Carphone Warehouse has announced a collaboration with RootMetrics.
RootMetrics collates data for mobile performance measurement, which will allow Carphone Warehouse to offer customers more accurate information.
It will give customers an idea of how well the four major network operators are performing in their area.
In-store, staff will also use the RootMetrics’ CoverageMap app to assist customers.
The app combines crowd-sourced samples and tests to provide views on UK network performance.
Graham Stapleton, CEO for UK and Ireland at Carphone Warehouse, said: “Customers are becoming increasingly more demanding about the quality of their network.
"In fact, network reliability was cited by 47 per cent of customers as the most important factor when choosing a mobile operator in the recent Enders Analysis UK mobile user survey.”
Bill Moore, CEO and president of RootMetrics, added: “This is an important alliance that plays to both companies’ strengths.
“RootMetrics casts an independent light on the true mobile performance of the UK networks, and, by providing our data directly to Carphone Warehouse customers on the spot, they will be able to make more informed decisions on their mobile provider.“