Clam mobile phone, cheap

It is shameful that we should have this type of accessory for a mobile phone costing 2x more expensive than a digital camera today.
A screw on the chassis is not hard to conceive at the manufacturer level.
There is not much to say except that all is fragile because of the sub-density plastic. Brittle at best. Because of that the manufacturer has not dared to put a tense spring. Some heavy or smooth phones barely stand. But even doubling the price, you better not. Sincerely, on the internet, it's a lottery. You may well fall as bad fall on a Chinese product. They all work (at least initially) but hold the road, it's another story. Today, we no longer buys for 10 years. Nobody guarantees that a product is still serviceable after 10 years. Even its existence. And we do not speak of electronic, talking to a derisory mechanics.