iPhone 15 in 2026: Still Worth Buying? UK Refurbished Guide

Is the iPhone 15 still worth buying in 2026? Yes, as a refurbished phone it remains a good choice for buyers who want USB-C, Dynamic Island and a 48MP camera, as long as they do not need Apple Intelligence. Apple lists the iPhone 15 as compatible with iOS 27.

Apple released the iPhone 15 in the UK on 22 September 2023. Compared with the iPhone 14, it moved to USB-C and a 48MP main camera. The key thing to understand before you buy is what it does not do: Apple's Apple Intelligence features are limited to the iPhone 15 Pro, iPhone 15 Pro Max and newer models, not the standard iPhone 15 or 15 Plus.

1. Is the iPhone 15 supported in 2026?

Yes. Apple's iOS 27 page lists the iPhone 15 and iPhone 15 Plus among compatible models, so you get current security updates and most new iOS features. Running iOS 27 is not the same as getting every iOS 27 feature, though. Apple's Apple Intelligence support page names iPhone 15 Pro, iPhone 15 Pro Max, iPhone Air and iPhone 16 models or later; the standard iPhone 15 is not on it.

If the newer Siri and Apple Intelligence tools matter to you, read which refurbished iPhones support Apple Intelligence before choosing.

2. Everyday performance: is the A16 Bionic still good?

For messaging, browsing, maps, banking, streaming, social apps and most games, the A16 Bionic is still comfortable. Where it falls behind newer models is in features that depend on newer hardware rather than raw speed. Leave some free storage, as a nearly full phone feels slower regardless of chip.

3. Display and Dynamic Island

The 6.1-inch OLED display runs at 2556 × 1179 pixels and reaches up to 2,000 nits outdoors and 1,600 nits for HDR content. It uses Dynamic Island for alerts and Live Activities instead of the older notch. Apple's spec page does not list ProMotion or Always-On for the iPhone 15; those are features of Pro models and of the iPhone 17. If a large screen is the priority, the iPhone 15 Plus offers the same features on a 6.7-inch display.

4. Cameras

The iPhone 15 has a 48MP main camera with sensor-shift stabilisation and a 12MP ultra-wide. The main sensor also provides a 2x telephoto option, so you get 0.5x, 1x and 2x optical-quality zoom levels and up to 10x digital zoom. Video records in 4K Dolby Vision at up to 60 fps, with Cinematic mode up to 4K HDR at 30 fps. There is no dedicated telephoto lens; if you photograph distant subjects often, a Pro model is a better fit.

5. Battery life and battery health

Apple rates the iPhone 15 at up to 20 hours of video playback and up to 16 hours of streamed video. That is a new-battery figure, and a refurbished unit's endurance depends on its condition.

On iPhone 15 models and later, Settings → Battery → Battery Health displays maximum capacity, cycle count, manufacture date and date of first use (iOS 17.4 or later). Apple says iPhone 15 models and later are designed to retain 80 percent of original capacity at 1,000 complete charge cycles under ideal conditions. Battery health varies by unit; cosmetic grades describe appearance, not battery, so check the information on the listing and on the phone after setup.

6. Storage: is 128GB enough?

The iPhone 15 came in 128GB, 256GB and 512GB. Since the phone does not need space for Apple Intelligence models, 128GB is workable for many people who use iCloud Photos. Choose 256GB if you record a lot of 4K video, keep downloads for travel or plan to use the phone for several more years. Check Settings → General → iPhone Storage on your current phone first.

7. iPhone 15 vs iPhone 14 and iPhone 16

Over the iPhone 14, the iPhone 15 adds USB-C instead of Lightning, a 48MP main camera instead of 12MP, Dynamic Island, the A16 Bionic instead of the A15, and second-generation Ultra Wideband for longer-range Precision Finding with friends in Find My. Rated video playback is the same 20 hours. If budget is tight, our iPhone 14 guide covers that model.

The iPhone 16 adds the A18 chip, Apple Intelligence support, Camera Control, the Action button (the iPhone 15 keeps the Ring/Silent switch), Wi-Fi 7, MagSafe up to 25W and longer rated battery life (22 hours of video playback). If any of those matter, it is worth paying the difference. The iPhone 16e is another alternative and is covered in iPhone 16e vs iPhone 15.

8. USB-C, charging and network compatibility

The iPhone 15 uses USB-C at USB 2 speeds (up to 480Mb/s), with fast charging to 50% in about 30 minutes using a 20W or higher adapter. It supports MagSafe and Qi2 wireless charging up to 15W, and Qi up to 7.5W. It takes a nano-SIM plus eSIM, or two eSIMs, and supports Wi-Fi 6. It is rated IP68 (up to 6 metres for 30 minutes under IEC 60529), though resistance can reduce with wear or repairs. A SIM-free phone is not automatically network unlocked, so check the listing.

9. What to check when your iPhone 15 arrives

1. Confirm model, colour and storage in Settings → General → About.
2. Set up with your own Apple Account and make sure no Activation Lock remains.
3. Check Battery Health, cycle count and Parts and Service History.
4. Test both cameras, Face ID, speakers, microphones and the Ring/Silent switch.
5. Check SIM or eSIM, Wi-Fi and USB-C and wireless charging.
6. Compare cosmetic condition and accessories with the listing.

Tech Market lists each phone with a cosmetic grade (Pristine, Very Good, Good or Acceptable). Qualifying refurbished devices include a 12-month warranty, and delivery is free in the UK.

Frequently asked questions

Is the iPhone 15 still good in 2026?

Yes. It runs iOS 27 and handles everyday apps well. Its main limitation is that it does not support Apple Intelligence.

Does the iPhone 15 have USB-C?

Yes. The whole iPhone 15 range uses USB-C rather than Lightning.

Which colours did the iPhone 15 come in?

Black, Blue, Green, Yellow and Pink.

Does the iPhone 15 have an Action button?

No. The standard iPhone 15 has a Ring/Silent switch. The iPhone 16 and iPhone 16e have an Action button.

Final verdict

A refurbished iPhone 15 is a sensible, modern iPhone in 2026 if you can live without Apple Intelligence. Buy on battery condition, storage and grade, and step up to an iPhone 16 if you want Apple's newer features. See current iPhone listings at Tech Market.

Related buying guides

• iPhone 16 in 2026: Worth Buying? UK Refurbished Guide
• iPhone 16e in 2026: Worth Buying? How It Compares With iPhone 16
• iPhone 16 Pro in 2026: Worth Buying Refurbished? UK Guide

Official sources: iPhone 15 tech specs · Apple Newsroom: iPhone 15 and iPhone 15 Plus · iPhone 14 tech specs · iPhone 16 tech specs · iOS 27 compatibility · Apple Intelligence requirements · iPhone battery and performance.

Reviewed 8 November 2026. Confirm current software, compatibility, product condition and availability before ordering.