The Nokia Lumia 635 is a successor to 2013's super-popular Lumia 620 model. This new handset is an improvement in nearly every way. Microsoft's first release has a great-looking 4.5-inch touchscreen, a speedy quad-core Qualcomm 400 processor, a new, squared-off design and its the first device to run on Windows Phone 8.1. The new operating system improves many things, most important of which were the long-standing complaints about short battery life. When put to the test, the new Windows phone provided more than a day of heavy use on a full charge. There is also Cortana. Think of it as Microsoft's version of the "OK Google" or Siri. TheStreet's Technology Contributor Gary Krakow has details.

More from Video

Stock Market Just Took Another Beating -- Here's What You Need to Know

Stock Market Just Took Another Beating -- Here's What You Need to Know

This Is What's Hot Thursday - Stocks Slide, Intel's CEO Woes & Major Movers

This Is What's Hot Thursday - Stocks Slide, Intel's CEO Woes & Major Movers

Dunkin' Donuts Should Just Sell Itself Already

Dunkin' Donuts Should Just Sell Itself Already

Video: What Oprah's Content Partnership With Apple Means for the Rest of Tech

Video: What Oprah's Content Partnership With Apple Means for the Rest of Tech

Intel CEO Out After Past Relationship With Staffer - Why Stock Is Now in Play

Intel CEO Out After Past Relationship With Staffer - Why Stock Is Now in Play