Here are the table comparisons among OBDSTRA X300 Pro3 Key Master, OBDSTAR X100 Pro and SuperOBD SKP900 auto key programmer. Tab. 1 OBDSTAR X300 Pro3 (Key Master) vs. SKP-900 S/N Feature&Function OBDSTAR X300 Pro3 SKP900 Key Programmer Hardware New design in appearance **** *** Three-proof design(Water-proof,Shock-proof,Crash-proof), multi-angle shock resistance **** * Industrial screen, clear vision **** *** Humanizing design, convenient operation **** **** Latest PCB technology, quick download speed **** *** Silicon button, comfortable touch **** *** Software &Upgrade OBDII function √ × More cars can be supported to adjust mileage More ECU matching function deployed with, for example, to replace Toyota/Mit ECM **** ** More qualified and stable, and rarely occurs communication failed, For example, matching proximity of HYUNDAI KIA **** **** The most coverage of Chinese cars **** **** Optional choice offered, such as OIL/SERVICE,EPB and Battery Matching **** *** One key upgrade, single model upgrade supported √ × Subaru can be supported √ × EEPROM/read pin code, initialization,data recovery √ × Ferrari can be supported × √ Immo √ √ Remark: Five star is the top level Tab. 2 OBDSTAR Key Master vs. OBDSTAR X100 Pro S/N Feature&Function OBDSTAR Key Master OBDSTAR X-100 Pro Hardware…