What Is Inaccurate GPS Data?
The data captured during an outdoor workout relies heavily on your device’s GPS. Runna (like all run-tracking apps) uses a continuous stream of location points to calculate your distance, speed, and route.
Inaccurate GPS data occurs when the locations recorded by your device don’t match your true position. This can lead to issues such as:
Incorrect pacing feedback
Distorted elevation data
Distances that appear too long or too short
Activity data that doesn’t accurately reflect your run
What Happens When GPS Is Inaccurate?
There are two main types of GPS issues:
Complete GPS Signal Loss
If your device loses its entire connection with GPS satellites, then no location data will be recorded for this period of time. This can cause:
Missing route maps
Straight lines connecting large gaps in your run
Poor GPS Accuracy
If your device receives low-quality GPS data points, your tracked route may drift away from your actual path. This can cause:
Incorrect distance tracking
Unreliable speed and pacing measurements
Given that Runna relies on many data points throughout your workout, even small inaccuracies can create noticeable errors over time.
What Causes GPS Inaccuracies?
Some level of GPS error is normal across all devices, especially on phones where GPS hardware can vary significantly.
Several environmental and technical factors can reduce GPS accuracy, including:
Signal Interference
GPS signals can be weakened or blocked by:
Tall buildings
Dense tree cover or forests
Tunnels
Adverse weather conditions
In cities, signals may also bounce off skyscrapers which results in less accurate positioning.
Poor Satellite Reception
GPS accuracy depends on the number and quality of satellite signals received by your device. Reception may be worse in:
Deep valleys or hilly terrain
Remote areas with limited coverage
Indoor or underground environments
Software Issues
GPS performance can also be affected by outdated software or background app interference. We recommend:
Ensuring your operating system and apps are up to date
Closing unused apps
Restarting your device if the GPS behaves unexpectedly
Location Services Settings
Your device’s location settings can also impact the accuracy of GPS signals. Make sure:
Location Services are enabled for Runna
High Accuracy mode is turned on (GPS + Wi-Fi + mobile networks)
Battery-saving modes rely more on WiFi or cellular signals, so this could also reduce GPS accuracy.
Hardware Limitations
In some cases, hardware issues (such as a damaged GPS antenna or water exposure) can reduce signal quality. If problems persist, contacting your device manufacturer may help.
Need more support?
If you have any questions or need further support, please reach out via our in-app support tab and we'll do our best to help!