Samsung UK is running its own Black Friday deals that cover everything from Galaxy phones to QLED TVs. You can find the full list here. The top deals are £100 off the Galaxy Note9 and £140 off the Galaxy S9 (note: S9+ is only £100 down). The Galaxy Watch is full price, but you can get a free Wireless Charger Duo (worth £90) that charges both your phone and your watch. Then there are some older devices - like the Galaxy S8 and Galaxy S8+ at £160 off, along with the Gear Sport watch at £70 off. Note that you can get up to £200 for trading in an old phone and accessories are up to 50%...
Source: https://www.gsmarena.com/deals_samsung_uk_discounts_galaxy_s9_by__pound140_for_black_friday_note9_is__pound100_off-news-34322.php