Grail CF SLX 8 Di2

Looking at buying this. Been rocking a Jamis Renegade. Still new to biking but have 1k miles with it… looking to make a significant upgrade.

Canyon is recommending a size S, my Jamis is a 56 and it is a tad big for me, stretched out leaving sore hands and elbows. I’m 5’10” … 33” inseam … 220lbs

What size crank does it come with? Looking to add on a 4iiii power meter.

Also, does the Shimano Di2 have Bluetooth or will I need to purchase a EW-WU111?

Thanks, was really debating between the CF SL 7 but leaning heavily towards the CF SLX 8 Di2 majority riding on a paved road with some gravel road riding.