head to head
Mini Royale asks more than Call of Duty: Mobile, and the gap is variance.

Execution · Competitive PvP
Mobile shooter execution with human prediction, plus loot variance in battle royale.

Execution · Competitive PvP
Battle-royale gunfights testing aim and positioning reads under loot randomness.
Call of Duty: Mobile leans Execution (Competitive PvP); Mini Royale leans Execution (Competitive PvP).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Call of Duty: Mobile
Touch or controller aim and movement decide gunfights
Mini Royale
Aimbot would dominate every toy-soldier firefight
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Call of Duty: Mobile
Human lobbies adapt rotations and peeks each match
Mini Royale
Fifty human players to predict in positioning and pushes
Mini Royale leans clearly harder on variance.
Call of Duty: Mobile
Battle royale drops and loot add run-to-run randomness
Mini Royale
Loot spawns and circle placement shake up every match
Call of Duty: Mobile leans a little harder on optimization, though the gap is small.
Call of Duty: Mobile
Loadout meta and map spawn knowledge reward study
Mini Royale
Drop spots and loadout knowledge form a thin solvable layer
A matching score does not mean a matching test. Two games can both sit at 10 on execution and demand completely different things of you - which is why the reasoning above matters more than the number beside it.