LENOVO U410: POWER-HUNGRY POWERHOUSE

    At 21mm deep and weighing almost 2kg, the U410 won't worry the likes of the Asus or Sony in the thin stakes, but the pay-off comes in terms of performance.

    The Core i5 processor and 6GB of RAM makes for a more than capable performer and, unusually for an ultrabook, the Lenovo also boasts an Nvidia GeForce 610M GPU. That power does come at a price, however, and our battery stress test killed this 14-incher in a disappointing 181 minutes. If you're a gamer, this could well appeal... But keep a spare battery or power socket close to hand when using it.

Power and style, undermined by a lack of longevity

£750, LENOVO.COM/UK