|Check network coverage:
|5th generation network. Max data speed of 10 or 20 Gb/s.
|4th generation network. Max data speed of 1 Gbps (1000 Mb/s).
|3rd generation network. Max data speed of 42 Mbps.
|2nd generation network. Max data speed of 0.3 Mb per second.
|Use Wi-Fi for mobile phone calls and texts when no network signal.
|4G Calling (VoLTE)
|Voice over LTE (4G Calling) makes clearer HD calls over 4G networks.
|Unused mobile data allowance rolled over from one month to the next.
|Tethering allows you to share your mobile internet with other devices.
|e-SIMs are digital virtual SIM cards downloaded onto supported mobile handsets.
|Network Frequency Bands
|5G (NR) Frequency
|4G (LTE) Frequency
|800 / 1500 / 1800 / 2100 MHz
|800 / 1800 / 2100 / 2600 MHz
|3G (UMTS) Frequency
|2G (GSM) Frequency
SMARTY is a UK mobile virtual network operator running on the Three network. SMARTY offers SIM-only plans with no lengthy contracts or credit checks, and provides monthly discounts on unused data from previous months.
T-Mobile UK is a mobile network operator in the United Kingdom, owned by Deutsche Telekom since 1999, and originally launched as One2One.
In 2009, Deutsche Telekom and Orange SA announced that the T-Mobile network was to be merged with Orange UK in a joint venture with EE Limited to form the UK's largest mobile network.