If CES is the party deck of the mobile technology world, Mobile World Congress is the engine room. It’s where the world’s carriers meet infrastructure vendors and telecom ministers, and Very Serious Business takes place. Handset makers from the top tier to the bargain basement all clamor for attention and, with any luck, something interesting will turn up.

This year, three major vendors unveiled flagship phones, each addressing what the companies seem to think are very different customer needs. I was able to do quick tryouts of the LG G5, the Samsung Galaxy 7 and the HP Elite x3 — revealing three sophisticated companies with amazingly different views of the world.

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