Top 5 Best Laptops Under £400 UK – Review & Guide HP 250 G6 Laptop . Score: 73/100. Laptops Best Laptop under £400 UK [2020] October 18, 2020 October 17, 2020 by Alex. We’ve recently picked up review samples of the new Acer Aspire 3, which is priced around £400, and is undergoing testing now. And for the best Windows laptop under £300, it's another Lenovo - this time the excellent value IdeaPad 3 (£299). With its G6 laptop … You can find a decent enough laptop no matter how tight your budget is. Regarded as a top brand in the PC world, many consumers recognise HP for providing high-quality products to the market. Asus Vivobook 15.6-inch laptop: £299.99 at Argos This is a full 15.6-inch display on a £300 laptop deal - an excellent offer straight off the bat. For under £300, you get a touchscreen laptop that can easily be converted into a tablet by folding the screen over. If you only have £400, then you can still find a quality laptop … We’ll update this article as and when new reviews are published.