Last year went backpacking through Europe. Brought nothing but my Sony RX100 and my GS4 plus some clothing and a wad of cash.
Using a MicroSD in RX100 (with adapter) and being able to put the same SD into GS4 to edit the photos I like and upload to Gdrive or equivalent was an amazing feature.
I first also notice that battery used easily last me entire day of fairly heavy use (for my purposes). Now it dies at 6pm. Bought another battery on amazon for 15 bucks, and bam now lasts like it used to again. You charge the battery daily, how many charge cycles does it have before it shows signs of wear?
The formula is simple. 5" phone, minimum bazel (this is not 1960s FFS), MicroSD, user replacable battery, 3/4GB ram, vinila android, plus some nice bells and whistles like nice camera, fast proc/GPU, and you have yourself a solid phone.
Yet all these companies are like retarded midgets doing stupid shit. sony is trying to make the biggest possible bazels on the planet (WTG Champs), HTC thinks key to success not only huge bazels but also the shittiest android incarnation ever, etc.