Kingbolen Ediag elite vs. XTool A30 vs. Konwei Kdiag

If you are looking for cheaper smartphone adapter that can do full-system scan, service procedures and bi-directional testing, you will end up choosing from these 3.

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Quick Comparison

ediag xtool kdiag
  • Konwei KDiag: It’s crazy it costs only $25-30 on Aliexpress (see link below) and still can scan all modules + do bi-directional tests. However, from my experience those features will not work on every model even if it is one of supported brands.

  • Kingbolen Ediag Elite: This one is definitely more reliable than Kdiag with full scan and bi-directional testing and services working properly on supported brands. It supports most brands. App can be sometimes slow, especially when working with old vehicles.

  • XTool A30M: This one has most service procedures (23) and is fastest from all of them. I also liked it most for data logging and interface in general is made simple, fast and functional. This one is my favourite, but it is also most expensive from these 3.
Feature / AspectKingbolen Ediag EliteXtool A30MKonwei Kdiag
Vehicle Coverage100+ car brands85+ car brands39 car brands
Systems CoveredFull OE-level all systemsFull OE-level all systemsFull OE-level all systems
Special Functions / Service Resets15 235
Bi-Directional / Active TestYesYesYes
Mobile AppEDIAG app for iOS and AndroidAnyScan app for iOS and AndroidKDIAG app for iOS and Android
Live Data & GraphingYes, real-time data graphing and recordingYes, real-time data graphing and recordingYes, real-time data graphing and recording
Auto VIN & Vehicle IDAuto VIN + manual selectionAuto VIN + manual selectionAuto VIN + manual selection
Languages Supported22 158
Update PolicyLifetime free online updatesLifetime free updatesLifetime free updates
FCAYesYesYes
Price (Amazon)https://amzn.to/3DHyiF8https://amzn.to/41UFRAmhttps://amzn.to/434DnSr
Price (Aliexpress)https://s.click.aliexpress.com/e/_c3AUE5YFhttps://s.click.aliexpress.com/e/_oFG5r5Phttps://s.click.aliexpress.com/e/_oFraD8J
Price (Official)https://kingbolentool.com/products/kingbolen-ediag-elitehttps://www.xtoolglobal.com/products/xtool-anyscan-a30mhttps://www.konnwei.com/product/453.html

Will this scanner support what I need?

Often I got asked if scanner is supporting X feature on Y car model. However I cannot say with certainty as all OBD2 scanners can be sometimes unpredictable and I most likely haven’t tested same scanner on same car model.

If you have questions, you can ask sellers in stores before purchase (links in table) or just shoot them an email:

Konwei: konnwei@konnwei.com
Xtool: info@xtoolglobal.com
Kingbolen: sales_manager@kingbolen.com

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