Vodafone launches its 4G network in London on 29 August, before rolling the service out to 12 other UK cities by the end of the year.
The British Telco says it has invested £900m in 4G. By the end of the year it expects to have introduced the service in Birmingham, Bradford, Coventry, Edinburgh, Glasgow, Leeds, Leicester, Liverpool, Manchester, Newcastle, Nottingham and Sheffield.
Vodafone says it should reach 98% indoor coverage with 4G across the UK by the end of 2015.
Telefonica-owned O2 also announced recently that it would launch 4G in London at the end of August.
EE has until now been the only UK operator to launch 4G.
And rival telco 3 has said it will launch 4G later this year.