If you are in UK and are very much interesting in buying LG G5, Amazon UK has listed G5 32GB Sim-free variant and is up for pre-order.
Titan Grey and Rose Gold variants are currently up for pre-order. The said phone is unlocked or SIM Free variant and is listed for £529 (roughly $750 / Rs. 50,400).
Amazon UK is estimating release date of LG G5 on April 8, 2016, which is the same release date for the Canadian markets. It seems that Korean phone maker is planning a world wide release.
Moreover, under special offer, Amazon UK is also offering pre-order price guarantee where it will charge the lowest price in-case the price is reduced by the time of release date.
You can check out the LG G5 Specs here.