What smartphone feature would you actually be excited for a company to implement?

Question originally asked on Musing.io - Click here to see other answers

I would want an option to completely customize a phone. I'd want to pick my own colour, shape, size, case texture, custom logo or graphics, etc.

Phones are reaching a point where the market is over saturated and the tech is so good that it isn't getting much better. I've had my iphone 6 for almost four years and it still compares to modern phones.