From www.forbes.com
This year’s Apple Watch is reported to introduce a new display technology, one which could result in a highly desired upgrade for any gadget: increased battery life.
Apple Watch Series 9. Will Series 10 have a new display technology?
April 16 update below. This post was first published on April 13, 2024.
According to The Elec, the next Apple Watch, due this fall, will use a new type of OLED screen called low-temperature polycrystalline oxide thin-film transistor. Currently, LTPO is only used for part of the Watch’s display tech and the rest uses low-temperature polycrystalline silicon, which is not as power-efficient. Right now, LTPO is restricted “to some switching TFTs,” the report says.
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Here’s how it describes the tech: “Using oxide instead of LTPS for a drive TFT means that oxide is responsible for the TFT that connects directly to the OLED pixel. In LTPO OLED, oxide has been used to reduce leakage current, but in the new LTPO OLED, the role of oxide increases.”
All of which means that while the display may not look any different, the next Watch could promise longer battery life. But will it?
It’s a good question. Apple has routinely followed a simple plan when it comes to battery life on the Watch: keep it roughly where it is. True, the Apple Watch Ultra and Ultra 2 have much longer battery life, but other models have stuck to the same 18-hour usage between charges.
My guess would be that this formula will be continued, but that’s still reason to be excited. That’s because if there’s more battery life to go around, Apple likes to spend it on new features rather than extending the overall life.
Which means that even with these new features, we’re likely to see Apple Watch Series 10 with similar battery life to Series 9. It’s not clear yet what these features might be, though there are rumors that Apple is going to build blood pressure measurements into Series 10.
This would make sense: it’s a key feature on Samsung smartwatches and on lightweight devices like the excellent Swiss-based Aktiia bracelet. In which case it will be interesting to see if it works in the same way as on Samsung’s devices, where you have to calibrate it once a month in conjunction with a blood pressure cuff.
Or will it be like the Huawei Watch D which needs no calibration (though it has an inflating wrist band which sounds decidedly un-Apple). More as we have it.
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April 15 update. The new display, with its battery-extending or preserving properties won’t be the only upgrade coming to the Apple Watch, it seems. A recently discovered patent, spotted by Patently Apple, suggests that swimmers may be able to benefit in a way that could even save lives.
Already, the Apple Watch can meticulously count how many lengths of a swimming pool you’ve swum, showing your heart rate as you go. But the new patent suggests that Apple may be looking to help swimmers in danger, working as a “digital pool attendant.”
The idea is that the sensors in the Watch cold recognize whether someone is swimming or not, and “whether the user is showing regular or irregular behavior while swimming; and in accordance with the user showing irregular behavior, sending an alert message to one or more other devices.”
The alert message could be sent to a non-swimmer, for instance, and by using “a swimming analytics application that can determine limb coordination, swimming style and various other metrics and other information that are good indicators of swimming,” could understand when a swimmer is getting into difficulties.
As always with these things, the existence of a patent doesn’t mean that the feature is coming soon, or even at all, but this is an intriguing new feature that’s right in line with Apple’s health-conscious and safety-first approach.
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April 16 update: Key though battery life is, it looks like it won’t be the only upgrade coming to this fall’s new Apple Watch models. As MacRumors has reported, there are plenty of other changes predicted.
Perhaps the most exciting is blood pressure monitoring, which has been rumored by Bloomberg’s Mark Gurman to arrive this year. Apple won’t be the first with this: Samsung has had it on its smartwatches for some years and Huawei even has a watch that’s almost dedicated to the measurements, complete with a wristband that inflates to take your current blood pressure readings. Samsung does it electronically and you need to calibrate the watch every month, comparing the readings to a standalone cuff.
What none of the watches do is record blood pressure in the background. For that, you need to turn to the Swiss-mad Aktiia bracelet, which takes readings throughout the day and night. This is ideal for anyone who gets panicky when having their blood pressure measured, the so-called white coat syndrome.
But this process, which also requires monthly calibration, uses battery life perhaps more than Apple will want to allocate. And the downside Aktiia is you can’t take readings on-demand.
That said, Gurman believes that the Apple Watch will be able to detect episodes of abnormally high blood pressure, or hypertension, which suggests there may be some in-the-background work going on.
The same MacRumors report also says that sleep apnea detection may be on its way, something that Samsung has on its smartwatch in the territories where it has received clearance, and will, I suspect, be on the upcoming Galaxy Ring, as well.
With such new features, it’s a good thing that the battery life may be increasing, and I’d suggest these features are where Apple will spend the extra battery bounty.
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