What's the difference between an Explorer II and a GMT II?

[falling4arolex]

A few days away from purchasing my first Rolex and still debating between a Sub ND (14060M) or a GMT II (116710LN). In case you're wondering why the 14060M, it's because my AD no longer has the Sub Date (16610) and I don't wanna fork up the money for the New Sub. I would rather buy the GMT II for a few hundred bucks less. Hope my rationalization makes sense to everyone.

Anyways, my question is what's the difference between the Explorer II and the GMT II?

In my opinion, the GMT II is a much better looking watch. But in terms of functions, it seems like the Explorer II has the same 24-hour bezel and 12-hour hand for simultaneous use of a secondf time-zone.

Does this mean that the Explorer II can also be considered a pilot's watch?

Thanks in advance!