Apple iMac 21.5" 2015 is a refurbished all-in-one desktop from Buyer Area with Intel Core i5-5250U, Intel Core i5-5575R, Intel Core i7-5775R or Intel Core i7-4771, 8GB or 16GB RAM, 1TB HDD, 2TB HDD, 1TB SSD, 1TB Fusion or 256GB SSD, from £150, 12-month warranty, free mainland UK delivery and 30-day returns.
Refurbished iMac 21.5 2015 i7 · From £150
Free mainland UK delivery · Dispatched within 1–2 working days · 30-day returns
Grade A: This is our best cosmetic grade — the casing is close to mint condition, with at most tiny micro-marks. On iMac and All-in-One units, the screen is scratch-free.
Grade B: The casing has light scratches or scuffs — visible if you look closely, not something that jumps out. On iMac and All-in-One units, the screen is scratch-free.
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 21.5-inch from 2015, a desktop computer built for everyday computing. It has an Intel Core i5-5250U processor, 8GB of RAM and a 1TB hard drive, running Ventura. This spec handles browsing, email, office documents and photo viewing without strain. It suits home users, students and office workers who want a screen-based workstation that stays in one place. The 21.5-inch screen gives you plenty of space to work comfortably at a desk, making it straightforward to read text and see multiple windows side by side.
Home offices: compact all-in-one design saves desk space
Students: built-in webcam and microphone for remote lectures
Families: simple setup, runs macOS Ventura out of the box
Small businesses: i7 models handle multitasking and office apps smoothly
Upgraded to macOS Ventura
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
21.5-inch all-in-one desktop with Intel Core i5 or i7 processors
8GB or 16GB RAM, storage from 256GB SSD to 2TB HDD
Runs macOS Ventura, ready for everyday computing
Available in Grade A, B and C – professionally refurbished
12-month warranty, 30-day returns, free tracked mainland UK delivery
12-month Buyer Area warranty
About this imac
The refurbished Apple iMac 21.5-inch from 2015 delivers a compact all-in-one desktop experience for home offices, students and families. This used iMac combines Apple's signature design with practical performance: a 21.5-inch display, Intel Core processors from the i5-5250U through to the i7-5775R, and a choice of storage from traditional hard drives through to fast SSD options. Running macOS Ventura, it handles web browsing, productivity apps, media streaming and light creative work without the desk clutter of a separate tower. Every refurbished iMac at Buyer Area has been tested and graded, and ships with a 12-month warranty and 30-day returns.
Under the aluminium enclosure you'll find configurations to suit different workloads. The entry-level Intel Core i5-5250U with 8GB RAM and a 1TB hard drive covers everyday tasks – email, Microsoft Office, video calls and web research. Step up to the quad-core i7-4771 or i7-5775R with 16GB of RAM and you gain headroom for multitasking, large spreadsheets and photo editing in apps like iPhoto or Lightroom. Storage spans 1TB HDD, 1TB Fusion Drive (a hybrid of SSD and HDD for faster boot times) and pure SSD options up to 1TB for the quickest file access. The 21.5-inch screen is clear and bright, ideal for documents and streaming, and the integrated speakers, webcam and microphone mean you're ready for Zoom or Teams calls straight out of the box.
Configurations and grades in stock
We currently stock this refurbished Apple iMac 21.5 inch 2015 in fourteen configurations. Processor choices include the Intel Core i5-5250U, i5-5575R, i7-4771 and i7-5775R. Memory options are 8GB or 16GB, and storage runs from 256GB SSD through 1TB HDD, 1TB Fusion Drive and 2TB HDD to 1TB SSD. All units are finished in silver. Condition grades range from C (light cosmetic signs of use, fully functional) through B (good cosmetic condition) to A (excellent cosmetic condition). Every grade carries the same 12-month warranty and has passed the same functional tests, so you can choose the balance of condition and budget that suits you.
Performance for everyday use
The 2015 iMac handles the workloads most households and small offices demand. Web browsing is smooth across multiple tabs, Microsoft 365 and Google Workspace apps run without lag, and streaming video from iPlayer, Netflix or YouTube is crisp on the 21.5-inch display. The i5 models suit general computing – word processing, spreadsheets, email and casual photo management. The i7 configurations with 16GB RAM are noticeably faster when you're editing large image libraries, running virtual meetings while working in several apps, or compiling reports with embedded charts and data. SSD and Fusion Drive models boot macOS Ventura in seconds and launch apps almost instantly; HDD models are slower to start but still perfectly usable once running, and offer more storage capacity for the same price point.
Who this second hand iMac suits
This refurbished iMac UK model fits neatly into home offices where desk space is at a premium: no tower to house, no tangle of cables, just one power lead and an Ethernet cable if you prefer wired networking. Students benefit from the macOS ecosystem – iWork apps are free, and the webcam and microphone are built in for remote lectures and group projects. Families appreciate the simplicity: it's ready to use out of the box, with no separate keyboard, mouse or monitor to source (though you will need to provide your own if the unit does not ship with them – check the configuration). Small businesses running appointment systems, invoicing software or point-of-sale apps on macOS will find the i7 models particularly capable. It's not designed for 4K video editing, intensive 3D rendering or gaming, but for the vast majority of office and home tasks it remains a capable, elegant machine more than a decade after launch.
What’s in the box
1× Refurbished Apple iMac 21.5" (2015)
1× Compatible power cable
Description
The iMac 21.5" 2015 is an all-in-one desktop computer with a 21.5-inch LED-backlit IPS display at 1920 by 1080 resolution. It includes four USB 3 ports, two Thunderbolt 2 ports, Gigabit Ethernet, 802.11ac Wi-Fi, Bluetooth 4.0, and a FaceTime HD camera. It supports external displays up to 3840 by 2160 pixels.
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.
1.6GHz dual-core Intel Core i5 (Turbo Boost up to 2.7GHz) or 2.8GHz quad-core Intel Core i5 (Turbo Boost up to 3.3GHz)
Display
21.5-inch LED-backlit IPS display, 1920 by 1080 resolution
Camera
FaceTime HD camera
Connections
3.5mm headphone jack, SDXC card slot, four USB 3 ports (compatible with USB 2), two Thunderbolt 2 ports, Mini DisplayPort output, Gigabit Ethernet (RJ-45 connector), Kensington lock slot. Supports HDMI, DVI, VGA, and dual-link DVI via adapters.
Wireless
802.11ac Wi-Fi (IEEE 802.11a/b/g/n compatible), Bluetooth 4.0
External displays
up to 3840 by 2160 pixels on an external display
Operating system
Upgraded to macOS Ventura (OpenCore Legacy Patcher; see Description)
This iMac has been refurbished in-house by Buyer Area, operating since 2011. It has been factory reset with all user data permanently removed. Hardware testing covered ports, RAM, storage, Wi-Fi and Bluetooth.
What cosmetic condition is it in?
Each grade describes cosmetic appearance only; every unit is fully tested and working. Grade A: This is our best cosmetic grade — the casing is close to mint condition, with at most tiny micro-marks. On iMac and All-in-One units, the screen is scratch-free. Grade B: The casing has light scratches or scuffs — visible if you look closely, not something that jumps out. On iMac and All-in-One units, the screen is scratch-free. 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 configuration runs a dual-core Intel Core i5 at 1.6GHz, reaching 2.7GHz with Turbo Boost. With 8GB RAM and 1TB storage, it handles everyday computing tasks including web, email, office work and media tasks.
How does delivery work?
Delivery is free to mainland UK addresses. Orders are dispatched within 1–2 working days. Orders of £99 or more are sent by tracked DPD; smaller orders are sent by Royal Mail.
Every refurbished iMac from Buyer Area is professionally refurbished, tested and graded. You receive a 12-month warranty, 30-day returns with a full refund, and free tracked mainland UK delivery by DPD.
Buyer Area has traded since 2011, supplying refurbished electronics to homes, schools and businesses across the UK. We are registered with Companies House under number 07830466.
Choosing refurbished reduces electronic waste and extends the working life of quality hardware – a practical step toward more sustainable computing.