What is the difference between Topdon Artidiag600S and Artidiag900 Lite diagnostic scanner? Which to buy?

AD600S vs AD900 Lite

Item	Artidiag900 Lite	Artidiag600S
CPU	4-Core 1.8GHz	4-Core 1.8GHz
RAM	2G	2G
ROM	32G	32G
Battery	10000mAh/3.7V	3350mAh/3.7V
Operating System	Android 11.0	Android 11.0
Screen Size	20.3cm (8inches)	12.7cm (5inches)
Touchscreen	√	√
Screen Resolution	1280×800	1280×720
WiFi	2.4 & 5 GHz	2.4 & 5 GHz
Camera	Rear 5 MP	x
Communication	Bluetooth	Main Cable
Button	2	6
Full OBDII Functionality｜Read DTCs	√	√
Full OBDII Functionality｜Clear DTCs	√	√
Full OBDII Functionality｜Live Data	√	√
Full OBDII Functionality｜I/M Readiness	√	√
Full OBDII Functionality｜Freeze Frame Data	√	√
Full OBDII Functionality｜O2 Sensor Test	√	√
Full OBDII Functionality｜On Board Monitor Test	√	√
Full OBDII Functionality｜Evap Test (Mode$8)	√	√
Full OBDII Functionality｜Vehicle Information	√	√
System Support	All systems	4 systems
System Diagnostics｜Read ECU Information	√	√
System Diagnostics｜Read DTCs	√	√
System Diagnostics｜Freeze Frame Data	√	√
System Diagnostics｜Clear DTCs	√	√
System Diagnostics｜Data Stream	√	√
Bi-Directional Control/ Active Test	√	x
Special Function (inside the control unit)	√	x
Hot Functions	8	9
Online Coding	x	x
Online Programming	x	x
Flash Hidden Function	x	x
Gateway Access	FCA/Renault/Nissan/VAG SFD	FCA/Renault/Nissan/VAG SFD
IMMO	x	x
Guided Function	x	x
Diagnostic Topology Display	x	x
AutoVIN	√	√
SCAN VIN / License	√	√
CAN-FD	√	√
DoIP	x	x
J2534	x	×
Others
Remote Desk	√	√
Repair Information	√	x
DTC Look UP	√	√
Battery Test (12V)	x	x
Charging Test (12 / 24V)	x	x
Cranking Test (12 / 24V)	x	x
Print	WiFi / PC	WiFi / PC
Vehicle Coverage	100+	70+
Update Method	WiFi	WiFi
Software Update	2 Years Free	Lifetime Free Update
Expand
Diesel Vehicle Diagnosis (HD)	x	x
ADAS	x	x
Electric Vehicle Diagnostics (EV)	x	x
T-Ninja Box	x	x
Battery Tester (BT Mobile ProS)	x	x
Thermal Imager (TC001)	x	x
Oscilloscope	x	x

In sum:

• Topdon AD600S is a 4-system diagnostic scanner, while AD900 Lite supports full system diagnostics.
• AD900 lite supports more vehicle brands. It also does bi-directional active test, AD600S does not.
• AD900 lite connects via Bluetooh while AD600S connects via USB cable.
• AD600S comes with lifetime free update while AD900 Lite only supports 2 years free update.

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