An arm ring, also known as an armlet or an armband, is a band of metal, usually a precious metal, worn as an ornament around the biceps of the upper arm. The arm ring is similar to a bracelet or bangle, though it must be shaped and sized to fit snugly to the upper arm.
Historically, the arm ring was commonly worn by men, and often a ring in bronze age heroic literature would refer to an arm ring, rather than a finger ring. However, in Celtic iron-age literature, "ring" would also refer to a torc.
Sri Lankan history notes that brides wore armlets to ward off ill luck. However, the armlet can be more eye-catching when it is made of gold or silver and is studded with gems. Men in ancient Sri Lanka also wore the jewellery, and Kandyan drummers can be seen wearing the jewellery as a tradition even today. Women wear arm rings ('Vangi' in Tamil வங்கி) for special occasions like weddings and Bharatanatyam dance.
Modern day arm rings are generally worn as fashion accessories by women.
Other similar item of jewellery include a waistlet, these are sometimes referred to as belts.