I think the battery in the MS906 TS is bigger capacity than a MS 905 and the Android OS is a later version. Other than the TPMS functions I think they both would  have equal coding capabilities. I think the MS905 has been superseded by the MS906BT, so I figure MS905 Mini is no longer being produced and after the inventory is reduced they'll announce when the update support for the MS 905 will come to an end, possibly a few years.  MS905  seems to be priced attractively and with updates compromising older car coverage as new coverage is added, I would rather just buy a newer  price point Autel scanner every several years and just keep the older platforms to fall back on till they get things right with the updates.     

  i called a few usa tool ware houses  today  looking for the ms906bt.  none of them  sell the ms906bt  they told me the ms906bt is not for the american  car market.  only the ms906 and ms906ts  is for the american car market.      very confusing.