How to compare iPhone 15 deals
Add the upfront cost to every monthly payment for the full term. That total is the only fair way to compare two contracts, because a low monthly price often hides a bigger upfront fee or a longer agreement.
Check whether the handset and airtime are separate agreements, and whether the monthly price rises each April. Networks must show any rise in pounds and pence when you sign up.
Contract, or buy outright and add a SIM?
Compare the contract total with the outright price of the iPhone 15 plus a SIM only plan over the same months. Buying outright is often cheaper over two or three years, and you can change SIM whenever you like.
Contracts and handset finance involve a credit check. CompareDirect is not a credit broker or lender; we list advertised terms and link you to the network to buy.
Networks that quote phone deals individually
These networks do not publish a fixed price for every handset, so we list them as quote destinations rather than priced contracts (checked 27 October 2026).
| Network | What you choose on their site |
|---|---|
| O2 Phone plans and handset finance | Handset, storage, data allowance and finance term |
| Sky Mobile Phone plans and handset finance | Handset, storage, data allowance and finance term |
| Tesco Mobile Phone plans and handset finance | Handset, storage, data allowance and finance term |
| EE Phone plans and handset finance | Handset, storage, data allowance and finance term |
| Three Phone plans and handset finance | Handset, storage, data allowance and finance term |
| iD Mobile Phone plans and handset finance | Handset, storage, data allowance and finance term |
| giffgaff Phone plans and handset finance | Handset, storage, data allowance and finance term |
Prices are advertised rates from each provider's own page on the date we checked, not live quotes. Clicking a name takes you to the provider.
Frequently asked questions
What is the cheapest iPhone 15 deal?
We do not hold a fixed advertised price right now. Ask the networks listed above for a quote and compare the full total.
Is a iPhone 15 contract cheaper than buying outright?
Not usually over a long term. Use our contract cost calculator to compare both routes with the figures you are quoted.
Will my monthly price go up?
Many UK contracts rise each April by a fixed amount shown when you sign up. Check the contract summary before you agree.
Can I keep my number?
Yes. Text PAC to 65075 for free to get your code, then give it to your new network.
Keep comparing
- All iPhone contracts
- Compare all phone contracts
- Contract vs outright cost calculator
- SIM only deals
- How to switch network and keep your number
Listings are dated snapshots of providers' own pages, not live prices, and CompareDirect does not sell the products we list. We are not a credit broker or lender and give no financial advice.
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