Before we dig into the details, I strongly advise preordering these cameras immediately if you have even a remote interest in them. They are in extremely high demand, and I expect preorders to long consume supply. Orders are easy to cancel, but lines are not easy to get to the front of.
Important: Using the links on this site, including below, to place your order provides important support. Thanks in advance for that!
Extensive Hands-On Information: Canon EOS R5 Mark II Canon EOS R1
If you are short on time, browse the feature summaries near the top of each page. Note the comparisons between the R5 II and the R5, R6 II, R3, and R1 included on the Canon EOS R5 Mark II page.
Preorders
Canon EOS R5 Mark II: B&H | Adorama | Canon USA | Amazon (all available countries) | WEX | Camera Canada
Canon EOS R1: B&H | Adorama | Canon USA | Amazon (all available countries) | WEX | Camera Canada
Get extra Canon LP-E6P Batteries: B&H | Adorama | Canon USA | WEX
Canon BG-R20 Battery Grip: B&H | Adorama | Canon USA | WEX | Camera Canada
Canon BG-R20EP LAN Port Grip: B&H | Adorama | Canon USA | WEX | Camera Canada
Canon CF-R20EP Cooling Fan Grip: B&H | Adorama | Canon USA | WEX | Camera Canada