Handheld devices like smart phones, once viewed as a diversion and interference have become an integral part of healthcare. Medical informatics helps us by analysing complex data in making clinical decisions and knowing recent advances at the point of patient care. Together handheld devices and Informatics is changing the way medicine is being practised. The anaesthesia and critical care related applications are discussed and possible drawbacks are also discussed.

Keywords: Informatics; Anesthesia informatics; Anaesthesia; Critical care; Devices; Smart phones.