Ergonomically, maybe. But no matter how you grip the Sony, you always have a finger right by the sensor. Also, you don't have to pick the phone up to unlock it, which has been a bigger inconvenience than I thought it would be.
I bought the larger phone because it has similar dimensions to a 5.5 inch screen, which is great for my hand size. But the case I've been using is really bulky, and adds a fair bit extra to the sides, making it harder to use one handed. Because the Sony doesn't have a curved screen and isn't rounded on the sides, you have much more contact area with the device, resulting in requiring less pressure for the same grip. To add to that, the curved screen means you do get accidental touches, and I've still not found a decent screen protector for it.
Moreover, I needed the extended battery life of the XL. Had the screen been fine, I wouldn't have any issues with it being a little bigger. It is nicer having a smaller phone, but not end of the world. There's still no headphone jack on the smaller pixel, so there aren't any benefits (other than the screen) going to it. I bought the device on release day, so I had no idea it had the screen issues (poor visibility of everything black with the brightness at lowest).
That's the killer for me on the XL.
I guess it was wrong to say the camera is the only thing keeping me to it.
I'd say these are the reasons (unique to the XL)
- 18:9 screen (I like the extra height more than I thought I would)
- Battery life (I've been having issues with it recently, but I think it's because I've had location on 24/7)
- Extra screen real estate due to higher pixel density. Can see much more on the display, and it's sharper.
- The screen colour accuracy on the XL is really good - considerably better than the XZ which has a pink hue.
- I love the colour and design. In my person opinion, it's the best looking phone, in white and black (though the red and black iPhone 8 is now joint 1st).
I haven't had enough time to hate the Sony yet
(Though I do really hate the camera - it is *no* better than my old Z1).