head to head
Neither is meaningfully harder - they pose close to the same test. The widest gap is execution, and it is a single point.

Reads · Mind & Math
Slow-burn tank PvP with deep meta.

Reads · Mind & Math
Naval PvP with positional warfare.
World of Tanks leans Reads (Mind & Math); World of Warships leans Reads (Mind & Math).
World of Tanks leans a little harder on execution, though the gap is small.
World of Tanks
Aim and lead matter but slow
World of Warships
Slow aim with long lead times
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
World of Tanks
Map positioning versus humans is reads
World of Warships
Map positioning and spotting are reads
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
World of Tanks
Shell RNG and matchmaking swing fights
World of Warships
Shell dispersion and matchmaker swings
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
World of Tanks
Tank loadouts and crew skills solvable
World of Warships
Captain skills and ship builds deep
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.