Clues to the Next iPhone Are in Samsung’s New Galaxy S21 Years of smartphone launches all plotted on one evidence board. A fingerprint sensor embedded in the screen? An ultra-zoom camera? A faster 120Hz display? Samsung’s latest tells us a lot about what might come from Apple this year in the iPhone 13. WSJ’s Joanna Stern sifts through years of Galaxy and iPhone evidence. Photo illustration: Preston Jessee for The Wall Street Journal Personal Technology With Joanna Stern
At this year’s virtual tech megashow, gadgets to protect you from Covid-19 are all the rage. But do you need a connected mask and a personal air purifier? What about a doorbell that takes your temperature? WSJ’s Joanna Stern checks out this new gear—from her basement. Photo illustration: Preston Jessee for The Wall Street Journal
As CES goes online for the first time, we preview the most-anticipated products and trends (and what’s missing) at the world’s biggest tech show.
The 2021 Toyota Mirai is the second generation of zero emission hydrogen fuel cell electric sedan.
One of the principal aims for the new 2021 Mirai has been to give the car a stronger emotional appeal, making it a car that people will be attracted to by its looks and the way it drives, as well its eco-performance. The new GA-L platform and Toyota’s advances in FCEV technologies have made this possible. Toyota’s new fuel cell stack and fuel cell power converter (FCPC) have been developed specifically for use with the GA-L platform.
The designers have been able to bring all the elements together in the stack frame (including the water pumps, intercooler, air conditioning and air compressors and the hydrogen recirculation pump) with each part made smaller and lighter, while at the same time improving performance. The stack case itself has been made smaller by using Friction Stir Welding, reducing the gap between the fuel cell and casing.
The new Mirai is equipped with lithium-ion high-voltage battery in place of the current model’s nickel-metal hydride unit. Although smaller in size, it is more energy-dense, giving higher output and superior environmental performance. Containing 84 cells, it has a 310.8 rated voltage compared to 244.8, and a 4.0 Ah capacity, versus 6.5 Ah. Overall weight has been reduced from 46.9 to 44.6 kg. The output has improved from 25.5 kW x 10 seconds to 31.5 kW x 10 seconds.
The battery’s smaller dimensions have allowed it to be positioned behind the rear seats, avoiding intrusion in the load compartment. An optimised air-cooling path has been designed, with discreet inlets either side of the rear seats. The environmental benefit of driving the Toyota Mirai go beyond zero emissions to “negative emissions” – the car effectively cleans the air as it moves. A Toyota innovation, a catalyst-type filter is incorporated in the air intake.
As air is drawn into the vehicle to supply the fuel cell, an electric charge on the non-woven fabric filter element captures microscopic particles of pollutants, including sulphur dioxide (SO2), nitrous oxides (NOx) and PM 2.5 particulates. The system is effective in removing 90 to 100% of particles between 0 and 2.5 microns in diameter from the air as it passes into the fuel cell system.
India is positioning itself as a smartphone-production hub amid a U.S.-China trade war that has disrupted global supply chains and left tech firms such as Apple and Samsung looking for alternatives to China to manufacture their products. Photo: Olivier Le Hellard for The Wall Street Journal
The tech battle between the U.S. and China has battered TikTok and Huawei and startled American companies that produce and sell in China. WSJ explains how Beijing is pouring money into high-tech chips as it wants to become self-sufficient.
Video/Illustration: George Downs/The Wall Street Journal
A selection of three essential articles read aloud from the latest issue of The Economist. This week, Huawei and the tech cold war; (8:55) millions of young minds are going to waste; (16:10) and a new material helps transistors become vanishingly small.
CES 2020 featured remarkable innovations from both long-time exhibitors and companies you might not typically think of as tech companies. We also unveiled our Global Tech Challenge, calling on innovators to use their tech for good. There was so much to see and do over just a few short days. Join us as we look back on highlights from this year’s show with leaders from Samsung and Sony, two of the most talked-about brands at CES 2020.
The Gearbox Automatic has created quite a buzz in the audio world, a plug & play turntable that plugs a gap in the portable turntable sector. It features high-quality components, meaning the sound is astonishing for its price class. This you would expect from Gearbox of course, but it also does things no other turntable has ever done before.
What also sets this turntable apart is the high-fidelity built-in valve phono stage, (the first in the world to have one), which has been designed and tuned for moving magnet cartridges such as the pre-fitted Ortofon OM10. This means that you can plug the turntable straight into any line input and enjoy the warm and open acoustics, right from the box.