TOPDON RLink X7 is a VCI box that can be used with OE software to diagnose, program, modify, and perform other original equipment functions. Supports BMW, Benz, Porsche, VW&GM series models. What’s it different from the VXDIAG VCX SE or NANO diagnostic tool? Here we’ve listed all their functions below:

TOPDON vs. VXDIAG Comparison
| Brand | Model | Diag year | Program-ming year | Software | TOPDON RLink X7 | VXDIAG VCX SE | VXDIAG VCX NANO | 
| Porsche | Porsche | 2002- | 2002- | PIWIS4 (Engineer) | √ | √ | |
| 2002- | 2002- | PIWIS3 (Engineer) | √ | √ | |||
| 2002-2016 | 2002-2016 | PIWIS2 (Engineer) | √ | ||||
| Benz | Benz, Beijing Benz, Maybach, Genie | 1996- | 1996- | XENTRY DAS | √ | √ | |
| Support Benz 447 | XENTRY 24.6 | √ | |||||
| 2010- | DTS | √ | √ | ||||
| 2004-2010 | Vediamo | √ | √ | ||||
| BMW | BMW, BMW Brilliance, Mini, Rolls Royce | 1996- | 2004- | ISTA | √ | √ | |
| Support latest BMW | ISTA 4.48 | √ | |||||
| 2004- | Esys/ INPA Winkfp | √ | √ | ||||
| VW | Volkswagen, FAW-Volkswagen, Shanghai Volkswagen, Volkswagen Business, Seat, Bugatti, Audi, Skoda, Bentley, Lamborghini | 2004- | 2004- | ODIS-E (Engineer) | √ | √ | √ | 
| 2004- | 2004- | ODIS | √ | √ | √ | ||
| ODIS E18.1 | √ | √ | √ | ||||
| ODIS 24.1 | √ | √ | √ | ||||
| GM | Buick, Chevrolet, Shanghai GM, Cadillac | 1996- | 1996- | DPS (Engineer) | √ | √ | √ | 
| TLC | √ | √ | √ | ||||
| GDS2 | √ | √ | √ | ||||
| 1996-2013 | 1996-2013 | Tech2Win | √ | √ | √ | ||
| China GM | RDS | √ | √ | √ | |||
| SCS | √ | √ | √ | 
Conclusion
1. Only TOPDON RLink X7 can support the latest Benz 447 XENTRY24.6 and BMW ISTA 4.48 software.
2. Only VXDIAG VCX SE can support 2002-2016 Porsche PIWIS2 (Engineer) software.
3. RLink X7& VCX SE support more brands while NANO supports less(VW,GM).




