Been looking for one of these since the rumoured price of the tab s3 is looking to top £500...
Argos have reduced the price but their website states it's for the t810 model (exynos). On the off chance I reserved it at Nottingham broadmarsh.
When I viewed it, it was actually the t813 (newer version with snapdragon processor).
Cannot say whether this would be the same for all stock in all places but worth a shot.