I have two charge cables in that one must have came with apple watch 4 and other with apple watch 7 but I'm not sure which is which. The silver rimmed one is slightly thinner than the all white. Is one of the cables superior to the other in terms of charging speed, etc? Also I have various apple charging blocks, some smaller probably came with phone and other's larger, probably came with ipad. Does using the bigger block make a difference in watch charging speed?