Nokia is better known for phones than tablets, but the company has recently released the T20, a 10.4-inch Android tablet that in the UK costs £179.99 (inc. VAT) for the Wi-Fi-only version and £199.99 with Wi-Fi and 4G. It's available in just one colour -- Deep Ocean, which is a matte metallic dark blue that covers the back and sides. The back is metal and so provides some defence against knocks and scrapes, although a protective sleeve is still advisable. Nokia sells a rugged flip cover for £49.99 and a rugged case for £39.99.
Nokia T20 tablet review at ZDNet