Is it cheaper to buy a phone outright or on contract?

If you’re upgrading your phone, you’ve got two options: buy the handset outright and add a SIM or take it on a contract that bundles both together. The instinct for a lot of people is to go outright where you own the phone, you’re not tied in, and it feels like the more straightforward option. But when you run the numbers, a contract often works out cheaper over two years. Here’s how it actually works.

How contract pricing works

When you take a phone on contract, the network isn’t just giving you a handset, instead they’re spreading the cost of it across your monthly payments, bundled together with your calls, texts and data. Because networks buy handsets in bulk and have relationships with manufacturers, they can often price that bundle below what you’d pay buying the phone retail and adding a SIM separately.

People usually think contracts are a way to overcharge customers who are not wanting to buy a phone upfront, however contract bundles are genuinely priced to compete with the outright route. And because you’re not paying the full retail price upfront, you’re keeping more cash in your pocket on day one.

The numbers: contract vs outright + SIM

MoneyHQ calculates the true cost of every phone deal including upfront fee plus every monthly payment over the contract length, with any stated price rises included. Cashback is never deducted. Here’s how the cheapest current unlimited contracts compare to buying each phone outright and adding a SIM:

On all phones above, contract wins, sometimes by a significant margin.

The Galaxy S26 Ultra is the standout: you save £636.80 over two years compared to buying it SIM-free.

On the iPhone 18 Pro the gap is smaller at £212.80.

This assumes you buy it directly then a SIM at MoneyHQ for just £14 per month, you may be able to get it cheaper if a phone is on sale, however the savings in this case are significant.

See live contract deals on MoneyHQ →

When does buying outright make sense?

Contract isn’t always the right call. There are situations where buying outright and adding a SIM is the better move:

You already own a phone you’re happy with

If your current handset is doing the job, a SIM only deal is significantly cheaper than any contract as you’re not paying for a handset you don’t need, and monthly costs drop sharply.

You want flexibility

Contracts tie you in for 24 months. If your situation might change like you travel a lot, you switch networks for better coverage, or you want to upgrade early then owning your phone outright gives you the freedom to move whenever you like.

The contract saving is small

On some premium iPhones the gap between contract and outright is under £100 over two years on smaller data plans. That’s less than £5 a month which may not be enough to lock yourself into a 24-month commitment if flexibility matters to you.

What to check before signing a contract

Not all contracts are equal. Before you commit to 24 months, there are a few things worth checking:

Price rises

Most of the big networks apply an annual price rise which is typically linked to a few pounds a month extra each year. This increases your monthly cost for the remainder of the deal and is included in MoneyHQ’s true cost figures.

Some smaller networks, including iD Mobile and Rewild, offer fixed-price SIM only plans with no mid-contract rises. If price certainty matters to you, those are worth looking at.

→ Compare SIM only deals

Data allowance

Contract data allowances vary widely at the same monthly price. Make sure the deal you’re comparing includes enough data for how you actually use your phone as upgrading mid-contract typically isn’t possible without paying more.

The bottom line

For most people upgrading to a new handset, a contract works out cheaper than buying outright and adding a SIM, sometimes the savings can be significant. The saving is biggest on Samsung flagships and Apple handsets.

If you already own a phone, SIM only is almost always the better value option. And if you’re out of contract right now, you’re likely overpaying, and switching to a cheap SIM only deal while you decide on your next handset is an easy way to cut your monthly bill immediately.