I don't know where all these wrong facts are coming from. Nokia phones were not fragile. I have dropped them many times. The battery gets out and I can insert it back and it works again. Nothing breaks. And they work year after year. I also have a cheap Chinese android phone that behaves like that. I believe mobile companies (and tech reviewers) have spread lies in this regard.

Nah, we have decades of experience of doing this. And it doesn't really affect size or price either, that was evident back when you had a choice in the matter. It's just that manufacturers would rather sell you a new phone than a new battery.

Shocking, I know...

Taking more space, yes. Being fragile, really not.

If Apple wants to make resilient devices they'd start by using materials not as fragile as glass or thin aluminium. Say, differentially hardened steel (incl. plated) or advanced composites. Just like watches.

Then, the only problem is extra space for the battery connector. They could even sell users a prismatic pouch with no plastic shell as the battery.

The actual tricky part is that integrated battery allows better cooling by use of messy thermal compound. You could have a foam thermal pad instead below the battery cover.

Even though I hate things made out of plastic, plastic IS the right material for building a phone. Plastic is hard to scratch, has grip, is lightweight, and is hard to break.

Remember iPhone 5c? People absolutely hated it because it was plastic (well, that, and some other reasons–but mainly because it seemed "cheap").

I'm not a materials scientist, but something has happened to consumer plastics in the last 40-60 years-- it's changed for the worse (I'm assuming in an effort to be "green", which happily coincides with undermining durability).

We used to be able to buy Fisher-Price toys that were tough enough to bear the weight of a car, or withstand multiple generations of abuse by children. I've got plastic toolboxes inherited from my grandfather that still hold up.

Take a look at the ratings and user photos for plastic vehicle ramps on Amazon and consider whether you think you could even get the jack stands in before the ramps collapse. Kids' toys are flimsier than ever, yet despite the "cheaper" construction they're also more expensive than ever. I bought my kids the Barbie Dreamhouse (a $100+ marvel of plastic and cardboard) that collapsed under its own weight. The original Nintendo equipment was light-years more rugged than the endless RMA experience that is the Switch.

We have the technology to make plastics that don't feel "cheap" and the products reusable, but for whatever reasons we've clearly steered away from these goals.

Plastics have actually gotten better in the intervening years, but the advances in machining have allowed far more complicated molds than was once economical. This allows designers to use less plastic, and make it "strong enough". I was recently shopping for a gift for my nephew, and was horrendously disappointed in the Fischer price products- for the money, they didn't seem anywhere near the quality I remembered. However, one only needs to examine something like cordless tools or Lego to realize quality products can be made using plastic.

To be fair, Nokia's Windows Phones used plastic which felt rather valuable and high quality. It was an excellent finish that doesn't feel out of a place in a premium device at all.