By Drew FitzGerald 
 

Buried behind the massive screen and eye-grabbing software on Samsung Electronics Co.'s (SSNHY, 005930.SE) latest smartphone lies a more mundane improvement that smartphone owners use almost all the time: faster Wi-Fi.

The new wireless standard, called 802.11ac, earned only passing mention Thursday at the unveiling of Samsung's Galaxy S4--company representatives spent more time showing off the handset's flashier features, such as eye-tracking technology and a 13-megapixel camera--yet the latest Wi-Fi will offer consumers a taste of new technology that's almost certain to pop up in more smartphones this year.

With speeds as fast as 1.3 gigabits per second in some settings, the new Wi-Fi standard can download information three times faster than handsets available today can. Most wireless chips now entering the market won't reach that theoretical limit, though devices using the technology will still be able to stream high-definition video in real time, according to chip maker Broadcom Corp. (BRCM).

Other hurdles exist in the adoption of the new Wi-Fi, such as smartphone users needing to upgrade their home routers. Also, the new Wi-Fi uses a higher frequency that doesn't travel as far, so the technology's backers tend to tout the standard for the living room and other intimate settings where data takes a shorter trip, rather than in more public areas.

On the plus side, the new Wi-Fi sits on a less-crowded slice of the wireless spectrum, avoiding interference from devices like Bluetooth headsets and microwave ovens that share space with existing Wi-Fi devices. Some devices with more than one antenna also can transmit legacy Wi-Fi data in a separate stream--allowing a smartphone user to stream video to a TV screen a few feet away while simultaneously downloading music from the Internet, for instance.

The new standard "addresses a lot of issues, mainly on the infrastructure side," Wunderlich Securities analyst William Harrison said. "Basically, the amount of data traversing through the home today is taxing prior generations" of equipment.

Wireless service providers continue to invest billions of dollars to upgrade their cellular networks, yet their customers still rely on Wi-Fi to move big chunks of information that cellular networks are too crowded to handle. The average consumer moves about 55 megabytes of data over Wi-Fi each day, more than four times the amount carried by cellular networks, according to a recent report from Cisco Systems Inc. (CSCO). If not for Wi-Fi, users would simply download less content because of clogged cellular service and the caps and cost on its usage.

HTC Corp. (HTCXF, 2498.TW) introduced the new Wi-Fi standard to the mobile market last month when it unveiled its flagship HTC One, another smartphone that uses Google Inc.'s (GOOG) Android operating system.

Broadcom, which supplied the One's wireless chip, gave the technology a consumer-friendly "5G" moniker--playing off the 4G cellular standard supplied by most phone carriers.

Most network gear makers already offer routers with 5G Wi-Fi, and a new laptop from Asustek Computer Inc. (ASUUY, 2357.TW) supports the standard.

Bob Rango, general manager of Broadcom's mobile and wireless group, declined to say whether Broadcom supplied Samsung's newest Galaxy phone, though he said the new Wi-Fi standard is spreading more quickly among manufacturers than its main predecessor, 802.11n.

"It shows that one of the world's premier superphones sees the value of this new standard," he said.

Write to Drew FitzGerald at andrew.fitzgerald@dowjones.com

Subscribe to WSJ: http://online.wsj.com?mod=djnwires