Tests show no difference in performance between these two adapters when in use with Xpro3 software. Tests are still carried out by over a dozen of professional garages.
Do not expect it to work 100%. Xpro3 software is made for another adapter which is 3 times bigger than Easydiag or M-diag. Diagnostics function is working as intended, but the special functions are not. No one yet have reported successful automatic transmission adaptation. If AT adaptation comes in 3 stages, you may get lucky to adapt 1. All reported unsuccessful connection to Peugeot 206 and 307 ABS system. So far no good news on odometer correction function. Various databases are used for different tasks, some times an older database performance is better than the new one. It is best to use 4 databases for a single car to get maximum performance.
Update will follow.