Apple's new iPhone X wil be announced in just hours, and available to buy in days. But you might not actually be able to get hold of one for weeks or even months.

That's according to one respected Apple analyst who says supplies of the premium new phone will be severely constrained for the first few weeks it is out.

A new coppery gold version of the phone will be even more constrained and might not even come out at the same time, according to KGI Securities, which has a strong track record of Apple leaks. The company is thought to be referring to that colour as "blush gold" and it will be the one new hue among the three colours the phone is expected to come in.

Photos taken on iPhone Show all 10 1 /10 Photos taken on iPhone Photos taken on iPhone Photos taken on iPhone Photos taken on iPhone Photos taken on iPhone Photos taken on iPhone Photos taken on iPhone Photos taken on iPhone Photos taken on iPhone Photos taken on iPhone Photos taken on iPhone

If that's not enough to put people off, the premium iPhone X will sell for far more than any Apple handset before it. It is expected to cost at least $999, with some expecting that the price could be as high as $1,300.

Apple hopes that it will be able to convince people to be patient with the new colours and features, the headline one of which will be a 3D sensor, according to the same report. But if they are not convinced to wait, the company will have far more plentiful supplies of the less premium and cheaper iPhone 8, which won't include the more expensive version's top features.

There have been repeated warnings that the new technologies and design used for the iPhone X make it far harder to make, and that it could be in short supply. Some had even warned that Apple might have to push back the actual release of the phone because it was due to be in such short supply, but it appears the company will in fact have some ready.