Which Apple features are Samsung accused of copying?
25 August 2012 Last updated at 14:30 BST
A US court has ordered Samsung to pay Apple $1.05bn (£665m) in damages after upholding allegations that several Samsung devices had infringed Apple's intellectual property, including design patents and some functionality.
Samsung has promised to appeal against the decision describing it as "a loss for the American consumer".
Technology journalist Adrian Mars looks at the features Samsung has been accused of copying.