to determine its position iphone use internet data?

Yes, when your iPhone is connected to GPS to ascertain its location, it does use some internet data, but the amount is relatively small compared to other data-consuming activities like streaming videos or downloading large files.

The Global Positioning System (GPS) itself does not require an internet connection to determine your location. The GPS receiver in your iPhone uses signals from satellites to triangulate your position on the Earth's surface. This process does not use internet data.

However, there are certain scenarios where your iPhone may use internet data in conjunction with GPS for location services:

1. iPhones often use a combination of GPS and data from nearby Wi-Fi networks and cellular towers to speed up the GPS signal acquisition process. This is known as Assisted GPS or A-GPS. The device uses the internet to download data about the locations of nearby Wi-Fi networks and cell towers, which can help the GPS receiver lock onto your location faster.
2. When you use apps that require location services, such as Maps or weather apps, the iPhone may use data to load map tiles, satellite images, or other location-related information.
3. Some apps and services on your iPhone, like weather apps, social media apps, or navigation apps, use location data to provide you with personalized information or targeted ads. These apps may use a small amount of internet data to fetch location-specific content.
4. Some apps may be allowed to refresh their content in the background, including location data updates. This could use internet data depending on the app's settings.

It's important to note that the data usage related to GPS and location services is generally minimal compared to other data-consuming activities. However, if you want to conserve data usage, you can take the following steps:

• Turn off Background App Refresh for apps that you don't need to update in the background.
• Disable location services for apps that don't require it.
• Download offline maps for your preferred navigation app to reduce the need for data while using GPS for navigation.

To monitor your iPhone's data usage, you can go to Settings > Cellular (or Mobile Data) and scroll down to see a list of apps and their data usage. This will give you an idea of how much data each app is consuming.