Samsung Galaxy A3 (2015)

Baseus

Cylinder Waterproof Case - Black / Transparent (Max. Mobile 210 x 110 mm)

Epico

Sports Sports Armband - Black - (Max Size on Phone: 160 x 80 x 8 mm)

Spigen

A601 Universal Waterproof Case Pouch - White / Transparent (Max. Phone: 163 x 90mm)