Lenovo Ideapad Miix 520 review: A superb Windows tablet with subpar battery life

The combination of price and performance still raises the it above the pack.

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While Lenovo projects up to 7.5 hours of life from the 38Whr supply, we got only 5.5 hours in our video rundown test. The higher resolution of the display likely played a role. Optimists will recognize that a 5.5-hour battery life might just see a traveler through a cross-country flight. Still, this is an abysmal time compared to similar Windows tablets, and an area where Lenovo must improve.

Lenovo Miix 520 battery life IDG

Clearly, battery life is the Miix 520’s Achilles heel. You can blame the display for some of that.

Conclusion: one of the best Windows tablets

The name “Lenovo,” to me, still implies thin black slabs of productivity. And while it’s true that the Miix 520 never aspires to be flashy, it’s an unobtrusive Windows tablet that sparkles with the occasional flash of luxury. 

More practical considerations recommend the Miix 520, though: a rich, er, mix of features at an accommodating price. If you’re going to be out and about for several hours or on a plane to Taiwan, though, consider an alternative that will remain powered up for the duration of the flight—either the Samsung Galaxy Book, or our other top contender, the pricier HP Spectre x2. And we may still see future, as-yet-unreleased tablets get it all right.

Battery life aside, I was surprised at how much I liked the Miix 520. It delivers enormous bang for the buck, and clearly should rank among the top choices for your next Windows tablet.

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At a Glance
  • Lenovo's IdeaPad Miix 520 is an outstanding Windows tablet in terms of price and performance, held back only by shorter-than-expected battery life.


    • 8th-gen Core chip delivers outstanding performance
    • Excellent value for the money
    • Comfortable, sturdy typing experience
    • 1920x1200 display is higher-res than average


    • Battery life falls far below the competition
    • Pen holder blocks a USB port
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