Is it brand new or used?
£329.91 Geekbuying (including shipping) £355 AliExpress (via DHL so likely to incur customs charges) £399 eGlobal £388.59 GearBest This looks like the cheapest price by some margin!
I think it needs android 9 to work properly but maybe. Defo worth a look into it. Here's a video that shows the different and tells you where to download it from
Can that go on any android phone.?