Best Android Smartphone to Buy

My budget is about 350$. i want it to be fast quick ( im not an intense gamer ,i just surf the net play some games from time to time ) . I want it to be future proof because im gonna keep it for 2-3 years and i would prefer a good build quality ( i love glass back) and maybe a fingerprint scanner
Some of my thoughts revolve around xperia z3+ nexus 5x and lg g4

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