Re: a £200 phone that does everything an iphone does.
When I got my 8 core £200 Android the bluetooth audio was perfect.
Problems with Bluetooth are usually entirely unrelated to hardware. Specifically when it comes to Bluetooth Apple has a shocking reputation but I suspect what you're experiencing is some kind of interference: Bluetooth is lower power and shares the unlicensed 2.4 GHz band with, amongst other things, wifi, but will also suffer near strong EM fields such as in a train station. Range is also a lot less than you might imagine, though this can depend on peripherals, some of which are really shit: I get a good 8m through walls from my sidebar but about 4m from my kitchen radio.