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

- 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 / Aspect | Kingbolen Ediag Elite | Xtool A30M | Konwei Kdiag |
|---|---|---|---|
| Vehicle Coverage | 100+ car brands | 85+ car brands | 39 car brands |
| Systems Covered | Full OE-level all systems | Full OE-level all systems | Full OE-level all systems |
| Special Functions / Service Resets | 15 | 23 | 5 |
| Bi-Directional / Active Test | Yes | Yes | Yes |
| Mobile App | EDIAG app for iOS and Android | AnyScan app for iOS and Android | KDIAG app for iOS and Android |
| Live Data & Graphing | Yes, real-time data graphing and recording | Yes, real-time data graphing and recording | Yes, real-time data graphing and recording |
| Auto VIN & Vehicle ID | Auto VIN + manual selection | Auto VIN + manual selection | Auto VIN + manual selection |
| Languages Supported | 22 | 15 | 8 |
| Update Policy | Lifetime free online updates | Lifetime free updates | Lifetime free updates |
| FCA | Yes | Yes | Yes |
| Price (Amazon) | https://amzn.to/3DHyiF8 | https://amzn.to/41UFRAm | https://amzn.to/434DnSr |
| Price (Aliexpress) | https://s.click.aliexpress.com/e/_c3AUE5YF | https://s.click.aliexpress.com/e/_oFG5r5P | https://s.click.aliexpress.com/e/_oFraD8J |
| Price (Official) | https://kingbolentool.com/products/kingbolen-ediag-elite | https://www.xtoolglobal.com/products/xtool-anyscan-a30m | https://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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