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BT Infinity vs Sky fibre broadband

Wednesday, February 25th 2015

They're not only two of the biggest names in UK broadband, but also they both offer super-fast fibre connections. So if you're trying to choose between BT and Sky, what do you need to know?

Our impartial and detailed head-to-head guide reveals who wins when it comes to speed, availability, download limits and more, so you can make a more informed choice between these two broadband heavy hitters.

At a glance

  • Broadband
    Max Download Speed38Mb
    Max Upload Speed9.5Mb
    Monthly UsageUnlimited
    Digital TV
    TV Channels-
    SD Channels-
    HD Channels-
    Home Phone
    Daytime Calls9ppm
    Evening Calls9ppm
    Weekend CallsInclusive
    Pricing & Contract
    Monthly Cost
    -
    £12.50
    Upfront Cost£36.95
    Contract Length12 months
    Line Rental p/m£16.99
    Average Monthly£32.57
    First Year Cost£390.83
    Lifetime Cost£390.83
    See deal →
    or call 0800 380 0064
  • Broadband
    Max Download Speed38Mb
    Max Upload Speed10Mb
    Monthly UsageUnlimited
    Digital TV
    TV Channels-
    SD Channels-
    HD Channels-
    Home Phone
    Daytime Calls7.95ppm
    Evening Calls7.95ppm
    Weekend CallsInclusive
    Pricing & Contract
    Monthly Cost
    (£20 after 6 mths)
    £10
    Upfront Cost£36.95
    Contract Length18 months
    Line Rental p/m£16.40
    Average Monthly£35.12
    First Year Cost£413.75
    Lifetime Cost£632.15
    See deal →
    or call 0800 840 5394

Speed & usage

BT Infinity speed and usage

On paper, BT offers up to 300Mbps connections with their ultrafast Infinity 4 service, but we've yet to find anyone able to receive this top speed. As a result, the fastest optimum speed that we've found from BT that's actually available to a reasonable number of consumers is up to 76Mbps. With these speeds, the provider estimates that you'd be able to download an album in around four seconds, and a feature-length HD movie in around 10 minutes.

Sky fibre speed and usage

Sky’s fibre service can clock in at up to 76Mbps, which is generally the top optimum speed for most fibre packages in the UK (with the exception of those carried on Virgin Media's cable network). If that's a bit too speedy for your tastes, there's a slower and lower priced tier of fibre broadband available from Sky, which has optimum downloads of 38Mbps.

Download speeds76Mb
up to
76Mb
up to
Upload speeds19Mb
up to
19Mb
up to
BT
Download speed
Up to 76Mbps
Upload speed
Up to 19Mbps
Monthly allowance
40GB & Unlimited
Fair usage policy
No
Sky
Download speed
Up to 76Mbps
Upload speed
Up to 19Mbps
Monthly allowance
Unlimited
Fair usage policy
No

Package comparison

BT Infinity packages

There are three BT fibre-optic broadband packages; BT Infinity 1 (up to 38Mbps with 20GB usage cap), Unlimited BT Infinity 1 (up to 38Mbps with unlimited data usage), and Unlimited BT Infinity 2 (up to 76Mbps with unlimited data).

BT also offers packages for its high speeds of 160Mbps and 300Mbps, but these won’t be advertised until a greater proportion of customers on the network can actually access the speeds. Alongside the monthly cost, you’ll also have to take on line rental. Standard BT line rental costs £16.99 each month. BT also offers packages for its high speeds of 160Mbps and 300Mbps, but these won’t be advertised until a greater proportion of customers on the network can actually access the speeds. Alongside the monthly cost, you’ll also have to take on line rental. Standard BT line rental costs £16.99 each month.

Compare BT Infinity broadband

Sky fibre packages

There are two Sky fibre broadband packages, both of which come with totally unlimited downloads; the up to 38Mbps Sky Fibre Unlimited and the up to 76Mbps Sky Fibre Unlimited Pro. Whichever package you go for, you'll pay £16.40 per month line rental.

Compare Sky fibre broadband

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Customer service

BT customer service

Industry watchdog Ofcom last released complete broadband customer satisfaction statistics in December 2013, and found that BT had an average satisfaction rate of 63%, same overall rating as 2012. So there hasn't been a huge change, but it did score lower than average for offering compensation or a goodwill payment.

Sky customer service

In comparison to BT, Sky had an average customer satisfaction rate of 71%. An 8% increase to previous year. Sky scored above average in a number of areas, including the ability of it's advisors to understand an issue and identify the problem. This means that, on the strength of the Ofcom report, Sky are more successful when it comes to keeping customers happy.

Technology and equipment

BT Home Hub router

The BT Home Hub 5 features smart power-saving modes which switch the device to an electricity bill pleasing low energy consumption mode when not being used.

It also searches to find you the least congested Wi-Fi channel so you can get the quietest connection possible where you are. You'll get multiple simultaneous connections, either via Ethernet ports or Wi-Fi. BT also make a point of highlighting how the Home Hub fits through average letterboxes when delivered.

Sky Hub router

The Sky Hub is taller and deeper than the BT alternative, but almost half the width. Like the Home Hub, it also boasts a power-saving mode which reduces the amount of power used when not in use, will automatically scan for the quietest Wi-Fi channel and let you connect either wirelessly or via an Ethernet cable.

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Extra features

BT Infinity has free public wi-fi, BT NetProtect Plus

As a BT broadband customer you’ll get free and unlimited access to public Wi-Fi at 5 million UK hotspots.

When you sign up for BT Infinity, you’ll be able to watch BT Sport online entirely for free. This is a great benefit for sport fans, as you can watch football matches without having to sign up for a subscription TV service. In addition, the BT NetProtect Plus security package is provided free to all unlimited BT Infinity customers, and features anti-virus, firewall and content-blocking controls.

Sky fibre has Cloud hotspots and Broadband Shield security software

All Sky unlimited broadband packages include unlimited access to public wi-fi at Cloud hotspots, but bear in mind that there are currently just 20,000 of these throughout the UK – fewer than the BT alternative. Sky updated their security software in late 2013 to roll out their Broadband Shield package – free for broadband customers. It gives consumers the option of blocking categories of content or alternatively filter sites by age. The limits that are set are then applied to any devices that use the home connection, whether it's a PC, laptop, smartphone or tablet.

So, is there a clear winner?

Not when factoring broadband alone, no. Bring TV into the equation and Sky is light years ahead. Even on just broadband, at first glance, the up to 300Mbps headline speed could make BT an attractive option – but the lack of widespread availability means the majority of consumers won't be able to benefit from these ultrafast connections. This aside, the only thing to really separate BT from Sky is a small difference in price and the presence of 20GB and unlimited options. Keeping things simple, Sky fibre broadband is unlimited, so you can make the most of up to 76Mbps speeds without worrying about data usage. Since it's carried on the BT Openreach network, you should find that if you can get BT Infinity, then you can get Sky fibre too.

And don't forget, Cable.co.uk now produces in-depth broadband reviews of every major UK broadband package, so check them out if you need more information.

Compare BT & Sky fibre broadband→

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