares you use.

I have Field PG M2, M3 and M4 and each one is good for a series of system that was designed by the same (Mainly about HMIs).

For example: if I try to open HMI that was designed by M2 on M3 or M4 then I have to go to every screen and adjust the size of everything and so on...

M4 will not come with Step 5 then you will have problem if your system is S5

and a lot more