• A man photographs the LG G Flex 2 during a media preview before CES International Sunday, Jan. 4, 2015, in Las Vegas. The phone has a curved screen, as the name implies.(AP Photo/John Locher)

    A man photographs the LG G Flex 2 during a media preview before CES International Sunday, Jan. 4, 2015, in Las Vegas. The phone has a curved screen, as the name implies.(AP Photo/John Locher) (The Associated Press)

  • The LG G Flex 2 smartphone is displayed during a media preview before CES International Sunday, Jan. 4, 2015, in Las Vegas. (AP Photo/John Locher)

    The LG G Flex 2 smartphone is displayed during a media preview before CES International Sunday, Jan. 4, 2015, in Las Vegas. (AP Photo/John Locher) (The Associated Press)

  • The LG G Flex 2 during a media preview before CES International Sunday, Jan. 4, 2015, in Las Vegas. (AP Photo/John Locher)

    The LG G Flex 2 during a media preview before CES International Sunday, Jan. 4, 2015, in Las Vegas. (AP Photo/John Locher) (The Associated Press)

New phones with curved screens, scratch-proof backs, new smart-home devices

Technology Associated Press

LG is unveiling a new curved smartphone at CES. The International CES show in Las Vegas this week isn't typically a major forum for mobile products, as many manufacturers wait a month or two for the Mobile World Congress in Barcelona. But it's hard to separate mobile from other technologies these days.

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That's underscored as everyday products such as cars and home appliances get Internet connectivity. Consequently, many manufacturers promoted their mobile products and smart-home developments alongside new televisions and other traditional consumer electronics. Here are the highlights of those announcements Monday.

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ALL IN THE SCREENS:

LG's new G Flex 2 has a slightly curved screen, as the name implies. LG says that makes phones easier to hold and the display easier to read. Even more notable is the fact that LG is also making the Flex 2 smaller than its predecessor, countering a trend toward bigger and bigger phones.

LG says it got complaints that the previous, 6-inch version felt too big. The new one will be just 5.5 inches, which LG considers the "sweet spot" for smartphones. That's the same screen size as Apple's new iPhone 6 Plus, though it's actually slightly shorter when placed side by side.

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LG is also making the back of its new phone "scratch-proof" by adding self-healing properties. Scratch or nick it under normal use, and the mark disappears in seconds. The screen itself isn't scratchproof, but LG says it's more durable than usual with a special chemical layer applied to Corning's Gorilla Glass.

The Flex 2 has improved screen resolution over the original Flex, at 1080p high definition, though that's still behind LG's G3 in sharpness. The Flex 2 also introduces some selfie features and a way to quickly check the time and notifications without turning the entire screen on.

Curved-screen phones remain a niche product, and LG doesn't expect to ship as many Flex 2 phones as its flat G3 smartphone. A price hasn't been determined, but it's expected to be more than the G3 and other high-end phones, which typically cost $600 to $700 without a two-year contract.

Meanwhile, Sharp plans to release a 5-inch frameless phone — the screen goes right to the edge. It actually uses an optical-lens trick to make the front panel appear to extend to the edge. Magic or not, the trick keeps the overall phone smaller.

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LET'S ALL GET ALONG:

Many of the smart-home products out so far haven't been that smart in the sense they communicate only with their own app and products from the same manufacturer. That's starting to change.

AT&T, for instance, said its Digital Life home-security and automation system will soon work with products from Samsung, Qualcomm, LG and Lutron. AT&T's app, for instance, will be able to control Lutron window shades and Samsung's security cameras, while consumers will be able to see on the LG TV that someone is at the door.

AT&T officials say that such collaborations are needed to drive greater adoption.

Other companies are using CES to showcase compatibility with Google's Nest smart thermostat and Apple's HomeKit — two of the emerging hubs for controlling the smart home. That will allow a new Whirlpool dryer to run slower and save energy, for instance, when Nest senses that no one's home.