HTC’s One has been given a phablet-style makeover with the introduction of the 5.9-inch HTC One Max, a variant that adds more than an inch of extra display space to the company’s flagship smartphone.

The bigger the phone, the harder it is to hide. After a slew of detailed leaks, HTC is finally ready to announce the HTC One Max: an enlarged version of the original One that boosts the size of the ...