iMac 21.5-inch 2021 with Retina 4K Display (8GB RAM, 1TB Storage) All-in-One Desktop

Apple iMac 21.5-inch Introduction

One for everyone. If you can dream it up, you can do it on iMac. It’s beautifully designed, incredibly intuitive, and packed with powerful tools that let you take any idea to the next level. And the model enhances the experience in every way, including faster processors and graphics, expanded memory and storage, enhanced audio and video capabilities, and more stunning Retina 4K displays. Apple iMac 21.5-inch the desktop that does it all – better and faster than ever. Our expert guide arranges all the information you need to ensure that the model and configuration you choose is the most suitable for your specific needs.

Apple iMac 21.5-inch 4K (2021). Internally, they are completely different animals. Most of this is because one was barely refreshed and the other did not. This is why we recommend one model over another. This is one of the current iMacs on the market right now! Apple basically offers three types of iMac, two of which come in several base configurations and you can customize the internal features of the iMac you choose at the time of purchase, so it’s a good idea to consider what type of machine you need. Learn more iMac 27-Inch

Apple iMac 21.5-inch

Apple iMac 21.5-inch About this item

  • 21.5-inch (diagonal) 1920-by-1080 resolution display
  • Stunning 5-mm-thin design
  • Dual-core 7th-generation Intel Core i5 Processor
  • Intel Iris Plus Graphics 640
  • Two Thunderbolt 3 (USB-C) ports
  • 802.11AC Wi-Fi
  • Magic mouse 2
  • Magic keyboard
  • macOS, inspired by pros but designed for everyone, with dark mode, Stacks, easier screenshots, new built-in apps, and more

Apple iMac 21.5-inch Technical Space



21.5-inch (diagonal) LED-backlit display
1920‑by‑1080 resolution with support for millions of colors

Retina 4K display

21.5-inch (diagonal) Retina 4K display
4096-by-2304 resolution with support for one billion colors
500 nits brightness
The wide color (P3)

Apple iMac 21.5-inch Processor


2.3GHz dual‑core Intel Core i5, Turbo Boost up to 3.6GHz


3.6GHz quad‑core Intel Core i3

Configurable to 3.2GHz 6-core Intel Core i7, Turbo Boost up to 4.6GHz


3.0GHz 6-core Intel Core i5, Turbo Boost up to 4.1GHz

Configurable to 3.2GHz 6-core Intel Core i7, Turbo Boost up to 4.6GHz




Apple iMac 21.5-inch Memory

8GB of 2133MHz DDR4 memory

Configurable to 16GB

8GB of 2400MHz DDR4 memory

Configurable to 16GB or 32GB

8GB of 2666MHz DDR4 memory

Configurable to 16GB or 32GB

Apple iMac 21.5-inchStorage


Configurable to 1TB Fusion Drive


Configurable to 1TB Fusion Drive, 512GB SSD, or 1TB SSD


Configurable to 1TB Fusion Drive, 512GB SSD, or 1TB SSD


Intel Iris Plus Graphics 640 Radeon Pro 555X with 2GB of GDDR5 memory Radeon Pro 560X with 4GB of GDDR5 memory

Configurable to Radeon Pro Vega 20 with 4GB of HBM2 memory

Apple iMac 21.5-inch

Video Support and Camera

FaceTime HD camera

  • Simultaneously supports full native resolution on the built-in display at millions of colors (Apple iMac 21.5-inch) or 1 billion colors (Apple iMac 21.5-inch 4K) and:
  • One 5120‑by‑2880 (5K) external display at 60Hz with support for 1 billion colors, or
  • Two 3840-by-2160 (4K UHD) external displays at 60Hz with support for 1 billion colors, or
  • Two 4096‑by‑2304 (4K) external displays at 60Hz with support for millions of colors
  • Thunderbolt 3 digital video output
  • Native DisplayPort output over USB‑C
  • Thunderbolt 2, HDMI, DVI, and VGA output supported using adapters (sold separately)

Apple iMac 21.5-inch Audio

  • Stereo speakers
  • Microphone
  • 3.5 mm headphone jack

Connections and Expansion

  • 3.5 mm headphone jack
  • SDXC card slot
  • Four USB-A ports
  • Two Thunderbolt 3 (USB-C) ports with support for:
    • DisplayPort
    • Thunderbolt (up to 40Gb/s)
    • USB 3.1 Gen 2 (up to 10Gb/s)
    • Thunderbolt 2, HDMI, DVI, and VGA supported using adapters (sold separately)
  • 10/100/1000BASE-T Gigabit Ethernet (RJ-45 connector)
  • Kensington lock slot

Apple iMac 21.5-inch Input

  • Magic Keyboard
  • Magic Mouse 2
  • Configurable with Magic Keyboard with Numeric Keypad
  • Configurable with Magic Trackpad 2

Apple iMac 21.5-inch Wireless


  • 802.11ac Wi-Fi wireless networking
  • IEEE 802.11a/b/g/n compatible


  • Bluetooth 4.2 wireless technology

Size and Weight

Apple iMac 21.5-inch

  • Height: 17.7 inches (45.0 cm)
  • Width: 20.8 inches (52.8 cm)
  • Stand depth: 6.9 inches (17.5 cm)
  • Weight: 12.0 pounds (5.44 kg)

21.5-inch iMac with Retina 4K display

  • Height: 17.7 inches (45.0 cm)
  • Width: 20.8 inches (52.8 cm)
  • Stand depth: 6.9 inches (17.5 cm)
  • Weight: 12.1 pounds (5.48 kg)

Electrical and Operating Requirements

  • Line voltage: 100–240V AC
  • Frequency: 50Hz to 60Hz, single phase
  • Operating temperature: 50° to 95° F (10° to 35° C)
  • Relative humidity: 5% to 90% noncondensing
  • Operating altitude: tested up to 16,400 feet (5000 meters)

Operating System


macOS is the most advanced desktop operating system in the world. macOS Big Sur introduces a bold new design and major updates to apps — taking macOS to a new level of power and beauty.

Apple iMac 21.5-inch Accessibility

Accessibility features help people with disabilities get the most out of their new iMac. With built-in support for vision, hearing, mobility, and learning, you can create and do amazing things.

Features include:

  • Voice Control
  • VoiceOver
  • Zoom
  • Increase in Contrast
  • Reduce Motion
  • Siri and Dictation
  • Switch Control
  • Closed Captions
  • Text to Speech

Apple iMac 21.5-inch Built-in Apps

  • Photos

Apple iMac 21.5-inch

Apple iMac 21.5-inch Design

The Apple iMac 21.5-inch didn’t get any significant updates, but can now be configured with SSD storage by default. All other glasses remain the same. If you’re thinking about MacOS, Apple says the 21.5-inch iMac is the latest in your hard-earned money fight. These updates are not as expected for classic iMac models. Since its release in 2014, almost nothing has changed about iMac’s external presence. Each upgrade features the same 21.5-inch screen, 4K resolution, P3 color gamut, and 500-night brightness.

This is a great choice for a desktop computer that will handle common tasks like web browsing, email, and productivity applications to manage your life effortlessly. Additionally, it is able to handle more demanding applications. However, this year’s update is not good. In fact, the new processors and graphics cards are much more capable than the previous ones available on the latest iMacs. The design of Unibid has not changed either. Tap 5 mm up to a large shoot on the back of the frame to hold the internal elements. There is a large chin at the bottom of the screen.Apple iMac 21.5-inch


Cooling from an interior fan and coming out from under the screen, there is some concern that this design will be limited in temperature to the next generation. The vision behind the iMac is never terrifying. Transform the desktop experience by fitting powerful, easy-to-use technology into elegant, all-in-one designs. With the latest processor, fast memory, and great graphics. Through Mac, everyone is becoming vibrant on the brightest, most vibrant retina displays. Apple iMac 21.5-inch is a total package driven.

The chassis, measuring 20.8 by 6.9 inches (HWD) by 17.8, is an aesthetic that is chic, classic, or both, depending on which element you are noticing first. Silver aluminum and clean lines are responsible for the smooth look and have nothing to do with the front – no buttons, no LEDs, no ports at the bottom of the screen, just the glossy, Apple logo. With Intel’s latest generation of Core i5 processors, the 2.3GHz, 21.5 “Apple iMac packs more power than ever before – and the value packs here. Apple iMac 21.5-inch comes with an advanced graphics processor, a gorgeous integrated backlit LED screen, Thunderbolt, and USB 3 ports, and a Max Catalina.

iMac 21.5-inch Display

Apple iMac 21.5-inch Display

Draw you a billion colors and everything looks better on a retina display with 500 brightness. Photos and graphics jump from the screen. The writing is very sharp. And for the first time, the Apple iMac 21.5-inch has True Tone technology and a nano-textured glass option to reduce glare for a more natural viewing experience. A minimal glimpse is the most detailed. First seen on the Pro Display XDR, the Apple iMac 21.5-inch nano-textured glass option is a game-changer for the workplace with sunlight, direct light, or changing lighting conditions. Unlike ordinary matte display coatings, the nano-texture is bound to the glass at the nanometer level. For jaw-drop image quality, it reduces glare while preserving contrast.

As you can see, there are significant differences between the two iMac models, starting with the display size and resolution. The most obvious difference is its Retina 4K screen when you save some more cash to bring home the real 2019 Apple iMac 21.5-inch. All 27-inch iMacs provide 5K (202020 – 80 2880) resolution with support for one billion colors. All but one of the Apple iMac 21.5-inch models have 4 billion (4096 by 2304) resolutions that support one billion colors.21.5-inch Display


5K model with an Apple iMac 21.5-inch display is not available. It supports the P3 color gamut, which displays billions of colors. The main thing that separates Apple’s 4K and 5K iMacs is of course the screen size and resolution. The 4K Apple iMac 21.5-inch has a resolution of 4096 x 2304 and both models have 500 net brightness and wide color support for wide, vibrant colors and impeccable image quality. The True Tone technology is integrated into the Apple iMac 21.5-inch, which automatically adjusts the white balance of the ‘iMac’ display to match the color temperature of the light around you. Apple says it provides a more natural viewing experience.

Temporary and spatial distance techniques are used to color or decorate pixels so that the human eye effect can be interpreted as a mixture. The size of the screen and display quality shouldn’t be the only decision when buying an iMac, as Apple has left its entire 5K-service with a whole beef interior for quick performance. This small screen is not a particularly flexible option. Luckily, the Apple iMac 21.5-inch weighs only 12 pounds, so it’s easy to turn around to access the rear ports. If you want to use a third party stand for more flexibility, you can order an i-Mac special with a Visa mounting bracket instead of the default stand.

Apple iMac 21.5-inch Performance & Memory

From fast to fasten your seatbelt. iMac and powerful processors go hand in hand. Up to a 6-core Intel Core i7, processor gives the Apple iMac 21.5-inch all the power you need for creating in Photoshop, editing video, or making music. And the 27-inch model offers up to a 10-core Intel Core i9 processor to sail through heavy tasks like layering dozens of audio tracks or compiling and testing code. Customers can choose between the Radon Pro 560X with 4GB GDDR5 memory or the Radon Pro Vega 20 with 4GB HBM2 memory. Across the board, you’ll get 8GB of DDR4 memory as standard, a clock speed that Apple has up to 2,666MHz this year.

Apple iMacThis size is suitable for basic work but the Apple iMac 21.5-inch is your choice. We look forward to exploring iFixit on how Apple internally created the new Apple iMac 21.5-inch. In the 2017 version, iFixit recorded a 64-step RAM upgrade process involving the removal of a screen, screws, circuit board, and hard disk. Faster and more powerful than ever, the iMac is now equipped with seventh-generation Intel Core i5 and i7 processors and the latest high-performance graphics. With fast and wide fusion the storage kicks in high gear, now the drive is available in a standard configuration for both the Apple iMac 21.5-inch Retina models.

Performance & Memory

So you can do whatever you want on iMac. All at the highest speed. When Apple updated the iMac lineup in 2019, it was basically stuck with Intel’s eighth-generation processor, but Apple says its selected processors deliver up to 2x the performance of previous-generation iMac. The biggest gains in CPU performance can usually be estimated by the number of cores in the processor. Intel If you are considering an Apple iMac 21.5-inch 4K IMac for little work like emailing, web browsing, and general productivity, then the quad-core i3 processor should be right for your needs. It’s worth an extra $300 for a mid-level configuration of a six-core i5 processor after intensive editing.


Apple iMac 21.5-inch Graphics

Apple provides AMD Radion Pro graphics across the full range of its new 4K iMac, so if you’re an NVIDIA fan, you’re not in luck. The next step is. At any level. Imac’s graphics make everything worth seeing. The Apple iMac 21.5-inch model comes with AMD Radeon Pro 500X series graphics and can be configured with an AMD Radeon Pro Vega 20 GPU to power through tasks like 3D rendering or complex video effects with ease. And the 27-inch model brings AMD Radeon Pro 5000 series graphics with up to 16GB of GDDR6 memory for graphics-intensive workflows like editing UHD video or developing lifelike game environments.

The Apple iMac 21.5-inch has powerful new Radion Pro 500 series graphics that make you look very nice. Both provide visual effects and 3D graphics that showcase the strength of its most polished glass. On top of that, you get advanced video editing capabilities. Now you can edit up to five full resolution 4K videos with the Final Cut Pro X Multicam project. When it comes to graphical capabilities, Tomb Rider dials the highest quality, and reviews of our Apple iMac 21.5-inch Radion Pro 560X – better than two stock options – are spiritually weak.

Even at 1,920 x 1,080, the 560X could not summon a playable frame rate. Its overall score was 11 frames (fps) per second. So, with these two GPUs, the resolution is reduced as well as ready for effects settings. The frame rate goes up to 36 degrees with a more comfortable playing experience when we choose the high quality preset of this game.


Apple iMac 21.5-inch Storage

More space. More speed. All-flash SSD storage is now standard on all iMac models, bringing high capacity and lightning speed. And the Apple iMac 21.5-inch can now be configured up to a whopping 8TB SSD with up to 3.4GB/s sequential read and write speeds, for screaming-fast access to all of your photo and video libraries, massive files, and pro apps. All of Apple’s 4K Apple iMac 21.5-inch 6 base models come with 256GB or 512GB SSD storage. A 1TB Fusion drive remains an option on 4K Apple iMacs 21.5-inch, and basically, the serial ATA drive is “fused” with a solid-state drive.

Often the accessed data is stored in the fast flash part of the drive, on the other hand, very rarely accessed files live on the mechanical hard drive. A fusion drive expands a hard disk with a small amount of SSD storage, and macros add two pairs of software steps to make it look like a drive. Behind the scenes, macOS works – not just once, but consistently – most of the time you use any data with. It tries to keep your most-used data blocks, which do not fit into the entire files in the SSD part of the fusion drive.


Since it’s full, it doesn’t look like you’ll need a hard drive to send it anytime soon, with the goal of providing some of the fastest storage media available for immediate use through systems and applications. Storage space around. But it’s also about speed. A fusion drive gives you the best of both worlds. The apps and files you use the most are automatically saved to quick flash storage, while everything else goes to high-powered hard drives. From booting applications to importing photos, Fusion Drive makes it faster and more efficient.

With SSD, overall, you can feel higher power and lightning speed. Also, because SSD means no moving parts, it makes your machine less vulnerable. Low SSD also provides faster read-write speeds.

Apple iMac Camera

Camera, Speakers, and Mics

Mics, camera, action. From crystal clear video calls and voice recordings to music and movies that fill the room, iMac is an all-star for communications and content. The Apple iMac 21.5-inch now features a 720p FaceTime HD camera and a studio-quality three-mic array. And the T2 chip acts in concert with the speakers to enable variable EQ and enhanced bass response, so all your content can have big, balanced high-fidelity sound.

Apple iMac

Apple T2 Security Chip & Connectivity

Your own private security detail. The Apple T2 Security Chip comes to the Apple iMac 21.5-inch, with a Secure Enclave coprocessor that provides the foundation for secure boot and encrypted storage capabilities. The T2 chip also enables powerful features like the 720p FaceTime HD camera, face detection, enhanced speaker bass response, and “Hey Siri” — and makes transcoding HEVC video up to twice as fast as the previous generation.

Apple iMac connectivity

Packed with ports. And possibilities. Every iMac features two superfast Thunderbolt 3 (USB-C) ports and four USB-A ports, giving you plenty of high-performance options for connecting external drives, cameras, displays, and more. All iMac models come with a 1Gb Ethernet port, and now you can configure the Apple iMac 21.5-inch with 10Gb Ethernet for up to 10 times the throughput of the previous generation. Ultrafast Wi-Fi and Bluetooth are standard on every iMac, and the Apple iMac 21.5-inch model features Bluetooth 5.0, so you’re instantly connected to your favorite content and wireless devices. Learn More iMac 27-Inch


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