Sry, that's a lady's toy.
What we want is something Sony Xperia Z1/Z3/Z5 Compact came pretty close. Approx 4.5", quite powerful, stays working after little rain, battery lasts quite long.
Sony abandoned the concept in X series - Compact in that series lost the IP rating. What they should've done - add less plastic-y frame and back cover (fingerprint smudges only on screen please) and make the phone 2mm fatter to give even more battery power.
But the marketing department knew better...