Best SIM and broadband bundles in 2025
Looking to save money and simplify your monthly bills? With the right bundle, you can combine your broadband and mobile SIM into one easy plan – and unlock perks like cheaper bills, data boosts, and exclusive rewards.
Use our expert guide to find the best broadband and mobile deals in 2025.
What are broadband and mobile bundles?
Several broadband providers also offer mobile SIM deals as part of a bundle. By signing up to these services together, you could make use of special incentives such as gift vouchers, boosted data, or more generous call allowances.
Signing up to multiple services under one bill also saves time on admin.
Genie Tip: Before clicking 'get deal', make sure the bundle is right for you – getting out of a contract you’re not using fully can be tricky.
Who offers broadband and mobile deals?
Popular UK providers that offer broadband and mobile bundles include:
- BT – Unlimited mobile SIM with No Limits for BT Halo customers
- Sky – Discounted SIM data for Sky Broadband customers
- Virgin Media – Boosted mobile data and broadband speeds via Virgin Volt and Combo bundles
- Vodafone – Save up to £4 per month on broadband with Vodafone Together (when you have a Pay Monthly mobile)
Exclusives: Some bundles offer priority service, free roaming, or bill credits. Check what extras apply before you commit.
Is it cheaper to bundle?
Usually, yes – but not always. Let’s compare:
Example: Virgin Media Bigger Movies Combo & 30GB O2 SIM
- Bundle cost: £54.99/month
- Setup cost: £0
- Standalone cost: £44.99 (broadband) + £14 (SIM) = £58.99
- Savings: £4/month
Genie Tip: Always compare against standalone SIM options like GiffGaff – pairing one with a broadband-only deal could work out cheaper.
Best broadband deals with mobile SIMs
Here’s a round-up of Broadband Genie’s popular broadband and mobile bundles.
Virgin Media M250 Fibre Broadband & 4GB O2 SIM
- Good value for money at under £30 per month
- 4GB may be limiting for remote workers
Virgin Media M250 Fibre Broadband & Unlimited O2 SIM
- Unlimited data + free EU roaming (up to 25GB)
- Up to £6/month rise near contract end
Virgin Media M250 Fibre Broadband + Flex TV & O2 SIM
- Flexible TV package, broadband, and mobile – all-in-one
- Not ideal if you won’t use all services
What makes a good broadband and mobile deal?
Ask yourself:
What broadband speed do you need?
- 30–80Mb – Is suitable for small homes, browsing and streaming
- 100Mb+ (Ultrafast broadband) – Faster speeds are best for larger households or remote working
Read our guide: 'The ultimate guide to broadband speed'.
Will your mobile data allowance be enough?
How do you use your mobile phone? Are you often able to connect to Wi-Fi? Or are you regularly working on the move? Using data beyond your tariff can end up being expensive, and you’ll revert to a Pay As You Go plan for any extra.
Is the price reasonable?
Factor in contract length, any mid-contract price rises, and upfront fees.
Would it be cheaper to buy broadband and SIM separately?
Compare the effective monthly cost including extras like gift cards or free months.
The downsides of mobile phone and broadband bundles
- Less flexibility. You're tied to one provider and may miss other offers.
- No handset included. SIM-only deals won’t provide a phone, but refurbished options are available from sites like Backmarket.
- Limited provider options. Not every broadband provider offers mobile options.
- Existing contracts. You’ll need to check you’re out of your current mobile deal as well as broadband plan to avoid exit fees.
How to switch and save
1. Research the deals available
Broadband Genie lists some bundle deals, but you might find more mobile options as add-ons during checkout.
2. Match the speed to your home
- 30–80Mb Superfast Broadband: Good for 1–3 users
- 100Mb+ Full Fibre Broadband: Better for large homes and remote work
For more help to understand average speeds, you can read our ‘ultimate guide to broadband speed’.
3. Check the contract length
Most bundles come with a 24-month contract. Want a more flexible monthly plan? Search for shorter contracts or rolling-monthly deals on Broadband Genie:
4. Be aware of hidden fees
Set-up fees and price rises can all add up on top of the initial monthly price. Look for broadband packages with gift cards or rewards for new customers to offset the cost.
5. Check mobile coverage
Use the nPerf coverage map to check 3G, 4G and 5G mobile network coverage for EE, O2, Three, and Vodafone.
6. Still in contract?
- Make sure you’ve completed your minimum term before switching to avoid early exit fees.
- Read broadband provider reviews before you switch.
- Use our postcode checker to find local deals.
FAQs
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Can I get broadband and mobile in one package?
Yes – some providers offer broadband bundles with SIM cards or mobile data plans.
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Who offers the best broadband and mobile deals?
BT, Virgin Media, Vodafone, and Sky offer some of the most popular bundles, but it depends on where you live.
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Do I need a credit check for bundled deals?
Usually yes, but there are some no-credit broadband deals available.
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Are broadband and phone deals cheaper than buying separately?
Often – but always compare, especially if you're a light mobile user.
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Can I add a mobile to my broadband later?
Yes – some providers let you add a mobile plan after signing up for broadband.
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Can you keep your mobile number when you switch to a broadband and mobile phone package?
Yes. This should be easy. You will need your Port Authorisation Code (PAC). You can get this fuss-free from your current provider by texting 65075. This will be valid for 30 days to enable you to transfer it to your new service.
Why use Broadband Genie?
- Over 1 million UK households use Broadband Genie to switch broadband
- 30+ providers reviewed – real user ratings and expert advice
- Over 20 years helping UK households save on home broadband and bundle offers
