Compare Sky Mobile with ASDA Mobile Network

Features
Network Provider O2 Vodafone
Check network coverage: Sky Mobile coverage ASDA Mobile coverage
5G Network Yes Yes
5th generation network. Max data speed of 10 or 20 Gb/s.
4G Network Yes Yes
4th generation network. Max data speed of 1 Gbps (1000 Mb/s).
3G Network Yes Yes
3rd generation network. Max data speed of 42 Mbps.
2G Network Yes Yes
2nd generation network. Max data speed of 0.3 Mb per second.
WiFi Calling Yes Yes
Use Wi-Fi for mobile phone calls and texts when no network signal.
4G Calling (VoLTE) Yes Yes
Voice over LTE (4G Calling) makes clearer HD calls over 4G networks.
Data Rollover Yes No
Unused mobile data allowance rolled over from one month to the next.
Tethering Allowed Yes Yes
Tethering allows you to share your mobile internet with other devices.
eSIM No No
e-SIMs are digital virtual SIM cards downloaded onto supported mobile handsets.
Network Frequency Bands
5G (NR) Frequency 3500 MHz 3500 MHz
4G (LTE) Frequency 800 / 900 / 1800 / 2100 / 2300 MHz 800 / 900 / 1500 / 1800 / 2100 / 2600 MHz
3G (UMTS) Frequency 900 / 2100 MHz 900 / 2100 MHz
2G (GSM) Frequency 900 MHz 900 MHz

Launched to the public in January 2017, Sky Mobile operates as a full MVNO (Mobile Virtual Network Operator) within the UK, utilising the O2 radio access network infrastructure.

Asda Mobile is a mobile virtual network operator (MVNO) in the United Kingdom, operated by ASDA on the Vodafone network.

In December 2013, ASDA Mobile switched from using Vodafone to running on the EE network for several years before switching back to Vodafone in March 2021.

Asda Mobile is available in hundreds of stores across the UK and online by purchasing ASDA Mobile Bundles which give you 30 day bundle plans with no fixed contract.