> Battery life.

Nobody but technically inclined users care that much about battery life anymore. For most people, you can throw a rock and hit a phone that has all day battery life. People are used to charging their phones nightly.

People will take a battery life improvement, but it's not a driver. Many manufacturers have slapped in giant batteries or included battery modules, removable back cases that allow for double life batteries. None have caught on, because really. If I have to charge it once a day or twice if I'm using it for games all day or something, then what is the difference? Have a charger at work, a charger at home and a decent phone, and you'll never have a battery life issue. I don't think I've depleted my iPhone X once and I've owned it since day one.

> Stock Android

Another thing nobody but techies care about, and even they are mixed. I know plenty of people who prefer modern TouchWiz, or more likely, simply don't care. Caring about stock Android really only applies to those who spend most of their time in the launcher or OS, which isn't most people. For most, their phone is a gateway to apps, and this goes double for Android phones.

If the primary use of your phone is launching Instagram, Snapchat, WhatsApp, Gmail & Facebook, then who the hell cares what the launcher interface is? Most younger and less technical users don't even use the dialer or contacts or other apps people typically leave stock.

> Durability/Ease of Repair

I can't believe people can actually say this with a straight face. Once again, the last thing on people's list. It's far and away a nice to have, not anything that actually influences a purchasing decision for a significant number of people. For those that it does matter to, they'll just slap it in a case anyways. It also requires a boatload of design compromises to make things easier to repair.

> Bring back the landscape QWERTY keyboard

The icing on the cake. I don't know who you know, but seriously, nobody wants a hardware keyboard. Most people under 30 (y'know, the people who buy new phones frequently and use them as primary computers) would actually be significantly slower on a hardware keyboard, regardless of layout.

What you've described is a giant phone, double or triple the size of any other normal between the massive battery, use of durable materials and durable slider mechanism. Nobody wants this. You might, and some of your friends might, but any company that took a run at actually making this phone would have abysmal sales.

You make a ton of assumptions here, all of which smack of someone who hasn't spoken to a normal consumer or someone under 30 in a long time. I suggest hanging around retail for a little bit, because you're in for a rude awakening.

Things people actually care about in a phone, in rough order:

1. OS - This is tied for the next two for number one. Nobody gives a shit about stock Android, but most are pretty set in one camp or the other in regards to iOS v Android at this point. People do switch though, so its not the highest priority for all.

2. Screen Size - Massive consideration. Many want a giant screen, many want a manageable screen, both are pretty set in their ways.

3. Camera - I can't count the number of times people have asked me for a phone recommendation and had this as their number one concern. I put the other two first because they tend to have those decided before speaking to me, so they are typically more important. Camera quality, as subjective as that can be, can really sell a phone.

4. Design - Gasp! Weight, thickness, materials. Actually really important. It may not show up on a spec list, but people do make decisions based on this even if they aren't acutely aware.

5. Price - For many this is the number one factor, but for many it's not even on the list so it's hard to know where to place this one in terms of order.

6. Cool new features - Hugely important, triggers upgrades. The giant OLED screen & FaceID sold plenty of people on the iPhone X. "What can this phone do that my phone can't" is a strong driver of upgrades that aren't required due to a failing/broken phone.