Bearing in mind that UK VAT is 20% and Thai VAT is 7%, it works out as being "cheaper" in the UK if you can claim back VAT. However, if you get your 7% VAT back it makes it more desirable to buy in Bangkok or Thailand as long as it's unlocked.
As we mentioned on our Samsung Galaxy S3 page, we own the S3 and we really like it due to its impressive screen functionality, clarity of calls and so on but we do wonder what the S4 can bring to the mobile phone table that wasn't already featured in the S3 ?
Buying the Samsung S4 in Bangkok shouldn't be too difficult but there is a trend at the moment for Samsung to be ahead of the iPhone when it comes to sales and the iPhone "trendy" factor is wearing off and a number of iPhone users are expressing an interest in swapping over.
My point is that Thais love to follow the latest trends and if Samsung is the latest trend, the Thais will follow it, so whereas the Samsung S3 was popular, the iPhone 5 still had the slight edge.
There are rumours that Samsung is already having issues fulfilling orders so be prepared for a shortage and where there is a shortage and a huge demand, comes an inflated retail price in places such as MBK.