MacRumors

Apple this afternoon shared three new ads on its YouTube channel, all of which are quick clips that focus on select iPhone X features like Portrait Lighting and Face ID.

The first video, "Opens with a Glance," displays the iPhone X with the words "Introducing the most unforgettable magical password ever created. Your face," before showing off a series of faces to demonstrate how the iPhone X can be unlocked with facial recognition.

A second video, "Adapts to Your Face," was previously available on Apple's Canadian YouTube channel. It's designed to highlight the machine learning techniques used to allow Face ID to adapt to beards, hats, sunglasses, and other facial changes.

The third video, "Introducing Portrait Lighting," demonstrates the Portrait Lighting feature that's available on the iPhone X. Portrait lighting is designed to allow users to adjust the lighting in an image using depth mapping techniques, and it is also available on iPhone 8 Plus.

Today's iPhone X videos follow several iPhone X feature ads that Apple shared in late November. Those previous videos focused on Face ID and Animoji, demonstrating specific Face ID features like its ability to work in the dark and adapt to makeup.

Apple will use these short 15-second ads to show off iPhone X features on television, on the web, and on social networks like Instagram.

American Express today announced plans to eliminate signature requirements when customers make credit or debit card purchases, joining both Mastercard and Discover.

All three companies plan to stop asking customers to provide a signature when making a purchase in the United States and Canada starting in April of 2018. The change is designed to allow for a more consistent, streamlined, and speedy checkout experience for both merchants and cardholders.

Credit and debit card companies have long required signatures for purchases as an added security measure, but with technology improvements that include contactless payments and the adoption of EMV chip technology, signatures are no longer a necessity.

"The payments landscape has evolved to the point where we can now eliminate this pain point for our merchants," said Jaromir Divilek, Executive Vice President, Global Network Business, American Express. "Our fraud capabilities have advanced so that signatures are no longer necessary to fight fraud. In addition, the majority of American Express transactions today already do not require a signature at the point of sale as a result of previous policy changes we made to help our merchants."

American Express has already phased out signature requirements for purchases under $50 in the United States, as have other credit card companies, and the complete elimination of the signature is a shift that consumers are likely to welcome.

Doing away with signature requirements for credit and debit card transactions will also streamline the Apple Pay process in the United States when using a Mastercard, Discover, or American Express card. With Apple Pay, a signature can on occasion be required for purchases over $50 in the United States, a step that may be eliminated once the card changes are introduced.

Apple Pay customers in other countries that have similar restrictions may also see them lifted when using American Express, but there are locations like Canada where contactless payments are not permitted for large purchases. In these situations, there will be no improvements to the Apple Pay process.

While Mastercard and Discover have said the change applies to the United States and Canada, American Express plans to eliminate signature requirements globally on purchase transactions of all amounts. Merchants are, however, still able to collect signatures if required to do so by an applicable law in a particular jurisdiction.

Apple today seeded the first beta of an upcoming macOS High Sierra 10.13.3 update to developers, less than one week after releasing the macOS High Sierra 10.13.2 update, the second major update to the macOS High Sierra operating system.

The macOS High Sierra 10.13.3 beta can be downloaded from the Apple Developer Center or through the Software Update mechanism in the Mac App Store with the proper profile installed.

It's not yet clear what improvements the third update to macOS High Sierra will bring, but it's likely to include bug fixes and performance improvements for issues that weren't addressed in macOS High Sierra 10.13.2.

The previous macOS High Sierra 10.13.2 update focused solely on security fixes and performance improvements, with no outward-facing changes introduced.

Update: Apple has also seeded the macOS High Sierra 10.13.3 update to public beta testers.

Apple today announced it has agreed to acquire music recognition service Shazam, marking the company's highest-profile purchase since it acquired headphone maker Beats for $3 billion in May 2014.

Apple did not disclose financial terms this time, but when TechCrunch broke news of the acquisition plans last week, one of its sources said the deal could be worth around $400 million. Shazam was valued at $1 billion in January 2015.

Apple confirmed the acquisition plans in a statement provided to MacRumors and several other media outlets today:

We are thrilled that Shazam and its talented team will be joining Apple. Since the launch of the App Store, Shazam has consistently ranked as one of the most popular apps for iOS. Today, it's used by hundreds of millions of people around the world, across multiple platforms. Apple Music and Shazam are a natural fit, sharing a passion for music discovery and delivering great music experiences to our users. We have exciting plans in store, and we look forward to combining with Shazam upon approval of today's agreement.

Shazam issued the following statement:

We are excited to announce that Shazam has entered into an agreement to become part of Apple. Shazam is one of the highest rated apps in the world and loved by hundreds of millions of users and we can't imagine a better home for Shazam to enable us to continue innovating and delivering magic for our users.

Shazam is a popular service that can identify the name and lyrics of songs, music videos, TV shows, and more. The company has standalone iPhone, iPad, Mac, and Apple Watch apps, while the service is also built into Siri on iOS 8 and later.

Shazam is integrated with Apple Music, allowing subscribers to identify a song and then tap to play it directly via the streaming music service. Shazam also has an iMessage app for identifying and sharing songs in the Messages app.

Shazam isn't just a big part of Apple. The service is built into Snapchat, allowing users to recognize, discover, and share music with friends. In the app, simply press and hold on the camera screen to identify a song with Shazam.

In September 2016, Shazam announced that its mobile apps had been downloaded more than 1 billion times since launching. Shazam released its original iPhone app when the App Store launched in 2008.

Shazam's machine learning algorithms used to identify audio clips, and its augmented reality feature that enables users to discover content based on pictures captured with its app, could be valuable technologies to Apple.

Apple said it is not disclosing further details at this time, so we'll have to wait and see exactly how it uses Shazam's technologies and talent.

Sprint customers with an iPhone are widely reporting that Wi-Fi calling does not work after installing iOS 11.2 and carrier settings version 31.0.

Hundreds of complaints have surfaced across the web, including the MacRumors discussion forums, Sprint and Apple Support Communities, Twitter, and Reddit, since the software update was released earlier this month.

All models of the iPhone that support Wi-Fi calling appear to be affected, ranging from the iPhone 6 to iPhone 8 Plus, among others.

It's unclear if the issue is due to iOS 11.2 or the updated carrier settings, which support features like Wi-Fi calling and VoLTE. AT&T, Verizon, and T-Mobile customers are not affected, suggesting this is a carrier-specific problem.

Many affected customers have performed basic troubleshooting, such as resetting the iPhone's network settings or simply turning the device off and on again, but there doesn't appear to be a solution that works on iOS 11.2.

As a temporary workaround, some users have downgraded to iOS 11.1.2 and found that Wi-Fi calling becomes functional again.

MacRumors does not have an iPhone on the Sprint network in its possession, so we're unable to reproduce the issue. Sprint directed us towards Apple, which has not responded to multiple requests for comments over the past few days.

Last week, a support representative on Sprint's website relayed that the carrier plans to apply a temporary fix across a limited number of Wi-Fi calling servers while evaluating a long-term solution to the apparent bug. After several days, however, Wi-Fi calling is only working intermittently at best for some customers.

Apple also appears to be collecting data from affected customers who contact the company so that its engineers can investigate the matter, as it routinely does with any potential hardware or software issues.

For those unaware, with Wi-Fi calling, you can make or receive a phone call if you have a Wi-Fi connection in an area with little or no cellular coverage. The feature can be enabled in Settings > Phone > Wi-Fi Calling.

Update: Sprint says it is "actively working to resolve this" issue. A company representative said Sprint will "implement some additional changes" on late December 11 to increase Wi-Fi calling capacity. "This should get us to the optimal performance that is expected," the employee wrote.

Update 2: Sprint issued a carrier update that appears to solve the Wi-Fi calling issue for most Sprint users.

An unofficial iOS app for MyEtherWallet.com rose to the top of the App Store over the weekend, nabbing the third spot in the Finance category after being on the storefront for a little over a week (via TechCrunch). MyEtherWallet.com is a popular service made for storing cryptocurrencies but it doesn't have an official iOS app, so the company tweeted out a warning for users to not be fooled by the "MyEtherWallet" iOS app, as well as asking for Apple to remove it from the App Store.

At the time of writing, MyEtherWallet still remains at #3 on the App Store's Finance chart. The app lists its developer as Nam Le, who has two other iOS apps -- "Panda Warrior: Kung Fu Awesomeness" and "Mr. Beard: Icehole Fishermans" -- and one Apple Watch app called "Wrist Count." MyEtherWallet costs $4.99 and its App Store page says that it allows users to anonymously manage their ethereum wallets, create wallets offline, and store wallet keys securely inside their iPhone.

As the company's mission statement explains, MyEtherWallet.com is a "free, open-source, client-side interface for generating Ethereum wallets & more," so the fake app's $4.99 price tag raises legal questions in addition to the questions of how it got past Apple's app review process in the first place. Tracking service Apptopia told TechCrunch that the app's week-long existence on the App Store has seen around 3,000 downloads so far. Apple has yet to comment on the unofficial app's existence and if it will be allowed to remain on the App Store.

Apps for buying and selling cryptocurrency have become popular recently, with one called "Coinbase" -- this one official -- rising to become the #1 most downloaded free app in the United States iOS App Store last week. This happened after the price of bitcoin rose past $17,000 and saw a price jump of over 20 percent in one day. As the app climbed the App Store charts amid the bitcoin frenzy, Coinbase servers crashed for much of last Thursday, affecting both its website and the iOS app's performance.

Update: Apple appears to have pulled the app from the App Store.

A Reddit post over the weekend has drawn a flurry of interest after an iPhone 6s owner reported that a battery replacement significantly increased the device's performance running iOS 11. The ensuing discussion thread, also picked up by readers in the MacRumors forum, has led to speculation that Apple intentionally slows down older phones to retain a full day's charge if the battery has degraded over time.

According to TeckFire, the author of the original Reddit post, their iPhone had been very slow after updating to iOS 11, especially compared to their brother's iPhone 6 Plus, so they decided to do some research with GeekBench and battery life apps, and ended up replacing the battery.

Wear level was somewhere around 20% on my old battery. I did a Geekbench score, and found I was getting 1466 Single and 2512 Multi. This did not change wether I had low power mode on or off. After changing my battery, I did another test to check if it was just a placebo. Nope. 2526 Single and 4456 Multi. From what I can tell, Apple slows down phones when their battery gets too low, so you can still have a full days charge.

Just over a year ago, Apple launched a repair program for iPhone 6s owners after some users reported their devices were unexpectedly shutting down. Apple said the problem was down to a manufacturing issue affecting a "very small" number of iPhone 6s devices, and offered battery replacements free of charge to owners of devices within a limited serial number range.

Around two months later, Apple released iOS 10.2.1 and said the update resulted in an 80 percent reduction in unexpected shutdowns on iPhone 6s and a 70 percent reduction on iPhone 6 devices. However, Apple explained this was about fixing a more widely reported issue caused by uneven power delivery from older batteries, and claimed it was separate from the manufacturing fault that had caused it to recall a select number of iPhone 6s devices.

This weekend's Reddit thread – running to over 500 comments as of writing – appears to have kicked off a wave of speculation about whether the two shutdown issues are in fact related, and that Apple's fix involves dynamically throttling the phones' maximum clock speeds relative to battery output (voltage), to prevent them from drawing too much power and shutting down.

Reports that the performance of iPhone 6 series models can be improved by replacing the battery aren't entirely new, but the suggestion that Apple is intentionally throttling the performance of older devices, for whatever reason, is bound to cause controversy. We've contacted Apple for comment or clarification.

In the meantime, users interested in checking their phone's performance are also using the free CpuDasherX app to compare running clock speeds (a factory iPhone 6s comes in at 1,848MHz, for example). Let us know your findings in the comments below. Lastly, it's worth noting that DIY iPhone battery replacements or repairs performed by a third party will void any Apple warranty still covering said devices.

iPhone X shipping estimates continue to improve on Apple's online store amid the busy holiday shopping season.

Apple's flagship smartphone is now available for delivery within two to four business days on average in the United States, meaning that online orders placed today will arrive at your doorstep by Wednesday to Friday.

The improved timeframe applies to most AT&T, Verizon, Sprint, and SIM-free iPhone X models, while T-Mobile variants are estimated for delivery by December 19, or roughly six business days from today.

The same two to four day delivery estimate is quoted in several other countries where the iPhone X is sold, including Australia, Germany, and the United Kingdom. Elsewhere, December 19 is a common estimate.

iPhone X inventory continues to improve at Apple retail stores around the world as well, with pickup available today in many locations.

Shortly after iPhone X pre-orders began on October 27, shipping estimates for the device extended to 5-6 weeks around the world, but Apple has been able to improve supply earlier than some anticipated.

According to KGI Securities analyst Ming-Chi Kuo, the improved iPhone X shipping estimates are due to better-than-expected improvements in production, rather than a lack of demand for the new device.

All in all, if you are looking to purchase an iPhone X in time for Christmas, there is still some time on your side. If you're debating between buying an iPhone X, iPhone 8, or iPhone 8 Plus, read our comparison guide.

The iPhone X has been available for a little over a month now, which has given consumers time to adjust to the new biometric authentication method, Face ID. Face ID replaces Touch ID, unlocking the iPhone X via a face scan rather than a fingerprint.

In the video below, we decided to take a second look at Face ID after having spent some time with it to see how it measures up to Touch ID and how it compares to similar facial recognition options in devices like the OnePlus 5T.

For the most part, Face ID works well and is at least as quick as Touch ID, but there are some undeniable pain points. When the iPhone X is held in landscape mode, like when you're in bed, Face ID often doesn't work. It can also have trouble when it's flat on a surface and can't get a good read on your face, and when you have sunglasses, a hat, or a scarf covering your face, it can be hit or miss at times.

These points of failure don't apply to some of the other smartphones that use facial recognition techniques. The OnePlus 5T, like devices with facial recognition from Samsung, uses multiple biometric systems with facial recognition paired with a fingerprint sensor.

Face ID is, however, in most ways superior to the facial recognition options used by competing devices, simply because it offers more security. Face ID is using 3D depth sensing with an infrared camera and a dot projector, while companies like OnePlus and Samsung are using 2D methods that rely solely on the front-facing device camera.

Without 3D depth mapping, the OnePlus 5T's Face Unlock feature can be faster than Face ID, but it doesn't work in low light, unlike Face ID, which can work in almost all lighting conditions. It's also more of a convenience feature than a security feature and it's not used for authenticating passwords or mobile payments.

KGI Securities analyst Ming-Chi Kuo has said Face ID is years ahead of similar facial recognition techniques from Android smartphone makers, and that's evident in the functionality divide between the OnePlus 5T and the iPhone X.

Still, some people are having trouble adjusting to Face ID and miss the convenience of certain Touch ID features, like being able to unlock the iPhone regardless of its position.

Love it or hate it, Face ID is here to stay. Rumors already suggest Face ID will roll out to the 2018 iPhones, and we're also hearing that Face ID will expand to additional devices like the iPad Pro in the future.