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Best and worst mobile phone networks of 2018 revealed by Which?

EE, O2, Three and Vodafone get eclipsed by their smaller rivals

Vodafone has been rated the worst mobile phone provider in Which?’s annual mobile customer satisfaction survey for the seventh year running, while smaller providers impressed customers on service and value for money.

Our survey of 3,683 members of the public found that the UK’s biggest providers – Vodafone, EE, O2 and Three – ranged from average to disappointing according to their customers, despite supplying an overwhelming majority of the market.

Which? has repeatedly seen the smaller networks that use EE, O2, Three and Vodafone’s infrastructure (mobile virtual network operators, or MVNOs) beat the big four providers when it comes to customer satisfaction.

Head to our list of best mobile networks to see how each mobile provider stacked up.

woman angry with phone

The worst mobile networks

Vodafone had the worst overall customer satisfaction score in our survey, with one in six customers telling Which? they would not recommend it to a friend or family member. One in seven Vodafone customers said they had received an unexpectedly expensive or incorrect bill, and the network was also rated worst for customer service.

EE finished second from bottom, having shared the lowest ranking with Vodafone last year. One in seven of the EE customers surveyed pay over £50 a month for their contract, so we weren’t surprised the network received a low score for value for money. Nearly one in five EE customers told us they find their monthly bill too expensive.

O2 outperformed Vodafone and EE, but was still a long way behind the most highly rated providers. Customers’ top complaint was receiving unwanted and annoying marketing communications. Not all customers were put off though, as over half appreciated the incentives and rewards offered by O2, such as its free priority service.

The highest ranked of the big four providers, Three, scored well for value for money with 71% saying it was good or excellent. But 30% of customers said they had experienced very poor signal, and a third of those who had left Three in the past two years had done so to seek better network coverage from another provider. However, 86% of customers would still recommend Three to a friend or family member.

Of course, customer service and value for money won’t be much comfort if its impossible to make calls or get online on your new phone. Check the network coverage where you live using our mobile phone coverage map.

The best mobile phone providers

Utility Warehouse topped the table this year, beating its rival Giffgaff for the first time. Nine in ten of the Utility Warehouse customers surveyed said they would recommend their provider to a friend. Eight in ten of its customers rated its value for money as good or excellent, too.

Alex Neill, Which? Managing Director of Home Products and Services, said:

‘The biggest providers are lagging behind smaller rivals who are doing a better job of giving customers what they want in terms of service and value for money. Customers who are fed up should look to switch provider as soon as they can.

‘New reforms will soon mean that mobile customers will be able to switch provider by text message, which we hope will make it quicker and easier for customers to seek a better deal.’

Read our mobile phone provider reviews to find out who earned our Which? Recommended Provider accolade.

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