The alternatives

imac with 5K Ret ina displ ay

The 4K iMac’s big brother comes with a 5120x2880 27-inch screen, and the option of much more powerful graphics, including the VR-capable Radeon Pro 580 8GB. From £1,749, apple.com/uk

Dell XPS 27

Dell’s 27-inch all-in-one has a 3840x2160 4K screen, and a 2.7GHz quadcore Intel Core i5 chip with 8GB of RAM. Its Intel graphics and 1TB hard drive (with no hybrid flash) are weaker than the iMac, though. From £1,699, dell.com

HP Envy 27-b190na

Another 27-inch 3840 x2160 screen, but with a meaty Core i7 processor, 16GB of RAM, a 1T HDD paired with a speedy 256GB SSD, and decent Nvidia 950M graphics, as well as B&O speakers. But it’s pricey. £1,999, hp.com