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Mac Owners: Use Your iPad as a Second Monitor for Your Computer

If your computer’s screen isn’t enough, use your iPad as a secondary display.

Even if you have a large Mac screen, it may not always be enough. Many people invest in a second monitor to get some breathing room when they’re gaming, streaming and multitasking. However, if you don’t want to spend money on another device that takes up space, you may not have to — with an iPad, you can get dual displays for free.

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As long as you have a Mac and iPad that are compatible, you can quickly and easily connect the two Apple devices and use the iPad as an extra display for your Mac computer. Using Sidecar, which comes built-in to supported devices, you can either extend your MacOS desktop or just mirror it onto your iPad, equipped with touchscreen controls to seamlessly use the two devices together. Here’s what you need to know.

In the market for an iPad? Here is a list of the best iPad choices for 2023 and the best deals on iPads.

Requirements to use your iPad as a second display

As mentioned above, both of your devices need to support Sidecar, which is the feature that allows you to use your iPad as a second monitor for your Mac. For your Mac, you must be running MacOS Catalina or later and it has to be one of the following models:

  • MacBook Pro (2016 or later)
  • MacBook (2016 or later)
  • MacBook Air (2018 or later)
  • iMac (2017 or later and Retina 5K, 27-inch, Late 2015)
  • iMac Pro
  • Mac Mini (2018 or later)
  • Mac Pro (2019 or later)
  • Mac Studio

And for your iPad, it must be running iPadOS 13 or later and be one of the following models:

  • iPad Pro
  • iPad (6th generation or later)
  • iPad Mini (5th generation or later)
  • iPad Air (3rd generation or later)

It’s best to update your devices to the latest software available to avoid any issues. Also, both devices must be logged in to the same Apple ID account, using two-factor authentication. 

If you plan on going wireless, the two devices must be within 30 feet of one another. You can also use your USB to connect the two devices, with the advantage of being able to also charge your iPad while it’s in use as a second monitor.

Share your entire Mac desktop to your iPad

Depending on what software update you have on your computer, sharing your computer desktop to your tablet may vary. If you’re running MacOS Big Sur or later, click the Display icon in the menu bar at the top right. In the menu that appears, choose your iPad.

If you’re on MacOS Catalina, you’ll instead click on the AirPlay icon in the menu bar and then select your iPad. If for some reason you don’t see the AirPlay icon, click the Apple menu in the top right and go to System Preferences > Displays and check Show mirroring options in the menu bar when available.

Display menu on MacDisplay menu on Mac

Click the Display option in the menu bar to find your iPad.

Screenshot by Nelson Aguilar/CNET

Once your Mac and iPad are connected, you have several options to choose from that appear in the Display/AirPlay menu:

  • Mirror Built-in Retina Display: Mirror your exact desktop to your iPad. This will shift your computer desktop to look more like your iPad.
  • Use As Separate Display: Use the iPad as an extension to your desktop. To use your iPad display, drag any window or files from your Mac computer to the right of your screen, which will take you to the tablet. To go back to your computer, simply drag your cursor back to where you came from.

Share only one Mac window to your iPad

Alternatively, you can quickly share a window instead of dragging it over to your iPad. For example, you could share your web browser in Safari or what you’ve jotted down in your Notes. To do this, simply hover your mouse cursor over the green full-screen button that appears on the top left of most windows. After a second of hovering, you should see an option that says “Move to iPad,” which will share that window to your tablet. You can share multiple windows, in succession, to your iPad.

Share window via SafariShare window via Safari

Hover over the full-screen button to send that window to your iPad.

Screenshot by Nelson Aguilar/CNET

Using the sidebar controls, gestures and Touch Bar on your iPad

Once your screen is shared over to your iPad, a set of controls will appear on the left side of your iPad, which are sidebar controls you’ll commonly see on your Mac. That includes, from top to bottom:

  • Menu bar: Show or hide menu bar when in full-screen
  • Dock: Show or hide dock
  • Command: Double-tap to lock key
  • Option: Double-tap to lock key
  • Control: Double-tap to lock key
  • Shift: Double-tap to lock key
  • Undo: Undo last action
  • Keyboard: Show or hide keyboard
  • Disconnect: Disconnect iPad from Mac

In addition to these Mac controls, you can also use a number of swipe gestures to control certain things on the second monitor (you won’t be able to use the touchscreen as usual though). That includes swiping with two fingers to scroll, pinching in with three fingers to copy, swiping left with three fingers to undo and more.

And finally, you may also be able to use the Touch Bar, if the application on your iPad is compatible. For instance, if you move Safari over to the iPad, you’ll see Touch Bar controls to go back and forward, use the search bar, flip between tabs and open a new tab. In Messages, you would see controls to create a new text, send an emoji and predictive text. The Touch Bar may not appear for every app you use on your iPad.

iPad monitoriPad monitor

This is what your iPad will look like as a second monitor.

Screenshot by Nelson Aguilar/CNET

If you don’t want to use the Sidebar or Touch Bar controls, you can also get rid of them. On your Mac, click on the Display icon in the menu bar, and underneath your connected iPad, you should see Hide SideBar and Hide Touch Bar. Click on either or both options to hide the controls from your iPad.

Using your iPad while connected to your Mac

Even if you’re using your iPad as a second monitor, you can still swipe up to exit the Sidecar application and use your iPad as usual. In your dock, you’ll see a blue icon with two monitors on it — this is Sidecar. To go back to using your iPad as a second monitor, tap on the Sidecar app icon in the dock.

iPad user interfaceiPad user interface

You can use your iPad as usual, even when connected to a Mac via Sidecar.

Screenshot by Nelson Aguilar/CNET

If you’re interested in learning more about what your iPad is capable of, check out how to declutter your iPad dock by removing this annoying feature and nine things to do immediately after you get a new iPad.

Technologies

Iranian President Pezeshkian to head to New York for UN meeting as Trump warns of no-deal consequences

Trump threatened to destroy Iran’s economy or eliminate its leadership if Tehran doesn’t strike a deal, complicating efforts at diplomacy.

President Masoud Pezeshkian will lead an Iranian delegation at the United Nations General Assembly in New York on Tuesday, amid renewed hopes for a diplomatic solution to the Middle East conflict.

Pezeshkian will address the assembly and present Iran’s positions on “international developments,” according to the country’s semi-official Tasnim news agency, with a particular focus on its war with the U.S. and Israel.

He will also hold talks with the leaders of several countries on the sidelines of the event, which is scheduled to take place Sept. 22 to 26, and 28.

The Iranian delegation’s attendance at the UN has renewed hopes for a diplomatic solution to the war, lifting market sentiment on Monday, with stocks rising, oil prices easing and global bond yields falling sharply.

But U.S. President Donald Trump, who has said he would be open to meeting Pezeshkian during the assembly, has threatened to destroy Iran’s economy or eliminate its leadership if Tehran doesn’t strike a deal.

Trump told Fox News on Sunday that the only options on the table were “wiping Iran out,” or letting its economy “rot,” unless both sides reach a deal.

Separately, Iran’s military said that its intelligence suggested a new, large-scale strike being prepared by the U.S. and its allies, warning of “painful” retaliation across the Middle East. Regional countries backing such a strike would be treated as parties to the conflict, it said.

“If the U.S. makes any mistake against the Islamic Republic of Iran, all its positions and interests in the region will be targeted by sustained, effective and painful attacks,” the Khatam al-Anbia Central Headquarters of Iran said, according to Tasnim.

Houthi-Saudi conflict complicates diplomacy hopes

The U.S. State Department this weekend issued a security alert citing risks of unforeseen escalation in the Middle East, telling Americans to exercise more vigilance and be aware of possible flight cancellations and airspace closures.

The warnings came after Iran-backed Houthi militants claimed missile and drone attacks on Riyadh on Saturday, triggering the first air-raid alert in the Saudi capital since fighting escalated in July.

Saudi authorities said they intercepted and destroyed a ballistic missile and reported no casualties or damage. The Houthis also attempted to target civilians and infrastructure in several parts of the kingdom, Saudi-led coalition forces spokesperson Major-General Turki al-Maliki said on X on Saturday, though those attacks were thwarted by the country’s air defenses.

Oil prices have pulled back in recent days despite widening hostilities, as traders hope for a recovery in energy shipments from oil-rich Saudi Arabia.

Oil prices will remain high despite U.S. progress in moving oil through the Strait of Hormuz, a team of analysts at Eurasia Group said in a Saturday note. Any rebound in oil flows would not be enough to address the overall market deficit, they said, forecasting Brent prices to trade in a higher band of $90-110 per barrel through the rest of this year.

“Iran’s leadership will stick with resistance, even as they quarrel internally,” according to the consultancy firm, as Tehran seeks to use military proxies and tanker attacks to keep a chokehold on shipping flows, to pressure Washington into concessions.

Tehran has insisted that it would not reopen the Strait of Hormuz until Washington fulfills its commitment under the June memorandum, which called for lifting the naval blockade of Iranian ports, easing sanctions, unfreezing Iranian assets and ending U.S. military threats.

Iranian parliament speaker Mohammad Bagher Ghalibaf said Sunday that Iran must keep on fighting and negotiating, to push back its enemies, and only work on diplomacy when it has the upper hand on the battlefield.

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Technologies

U.S. crude oil drops below $100 a barrel as Trump signals willingness to negotiate with Iran

U.S. crude oil prices slipped back below $100 a barrel after President Trump signaled openness to talks with Iran and halted plans to bomb Yemen, while Middle East supply flows remained robust despite pipeline disruptions.

Crude oil prices declined for the fourth straight session on Monday after President Donald Trump reportedly decided against bombing Yemen for the time being and indicated he was open to diplomatic engagement with Iran.

U.S. West Texas Intermediate futures fell 2.7% to $97.59 per barrel by 7:48 a.m. ET, while Brent crude, the global benchmark, slipped 2.8% to $101 a barrel. The market has risen more than 11% so far this month.

Trump told Fox News he would likely be receptive to meeting Iranian President Masoud Pezeshkian at the United Nations General Assembly later this week.

According to The New York Times, the president has decided not to target the Iran‑aligned Houthi militants for now, despite requests from Saudi Arabia.

Meanwhile, crude shipments from the Middle East appear resilient after Saudi Arabia shut down its East‑West pipeline following attacks. JPMorgan analysts noted in a September 18 report that oil flows from the region remain surprisingly strong, averaging 17.1 million barrels per day over the past 10 days—about 6.1 million bpd below the 2025 average.

Potential supply disruptions persist. Trump told Fox that he is in a “deciding mode” and that “very big things” are expected soon regarding the U.S.–Iran conflict.

Prices are likely to stay closely linked to the pace of export normalization and diplomatic progress, said Daniel Takieddine, co‑founder and CEO of Sky Links Capital Group.

Any setback or renewed deterioration in shipping conditions would tighten the physical market and restore upward pressure on prices, Takieddine added.

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Technologies

White House TV press pool won’t cover Trump after CNN ban

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Politics & Policy
White House TV press pool won’t cover Trump after CNN ban
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Politics & Policy

White House TV press pool won’t cover Trump after CNN ban

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