Best student mobile deals in 2026: SIM-only, contracts and handsets

Feel like you need a degree in abstract algebra to understand the mobile deals out there? Want a new mobile with a student discount? Ofc!

Sorting your mobile deal as a student comes down to three questions: do you need a new phone, how much data do you use, and how long are you willing to commit for? Get those right, and you can cut your monthly bill right down.

We’ll help you figure out what types of student mobile phone deals are available and which might be right for you.

Student mobile deals at a glance

Deal type	Best for	Price	Contract	Notes
Lebara SIM-only	Cheapest confirmed UNiDAYS deal	£1.49/month (5GB or £2.49/month (30GB)	30-day rolling	Half price for first 3 months via UNiDAYS; free calls to 41 countries
O2 10GB	Light users	£7/month	30-day or 12 months	Same price on rolling or 12-month
iD Mobile SIM-only	Flexible data, no price hikes	£7/month	1, 12, or 24 months	25GB for £7/month; data rollover; roaming in 50 countries
O2 50GB	Mid-range data	£8/month	30-day or 12 months	+£15 voucher on 30-day plan via UNiDAYS
SMARTY 50GB	Flexibility + data credit	£8/month (50GB)	30-day rolling	Unused data credited back each month
Vodafone 70GB	Best value mid-range	£9/month	Varies	Boosted deal on UNiDAYS
VOXI 80GB	Big data and first month free	£10/month	30-day rolling	First month free on all VOXI plans via UNiDAYS
Three 120GB	Heavy users	£12/month	24 months	Better value than unlimited if you don’t need it
Three Unlimited	True unlimited	£22/month	24 months	Best for tethering or constant streaming
iD Mobile handset + SIM	New phone on a plan	Varies	24 months	£20 off upfront; £25 off iPhone 18 Pro/Pro Max
VOXI handset	iPhone or Pixel on a plan	From £23.90/month	Varies	iPhone 18 Pro from £36/month; first SIM month free
Refurbished handset	Lower upfront cost	From around £100	N/A	£20 off via UNiDAYS (Reboxed)

What types of student mobile deals are there?

There are three different types of student mobile phone deals you can bag:

1. Handset only

Already got a SIM and happy with the deal you’re on? You can buy a new handset or save money with a refurbished or second hand one.

Refurbished phones have been - well, refurbished - by the manufacturer or the retailer. They’re less likely to break down than a second hand one and the battery might be in better shape. Check out Reboxed’s special £10 discount on refurbished phones over £350 for UNiDAYS members.

2. Contract deals

With a contract, the mobile network wants you to - horror of horrors - COMMIT! They’re willing to make it worth your while though.

You’ll get free minutes, data, texts, and more each for a fixed price every month. Go over your inclusive minutes and you pay extra charges, so matching the tariff to how you actually use your phone is important.

There are two types of contract deals - one with and one without a phone.

SIM-only contracts

You can choose a SIM-only contract if you have an existing handset you’re happy with.

Check out the iD Mobile student discounts at UNiDAYS. You can get SIM-only deals from just £6/month, with 25GB of data available for £7/month and your first three months are £3.50. iD Mobile also offers data rollover, roaming in 50 destinations, and no annual price hikes on SIM-only plans.

VOXI is worth a serious look too. All plans come with your first month free via UNiDAYS. That’s 80GB for £10/month, 125GB for £12/month, 200GB for £15/month, or 500GB for £20/month, all on 30-day rolling contracts. If you want a large data allowance without committing long-term, VOXI is currently one of the strongest options.

Vodafone is offering 70GB for £9/month via UNiDAYS. It’s a solid mid-range option that undercuts Three’s 120GB plan on price while covering most students’ usage comfortably.

The mobiles.co.uk student discount from UNiDAYS can get you unlimited data and £92 cashback, amongst other offers.

There are also competitive budget options worth checking directly. SMARTY, running on Three’s network, offers rolling 30-day plans from £8/month with the added benefit that unused data is credited back to your next bill. O2’s 50GB SIMO plan is also available on UNiDAYS for £8/month with a £15 voucher included.

For the lowest monthly cost, Lebara has 30GB reduced to £2.49/month via UNiDAYS, with half price on all SIM-only packages for the first three months. No credit check, 30-day rolling, and free calls to 41 countries included.

Many student SIM deals, like the ID Mobile deal, are on rolling 30-day contracts. You can quit with just a month’s notice. You’ll get better deals if you commit for longer but, if you try to leave a fixed-term contract early, expect an early exit fee.

Handset + SIM contracts

Want to start with a clean slate? A new phone and a new tariff? Check out the deals available on handset + SIM card contracts. You can choose a brand new phone, or to save a bit of cash, many networks and retailers offer cheaper deals on refurbished mobiles.

iD Mobile currently offers £20 off the upfront cost of handsets via UNiDAYS, plus £25 off selected iPhone 18 Pro and Pro Max contracts. VOXI has the iPhone 18 Pro from £23.90/month with the first SIM month free.

The bill you pay every month covers your airtime and pays down the mobile handset itself. The amount leaving your bank account every month on a handset + SIM contract is higher than a SIM only contract. That’s not forever though. Once the minimum contract ends, the phone is paid off, and you only pay airtime charges.

Handset + SIM contracts are typically 24 months. 12-month deals are available, but your monthly bill will be higher because you’re paying off your handset faster.

Do I qualify for contract student mobile deals?

Anyone over 18 can get a mobile deal; all you need is proof of identity, a UK address, and a UK bank account. If you don’t have a credit history yet, some networks may decline or offer a less competitive tariff. SIM-only deals from budget networks like SMARTY and Lebara don’t require a credit check. These might be worth a look if you’re just starting out.

3. Pay-as-you-go deals

Pay-as-you-go has moved on a lot since the top-up voucher days. Modern PAYG is essentially a rolling monthly plan with no long-term commitment.

How modern PAYG works

With a bundled top-up, you pay a set amount every month for calls, texts, and data. The network collects the same amount from your bank until you tell them to stop.

Think of it as a 30-day SIM-only rolling contract. You cancel with 30 days’ notice. Your data expires monthly and tops up automatically. If you run out mid-month, you can buy a top-up to tide you over.

To handset or not to handset?

Just like with standard contracts, you can take up a PAYG deal with or without a handset. If you get the SIM card only, there’s often no upfront charge except for your first month bundle. If you choose a phone, expect to pay more upfront than with a standard contract deal.

Best student mobile deal for your situation

• Best for the lowest monthly cost: Lebara’s 30GB plan at £2.49/month via UNiDAYS. Half price for the first three months, no credit check, and no contract. If you barely use data, the 5GB plan is £1.49/month.
• Best for international calls: Lebara includes free calls to 41 countries with every package, making it the standout pick for international students staying in touch with home.
• Best for big data with first month free: VOXI. All plans come with the first month free via UNiDAYS, from 80GB at £10/month to 500GB at £20/month. Rolling monthly so no long-term commitment.
• Best mid-range value: Vodafone’s 70GB for £9/month. More data than the O2 50GB plans at only £1 more per month.
• Best for flexibility with data rollover: SMARTY’s 50GB for £8/month. Unused data credits back to your next bill, which is useful if your usage varies between term time and holidays.
• Best for unlimited data: Three’s unlimited SIM for £22/month on a 24-month contract. If you tether your laptop to your phone or stream constantly, it’s the only plan that genuinely covers it.
• Best for a new phone on a plan: iD Mobile for £20 off the upfront cost of handsets, or VOXI for the iPhone 18 Pro from £36/month with the first SIM month free.

Finding the right mobile student discount deal

Many networks and retailers offer student discounts on SIM only and handset + SIM deals for both contract and PAYG options.

To find the best deal, first check your average monthly data usage in your phone’s settings. Most people are surprised by how little they actually use. Then, match your usage to a tariff rather than defaulting to unlimited.

If you want a phone too, compare the total cost over 24 months. Add the upfront handset cost plus the monthly tariff for each option. Whichever is lowest overall is the most cost-effective, and it’s not necessarily the one with the lowest monthly headline price.

Let the network or retailer know you’re a student to see if they can offer you an even better deal. And always check UNiDAYS’ mobile offers before you commit anywhere. Deals change regularly and the mobile category has some of the strongest current offers on the platform.

Want to keep your number? You can - check out this handy guide to “porting”.

Don’t forget to call home regularly!

The best phone deal is the one you’re actually on

Your phone bill is one of the easier monthly costs to cut, and the deals above mean there’s no reason to be paying full price.

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