Wednesday, August 11th, 2021

Time	Event
3:30a	Wear OS Is Getting a Multi-Generational Leap In Power Thanks To Samsung An anonymous reader quotes a report from Ars Technica: Google is cooking up the first major Wear OS release since 2018, and Samsung is abandoning Tizen for smartwatches and going all-in on Wear OS with the Galaxy Watch 4. Last night, Samsung took the wraps off the main SoC for the Galaxy Watch 4, and compared to what Wear OS usually gets, Samsung is shipping a beast of an SoC. The "Samsung Exynos W920" will be a multi-generational leap in performance for Wear OS. Samsung says this is a 5 nm chip with two ARM Cortex A55 cores and an ARM Mali-G68 GPU. For the always-on display mode, there's an additional Cortex M55 CPU, which can keep the watch face ticking along while using minimal power. There's also an integrated LTE modem for on-the-go connectivity. Compared to Samsung's previous smartwatch chip, the Tizen-only Exynos 9110 (10 nm, 2x Cortex A53), the company is promising "around 20 percent" better CPU performance and "ten times better graphics performance." Remember that the Exynos 9110 is from 2018, so those comparative numbers are inflated, but at 5 nm, this is a more modern chip than Wear OS has ever seen. Wear OS has suffered for years at the hands of Qualcomm, which has been starving the ecosystem of quality SoCs for wearables. Most people's last experience with Wear OS is the Snapdragon Wear 2100 or 3100 SoCs, both of which were ancient Cortex A7 CPUs built on a 28 nm process. Qualcomm introduced a slightly more modern chip, the Wear 4100 in 2020 (a Cortex A53-based, 12 nm chip), but almost no manufacturers actually shipped that chip a year later, and we're still getting Wear 3100 launches today. Qualcomm's answer to Samsung's chip will be the Wear 5100, which isn't due until 2022. We should know more about Wear OS 3.0 tomorrow when Samsung holds its Aug. 11 "Unpacked" event. Not only are they expected to reveal the Galaxy Watch 4 and the big Wear OS revamp, but they're planning to launch at least two new foldable smartphones -- the Galaxy Z Fold 3 and Galaxy Z Flip 3. Read more of this story at Slashdot. (Comment on this)
10:00a	Windbreaks Could Help Wind Farms Boost Power Output labloke11 shares a report from Science News: Windbreaks may sound like a counterintuitive idea for boosting the performance of a wind turbine. But physicists report that low walls that block wind could actually help wind farms produce more power. Scientists already knew that the output of a single wind turbine could be improved with a windbreak. While windbreaks slow wind speed close to the ground, above the height of the windbreak, wind speeds actually increase as air rushes over the top. But for large wind farms, there's a drawback. A windbreak's wake slows the flow of air as it travels farther through the rows of turbines. That could suggest that windbreaks would be a wash for wind farms with many turbines. But by striking a balance between these competing effects, windbreaks placed in front of each turbine can increase power output, new computer simulations suggest. It comes down to the windbreaks' dimensions. Squat, wide barriers are the way to go, according to a simulated wind farm with six rows of turbines. To optimize performance, windbreaks should be a tenth the height of the turbine and at least five times the width of the blades, physicists report July 30 in Physical Review Fluids. Such an arrangement could increase the total power by about 10 percent, the researchers found. That's the equivalent of adding an additional turbine, on average, for every 10 in a wind farm. In the simulations, the wind always came from the same direction, suggesting the technique might be useful in locations where wind tends to blow one way, such as coastal regions. Future studies could investigate how this technique might apply in places where wind direction varies. Read more of this story at Slashdot. (Comment on this)
10:40p	The Galaxy Watch 4 Injects Samsung's Capable Hardware With Google Software Today, Samsung launched the Galaxy Watch 4 and Galaxy Watch 4 Classic -- two new wearables that are "the fruits of Samsung's smartwatch collaboration with Google," writes Becca Farsace via The Verge. From the report: The Watch 4 Classic starts at $349 for the Bluetooth model, rising to $399 for the LTE model, while the Watch 4 is a little less expensive with a starting price of $249 (or $299 with LTE). Both are available to preorder today, and ship August 27th. The big difference between the two models is that the Watch 4 Classic has one of those physical rotating bezels that we've liked so much on Samsung's previous smartwatches, while if you opt for the standard Watch 4, there's a touch-sensitive bezel accessible by swiping at the edges of the screen. The Watch 4 Classic is also made of a more premium stainless steel rather than the aluminum you'll find on the Watch 4. On the right of both watches are a pair of control buttons. External differences aside, internally both watches share a lot of the same specs. They're both powered by the same 5nm Exynos W920 processor Samsung detailed yesterday, paired with 1.5GB of RAM and 16GB of storage. Battery capacity varies between sizes, but Samsung reckons you'll average around 40 hours of battery life regardless of model. There's LTE on select models, but if you were hoping for 5G, you'll be disappointed -- Samsung says it doesn't think it's worth it because the amount of data smartwatches process is too small. But the biggest departure from Samsung's previous smartwatches is that the Watch 4 and Watch 4 Classic aren't running its own Tizen operating system. Instead, their software is the result of a collaboration between Samsung and Google, which was announced in May. Samsung is branding the watches' operating system as "Wear OS Powered by Samsung" although Google has called it Wear OS 3. But either way, the hope is that it combines the best of Tizen with the best of Wear OS. On Samsung's watches specifically, the interface you're looking at is One UI Watch, which is effectively Samsung's skin sitting on top of Wear OS. Think of it as Samsung's One UI software on phones, which works with Google's Android. It gives the Watch 4's interface a similar look and feel to Samsung's previous Tizen-powered watches. Google has promised its collaboration with Samsung will lead to a host of high-level benefits for Wear OS, like improved battery life, faster loading apps, and smoother animations. Read more of this story at Slashdot. (Comment on this)

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