GSM
Mobile

CDMA vs. GSM: What’s the difference between these cellular standards?

If you're in the market for a new smartphone or carrier, you've likely encountered the acronyms CDMA and GSM before. Check out our brief explanation on the two wireless standards covering their availability and functionality.
Mobile

T-Mobile and Ericsson hope to ditch 2G/3G, switch to gigabit LTE by 2019

T-Mobile wants to leave the past in the past, and that includes 2G and 3G networks. At an Ericsson press conference during Mobile World Congress, T-Mobile CTO Neville Ray spoke of T-Mobile's all-LTE future.
Mobile

Will that unlocked phone work with your wireless carrier? Here’s how to tell

There are many benefits to buying your smartphone unlocked, but it can be hard to tell which carriers' networks are supported by unlocked phones. Here's everything you need to know about which bands work on which networks.
Mobile

Lunecase uses excess iPhone energy to light LED notifications on case

Potentially useful when you need to keep an eye on your iPhone's notifications, the Lunecase provides visual notifications for calls and texts on the back of the case all powered by existing electromagnetic energy.
Android Army

HTC Deluxe could be the Droid DNA’s cousin, ready and waiting for a global release

Now that the Droid DNA has been announced for Verizon, attention has turned to an international version, and a leaked photo showing a phone named the HTC Deluxe, could be evidence its release isn't far away.
Android Army

What the T-Mobile and MetroPCS merger means for you

T-Mobile and MetroPCS are merging to expand spectrum holdings and network coverage. What do current (and future!) customers get out of it?
Mobile

Researcher claims all GSM phones vulnerable to hijacking

Security expert Karsten Nohl says all GSM phones are potentially vulnerable to eavesdropping and hijacking that would enable attackers to send texts or make calls.
Mobile

Why Africa has NFC-free mobile payments today, and we’re still waiting

Visa's new prepaid mobile payment service lets people pay each other, buy and sell online, and spend money anywhere that accepts Visa - and it doesn't need a smartphone. Could this work in the U.S.?
Apple

Sprint, Verizon to unlock iPhone 4S SIM for international use [update – Sprint says no unlock]

Sprint and Verizon will reportedly remove their carrier locks from the iPhone 4S, allowing users to easily (and more cheaply) use their device in other countries.
Emerging Tech

Bulletproof vests upgraded with GPS, impact sensors to alert team

Taking a step beyond simply protecting a human from weapon fire, a new advancement from Laipac Technology will help locate injured soldiers and police officers after being fired upon.
Emerging Tech

Men build small flying spy drone that cracks Wi-Fi and cell data

The safety of Wi-Fi networks may be in danger from small threats flying above us. An airplane hobby shop owner and an ex-Air Force official team up to create a drone that cracks into Wi-Fi and cell phones.
Mobile

Unlocked iPhone now on sale, starting $649 price tag for 16 GB model

Apple officially starts selling unlocked GSM iPhone 4s on its website, with 16 GB models available for $649 and 32 GB models available for $749.
Apple

Rumor: iPhone 4S coming this summer?

We've been teased by iPhone release dates before, usually when they are announcing a delay. Now, we're hearing the next handheld device could be here ahead of schedule.
Android Army

Droid 3 spec rumors surface

In more good news for Android enthusiasts, the Droid 3 could be here as soon as June and will improve on its predecessor's QWERTY keyboard.
Apple

Verizon drops unlimited plans, offers iPhone 5 details

We knew it was coming: Verizon joins rival AT&T and kills off its unlimited data plans.
Apple

Apple iPhone for T-Mobile USA allegedly in the works

Rumor has it that the Apple is currently testing its popular iPhone device for the T-Mobile USA network -- and there are pictures to back it up.
Apple

New study finds Verizon iPhone is slower than AT&T iPhone for data downloads

A comprehensive study finds that Verizon's iPhone not only under-performs in data download speeds when compared to AT&T's, but is also slower than other devices on Verizon's own network.
Apple

Verizon iPhone teardown reveals dual-mode GSM-CDMA potential, sparks ‘world phone’ iPhone 5 talk

Teardowns of the Verizon iPhone 4 show that the device could work with both GSM and CDMA networks, revealing concrete potential for a "world phone" iPhone 5.