A closer look at Vivo’s all-glass, port-free concept 5G phone

Picture this: you’re holding two glossy all-glass concept phones for a photo, then one slips off and shatters another unit on the table. The room goes quiet. Everyone looks on in awe. You are left red-faced not because you broke a phone, but because you broke one of the few rare units in existence. That was exactly what happened to me at yesterday’s Vivo APEXevent in Hong Kong.

To jog your memory, APEX is Vivo’s line of concept phones, with the edition that was announced earlier this year being its second model. The pitch? It was some crazy all-glass “Super Unibody” sans buttons nor ports, and boy did it look slick in the press shots. It wasn’t until yesterday — weeks after MWC wrapped — when I finally got to hold a unit in my hands. Just as I was starting to appreciate the premium feel of this rare device, though, my unit slipped off my hand and destroyed another APEX in a display case, an accident for which I apologized profusely.

To be fair, most glass phones would be unlikely to survive the impact of another phone landing on a corner. And yet, the fallen APEX remained intact, which suggests the “G2 curved-surface waterdrop glass” does serve its purpose. Specifically, the glass thickens around the phone’s bezel, hence the waterdrop shape in a cross-section. Still, such protection comes at a cost: it requires a complex process combining hot-bending techniques and CNC glass shaping methods.

Seemingly unfazed by the damaged prototype, product manager Ding Guanli told Engadget that there’s a good chance that Vivo will mass-produce an all-glass device like this. Given the unfortunate incident, Ding assured me that the mass-produced version will somehow be more resilient to external impact. Fragility aside, the APEX still serves its purpose of showcasing Vivo’s main areas of interest when it comes to future mobile tech. Or as the exec put it, “we want to do something that hasn’t been done before.”

This Android Pie device has a Qualcomm Snapdragon 855 chipset, 5G radio, 12GB of RAM, 512GB of storage space and 12MP/13MP dual rear cameras, but none of that matters. It’s more about the list of “firsts” here, including the lack of ports and physical buttons; then in-display dual-fingerprint reader covering the entire FullView screen; the “MagPort” connector on the back to replace the conventional USB port; and “Body SoundCasting Technology” taking the place of conventional speakers.

Save for the 5G connectivity and an eSIM feature which I couldn’t test, those features worked surprisingly well during my hour-long demo. What impressed me most was the new full-display fingerprint scanner, which can read two fingerprints simultaneously anywhere on the 6.39-inch FHD+ AMOLED screen. Better yet, the registration process only required two taps for each fingerprint, which is a huge improvement over the 10-plus taps required on existing phones with similar tech.

Another benefit of having an all-screen in-display fingerprint reader is that you’ll be able to unlock and toggle an app in just one tap. Imagine the screen waking up automatically as you lift the phone, and it shows your favorite apps or shortcuts on the unlock screen, then it’s just a matter of tapping a registered finger onto your desired icon to launch the app right away.

As awesome as this beefed-up in-display fingerprint reader sounds, Ding admitted that this essentially requires an array of optical sensors covering the entire screen, which translates to a notable bump in production cost. As such, there’s no word on when we’ll see this technology baked into a mass-produced smartphone.

I would have also liked to test this new fingerprint reader under varied lighting conditions, mainly because this became a pain point on my OnePlus 6T and Huawei Mate 20 Pro. That said, I’ve been mainly using the NEX Dual Display Edition over the past few days, and its fifth-gen in-display fingerprint reader has so far been a godsend. As such, Vivo likely won’t disappoint when it eventually brings the full-display version to the masses.

The APEX’s seemingly more polished features worked fine too. The three invisible buttons — for volume and power — along the right edge each use a capacitive sensor, but they also rely on pressure sensors for optimal touch sensitivity. It’s a pretty clever solution, and the buttons here were more pleasant to use — though perhaps just a tad too sensitive — than the pressure-sensing ones on the HTC U12+. There’s tactile feedback provided by a linear motor, and whenever the buttons are touched, the screen temporarily shows visual cues to help those who aren’t yet familiar with them.

The MagPort is probably the least exciting feature here, but it’s probably the most practical one as well. Even though we’re now living with the convenience of reversible USB-C plugs, I started growing fond of just casually slapping the magnetic connector onto the pogo pins on back of the APEX — with a near 100-percent alignment success rate as well.

However, the APEX only does a modest 18W charging, and it’s a sub-3,000mAh battery on the inside, but Ding said there’s no stopping them from throwing in something better on a mass-production model. After all, Vivo does have its very own 44W Super FlashCharge tech, as featured on the company’s gaming-centric iQOO range. As to why not use wireless charging here to rid the pogo pins, Ding once again said that it’s all about trying something new; though he also admitted that pins are still required for wired USB data transfer, as there’s no viable wireless alternative at the moment.

Last but not least: audio. The “Body SoundCasting Technology” relies on actuators closely attached to the glass back, so it was no surprise that music sounded crisp when I held up the APEX. It was loud enough, but with a strong treble bias due to the nature of the sounding material. Luckily, I got the full range back when I placed the phone on the table — a bit like the “Boombox Speaker” feature introduced on LG’s G7 ThinQ — and it sounded surprisingly good. At least it did with that one pre-loaded soundtrack on the device.

It’s worth noting that I didn’t get around to trying the APEX’s invisible earpiece. Here’s hoping that it’s much louder than the piezoelectric implementation on Xiaomi’s original Mi Mix, which I struggled to use out on the streets.

And yes, I did notice the baffling absence of the front-facing camera on this APEX. While last year’s model offered a motorized pop-up selfie camera (which has since been trickled down to the NEX and the V15 series), this successor omitted that feature entirely. I grilled Ding on this subject, to which he put on his PR hat and pointed at how Vivo pioneered the pop-up camera, while also toying with dual-screen body along with various notch designs to get around this problem.

When I pushed further, Ding hesitated for a moment, and then dropped an interesting hint with a grin: “There could be other options. You may use your wildest imagination.” Perhaps Vivo has already figured out how to hide the front camera underneath the screen? That would be the holy grail of all-screen smartphone design. But before that happens, I’ll happily take the full-screen fingerprint reader for the time being.

Windows 10 will automatically remove updates, drivers that break booting

Windows appears to be getting a little smarter about updates that go wrong. A newly published support page (spotted by Windows Latest) describes what the operating system does when a recent update causes a boot failure. First, Windows will uninstall the update and revert to a configuration that should work correctly. It will then block the update for 30 days.

The page states that this approach will be taken for both driver updates and the regular monthly Patch Tuesday updates. It’s not unusual for Microsoft to have to issue blocks for these updates to prevent them from being distributed to certain system configurations after problems are found. But this policy allows for more fine-grained blocking, wherein systems will impose a temporary block on themselves should they have to. In most cases, when problems with updates are discovered, they’re fixed and the updates are re-issued within a few days or weeks. So a 30-day block should typically give enough time for the update to be fixed prior to the attempted reinstallation.

It’s not clear if this approach will be used for the twice-yearly feature upgrades or just the regular monthly Patch Tuesday updates. Microsoft’s terminology usually distinguishes between “updates” (which are the things released on Patch Tuesdays) and “upgrades” (which come out twice a year). The description only mentions updates and driver updates. The install mechanism used by upgrades is completely separate from that used by updates, with its own separate rollback logic, so we’d suspect that nothing has changed for those.

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Apple MacBook vs. Dell XPS 13

Sometimes, you don’t want to carry a lot of laptop around with you. Maybe you’re highly mobile and rarely work in the same place for long. Or maybe you tend to work in cramped environments. Whatever the case, if you want a laptop that won’t take up a lot of space in your backpack or on you’re working surface, you have quite a few options.
We’ve taken a look at a couple of modern options, Apple’s diminutive MacBook with its 12-inch display and tiny chassis, and Dell’s XPS 13 that packs a 13.3-inch screen into a similar size. Which of them provides the smallest laptop with the fewest compromises?
DESIGN
Aesthetically, you can’t go wrong with either laptop. The MacBook conforms to Apple’s conservative yet elegant design in three color options, Gold, Space Gray, and Silver. Dell’s XPS 13 is also relatively conservatively designed, offering three of colors as well including a the business-like black and silver, Rose Gold, and a “Frost” that’s a lighter tone of silver than usual. That’s new for 2019. Thanks to a new webcam on the XPS 13 that’s now above the display and hence avoids uncomfortable up-the-nose angles, Dell can now boast some of the slimmest bezels around without making excuses. The MacBook’s wider bezels look downright old-school in comparison.
Both laptops also boast robust build quality, with the MacBook living up to the usual Apple standards thanks to a unibody aluminum chassis that feels like a solid chunk of metal. The XPS 13 has nothing to be ashamed of either, utilizing a range of materials including aluminum and carbon fiber to provide for a confidence-boosting build.
Although the XPS 13 is a bit thinner than the MacBook, it nevertheless boasts a keyboard with significantly more travel than the MacBook’s second-generation butterfly keyboard that’s incredibly shallow. Dell carried over its magnetic levitation technology from its XPS 15 2-in-1, and that means it’s just as snappy as the MacBook’s keyboard without feeling like you’re typing on a block of wood. The MacBook, on the other hand, benefits from the large Force Touch touchpad that’s one of our favorites, while the XPS 13’s Microsoft Precision touchpad is considerably smaller.
Finally, connectivity is similarly limited and focused on the future. Both laptops are limited to USB-C (including Thunderbolt 3 support), although the MacBook only has one port that’s also used to charge the laptop. If you want to connect a peripheral while charging, you’ll need an adapter. That’s really inconvenient sometimes. The XPS 13 has three USB-C ports, two with Thunderbolt 3, and so it’s far more adaptable. Photographers will love the addition of the microSD card slot as well.
The XPS 13 might be just slightly more substantial, but you get a bigger display, a better keyboard, and better connectivity. It wins this round.
PERFORMANCE
The XPS 13 uses 8th-generation Whiskey Lake quad-core CPUs, up to the Core i7-8565U, that provides a great balance of performance and efficiency. It’s fast enough for demanding productivity tasks, and it’s also efficient. The MacBook, on the other hand, uses 7th-generation Intel Y-series CPUs, meaning it’s more focused on being very quiet thanks to a fanless design and squeezing out as much battery life as possible. It was skipped for an update in 2018, meaning it’s a bit behind. Both use fast PCIe solid-state drives (SSDs) and so can access and save data quickly, but the XPS 13 is simply a much faster laptop.
Both laptops feature outstanding displays. The XPS 13 offers a variety of panels, including Full HD (1,920 x 1,080) displays with and without touch and a touch-enabled 4K UHD (3,920 x 1,080) screen. We tested the 4K display, and it’s bright with a wide color gamut, accurate colors, and high contrast. The MacBook’s 12-inch display sports Retina sharpness at 2,304 x 1,440 resolution, and it enjoys an even wider color gamut with high accuracy to go with similar brightness and contrast. Apple is good about making sure higher resolutions come standard, while you’ll have to pay quite a bit to jump up to the XPS 13’s 4K model.
PORTABILITY
Neither of these laptops will weigh you down or take up too much room in your backpack. Pick either, and you’ll enjoy awesome portability. The MacBook, though, is the smaller laptop thanks to its smaller display. However, it’s closer than you might imagine. It’s 11.04 inches by 7.74 inches by 0.52 inches at its thickest point, compared to the XPS 13 at 11.9 inches by 7.8 inches by 0.46 inches — impressive given the Dell’s larger display. The MacBook is considerably lighter, though, at 2.03 pounds compared to the XPS 13’s 2.7-pound starting weight.
Battery life also matters, though, and they’re roughly equal when comparing the XPS 13 with its high-end 4K display. That is, both laptops are going to struggle to last a full working day. If you step down to the Full HD option on the XPS 13, though, the dynamic likely changes with the Dell being a much longer-lasting option.
With equal displays, portability is roughly the same. But Dell gives you the option of a much longer-lasting laptop in the 1080p model.
THE XPS 13 IS A FASTER AND LONGER-LASTING LAPTOP
The MacBook starts at $1,300 for a Core m3 CPU, 8GB of RAM, and a 256GB SSD, and tops out at $1,600 for a Core i5, 8GB of RAM, and a 512GB SSD. That’s very expensive for the specs.
The Dell XPS 13 is a much more economical option, starting at $900 with a Core i5, 4GB of RAM, and a 128GB SSD, and then pricing goes up from there. It’s $2,010, for example, with a much more powerful configuration of a Core i7, 16GB of RAM, a 512GB SSD, and a 4K display.
You can spend more on the XPS 13, but you’re getting far more power, and you can also save some money and enjoy a longer-lasting laptop. Either choice appeals more to us than the MacBook’s relative compromises in battery life and performance.

OnePlus 7 won’t bring you wireless charging

The upcoming OnePlus 7 will likely rock the latest processor and upgraded cameras. One thing it won’t have, though, is wireless charging.
OnePlus phones are known for packing many of the latest features found in premium smartphones like the Samsung Galaxy S10 — and at a much lower price. But one feature that continues to elude OnePlus is the ability for users to place a phone down on a wireless charging pad for a quick boost. CEO Pete Lau still doesn’t think it’s worth adding to his products.
“OnePlus charging is one of the best,” Lau said through an interpreter in an interview on Monday at MWC 2019. “Wireless charging is far inferior.”
Even so, wireless charging has grown in popularity ever since Apple introduced it in the iPhone X, iPhone 8 and iPhone 8 Plus in 2017. Samsung stepped it up by adding the ability to wirelessly charge its Galaxy Buds with its Galaxy S10.
OnePlus is at MWC to show off a prototype of its 5G smartphone, which will come to two carriers in Europe in the second quarter. Lau declined to comment on the OnePlus 7, as well as the rumors that it may shed the notch and add a pop-out camera. He was carrying a prototype of the phone with him, but declined to show it to us.
His comments on wireless charging indicate that one of the key features still on consumer wish lists for an ideal OnePlus phone remains missing.
Lau expressed his skepticism about wireless charging as a consumer benefit, noting that it takes a long time to charge a device with a wireless pad. With the physical quick charge plug, OnePlus says, you can get your battery 50 percent charged in 20 minutes and fully charged in less than an hour.
OnePlus is working on accelerating the delivery of wireless power, but still hasn’t figured out how to do it without too much heat. Lau said he doesn’t have a date for when that may show up in his company’s devices.
Qualcomm said it’s bringing its quick-charge technology to wireless charging,which may improve the experience. Lau declined to comment about using it.

String of ions may out-compute best quantum computers

Usually, I reflexively delete press releases. This one was no different, but as the message vanished, the subject line registered—“IonQ… quantum computing.” It took a second, but I realized that the name might mean something I had never expected: a commercial, ion-based, quantum computer. A quick visit to the trash confirmed my suspicion.
After some negotiation, I was in receipt of a super-secret paper demonstrating the capabilities of IonQ’s new computer.
Engineering ions is not simple
Making an ion-based quantum computer seems like a bad idea. Think about the engineering required to commercialize the computer. You need to have qubits (quantum bits) that are interconnected so that they can perform logic operations, and those qubits need to preserve their quantum-ness.
Pretty much all commercial quantum computing efforts focus on using superconducting rings of current as the qubit. These circuits can take advantage of all the engineering tools available for printed circuit board technology. The control circuits and readouts are all electronic—they send in and receive microwave signals via lines on a printed circuit board. The qubits are interconnected by lines that couple them together. In other words, the engineering is comparatively easy.
In research labs all around the world, however, there are small-scale quantum computers based on strings of ions (an ion is an atom with an electron removed). The ions float in a near-perfect vacuum, trapped by electric fields. Each ion needs to be addressed by two laser beams. The interconnection between qubits occurs via the natural motion of the qubits: they all vibrate together.
Ion qubits and their logic operations outperform their superconducting brethren by a huge margin. But engineering this type of computer at a commercial scale has been an entirely new challenge.
There’s water in your computer
A paper released by researchers uses the IonQ computer to calculate the ground state energy of a water molecule. The calculation itself is something almost any modern computer can do. What makes the calculation stand out is the number of operations required to complete the operation. In choosing water, the researchers have shown ion-based quantum computing at its best.
Let’s put this in perspective. To model a water molecule, the researchers use a standard approach, where it’s assumed that the electrons in a water molecule take on a bit of the character of electrons that are in oxygen and a bit of the character of electrons that are in hydrogen. The trick to the calculation is to determine the balance of the admixtures and their energies.
The calculation that does this is a repeated approximation, where additional correction terms make the result (hopefully) more accurate as the calculation proceeds. This allows you to, in a sense, choose your accuracy based on when you stop doing math. As you might expect, each correction term requires more computational resources—for a quantum computer with only a few qubits, that’s a challenge.
But if you have nice, stable, long-lived qubits that all talk to each other with a high degree of reliability, then you have a bit of wiggle room. That’s one of the key points of this paper: the ion computer allows you to play some clever tricks that reduce the total number of qubits needed in exchange for increasing the number of operations required. That only works if you have time to perform all the operations, and time is something that quantum systems don’t always provide in abundance.
Zooming in
According to the press release, IonQ’s computer has either 160 or 79 qubits (depending on whether the computer is storing or operating on quantum information). Looking at the circuit diagram (the program, essentially), I estimate that the calculation required some 30 qubits. That in itself is quite a jump from the typical ion quantum computer, which has about ten ions.
That, however, is the least of it. The calculation requires many sequential gate operations, and unlike digital logic operations, quantum logic operations are not exact. The error in each operation accumulates over many operations, which will leave a calculation in tatters. Ion computers, however, have very high precision in their operations. The researchers reported that they were able to perform 50 consecutive operations while still retaining the qubit in the correct state about three quarters of the time.
The interconnectedness of the ion computer also played an important role in the calculation. The researchers were able to directly entangle arbitrary pairs of qubits during the calculation. In other quantum computers, geometry does not allow all the qubits to be interconnected. As a result, any computation requires information to be swapped back and forth between qubits. Since the information fades away after a certain number of operations, each additional step to move information around reduces the amount of useful computation that can be done.
The end result is an answer that is very close to the results obtained from standard calculations performed on classical computers. And it’s surely not the end. Hopefully, IonQ release more details about the computer soon—you can be sure we’ll cover it when they do. Even in the absence of more technical details, I’m pretty sure we will see a steady stream of results from users.