Like other PC manufacturers, Acer has been experimenting with the convertible Ultrabook form factor. That journey started with last year's Aspire R7, a multimodal laptop with an easel stand and a 15-inch display that makes it look and feel more like a transforming all-in-one desktop than a convertible notebook. This year's Aspire R13 shows Acer has been listening to user feedback in slimming its multimodal design.Starting at just $899 (£610, AU$1,170) with the latest Intel Broadwell processors and a 13-inch touchscreen display, the Acer Aspire R13 challenges convertibles including the Lenovo Yoga 3 Pro ($1,249, £850, AU$1,625), HP Spectre x360 ($1,149, £780, AU$1,495), and detachable 2-in-1s like the Surface Pro 3 ($799, £545, AU$1,040) and the Dell Venue 11 Pro 7000 series ($749, £510, AU$975).