The rumours were true, Apple has finally equipped an iPhone with a large battery. Early teardowns show that the company's latest flagship of flagships includes a sizable upgrade over the iPhone XS Max, which should help give it stellar battery life.
https://www.notebookcheck.net/The-Apple-iPhone-11-Pro-Max-looks-set-to-be-a-battery-life-champ.434996.0.html
First i have no idea how your battery test goes but Note 10+ has - according to MANY you tube videos - it has consistently beaten the iphone xs max , go check for yourself
and Second even though your calculation of the battery capacity isn't wrong
GSMARENA have said that according to apple - it is actually 3500mAh