Vodafone has announced the launch of 4G+ mobile data coverage in Waterford, and said the service will be rolled out to Cork, Dublin and Limerick cities by the end of the year.

4G+ will deliver data speeds of up to 150mbps, the company claims, and is twice as fast as regular 4G.

Other network operators, including 3 Ireland and Eircom, continue to roll out their 4G networks around the country. Vodafone says its 4G service is now available in six cities and 377 towns here. 4G+ is achieved by combining two 4G bandwidths. 

It is available to customers on the Vodafone RED Super Business and RED Extra Super tariffs, who have one of three Samsung 4G+ enabled smartphones: the Galaxy Note Edge, Galaxy Note 4 and Galaxy Alpha.

Other networks have been rolling out their 4G coverage in recent times as the number of devices that can take advantage of the higher speeds continues to increase.

Vodafone says its 4G network now covers 80% of the country's population.