Looks like the " Samsung Galaxy M11 " is suitable for your needs, including a TFT PLS display coming in at 6.4" at a resolution of 1080p.
Purchase Link (Amazon UK) Samsung Galaxy M11 Mobile Phone Sim Free Smartphone - Black [Amazon Exclusive]: Amazon.co.uk: Electronics
Unfortunately, this mobile is only available on Amazon. If that won't work out for you, feel free to reply.