What future smartphones should look like (Samsung,LG,etc. should carefully read this)

Hello guys,

i got really bored from the design and missing features of new devices from every manufacturer and didn´t understand some choices they made.
It all started really great back in the days, but nowadays the devices just get faster and lack a lot features and have overall some design issues.

So here´s a list what a smartphone should look like in the future ... i know everyone has his own opinions and taste :) :

First of all every builder should have 2 phones with the same hardwarespecs but different screensizes (Yes, Sony finally understood that point).
For the normal one handed user the small build should be max 5 inches in diameter with small bezels to ensure you can use it with one hand.
The (business/heavy user) model should have under 6 inches to be portable enough to fit in a pocket of jeans for instance.

Now the more important specs:
Most important: Replacable Battery and slot for microSD-Cards (Thank you LG for still mainting this option and Samsung go to xxx for you new devices).
Speaking of battery power, it should be enough to maintain 2 days before charging under normal usage.

Waterproof phones are not that usable in everyday life for the following reasons. The Z-Series and their hidden USB-Port are not good, if you charge them over USB. The dock is a nice option, but i like charging my phones everywhere with the microusb-cables out there in the wild.
So in my opinion if a smartphone must be waterproof the USB-Port should be too. If not there should be an extra waterproofversion from any manufacturer for people that drop their phones in the toilette or for voyeurs out there. In case of diving just a good old gopro.

There should be and option for everyphone to unlock the bootloader officially. (Thank you HTC!!! :) ) and there build be no exceptions from build to build or any possibilty for carries to modify this option.
I you buy a phone you should be to do with it as you please, even if it means losing the warranty.
Speaking of open bootloaders: If the manufactures would in implent a (encrypted) backupoption in their stock recoveries, t think many people would not root their devices or use a custom recovery.

The overall design of the corners should not be to edgy and not to round. (For instance the LG G2 was too round but comfortable, the G3 quite right and comfortable in hand and the pocket and the G4 is quite annoying to hold in the hand because of its sharp corners)

There should be a built in QI-Chargingpad to protect the USB-Port from to much mechanical usage (e.g. LG has made a good job by including that in the G3, but in the G4 i have to buy a leathercover (which i don´t like for everyday usage) or use a QI-Sticker for the cheap plastic cover which is always to thick to fit seemlessly)

The edges of the should habe any cheap material design (e.g. Samsungs cheap chrome-edges look like **** after a year, which is a lot better on the S6 with ist metalcase, but metal don´t like bumps to hard edges to, so the get dents after a while)
LG has done a better job on the G2 and G3, the G4 on the other hand got more vunerable.
Sony Z-Series is quite good in that area.

i hope i got everything in that list that bothers my mind, if i forgot something, just put it in the comments and i will edit this list if necessary.