FastLane

X60 was announced early 2020.  Apple probably missed it by a month for production. 

The bottom line is kinda this... No different from what we went through on 4g/lte modems.

Rev 1 moderns were pretty bad.  Didn't support many bands.  Were power hogs. 

Rev 2 fixed  compatibility and marginally better power.  Didn't have final key features telecoms wanted to roll out. Power not great.

Rev 3 were basically  right on.  All key features present.  Power decent   Marginal improvements made after that. 


Someone asked if the 888 was SoC with X60.  Answer is yes.