Difference Between XTOOl D7W and XTOOL D8W

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XTOOl D7W vs XTOOL D8W
 

Item	XTOOL D7W	XTOOL D8W
Picture
Price	£357	£487
Screen	7 inch	8 inch
Processor	Quad-Core 1.5GHz	4 Core 1.8GHz
Storage	2GB+64GB	4GB+64GB
Operating System	Android 10	Android 10
Display Resolution	1024*600	1024*768
Battery	5000mAh	10000mAh
Connection	USB/WIFI 2.4/5G	USB/WIFI 2.4/5G
Kickstand	Yes	Yes
CAN FD Protocol	Built-in CAN FD Protocol	Built-in CAN FD Protocol
DOIP Protocol	Built-in DOIP Protocol	Built-in DOIP Protocol
VCI	Wireless VCI	Wireless VCI
Full System Diagnostic	Yes	Yes
AutoScan&AutoVIN	Yes	Yes
Full Bi-Directional Controls	Yes	Yes
ADAS Calibration	-	Yes
Special Functions	36+	38+
Key Programming	Yes	Yes, with KC100 or KC501
ECU Coding	Yes,VAG Cars	Yes,VAG cars
Offline Programming	-	Ford,Lincoln ,Mazda
VAG Guided Function	-	Yes
Flash Hidden Function	-	Yes
ECU Programming	No	No
Topology Mapping	No	Yes
Live Data Graphing	Export Live Data as CSV	Export Live Data as CSV
Endoscope	with XV100	with XV100
Update	3 Years Free Update	3 Years Free Update

In Conclusion:

Difference: 
1. Xtool d8w with bigger screen inch, 8 inch.
2. Xtool d8w Processor 4 Core 1.8GHz, runs faster
3. Xtool d8w Storage 4GB+64GB, bigger than 2GB+64GB
4. Xtool d8w Battery is bigger, 10000mah, can use longer time. 
5. Xtool d8w more special functions 38+.
6. Xtool d8w support Offline Programming, VAG Guided Function, Flash Hidden Function than xtool d7w.
7. Xtool D8w Adds Topology Mapping, xtool d7w can not do it.     
8. Xtool D8w Adds ADAS Calibration, xtool d7w can not do it.     

Same: 
Both are Andorid 10 system. USB/WIFI connection. CAN FD, DOIP Protocol, Wireless VCI, and both can support Full System Diagnostic, AutoScan&AutoVIN, Full Bi-Directional Controls, Key Programming, ECU Coding.
Both can not do ECU Programming, if you need ecu programming, choose Xtool D9S Pro. 
XTOOL D7W and D8W can work with XV200 Endoscope
Both have 3 Years Free Update