NEW YORK — LG has unveiled a smartphone that it promises will be simpler for people to use.

The new G3 phone stands out in having a high-resolution display that has 538 pixels per inch. Other leading phones are in the 300-pixel range, with a handful reaching the 400s. The G3's display measures 5.5 inches diagonally.

The G3 also promises fast auto-focusing on its 13-megapixel camera and the ability to unlock phones not with passcodes but a pattern of taps on the screen. It also promises a keyboard that is easier to type on.

LG said the phone will be available in the U.S. this summer through all major wireless carriers. Prices weren't announced.

Many of the innovations in the G3 are familiar. For instance, it offers a way to protect certain content when lending a phone to others. Samsung's new Galaxy S5 phone has a similar feature.

The South Korean company has had trouble getting noticed for its smartphones in a market dominated by Samsung and Apple. Last year's G2 phone got little attention.

SAN FRANCISCO — Spotify is requiring people listening to its popular music service on Android devices to install new software as a safeguard against a recent security breach.The break-in so far has only resulted in unauthorized access to one user's account, according to a Tuesday disclosure posted online by Spotify's chief technology officer.Spotify has more than 40 million users. A substantial number rely on Android, the world's most popular mobile operating system. Spotify users streaming on iPhones, iPads and Windows devices don't have to upgrade at this time.Some users will be required to re-enter their passwords. And Android device users prompted to upgrade their Spotify application may have to deal with another headache: All previously saved offline playlists must be downloaded again.