What is the difference between warranty and guarantee?

In Germany, 'warranty' (Gewährleistung) is a mandatory legal right under the BGB for defective goods; 'guarantee' (Garantie) is a voluntary, extra promise by the seller or manufacturer.

In Singapore, a 'warranty' is a legally enforceable term under the Sale of Goods Act — breach gives rise to damages but not cancellation of the contract. A 'guarantee' is a voluntary promise by a seller or manufacturer, not automatically part of the contract unless incorporated, and has no statutory definition or automatic legal effect.