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There’s no question that having a second monitor helps boost productivity, especially if you’re otherwise stuck on a long trip with a tiny laptop display. The good news is that you may already own an external monitor without even knowing it. iPad apps let you turn your tablet into a second display, but few function as well as a dedicated external monitor, with the exception of Duet Display.

Duet was designed by former Apple engineers, and it definitely shows. Many other apps connect to your laptop over WiFi, but Duet draws power and the video signal over USB. The result is a sharp picture with very little lag, though you might notice a slowdown with older computers. Your laptop battery will also take a big hit (it’s powering the iPad), so you’ll want to be plugged in whenever possible. You can save some juice by using your iPhone instead, though you’ll obviously have less screen real estate in that case.

Duet's external-display app for iPad and iPhone now supports Windows 7 and Windows 8.
Duet’s external-display app for iPad and iPhone now supports Windows 7 and Windows 8.

All that aside, whether you’re working from a cubicle or under an umbrella on your overwater villa, Duet can’t be beat. You could even use your iPad as an external monitor on a long-haul flight, though your neighbor might not be thrilled about your mobile workstation if you’re stuck back in coach (we’d recommend booking something like this instead). Another handy feature: You can use your iPad’s touchscreen like a mouse, though I’ve found that to be a bit of a struggle, especially in high-resolution mode (on Retina iPads), where anything I want to tap appears quite small.

As of today, Duet now supports Windows 7 and Windows 8, so you can use your iPad as an external monitor with any recent Windows computer. The Duet folks say that covers about 80% of Windows machines, and they expect to support Windows 10 on launch day. The other good news is that Duet is only $10 in the App Store if you buy today (I paid $15.99, which is still a steal).

Chase Sapphire Preferred® Card

Even after the introduction of the Chase Sapphire Reserve, the Chase Sapphire Preferred is still a fantastic choice if you want to avoid the Reserve’s $450 annual fee, earn 2x on all travel & dining and earn a 50,000 point sign up bonus.

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More Things to Know
  • Earn 50,000 bonus points after you spend $4,000 on purchases in the first 3 months from account opening. That's $625 toward travel when you redeem through Chase Ultimate Rewards®
  • Named Best Credit Card for Flexible Travel Redemption - Kiplinger's Personal Finance, July 2016
  • 2X points on travel and dining at restaurants worldwide & 1 point per dollar spent on all other purchases.
  • Earn 5,000 bonus points after you add the first authorized user and make a purchase in the first 3 months from account opening
  • No foreign transaction fees
  • 1:1 point transfer to leading airline and hotel loyalty programs
  • Get 25% more value when you redeem for airfare, hotels, car rentals and cruises through Chase Ultimate Rewards. For example, 50,000 points are worth $625 toward travel
  • No blackout dates or travel restrictions - as long as there's a seat on the flight, you can book it through Chase Ultimate Rewards
Intro APR on Purchases
N/A
Regular APR
16.49% - 23.49% Variable
Annual Fee
Introductory Annual Fee of $0 the first year, then $95
Balance Transfer Fee
5.00%
Recommended Credit
Excellent Credit

Editorial Disclaimer: Opinions expressed here are author’s alone, not those of any bank, credit card issuer, airlines or hotel chain, and have not been reviewed, approved or otherwise endorsed by any of these entities.

Disclaimer: The responses below are not provided or commissioned by the bank advertiser. Responses have not been reviewed, approved or otherwise endorsed by the bank advertiser. It is not the bank advertiser’s responsibility to ensure all posts and/or questions are answered.