macOS Catalina's 'Sidecar' Feature for Turning the iPad Into a Second Display Limited to Newer Macs

Apple in macOS Catalina introduced a new feature called Sidecar, which is designed to turn an iPad into a second display for a Mac, either extending what's on the screen or mirroring the content.

Apple hasn't yet provided details on which devices will work with ‌Sidecar‌, but developer Steve Troughton-Smith was able to find some details by digging into macOS Catalina's code.

mac sidecar 2
As it turns out, ‌Sidecar‌ is limited to many of Apple's newer Macs, and the devices listed below will be able to use it.

It's not clear if this is a complete list, but Troughton-Smith says a long list of older machines are blacklisted from taking advantage of the feature. Some older Macs that are not greenlit for ‌Sidecar‌ can still use the feature via the Terminal command provided by Troughton-Smith, but there's no complete list on exactly which older Macs the Terminal command works with.


There's no word on whether all iPads will work with ‌Sidecar‌, or if there will be limitations on that end as well. iPadOS, required for ‌Sidecar‌, runs on The iPad Air 2 and later, the iPad mini 4 and later, the 5th-generation ‌iPad‌ and later, and all iPad Pro models.

The oldest of these iPads, the ‌iPad mini‌ 4 and the ‌iPad Air‌ 2, use A8 and A8X chips respectively, while the newer models all use more powerful chips.

Update: According to a MacRumors reader who has used the feature, ‌Sidecar‌ works well with the ‌iPad Air‌ 2, which means it should also work with all other iPads that are compatible with iOS 13.

Related Forum: macOS Catalina

Popular Stories

iOS 18

Here Are Apple's Full Release Notes for iOS 18.2

Thursday December 5, 2024 11:48 am PST by
Apple seeded the release candidate version of iOS 18.2 today, which means it's going to see a public launch imminently. Release candidates represent the final version of new software that will be provided to the public should no last minute bugs be found, and Apple includes release notes with the RC launch. The iOS 18.2 release notes provide a look at all of the new features that are coming...
New Things Your iPhone Can Do in iOS 18

20 New Things Your iPhone Can Do in iOS 18.2

Friday December 6, 2024 4:42 am PST by
Apple is set to release iOS 18.2 in the second week of December, bringing the second round of Apple Intelligence features to iPhone 15 Pro and iPhone 16 models. This update brings several major advancements to Apple's AI integration, including completely new image generation tools and a range of Visual Intelligence-based enhancements. There are a handful of new non-AI related feature controls...
iPhone 17 Slim Feature

iPhone 17 'Air' Expected to Be ~2mm Thinner Than iPhone 16 Pro

Friday December 6, 2024 4:07 pm PST by
In 2025, Apple is planning to debut a thinner version of the iPhone that will be sold alongside the iPhone 17, iPhone 17 Pro, and iPhone 17 Pro Max. This iPhone 17 "Air" will be about two millimeters thinner than the current iPhone 16 Pro, according to Bloomberg's Mark Gurman. The iPhone 16 Pro is 8.25mm thick, so an iPhone 17 that is 2mm thinner would come in at around 6.25mm. At 6.25mm,...
iPhone 14 Pro Display Two Times Brighter Feature

Every Display Upgrade Rumored for Apple's iPhone 17

Friday December 6, 2024 5:14 am PST by
Apple's next-generation iPhone 17 lineup may bring some of the most significant display improvements we've seen in recent years. While the iPhone 17 series isn't expected until late 2025, multiple rumors suggest Apple is working on substantial screen upgrades across its entire smartphone range. From enhanced refresh rates to advanced materials and improved power efficiency, these display...
airpods pro 2 gradient

AirPods Pro 3 Expected Next Year: Here's What We Know

Thursday November 28, 2024 3:30 am PST by
Despite being released over two years ago, Apple's AirPods Pro 2 continue to dominate the wireless earbud market. However, with the AirPods Pro 3 expected to launch sometime in 2025, anyone thinking of buying Apple's premium earbuds may be wondering if the next generation is worth holding out for. Apart from their audio and noise-canceling performance, which are generally regarded as...
iCloud General Feature

Apple Defeats Lawsuit Related to iCloud's Measly 5GB of Free Storage

Friday December 6, 2024 7:43 am PST by
The U.S. Court of Appeals for the Ninth Circuit this week upheld a lower court's dismissal of a lawsuit alleging that Apple illegally deceived customers into paying for iCloud storage, according to a court filing. The decision was reported by Law360. The lawsuit alleged that Apple deceived customers into purchasing iCloud-enabled devices by misleading customers into believing that they can...
surface studio 4

Microsoft Discontinues iMac Rival Surface Studio 2+

Friday December 6, 2024 6:30 am PST by
Microsoft has discontinued its Surface Studio 2+, marking the end of the company's only direct competitor to Apple's iMac, leaving a gap in the Windows ecosystem for high-end all-in-one PCs. Microsoft has confirmed to Windows Central that it has ended production of the Surface Studio 2+, a premium all-in-one desktop designed for creative professionals. With remaining stock now limited to...
open ai logo

OpenAI Launches $200/Month ChatGPT Pro Plan

Thursday December 5, 2024 4:19 pm PST by
OpenAI today announced the launch of ChatGPT Pro, a $200 per month subscription service that provides unlimited access to OpenAI o1, the company's newest and most advanced large language model. The plan includes unlimited use of OpenAI o1, o1-mini, GPT-4o, and Advanced Voice, along with o1 pro mode, an o1 version that uses more compute to provide better answers to the hardest problems. In...

Top Rated Comments

HacKage Avatar
72 months ago
Are there any hardware limitations for this, or are Apple just taking the piss?

The Mac Pro that you can go into the stores and buy right now isn't supported!
Score: 29 Votes (Like | Disagree)
Dr. McKay Avatar
72 months ago
Disappointing, very disappointing. My mid 2015 15 inch MB Pro is out, then. Don't tell me an i7 and a dedicated Radeon graphics card can't handle Sidecar...
Score: 26 Votes (Like | Disagree)
nerdAFK Avatar
72 months ago
Typical Apple move.

It's not about performance.
If a 2018 MacBook Air can do it, how can any retina MacBook Pro not be about to do it performance wise??
Not to mention 2013 Mac Pro
Score: 16 Votes (Like | Disagree)
GoodWheaties Avatar
72 months ago
Typical Apple move.

It's not about performance.
If a 2018 MacBook Air can do it, how can any retina MacBook Pro not be about to do it performance wise??
Not to mention 2013 Mac Pro
It apparently uses hardware HEVC support for the best picture. Which I think only started with Skylake CPUs.
Score: 15 Votes (Like | Disagree)
maxfromdenmark Avatar
72 months ago
how typical
Score: 12 Votes (Like | Disagree)
nicho Avatar
72 months ago
I’d wager it involves the T2 chip somehow
I'll take that wager (and your money), since iMacs don't have a T2 chip nor do pre-2018 MBPs.
Score: 8 Votes (Like | Disagree)