Voltage: 230V AC
Frequency: 50Hz
Plug Type: Type G (UK three-pin rectangular blade plug)
Important: The UK uses a unique three-pin plug system found almost nowhere else globally. You will definitely need an adapter unless coming from another UK territory (Ireland, Malta, Cyprus, etc.). Most electrical devices (phones, laptops, cameras) have universal voltage (110-240V) and only require an adapter, not a voltage converter.
Most modern hotels provide USB charging ports built into rooms. Public spaces, cafes, trains, and trams increasingly offer USB charging. However, a UK adapter remains essential for laptops and devices without USB charging.
SIM Cards: UK uses standard nano-SIM. Major networks include EE, Vodafone, O2, and Three. Tourist SIM cards available at airport, phone shops, and supermarkets (from £10 for 5-10GB data). Most plans include unlimited UK calls and texts.
eSIM: Visitors with eSIM-compatible phones can purchase digital UK plans online before arrival (Airalo, Holafly offer tourist eSIMs).
WiFi: Free WiFi widely available in hotels, cafes, restaurants, museums, and shopping centers. Starbucks, Costa, Pret, and most independent cafes offer free WiFi. Metrolink trams and many buses have free WiFi.
Emergency Numbers: