Which operating system your phones has?

Which operating system your phone has? Are you able to answer that question ?
Don’t worry many of you are not aware of that thing , that’s that’s why here is the solution for that question!
Just check your hand set from the list below and get the answer of that one!

Symbian OS v6.1 
Nokia 7650
Nokia 3650
Nokia 3660
Nokia N-Gage
Nokia N-Gage QD
Siemens SX-1
Sendo X 

Symbian OS v7.0 
Nokia 3230
Nokia 6600
Nokia 6620
Nokia 6260
Nokia 6670
Nokia 7610
Panasonic X700
Panasonic X800 

Symbian OS v8.0 
Nokia 6630
Nokia 6680
Nokia 6681 

Symbian OS v8.1 
Nokia N70
Nokia N90 

Symbian OS v9.1 
Nokia N91
Nokia 3250
Nokia E60
Nokia E61
Nokia E70
Nokia N71
Nokia N80
Nokia N92
More list of newest handsets will be added in the next posting!
Enjoy!