Latest Lumia Smartphone: High Quality, but It’s Heavy

Nokia’s new Lumia 920 smartphone is a quality phone with attractive features and twice the typical memory, but it is thick and heavy.
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Nexus 4 Is a Great Value With Small Improvements

Google’s new Nexus 4 Android smartphone has some nice features and an attractive price tag, but the improvements are modest.
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The iPhone Takes to the Big Screen

The world’s most popular smartphone becomes significantly faster, thinner and lighter this week, while gaining a larger, 4-inch screen.
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Alternatives to the iPhone

Walt answers a reader’s question on an alternative to the iPhone.

It’s Big, It’s Blue, It’s Windows, but Can It Beat Rival Phones?

Nokia’s Lumia 900 is an improved version of a Windows phone, but it has some flaws.
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Is the iPhone 4S Really 4G?

Walt answers a reader’s question on why the iPhone 4S sometimes indicates it’s on 4G.

4G or Not 4G: A Guide to Cut Through All the “Fast” Talk

Walt cuts through all the confusion about 4G data networks.
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Walt Mossberg and Lauren Goode Talk New iPad on WSJ Digits

Major topics: The new iPad’s outstanding features, such as the display, the connection speed and the battery life.
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Mobile Device That’s Better for a Jotter Than a Talker

Walt tests the Samsung Galaxy Note, a phone-tablet hybrid with a large screen that uses a stylus as well as your fingers.
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Track Changes on an iPad

Walt answers a reader’s question on whether a new Microsoft Office app for the iPad tracks changes.

Year of the Talking Phone and a Cloud That Got Hot

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Verizon’s LTE Network for Voice

Verizon’s ThunderBolt Moves Like Lightning

In 4G Race, Verizon Pulls Ahead With Pricey Speed

Carriers Go to Battle Over Faster Networks