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Compare Apple iPhone 15 Deals

Compare the latest Apple iPhone 15 deals from 3 UK networks. Filter by data, contract length and upfront cost, and plant trees with every switch.

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About the Apple iPhone 15

The iPhone 15 launched in September 2023 and now sits as one of Apple's better value buys. It does almost everything most people need, with a 6.1-inch OLED screen, a 48MP main camera and USB-C charging. Pay-monthly deals start from £13.00 a month.

Key takeaways

  • 6.1-inch Super Retina XDR OLED screen
  • 48MP main camera plus a 12MP selfie camera
  • 3,877 mAh battery and USB-C charging
  • Comes in 128GB, 256GB and 512GB, with no memory card slot
  • 5G ready and runs iOS 17

Apple iPhone 15 specifications

Display
6.1-inch (1179 x 2556)
Storage
128GB / 256GB / 512GB
Main camera
48MP
Front camera
12MP
Battery
3,877 mAh
5G
Yes
Operating system
iOS 17
Weight
171g
Memory card
No
Released
September 2023

Key features

  • 6.1-inch Super Retina XDR OLED
  • Ceramic Shield Glass
  • Dual 48MP camera
  • 12MP selfie
  • USB-C charging

How to pick your iPhone 15 deal

The real cost comes down to two figures: the monthly price and any upfront fee. A cheap monthly with a big upfront charge can work out dearer overall, so sort by effective monthly cost to compare deals fairly. Pick a data allowance that matches how much you really use, not the biggest one on the list, and choose a contract length you are happy to stick with. As an older model, the iPhone 15 often shows up at gentler prices than the latest releases, which is the main reason to consider it. If your current phone still works, a SIM-only plan paired with a SIM-free handset is often the cheaper route.

Camera and display

The 6.1-inch Super Retina XDR OLED is sharp and bright for everyday browsing, video and photos. The 48MP main camera takes detailed shots in good light and copes well enough in dimmer rooms, and the 12MP front camera handles video calls and selfies fine. Ceramic Shield Glass adds some scratch and drop resistance, which is handy on a phone you may keep for a few years. There is no telephoto zoom lens here, so you crop in rather than optically zoom for distant subjects.

Performance and battery

The iPhone 15 still feels quick for messaging, apps, streaming and most games, though it uses an older chip than Apple's latest models, so it will get fewer years of future iOS updates. That is worth weighing up if you tend to keep a phone for a long time. The 3,877 mAh battery sees most people through a full day, with heavier users likely reaching for a charger by the evening. It charges over USB-C, so you can use the same cable as most newer devices, and it ships with iOS 17.

iPhone 15 vs iPhone 15 Pro

The iPhone 15 Pro adds a telephoto zoom camera, a faster chip and a more premium titanium build. For everyday tasks like browsing, social and photos in good light, the standard 15 keeps up nicely and costs less. The Pro mainly rewards people who shoot a lot of zoomed or low-light photos, or who push their phone hard with demanding apps. Choose the Pro only if you genuinely want that extra camera reach or the higher performance, otherwise the iPhone 15 covers what most people actually do.

How much storage do you need?

128GB is plenty for casual users who keep photos and apps tidy. Step up to 256GB if you take a lot of video or hold downloads offline, and only pick 512GB if you store large libraries on the device. There is no memory card slot, so you cannot add space later. Choose carefully at the start.

Pros

  • Strong value now it is an older model
  • Bright 6.1-inch OLED screen with a capable 48MP camera
  • USB-C charging and Ceramic Shield Glass
  • Light at 171 g and 5G ready

Cons

  • Older chip means fewer years of iOS updates than newer iPhones
  • No telephoto zoom lens, unlike the Pro models
  • No memory card slot to add storage later

Our verdict

The iPhone 15 is a smart pick if you want a capable, lighter-on-the-wallet iPhone and can accept an older chip with a shorter update runway.

Get your Apple iPhone 15 deal in 3 steps

Choose your deal

Select your ideal Apple iPhone 15 from trusted retailers. Filter by data, price and contract length to find your perfect match.

Get your PAC code

Keep your current number by texting 'PAC' to 65075. It's free and takes minutes.

Complete your order

Finish your application with your chosen retailer. Your new Apple iPhone 15 will be delivered and your number transferred automatically.

Eco impact

Our impact grows with you

Every successful switch through Switchity plants 2 trees through our verified reforestation partner, Ecologi. Our switchers have already captured over 5,240 kg of CO₂ and released nearly 26,986 kg of oxygen annually.

262 / 1000 trees26% to goal
Verified reforestation partner: Ecologi
Best Environmentally-Focused Comparison Platform 2026, SME News
2
Trees per switch
5,240+ kg
CO₂ captured
£25,000+
Customer savings

Apple iPhone 15 deals: FAQs

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Our community impact

Every switch through Switchity supports reforestation and saves our community money on their broadband.

262
Trees grown together
£25,000
Saved by community
£250
Typical yearly saving
738
Trees to go to goal
Claudia Constantin
Written by Claudia Constantin, Co-Founder & Managing EditorPublished