The ubiquity of mobile phones is a defining feature of the 21st century, but it's been possible to place a phone call on the go since shortly after World War II.

The low-cost PinePhone isn’t a perfect device, but the nuanced ecosystem it’s going to build for Linux-based smartphones is going to be amazing.

An inexpensive phone that’s ready for the next few years.

Privacy experts worry the convenient feature will open the door to surveillance, data tracking and Apple's turning interactions involving state-issued IDs into a new revenue stream.

All of the key animations and apps work from 10 years ago.

Pixel, fold?

Technology is overwhelming and making decisions about what gadget to buy is harder than ever. WSJ personal tech columnist Joanna Stern makes it all a bit easier in her lively and informative videos.

Some quick tests as Google ends its free storage offer.

Arizona’s attorney general sued the company last year

A change of plans.

WhatsApp's has had a few eventful months following the introduction of an updated privacy policy back in January. The Facebook-owned messaging service

Filming the police is an incredibly important right protected by the First Amendment. In our woefully imperfect system, it is an essential tool in keeping citizens safe and holding law enforcement accountable for their actions.

There are new features, but it’s the biggest design update in years.

When Apple introduced the notch on the iPhone X a few years ago, it was a controversial design choice, to say the least. Many at the time, myself included, were quick to categorize the notch as unsightly, user-unfriendly, and a distraction. But as bold design choices tend to go, it wasn't long before most people became acclimated to the notch.

A UCL study has found people around the world feel the same about their devices as they do about their homes

Google only recently redesigned the Play Store, getting rid of the hamburger menu and moving most of its menu entry to the account switcher in the top

Google can listen to you pronounce a name and learn from it.

To be more energy efficient, many people have replaced their incandescent lights with light-emitting diode (LED) bulbs. However, those currently on the market emit a lot of blue light, which has been linked to eye troubles and sleep disturbances. Now, researchers reporting in ACS Applied Materials & Interfaces have developed a prototype LED that reduces -- instead of masks -- the blue component, while also making colors appear just as they do in natural sunlight.

No more green bubbles.

New analysis shows that facial recognition and other biometric authentication technologies will increasingly help to keep mobile payments safe from fraudsters.