APPLE iMac 4K 21.5" (2017)

Product code: 210010

Product features

  • macOS
  • Intel® Core™ i5 processor
  • RAM: 8 GB / Storage: 1 TB Fusion Drive
  • Graphics: AMD Radeon Pro 560
  • With built-in WiFi

With expert service from

  • Monthly protection of your APPLE iMac 4K 21.5" (2017) for only £8.99 More info

Product features

  • macOS
  • Intel® Core™ i5 processor
  • RAM: 8 GB / Storage: 1 TB Fusion Drive
  • Graphics: AMD Radeon Pro 560
  • With built-in WiFi

With expert service from

  • Monthly protection of your APPLE iMac 4K 21.5" (2017) for only £8.99 More info
Product information
Top features:

- Retinal display in 4K supports an exceptional 1 billion colours

- Responsive computing thanks to the Intel® Core™ i5 processor

- Space-saving design of just 5mm for an impressive look

- Magic Mouse 2 and Keyboard help you to work quickly and intuitively

Retina display

Experience the faster processor, powerful graphics and stunning 4K Retina display of the updated Apple iMac 4K 21.5” (2017).

The exceptional 4096 x 2304 resolution supports 1 billion colours and 500 nits for a bright, vivid and beautiful display.

Responsive computing

From working on presentations to simply enjoying films and browsing the web, you can expect a flawless performance thanks to the powerful 3.4 GHz quad-core Intel® Core™ i5 processor.

Multitasking and demanding processes are aided by 8 GB of RAM, which makes for smooth computing regardless of how many software windows or tabs you're working on.

Space-saving design

With a slim 5mm design, and built from Apple's signature aluminium alloy, the iMac 4K 21.5” occupies minimal space and looks impressive the office, studio, or home.

The design isn't entirely form over function either, as the LED panel now sits flusher with the glass screen for improved clarity and reduced reflections.

Magic Mouse 2 & Keyboard

Included is the latest Magic Keyboard and Magic Mouse 2, which has redesigned runners and still lets you gesture anywhere on the trackpad to move between pages, scroll and more.

Both are rechargeable via Apple's Lightning cable, so you'll never have to fumble around looking for batteries again. Just pop the cable in to charge - it only takes 2 minutes to add enough charge for 9 hours of use. Charge for longer to get around a month's worth of working.

Ultrabook, Celeron, Celeron Inside, Core Inside, Intel, Intel Logo, Intel Atom, Intel Atom Inside, Intel Core, Intel Inside, Intel Inside Logo, Intel vPro, Itanium, Itanium Inside, Pentium, Pentium Inside, vPro Inside, Xeon, and Xeon Inside are trademarks of Intel Corporation in the U.S. and/or other countries.

Technical specifications for APPLE iMac 4K 21.5" (2017)

Type iMac 4K
Operating system macOS Sierra
Processor - Intel® Core™ i5 processor
- Quad-core
- 3.4 GHz / 3.8 GHz (Turbo Boost)
Graphics card AMD Radeon Pro 560 (4 GB VRAM)
Storage 1 TB HDD, Fusion drive
Touchscreen No
Screen size 21.5"
Screen type LED
Resolution 4096 x 2304
Screen features LED backlighting
WiFi 802.11 ac
Ethernet Gigabit Ethernet (10/100/1000)
Bluetooth Bluetooth 4.2
USB USB 3.0 x 4
Video connections Thunderbolt 3 x 2
Audio connections 3.5 mm jack
Disc drive No
Memory card reader SDXC card reader
Speakers Stereo speakers
Camera FaceTime HD camera
Mouse / trackpad Apple Magic Mouse 2
Keyboard Apple Magic Keyboard
Security features Kensington security lock slot
Colour Aluminium
Box contents - Apple iMac 4K 21.5" (2017)
- Magic keyboard
- Magic mouse 2
- Power lead
- Lightning to USB cable
Dimensions 450 x 528 x 175 mm (H x W x D)
Weight 5.66 kg
Manufacturer’s guarantee 1 year
Customer reviews

iMac 4K 21.5" (2015) reviews verified by reevooReevoo

280 reviews

Reviews from:Sort by:
(9.1 out of 10)
Build quality
Value for money
Overall rating
Scores 9.1 out of 10 based on 280 reviews
Show more score details
(10 out of 10)

Confirmed purchaser

HD Retina display wireless keyboard and mouse, boot time and fusion drive.
Can’t upgrade RAM or HD but that is the trend nowadays.

iMac 2017

Confirmed purchase: 15 June 2019
Published on: 14 July 2019
(10 out of 10)


Galashiels GB General user
Very reliable system, MacOS is a lot faster than windows.
Love the compact design of the whole system.
As per usual with Apple, price is a wee bit steep but overall still worth it.
Confirmed purchase: 14 February 2019
Published on: 18 March 2019
(10 out of 10)


Bournemouth GB Design or photo editing
Overall Really good!!!
Confirmed purchase: 10 January 2019
Published on: 11 February 2019
(10 out of 10)


GB General user
Design fantastic as would expect from apple. Slick operating system, clear graphics
Value for money - but as expected from apple
Confirmed purchase: 10 January 2019
Published on: 10 February 2019
(10 out of 10)


Eastbourne GB General user
It is an Apple device so it integrates well with my other apple devices.
Probably due for a style upgrade as it is almost identical to my old 2012 model
Confirmed purchase: 27 December 2018
Published on: 24 January 2019
Price Promise, delivery & returns

You won’t get it cheaper. Our Price Promise.

Find it cheaper at any major retailer, online or instore, and we’ll match it.

If you find any of the UK’s 50 top retailers, including (but not Amazon Marketplace),, Argos, Asda, John Lewis or Tesco has the same item at a cheaper price, we’ll match it. Even if their price includes an offer-code discount, and even up to 7 days after you bought from us.

How to request a price match

Delivering your online order

Get this delivered when it suits you

We’ll show you your current delivery options for this item in checkout. Subject to the time you order, and where you want delivery, these options will include:

  • FREE standard delivery in 3-5 working days
  • FREE next day delivery or any following day between 8am & 5pm (£FREE)
  • Delivery in a timeslot of your choice next day or any following day (£10.00)
Please note: if we’re out of stock of an item but getting more in, we indicate – on listings pages and the product page – how soon we can dispatch for delivery to you. In this case, please go ahead and order, and we’ll contact you later to confirm an exact delivery date.

Availability Checker

How and when can you get hold of your selections? Finding out should be quick and easy, so with just a few clicks our Availability Checker shows you:

  • Delivery dates, time-slots and prices
  • Local stores with stock you can collect from now
  • Local stores you can get items sent to for you to collect later
To use our Availability Checker, simply:

  1. Enter a town or postcode in the box on the product page for an item you’ve selected
  2. Click on the magnifying glass
  3. Review the delivery and collection options local to you – just click on any one to add it to your basket

Stock updates

Find something you want but it’s not in stock? On the item’s product page, simply click on ‘Email me when back in stock’, and let us have your email address. We’ll let you know as soon as it’s available again.

Returns and refunds

Whether an item you’ve bought is faulty or damaged, or you’ve changed your mind, it’s easy to get a refund.

Items you haven’t opened
Within 21 days of receiving an item you paid for online, on the phone, or in store you can return it for a full refund – provided your purchase is still in its original and unopened packaging. This promise is in addition to your statutory rights.

Items you’ve opened
Within 14 days of receiving an item you paid for online or on the phone, you can return it, even if you’ve opened it. To receive a refund, you must:

  • Let us know you plan to return the item within 14 days of delivery/collection
  • Physically return it within a further 14 days.
The item must be returned in ‘as new condition’ – not used or installed, and in its original packaging. More on returns and refunds.

Order online and collect in store

Sometimes you’ll want something even quicker than we can deliver. Or you can’t be in when our van or courier would arrive. That’s why we offer you the option to order online and collect in store.
Subject to what you’re ordering and where you want to collect from, you can:

Reserve & Collect – reserve online for free and collect at a local store as soon as you like. Once reserved, your item’s held till closing time the next day, to be paid for when you collect.

Pay & Collect – pay online, and have the item sent, for free, from our warehouse to a local store for you to collect. Starting on the date the item arrives in store – which you choose in checkout – you have 28 days to collect it.

Your fastest way to order online for collection is to use our ‘Availability Checker’ feature:

  1. Enter a town or postcode in the box on the product page for an item you’ve selected
  2. Click on the magnifying glass
  3. Review the collection options local to you – just click on any one to add it to your basket

Let's take care of it

For more peace of mind, add a Repair & Support Plan – if this computer suffers a fault or mishap, all costs to put it right are on us. Your benefits include:

  • Unlimited fast, hassle-free repairs
  • We'll fix in 7 days from taking this computer for repair, or replace with new
  • Annual computer health check
  • 24/7 technical support
  • Virus and spyware removal

If you're ordering this computer for delivery or for sending to a store to collect there, add a Repair & Support Plan on the basket page. If you're reserving this computer, add a Repair & Support Plan in store when you collect.

See more on our Repair & Support Plans for desktop computers.

Important information and exclusions

Compare prices of extended warranties for electrical goods at

Creation - your plan Flexible credit you control

To spread the cost, pay by Your Plan, our uniquely flexible credit option. Available on all orders £99 and over, this lets you:

  • Spread the cost with monthly payments, 24.9% APR representative
  • Choose the payment term that suits you
  • No deposit to pay and choose to pay it off early at no extra cost
  • Plus once you've opened an account, you can use it to spend again in the future on anything £99 and over
Learn more

How to apply
If you’re buying this item online, you can apply for credit at checkout. Or if you’re reserving online, or shopping in store, apply here.

DSG Retail Limited acts as a credit broker and not a lender. Credit is provided by Creation Consumer Finance Ltd.
Both DSG Retail Ltd and Creation Consumer Finance Ltd are authorised and regulated by the Financial Conduct Authority.

APPLE iMac 4K 21.5" (2017)