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12/3/19
Motion Sense - A new way for your Pixel to understand you 0 Recommended Answers 24 Replies 327 Upvotes
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Last edited 12/3/19
Hi everyone,

I want to share a little more about Motion Sense™, the Soli radar technology powering several of our helpful new features this year. 

Motion Sense creates a new way to interact with your device, accelerating your control of the phone, helping you stay in the moment, and letting you interact when touch isn't convenient.  It automatically turns on your display when you approach and keeps it off when no one is around. It triggers face unlock when you reach for it. It lets you skip songs with a swipe and snooze alarms with a wave. You can silence incoming calls instantly. You can even wave hello to your favorite Pokemon!

Our Quick Gesture features in particular are about accelerating your control of your phone:
  • Touchless multitasking
    • Control your music with a swipe no matter what else you’re doing: driving, eating, while your display is off, or even when you’re in another app.
  • Stay in the moment
    • Avoid getting distracted by your morning notifications when you go to snooze your alarm on your phone. Just wave to snooze alarms and dismiss timers. 
  • Stop interruptions
    • When your phone starts ringing at a bad time, you can silence it instantly with a wave. 


You can turn on Motion Sense features in Setup and in Settings under System > Motion Sense. You can separately toggle each of the Motion Sense features. 

Motion Sense is based on Google’s Soli radar technology. In principle, this is similar to the radar technology used to track large objects like planes. We’ve created a miniature version in a chip located at the top of your Pixel 4. When Motion Sense is turned on, it emits a radio frequency signal from this chip. The signal goes out into the world and gets reflected back by the things around your phone. These continuous reflections are sensed by the antennas in the chip and processed on-device to sense your motions. If the right motion is detected, it will trigger the corresponding Motion Sense feature. This motion processing happens only on your phone, and radar sensor data is never saved or shared with other Google services. 


To minimize false triggers, Motion Sense ignores motions when it’s in your pocket or bag, or when your phone is moving around a lot. Still, it’s important to keep in mind that this is new technology. In some instances, your phone may detect gestures when you don't intend it to, like when there are motions over your phone that look very similar to swipes. We are very interested to hear about these instances so that we can learn from them to make our algorithms better in the future. 

Another aspect of Motion Sense being a new technology is that it is not available in all countries due to differences in radio frequency regulations. We hope to make it available in more places soon. If you travel from a country where Motion Sense is available to one where it is not, you will receive a notification letting you know that Motion Sense is temporarily disabled. Motion Sense is also disabled while in airplane mode and in battery saver mode. 

Motion Sense is one of our most helpful and exciting innovations in Pixel 4. I look forward to hearing your feedback on this thread, both about the features you find most helpful and the features you find yourself not using as much, so that we can make Motion Sense better in the future. We plan to release more features over time.

Brandon 
Product Manager
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All Replies (24)
12/4/19
The feature is great altogether and as with anything new it has limited gestures etc. The main disadvantage is that it has limited potential as of now. It would be great to see it support many new gestures like decrease/increase the volume, skip tracks by 10s ahead/back, waving at it while using front cam to initiate a selfie in 2s(can be done using front cam too), much more. Google has to be innovative to get this right. I frankly don't like the edge sense on pixel phones. My old HTC U11 had far more customizable squeezes using the edge sense which the pixel isn't having. I hope motion sense doesn't go that way. So far things seem to be good. Let's hope to get a quick update for gestures. 👍🙂🙂
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12/4/19
I find not having a pause/start gesture for music (like on the Google Next Hub) makes the feature rather useless for music.
 
For other uses iits a lovely addition
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12/4/19
Yeah! I would like to see more gesture support added to motion sense and already existing gesture support get better with time in recognizing our actions instead of giving false positives or not responding sometimes!
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12/5/19
Can't wait for a pause gesture!!
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12/5/19
I'd like to test it, but it's for unknown reasons locked in Ukraine. TO whom I should address my request to enable this on the edge feature in Ukraine? (device bought in the US at official Google Store)
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12/5/19
The feature is not available in countries where the device has not been officially released
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12/5/19
Yes, I know that. However, there is a trick, how to enable motion sensor (https://www.xda-developers.com/enable-pixel-4-motion-sense-gestures/ or https://www.notebookcheck.net/The-Pixel-4-s-Soli-Radar-can-be-enabled-in-any-region-thanks-to-a-hidden-debug-feature.440988.0.html) , but device need to be rooted, which is not good, especially for not advanced users. 
So, if it's just a soft restriction, should it be on User decision to on/off this feature?
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12/5/19
ITs disabled by the software becuase the allowability of such a feature in unreleased countries has not been fully vetted with the governments.
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12/5/19
I'm not sure about that. Google wins U.S. approval for new radar-based motion sensor, based on that operate in the 57- to 64-GHz frequency band at power levels consistent with European Telecommunications Standards Institute standards.  (https://www.reuters.com/article/us-google-sensor/google-wins-u-s-approval-for-radar-based-hand-motion-sensor-idUSKCN1OV1SH)
This means, that all members of European Telecommunications Standards Institute (ETSI) should be included as supported Countries by default. Ukraine is a full member of ETSI (https://en.wikipedia.org/wiki/ETSI), so it should be totally supported.
That's why I'd like to know, responsible to whom I can address these facts, just to enjoy Soli radar in my native Country))))
Last edited 12/5/19
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12/16/19
I agree. I brought the pixel 4xl some weeks ago, and the motion sense is not available in Mexico..  the cellphone is unlocked, so I should have the possibility of decide if I want to enable/disable the motion sense...
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