What’s the difference between VXDIAG VCX DoIP Porsche Tester III and OEM Porsche PIWIS III Tester? Check table comparison below:

Item	VXDIAG VCX-DoIP for Porsche	OEM Porsche Tester III PT3G
Item No.	A306-3	A306-4
Image
Original/Clone	Original VXDIAG	Clone
Software version	38.400.000	38.200.040
Language	German English French ItalianSpanish Japanese Chinese Russian Dutch Portuguese	German English French ItalianSpanish Japanese Chinese Russian Dutch Portuguese
PIWIS License	Unlimited	Unlimited
Update	By new SSD	By new SSD
DoIP enabled	Yes	Yes
Support Porsche year	All Porsche from 1998 till now	All Porsche from 2002 till now
Online immobilizer programming	Yes	Yes
Full-system diagnosis	Yes	Yes
Guided fault finding	Yes	Yes
Maintenance circuit diagram view	Yes	Yes
Developer Mode	Yes	Yes
Original software compatibility	No	No
WiFi connection	USB/WiFi/WLAN	USB/WiFi
Package	1pc x Piwis tester III VCI1pc x USB Cable   1pc x OBD Cable 1pc x Lenovo T440P Laptop 1pc x LAN cable 1pc x 240G SSD	1× Piwis3 Tester1× OBDII Cable   1× USB Cable 1× 240GB Software SSD 1× Panasonic CFAX3 Laptop
Other software license	SDD, GDS2, Techstream, HDS, XENTRY, ISTA,IDS,VIDA etc	No possible to add other license
Price	$1845	$2599

What’s the difference between Piwis 2 and Piwis 3:

PIWIS Tester III covers all new Porsche models like new Panamera 971, Cayenne 9Y0, Cayman 981 GT4 clubsport, etc., which are not supported by PIWIS II at all and will never be supported in the future. PIWIS Tester III also supports full range of diagnostics functions for all the Porsche models which have ever been released.

Why you should have a Porsche Piwis 3:

* vehicle coverage up to 2018: 911, Macan, Cayeme, Panamera, Boxter Cayman
* Fast and stable connection Simulation mode ( diagnostic session without VCI connection )
* Support online immobilizer programming
* New DoIP diagnostic technique based on Ethereum for post-2017 Porsche
* Developer mode enabled

Which Porsche model and year can be done with Piwis 3:

Piwis 3 is confirmed to work with all Porsche from 1998-2018:
Porsche 911(997) (991)
Boxster/Cayman (987)
Cayenne up to MY 2010
Cayenne from MY 2011
Panamera

Especially the latest models:
Paramera (971) 2018
Caynenne (92A) 2018
Macan (95B) 2018
911 (991) 2018
and othe1 old models

https://www.obd2tool.com/blog/2020/03/07/vxdiag-vcx-doip-porsche-tester-iii-vs-oem-porsche-piwis-iii/