• 1-year warranty
  • Free standard shipping
  • Free 30-day returns
  • Friendly customer service

Refurbished iMac 21.5-inch

139 products
iMac 21" (2019)

iMac 21" (2019)Silver • 1128 GB

Starting at
$297.99
$1,499.00 new
iMac 21" (2017)

iMac 21" (2017)Silver • 1000 GB

Starting at
$221.99
$1,099.00 new
iMac 21" (2013)

iMac 21" (2013)Silver • 500 GB

Starting at
$199.00
$323.98 new
iMac 21" (2013)

iMac 21" (2013)Silver • 1000 GB

4.8/5
(8)
Starting at
$200.00
$1,999.00 new
iMac 21" (2015)

iMac 21" (2015)Silver • 1000 GB

3/5
(1)
Starting at
$213.00
$1,299.00 new
iMac 21" (2015)

iMac 21" (2015)Silver • 256 GB

2.6/5
(1)
Starting at
$216.00
$700.00 new
iMac 21" (2013)

iMac 21" (2013)Silver • 1000 GB

4/5
(9)
Starting at
$221.00
$1,099.99 new
iMac 21" (2017)

iMac 21" (2017)Silver • 256 GB

4.8/5
(13)
Starting at
$221.99
$1,099.00 new
iMac 21" (2015)

iMac 21" (2015)Silver • 1000 GB

4.2/5
(4)
Starting at
$224.00
$1,659.00 new
iMac 21" (2013)

iMac 21" (2013)Aluminium - 500 GB

Starting at
$229.00
$1,099.00 new
iMac 21" (2013)

iMac 21" (2013)1000 GB

Starting at
$229.00
$1,099.00 new
iMac 21" (2015)

iMac 21" (2015)Silver • 1000 GB

Starting at
$229.00
$1,099.00 new
iMac 21" (2015)

iMac 21" (2015)Silver • 1000 GB

Starting at
$229.00
$1,659.00 new
iMac 21" (2015)

iMac 21" (2015)Silver • 1000 GB

4.2/5
(4)
Starting at
$230.00
$1,385.98 new
iMac 21" (2015)

iMac 21" (2015)Silver • 1000 GB

5/5
(3)
Starting at
$230.00
$1,699.00 new
iMac 21" (2012)

iMac 21" (2012)Silver • 1000 GB

Starting at
$237.60
$1,299.00 new
iMac 21" (2013)

iMac 21" (2013)Silver • 1000 GB

4.6/5
(1)
Starting at
$237.60
$1,699.00 new
iMac 21" (2013)

iMac 21" (2013)Silver • 1024 GB

Starting at
$243.00
$1,299.00 new
iMac 21" (2013)

iMac 21" (2013)Silver - 1024 GB

Starting at
$246.99
$1,299.00 new
iMac 21" (2015)

iMac 21" (2015)Silver • 256 GB

Starting at
$254.00
$1,299.00 new
iMac 21" (2011)

iMac 21" (2011)Silver • 500 GB

Starting at
$260.00
$1,149.00 new
iMac 21" (2013)

iMac 21" (2013)Silver • 500 GB

Starting at
$268.92
$1,099.00 new
iMac 21" (2017)

iMac 21" (2017)Silver • 1000 GB

4.2/5
(30)
Starting at
$275.00
$1,299.00 new
iMac 21" (2013)

iMac 21" (2013)Silver • 500 GB

Starting at
$277.27
$1,099.00 new
iMac 21" (2017)

iMac 21" (2017)Silver • 512 GB

4.7/5
(7)
Starting at
$283.99
$1,299.00 new
iMac 21" (2017)

iMac 21" (2017)Silver • 1000 GB

2.5/5
(6)
Starting at
$286.20
$1,099.00 new
iMac 21" (2013)

iMac 21" (2013)Silver • 512 GB

1.9/5
(2)
Starting at
$289.00
$1,385.00 new
iMac 21" (2015)

iMac 21" (2015)Silver • 256 GB

Starting at
$289.00
$999.99 new
iMac 21" (2013)

iMac 21" (2013)Silver • 256 GB

Starting at
$299.00
$1,099.00 new
iMac 21" (2017)

iMac 21" (2017)Silver • 1000 GB

Starting at
$299.00
$1,299.00 new
iMac 21" (2013)

iMac 21" (2013)Silver • 1128 GB

Starting at
$299.00
$650.00 new

Refurbished iMac 21.5-inch's customer reviews

4.3/5

607 verified reviews in the last 24 months.

  • T

    Tamiera G.

    Purchased on January 7, 2025

    Verified purchase
    5/5

    I ordered in excellent condition. The product came perfect. Arrived in an apple certified refurbished box. It also came with a third-party keyboard and mouse, I ended up using my mouse and keyboard from my older iMac. But the third-party once provided work fine. I went through all of the settings, everything is exactly as it's supposed to be. Not a single scratch. Very satisfied with this purchase. Also I order on the 7th and it arrived on the 10th. It was originally estimated to arrive on the 14th but it shipped out the same day I ordered it. Very fast delivery.

    Reviewed in the United States on March 26, 2025

    iMac 24-inch Retina (Mid-2021) M1 3.2GHz - SSD 1 TB - 16GB
  • B

    Bart B.

    Purchased on March 7, 2025

    Verified purchase
    4.8/5

    The 2020 refurbished iMac is my 3rd purchase from Back Market. The iMac looked great. Much better than I expected. It also functions with no problems at all. It was packed and protected well for a safe and surprisingly fast delivery. I've come to believe that Back Market holds its vendors to a high standard and because of my experiences with them I will continue to check with them for future purchases.

    Reviewed in the United States on March 26, 2025

    iMac 27-inch Retina (Mid-2020) Core i7 3.8GHz - SSD 512 GB - 24GB
  • A

    Andrea Y.

    Purchased on January 11, 2025

    Verified purchase
    5/5

    WOW!!! I absolutely LOVE this pink iMac. I was a little nervous buying a refurbished iMac, but couldn't be more happy with my decision. It arrived at me home 1 day earlier than expected, I was stoked!!! It was packed up perfectly in a big Apple box. Oh boy, when I opened it, the heavens were signing down upon me. I ordered an "excellent condition", which looks brand spankin' new, not a scratch. I received a pink Apple mouse & keyboard, AHHH! I haven't stopped smiling since I got it. Super easy set up & everything works great. I am incredibly impressed and will be doing all of my refurbished shopping here. Thank you Back Market & Koala Stash for my beautiful iMac. XO I just have to RAVE about Back Market, Koala Stash & my new baby girl...2021 iMac. I'm so impressed with the brand newness, easy operating & fast moving operations of my iMac. The top notch service & hassle free dealings with Back Market will keep me coming back. I've been complaining a ton lately about the crappy service & junk products I've been receiving from other companies. I really wished Back Market sold everything I need in life. Working at home on this new well crafted iMac just makes me so very happy. Gr...

    Reviewed in the United States on March 26, 2025

    iMac 24-inch Retina (April 2021) M1 3.2GHz - SSD 512 GB - 8GB
  • J

    Jonathan D.

    Purchased on November 22, 2024

    Verified purchase
    5/5

    So far everything seems good with the refurbished IMac I purchased. It was listed as excellent condition and does in fact look that way. Shipping was pretty good. Back Market seemed to have the best price for what I was looking for. Overall very good experience and would recommend shopping here.

    Reviewed in the United States on March 26, 2025

    iMac 27-inch Retina (Early 2019) Core i5 3.0GHz - SSD 32 GB + HDD 1 TB - 16GB
  • H

    Heather J.

    Purchased on January 25, 2025

    Verified purchase
    4.6/5

    Okay first off-WOW at the condition. It looks brand new. It came in an Apple Certified Refurbished box with all matching accessories. It literally looks brand new. I am extremely happy with my purchase.

    Reviewed in the United States on March 26, 2025

    iMac 24-inch Retina (April 2021) M1 3.2GHz - SSD 512 GB - 8GB
  • M

    Michael P.

    Purchased on December 15, 2024

    Verified purchase
    4.6/5

    I'm coming from a Microsoft desktop so I'm trying my best to adapt to my "new" mac. I like it so far but I'm concerned about this Fusion Drive. I still need to contact the refurbishing company for details but overall I feel this will be a big improvement for me.

    Reviewed in the United States on March 26, 2025

    iMac 21.5-inch Retina (Early 2019) Core i5 3GHz - HDD 1 TB - 8GB
  • T

    Thomas P.

    Purchased on February 6, 2024

    Verified purchase
    5/5

    BackMarket - you really know how to deliver on your promised products. My iMac Pro arrived a few weeks ago in immaculate condition and works perfectly. Also the included refurbished Apple keyboard and mouse was the icing on cake! Beautiful. Great work! I've been using Apple Mac's for 30 years, and BackMarket's refurbished Apple Mac computers have me thinking about my next Mac, right now. IP Attorney in Darien CT

    Reviewed in the United States on March 26, 2025

    iMac Pro 27-inch Retina (Late 2017) Xeon W 3.0GHz - SSD 2 TB - 32GB
  • K

    Kenneth T.

    Purchased on January 31, 2025

    Verified purchase
    5/5

    The 24" iMac 2021 M1 model arrived in excellent condition as ordered and configured and was in Apple Certified Refurbished packaging with all original manufacturer cables and peripherals.

    Reviewed in the United States on March 26, 2025

    iMac 24-inch Retina (Mid-2021) M1 3.2GHz - SSD 1 TB - 16GB
  • M

    Mark C.

    Purchased on November 7, 2023

    Verified purchase
    4.6/5

    Just received a refurbished iMac 24 which looks immaculate. Have not plugged it in yet, but have high expectations! My only (slight) beef is that the keyboard is a wired Windows version, so CMD and OPT keys,and maybe function keys will be odd, and no Bluetooth. And the Mouse is not an Apple Mouse, it is one of those kinds requiring a dongle. The info on BackMarket says you get a Mouse and a Keyboard without saying they are not Apple...I just assumed they would be. This is a bit misleading, and I'll probably be looking for the real thing. I think BackMarket ought to be upfront about exactly what you are getting! I did get what the sale said I would, tongue in cheek, but not thrilled with that aspect of the sale! I will update once plugged in and operating. The packaging was "ok", the cardboard wrapper had a large tear in it, but the internal packaging completely enveloped the iMac and all was well.

    Reviewed in the United States on March 26, 2025

    iMac 24-inch Retina (Mid-2021) M1 3.2GHz - SSD 256 GB - 8GB
  • T

    Thomas W.

    Purchased on May 20, 2024

    Verified purchase
    5/5

    This was an amazing experience with Back Market! The refurbished iMac was carefully packaged and arrived quickly. The optional two year protection warranty provided the ease of mind when purchasing any electrical device.

    Reviewed in the United States on March 26, 2025

    iMac 21.5-inch Retina (Mid-2017) Core i5 3GHz - HDD 1 TB - 8GB
See all 607 reviews

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What is a refurbished 21.5-inch iMac?


A refurbished iMac 21.5-inch is a pre-owned Apple desktop computer that has been restored to its original condition and performance by professionals. At Back Market, we handpick each and every one of the sellers on our platform to make sure you're getting the best refurbished iMac 27-inch available. The refurbishment process typically involves rigorous testing, cleaning, and repairs, so that the computer meets the same standards as a brand new device. So when you buy refurbished you're basically getting a new iMac 27-inch at a discounted price.

21.5-Inch iMac warranty and return policy


All iMac 21.5-inch purchases on Back Market come with free standard shipping, a 1-year warranty, and a 30-day money-back guarantee. We want to make sure you can shop with confidence and find the best Apple computer for your needs at lower prices.

 

What to expect from your refurbished iMac


If you're buying a reconditioned iMac 27-inch for the first time, you might not be sure what to expect from your purchase. First, understand that your Mac may have cosmetic flaws depending on the condition you choose (Back Market offers devices of Fair, Good and Excellent quality). However, whatever the condition, it's important to know that any external blemishes will not affect computer performance and you can expect your device to perform as if it were newly opened directly from the Apple Store. You should also be confident that your iMac 27-inch computer is backed by a 1-year warranty, meaning in the rare case that any defects arise (outside of accidental damage) within 12 months of your delivery date, then you're entitled to your choice of a repair, replacement or reimbursement.

  

iMac deals for students


Great news for students shopping for refurbished computers on Back Market - we offer all eligible college and university students a $20 discount on their purchases of $250 or more. If you need help deciding on your next computer or laptop, check out our guide on the best laptops for college.