Slopes uses GPS to track and record your activities. GPS (Global Positioning System) works by connecting the chip in your phone to overhead satellites and is used to identify location, speed, distance, and more. While GPS works everywhere in the world and under most weather conditions, bad GPS reception can happen occasionally. This can be down to a random loss of connection to satellites or an external factor such as your proximity to dense trees or tall buildings, heavy cloud cover, or even just having your iPhone buried deep at the bottom of your backpack. Cool fact - your device generally needs to receive signal from around 5 satellites to get an accurate estimate of its location.
To get the most out of Slopes and make sure you capture every awesome minute of your days skiing and snowboarding, you need to make sure that your device has a strong GPS fix before you start recording.
Luckily, there's a few things you can do to avoid GPS issues. Most of the time your iPhone can get a good GPS signal in <10 seconds. But if you're having issues, you can try the following:
- Make sure you're outside; being indoors will greatly degrade the accuracy of your phone's GPS.
- Let Slopes get a good GPS fix before you turn off cell data or WIFI as those can speed up the acquisition process.
- Make sure Airplane and Low Power modes are off as they do affect the accuracy of your GPS. Turn off cell data instead.
- Try keeping your phone in a different location. Some clothing materials really hurt GPS reception, or you might have it under too many layers.
- Head to the into Apple's setting app and look for Slopes (scroll down a lot), go into Location Services, and toggle access off and then back on.
- Worst case, reboot your phone. This is rare, but I've seen it fix poor GPS reception issues.
If you're running Slopes via an Apple Watch, it is highly recommended you keep your phone with you when you ride to improve GPS accuracy.