5 ms·
I though the Apple Watch had its own GPS and used that for signal?
by tiernano 4y ago
I though the Apple Watch had its own GPS and used that for signal?
- scarface74 4y agoIt does have it’s own GPS. But if it tethered with your phone, it uses that instead to save battery life. The same is true for cellular Apple Watches.
- tiernano 4y agoI did not know this. handy to know!
- LeoPanthera 4y agoSimilarly, if you are using CarPlay, it will use your car's GPS instead of the built-in one. I figured this out when my car's GPS developed a fault which often gave a lock hundreds of meters away from my actual position, and my phone did the same thing when connected via CarPlay.
- the_mitsuhiko 4y agoCars also do dead reckoning with wheel and steering data so you get pretty decent data in tunnels where basic GPS fails.
- _rs 4y agoCould you expand more on this? Very curious what this means/how it works
- parshimers 4y agoMost headunits with Carplay require you to have the vehicle speed sensor connected to them. They also have a compass. So, if you lose GPS, you have the 3 components you need for dead reckoning: A starting location, a heading, and a speed. It works pretty good even in complex areas like parking garages.
- tiernano 4y agoDoes not seem to be the case for bmw g30/31 (5 series). The onboard satnav works in tunnels and does not think I'm driving down a side road, but CarPlay does...
- _rs 4y agoHmm, there must be a lot of cars without their own GPS then, or maybe apps can choose to use it or not? When I use Waze with rental cars I often see Waze responding to my phones orientation when CarPlay is active. Unless Waze is using orientation just for visual and the GPS is used for the position
- LeoPanthera 4y agoOrientation uses the accelerometer, not GPS.