Apple iMac 27" 2015 is a refurbished all-in-one desktop from Buyer Area with Intel Core i5-6500, 32GB RAM, 512GB SSD or 500GB Fusion, from £299, 12-month warranty, free mainland UK delivery and 30-day returns.
Refurbished iMac 27 inch 2015 i5 · From £299
Free mainland UK delivery · Dispatched within 1–2 working days · 30-day returns
Grade C: The casing shows visible scratches, scuffs or small dents — this one has clearly been used, but works like new. On iMac and All-in-One units, there are a few faint screen scratches, only visible when it's switched on.
This is an Apple iMac 27-inch from 2015, a desktop computer built for stationary use. It has an Intel Core i5-6500 processor, 32GB of RAM, 512GB SSD storage, and runs Ventura. This spec handles browsing, email, office work, photo editing and multitasking without strain. It suits home office workers, students and creative professionals who value a larger screen. The 27-inch screen gives you plenty of space for side-by-side windows and detailed work, which makes longer working days more comfortable.
Key specifications
Processor: Intel Core i5-6500
Memory: 32GB
Storage: 512GB SSD / 500GB Fusion
Display: 27 inches
Operating system: macOS Ventura
Condition: Refurbished, Grade C
Best for
Home offices: 27-inch screen provides space for side-by-side documents and video calls
Students: macOS Ventura compatibility with educational apps and side-by-side research
Small businesses: all-in-one design saves desk space and reduces cable clutter
This iMac can be supplied with macOS Ventura installed using OpenCore Legacy Patcher (OCLP), a well-established independent open-source tool that lets older Macs run newer versions of macOS. That means it runs current versions of the many apps that need macOS Ventura or later — such as recent releases of Chrome, Microsoft 365 and Zoom — not just the older versions limited to its original macOS. We install and test it before dispatch. OCLP is not supported by Apple; if you would rather have the last official macOS version for this model, just ask before or after ordering.
At a glance
27-inch iMac from 2015 with Intel Core i5 or i7 processor options
Available with 8GB or 32GB RAM for multitasking flexibility
Storage options: 1TB HDD, 512GB SSD or 500GB Fusion Drive
Running macOS Ventura for continued software compatibility
Grade C and Grade B units available with 12-month warranty
12-month Buyer Area warranty
About this imac
The refurbished Apple iMac 27-inch from 2015 brings together a large Retina 5K display with Intel processing power in Apple's signature all-in-one desktop design. Whether you're running multiple browser tabs, editing photos or managing spreadsheets, the combination of a 27-inch screen and either an Intel Core i5-6500 or Core i7-4790K processor handles everyday computing tasks with room to spare. All units are professionally refurbished, tested and graded, then backed by a 12-month Buyer Area warranty and 30-day returns.
Inside, you'll find a choice of Intel quad-core processors paired with either 8GB or 32GB of RAM, making this used iMac adaptable to light office work or more demanding creative software. Storage configurations vary across the units in stock: a 1TB hard drive offers traditional capacity, a 512GB SSD delivers faster boot and load times, and the 500GB Fusion Drive sits between the two with a hybrid approach. The 27-inch display remains the centrepiece, giving you plenty of screen space for side-by-side documents, photo libraries or video calls without the clutter of a separate monitor and tower. Each unit runs macOS Ventura, keeping you current with modern app compatibility and security updates.
Performance for everyday tasks and creative work
The Intel Core i5-6500 configuration balances power and efficiency for web browsing, email, cloud-based productivity suites and video streaming. Step up to the Core i7-4790K variant with 32GB of RAM and you gain headroom for photo editing in Lightroom, working with larger spreadsheets, or running several applications simultaneously without slowdown. Both processors are quad-core, so even demanding software benefits from the extra threads. Storage speed makes a real difference to daily use: the 512GB SSD option boots macOS in seconds and opens apps instantly, while the 1TB hard drive prioritises capacity for large media libraries at a steadier pace.
Display, connectivity and the all-in-one advantage
The 27-inch screen eliminates cable sprawl and frees up desk space compared to a separate monitor and PC tower. You sit down to a clean workspace with the keyboard and mouse of your choice—both connect easily via Bluetooth or USB. This second hand iMac's built-in design also means fewer plugs and less dust gathering behind multiple boxes. Ports and wireless connectivity details are listed in the specifications table below, so you can confirm compatibility with your existing peripherals and network before you buy.
Which configuration to choose
If your workflow centres on web apps, email and light document editing, the Intel Core i5-6500 with 8GB of RAM and a 1TB hard drive will serve you well. For faster app launches and a snappier feel, look for the 512GB SSD option—you'll notice the difference every time you boot up or open a large file. Creative professionals and power users will appreciate the Core i7-4790K paired with 32GB of RAM, which keeps performance smooth when you're juggling multiple browser tabs, editing high-resolution images or compiling code. The 500GB Fusion Drive offers a middle ground, combining SSD speed for your operating system and frequently used files with hard-drive capacity for everything else.
Who this refurbished Apple iMac suits
This 2015 model remains a practical choice for home offices, small businesses and students who want a large screen and the simplicity of an all-in-one desktop. The 27-inch display makes research and writing easier by showing two documents side by side, while the macOS Ventura operating system keeps you connected to iCloud, the latest Safari browser and a wide range of productivity apps. Because every unit has been tested and graded before dispatch, you know exactly what condition to expect—Grade C units show more visible signs of previous use, while Grade B examples are closer to original condition. Both grades carry the same 12-month warranty and 30-day returns, so your purchase is protected either way.
What’s in the box
1× Refurbished Apple iMac 27-inch 2015
1× Compatible power cable
Full specifications
Product type
iMac
Screen size
27 inches
Year
2015
Processor
Intel Core i5-6500 or Intel Core i7-4790K
Memory
8GB or 32GB RAM
Storage
1TB HDD, 512GB SSD or 500GB Fusion Drive
Operating system
macOS Ventura
Colour
Silver
Form factor
All-in-one desktop
Display
27-inch Retina 5K
Wireless
Wi-Fi, Bluetooth
Suitable for
Home office, small business, students, creative work
Is the refurbished iMac 27 inch 2015 still good in 2026?
Yes, the 2015 iMac remains capable for everyday computing, office tasks and light creative work. It runs macOS Ventura, which keeps you compatible with current apps and security updates. The 27-inch Retina 5K display is still excellent for productivity and media viewing. Configurations with an SSD and 32GB of RAM deliver smooth performance for multitasking, while the Intel Core i5 or i7 processors handle web browsing, document editing and photo management comfortably. For intensive video editing or the latest games you may find newer models more suitable, but for general use this model has several years of life ahead.
Which configuration should I choose for my needs?
For basic office work, email and web browsing, the Intel Core i5-6500 with 8GB of RAM and a 1TB hard drive will meet your needs. If you want faster boot times and snappier app performance, choose a configuration with a 512GB SSD—you'll notice the difference immediately. For creative work such as photo editing or running multiple demanding applications simultaneously, opt for the Core i7-4790K with 32GB of RAM. The 500GB Fusion Drive offers a middle ground between capacity and speed. All configurations include the same 27-inch Retina display and come with a 12-month warranty.
What comes in the box with a used iMac?
Each refurbished Apple iMac 27-inch 2015 ships with the iMac itself and a compatible power cable. You will need your own keyboard and mouse—any USB or Bluetooth keyboard and mouse will work, including Apple's own or third-party models. The iMac has built-in Wi-Fi and Bluetooth, so wireless peripherals pair easily. All units are tested, graded and ready to use straight out of the box with macOS Ventura installed.
What is the difference between Grade B and Grade C?
Grade A is excellent, with very light signs of use. Grade B is good, with light signs of use such as fine scratches. Grade C is fair, with clear signs of use. Every grade is fully tested and working.
What is the warranty and returns policy?
Every unit comes with a 12-month warranty covering faults. It excludes accidental damage and normal wear and tear.
Can I upgrade the RAM or storage later?
The 2015 iMac 27-inch has user-accessible RAM slots, which means memory can be upgraded after purchase if you have technical confidence or access to a technician. Storage upgrades are more complex and require disassembly, so we recommend choosing your preferred storage configuration at the time of purchase. If you need more storage space in future, external drives connect easily via USB and provide a simple way to expand capacity for large files and media libraries.
Is the iMac suitable for students and home learning?
Yes, the 27-inch display is ideal for research, essay writing and online learning because you can view lecture notes and web pages side by side. macOS Ventura supports all major productivity apps, video-calling software and educational platforms. The all-in-one design saves desk space in a bedroom or shared study area, and the built-in webcam and microphone make remote learning straightforward. Configurations with 16GB or 32GB of RAM handle multiple browser tabs and apps simultaneously, which is helpful when switching between assignments, video calls and research.