Which one is better Lonsdor k518ISE or obdstar X300 DP (key master DP)?

Today we share the difference between Lonsdor K518ISE and OBDSTAR X300 DP (key master DP)
vehicle coverage
obdstar X300 DP (key master DP) feedback: I have the Key Master and its Ok works 50% of the time and the rest it fails to communicate.
Lonsdor K518ISE Key programmer vehicle coverage has no feedback yet, this one looks interesting but only time will tell. From what you’ve read, you will find this Lonsdor k518ISE is a little better than AVDI for a lot less the money. It is also twice the money of OBDStar X300 DP and Xtool tablets.
It claims to work on Volvo, LR, BMW FEM and CAS4, VAG IMMO5, etc…
There are some videos on the most used European cars from Ford, PSA, Fiat, Opel, VAG, Renault…as well as American cars, Asian cars etc, judging from CI600 reputation K518ISE should work.
Lonsdor K518ISE video channel:
http://www.obd2tool.com/goods-6954-Lonsdor+K518ISE+Key+Programmer.html
Price
obdstar X300 DP (key master DP) price: more than $800 and less than $900 (google search you will find)
Lonsdor K518ISE Key programmer price: about $1200 for the first batch of 500pcs.
Conclusion:
So if you want to cover more cars you should choose  k518ise.
OBDStar doesn’t seem to offer an adequate alternative for the Android tablet products.