Difference among hot sales GM Diagnostic tools

Difference among hot sales GM Diagnostic tools:

Item No SP241, SP241-W SP163 (Tech 3) SP23 Series (GM Tech 2 Scanner)
Language English
Multi-language: English, French, German, Japanese, Italian and so on.
Total 30 languages to choose.
English, German, Spanish , Japanese, French, Thai , Portuguese, Korean
Update via email can not update update via 32MB Card
Activation No need Yes No need
OS requirement  1. GDS2 software can only installed on Windows 7/8 64bit

2. tech2win software can run on XP, Windows 32bit or 64bit
Windows XP Only No pc need
Communication Method SP241: cable communication only
SP241-W: both cable and wifi communication
both cable and wifi communication Only cable communication
Support car model GM and Opel till 2015 GM, Opel, SAAB from 1990 to 2014  GM/ SAAB/ OPEL/ SUZUKI/ ISUZU/HOLDEN around year 2013
Progamming support online programming only support both online and offline program,such as chevrolet,opel, but not for all cars support programming, need work with TIS2000 CD, programming function only available to GM and SAAB Vehicle

PS: the Tech2Win software of VCX Nano and GM MDI is same
But the GDS2 software of VCX Nano and GM MDI is not same:
VCX Nano GDS2 is 2015
GM MDI GDS2 is 2011

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