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Sky Mobile is a virtual network that piggybacks on O2. Unlike some of the other “virtual” networks, Sky Mobile is also part of a wider group, meaning there’s potential for bundle deals for customers using both Sky television and Sky broadband.
If you’re already a Sky customer, it’s definitely worth checking out your Sky VIP app for deals on the mobile service, as the savings could be substantial, with cheaper tariffs than those listed below.
On a standalone basis, Sky Mobile’s tariffs are middling value. They’re neither the cheapest on the market nor the most expensive. All of its SIM-only tariffs are a minimum of 12 months, so there aren’t any of the pay-as-you-go or rolling monthly deals on offer from many of its rivals.
However, Sky does offer discounts for the first six months on several tariffs, so you have to get the calculator out and compare tariffs over the total cost for the year, rather than looking purely at the monthly fee.
Roaming is also pricey on Sky Mobile with no free roaming on any of its SIM-only deals, so you might want to look elsewhere if you’re a frequent traveller.
We surveyed 1,022 Telegraph readers across the UK* to find out who provided their mobile network and what they thought about the service. Readers provided their verdicts for the three master brands (EE, O2 and VodafoneThree), as well as virtual networks (MVNOs): Tesco Mobile, Lebara, Sky Mobile, BT Mobile and Giffgaff.
We excluded any provider used by fewer than 20 per cent of our readers. In addition, we categorised providers with an average rating of three stars or lower as “below average”.
As well as speed, reliability, value for money and ease of contact, we asked our readers how helpful their providers were once they got through to them, as well as their experiences using data roaming while abroad.
Score: 3.5/5
Our survey revealed most Sky Mobile customers are content with the value they’re receiving, with 77 per cent declaring themselves satisfied.
As I stated earlier, the best deals are on offer to customers who already take other Sky products, as on a standalone basis, they aren’t always great value. For example, Sky’s cheapest tariff is only £5 per month for 100MB of data, but Lebara will offer you 5GB for 50p less per month.
You need to do your sums when comparing Sky tariffs, as it often offers discounts for the first six months of a deal. For example, at the time of writing, it’s offering 40GB for £18 a month and 50GB for £20 a month, but the 50GB tariff is half price for the first six months. That means it’s £36 cheaper over the course of the year to plump for the 50GB contract than it is the 40GB. How confusing.
Sky also offers different discount offers on airtime if you’re buying a phone at the same time, so check the deals carefully if you’re in the market for a new mobile.
Score: 3.5/5
The Sky Mobile customers we surveyed gave the network a 72 per cent satisfaction score when it came to speed. That largely chimes with the experience of other companies that use O2. Giffgaff had a higher speed satisfaction score of 89 per cent, while O2 itself had a score of 73 per cent. Of the three main networks (O2, VodafoneThree and EE), it seems O2 has the most customers satisfied with their speeds.
Score: 4/5
Again, there’s little to worry about when it comes to reliability on Sky Mobile. Overall, 83 per cent of Sky Mobile customers were happy with the reliability, with similar scores for Giffgaff (95 per cent) and O2 (84 per cent).
According to Ofcom’s latest figures, the O2 5G network reaches between 70 and 76 per cent of UK premises outdoors, which is some way behind the coverage offered by EE.
Score: 3.5/5
Sky’s a big business, so you would hope its support is up to scratch, but generally, our survey revealed a few problems here. Seven out of ten Sky Mobile customers said they were happy with the ease with which they could contact the support team, while 73 per cent were happy with the quality of that support.
Those scores are better than those recorded by other big beasts, including BT Mobile, Vodafone and EE. However, they’re significantly down on the scores registered by Tesco Mobile.
Score: 2.5/5
Roaming is something of a sore point for Sky Mobile customers. For many countries, you can use your contracted allowance of data, minutes and texts when travelling, but you must pay £2 a day for the privilege. Many destinations, such as India, Israel and Saudi Arabia are not included in that deal, meaning you must pay a ridiculous £2.16 per MB of data when you’re travelling. You’d be mad to even switch roaming data on in those countries. Opt for a travel SIM instead.
Little wonder Sky Mobile customers don’t rate the roaming value, with only 56 per cent satisfied.
(Note: this is just a sample of the SIM-only deals available from Sky Mobile)
Yes, if:
No, if:
The Research Method
*Online survey of adult Telegraph readers conducted on The Telegraph Contributors Panel, 27th November - 11th December 2025, conducted by Strat7 Researchbods. Survey sample: 1,022 total respondents. Respondents consisted of:
Providers with fewer than 40 respondents were excluded from the individual analysis as their sample sizes were not significant.
Respondents rated their mobile network providers across 13 key attributes using a 10-point scale. These individual ratings were then aggregated to produce an overall performance score based on our proprietary benchmark.
The key attributes evaluated were:
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