Geolocation on your phone is not a single switch: it’s several layers that are activated in different places and that, if misconfigured, can make an app place you kilometers away from where you are or make your battery last half as long. This guide walks through the actual settings, screen by screen, on both Android and iPhone, with the settings that really matter and the mistakes I see repeated most often.
Before touching anything: understand what you’re activating
When an application requests access to your location, it doesn’t always use GPS. The systems combine three sources: the satellite signal (GPS, GLONASS, Galileo), cell tower triangulation, and the identification of nearby Wi-Fi networks. According to the official documentation from Google and Apple, pure GPS takes longer to fix a position and consumes more energy; that’s why the systems resort first to Wi-Fi and cell towers, and only afterward to satellite.
This explains a behavior that confuses many users: inside a building, with no view of the sky, the phone can locate you with an accuracy of a few meters thanks to Wi-Fi networks registered in public databases. And it also explains the opposite: in a rural area with no cell towers or known Wi-Fi, the first fix can take 30 seconds or more even with GPS turned on.
Android settings: the three switches that matter
The exact path changes depending on the customization layer (Samsung One UI, Xiaomi HyperOS, Pixel UI), but the logic is the same on Android 13, 14, and 15.
1. General system location
Go to Settings → Location (on some models it appears as Location and security). Here there is a master switch. If it’s off, no app can access it, not even those that have been granted permission.
Within that menu, go into Location services and check that Wi-Fi scanning and Bluetooth scanning are active. This is a surprising point: these scans work even with Wi-Fi turned off, and they serve to improve accuracy. Deactivating them “to save battery” usually makes indoor location worse.
2. Accuracy mode
In Settings → Location → Location services → Location mode you’ll find two or three options depending on the manufacturer:
- High accuracy: uses GPS, Wi-Fi, Bluetooth, and cell towers. This is the one you need for navigation and delivery apps.
- Device only: GPS only. More private, but slower and less reliable indoors.
- Battery saving: skips GPS and relies on networks. Fast for an approximate location, useless for turn-by-turn navigation.
A practical detail: if you use your phone as a GPS navigator in the car and notice that the cursor “jumps” between parallel streets, it’s almost always because the mode is set to battery saving and not high accuracy.
3. Per-app permissions
In Settings → Apps → [app] → Permissions → Location you choose between Allow all the time, Allow only while using the app, and Don’t allow. Since Android 12 there is also the option to give approximate location instead of precise location, a switch that many users turn on without meaning to and then wonder why the maps app can’t tell which side of the street they’re on.
iPhone settings: where each thing is
On iOS the path is Settings → Privacy & Security → Location. The top switch activates the service; below it appears the list of apps with their individual permission.
Precise vs. approximate location
Each app has a switch called Precise Location. If you turn it off, the app receives an area of several kilometers instead of your exact position. It’s useful for news or weather apps; it’s a disaster for maps, taxis, or exercise apps that draw your route.
System services
At the bottom of that same screen is System Services. There live functions such as Compass calibration, Cell Network Search or Wi-Fi Networking, or Location-Based Suggestions. If your orientation arrow in Google Maps points where it shouldn’t, activating compass calibration and moving the phone in a figure-eight usually resolves it in seconds.
A nuance worth knowing: Apple documents that, even if you disable location for a specific app, some system services continue collecting data from Wi-Fi networks and cell towers for its own positioning database. Disabling everything completely requires turning off the master switch.
A specific mistake I see every week
Not long ago I helped configure an Android phone that “couldn’t find the location” in an airline’s app. GPS was active, permissions granted, the mode set to high accuracy. The problem was something else: the system time was off by several minutes because the user had set it manually. GPS depends on time synchronization with the satellites to calculate distances; with a clock that’s off, the fix fails or takes forever.
The solution: Settings → System → Date and time → Automatic time. This isn’t a rare case; it appears in forums and in the support documentation of several manufacturers. If location fails for no apparent reason, check the time before touching anything else.
Verify that the settings work
It’s not enough to flip switches: you have to check the result. Open Google Maps and tap the location button (the blue circle). Observe the accuracy circle around the blue dot:
- Narrow circle (5-10 m): GPS fixed correctly.
- Wide circle (hundreds of meters): there is only cell tower or Wi-Fi triangulation. Go outside and wait a few seconds.
- Gray dot or “searching for location” message: the system has no reference at all. Check the master switch and the device time.
Another useful test: the GPS Test app on Android or GPS Status show how many satellites the receiver sees and the signal quality. If it detects none, the problem is hardware or an obstructed sky, not configuration.
When geolocation is not the right tool
It’s worth being honest: there are scenarios where configuring location precisely solves nothing. If you need to know which floor of a shopping mall a person is on, GPS is useless; you need Bluetooth beacons or calibrated Wi-Fi networks, and not all buildings have them. If the goal is to locate a lost device, the system location helps, but it depends on the device being on, with battery, and connected; without that, there’s no miracle possible.
Nor does geolocation guarantee absolute accuracy in dense urban areas: tall buildings bounce the satellite signal and generate the so-called urban canyon effect, which can shift the point by dozens of meters. According to studies from the navigation industry, on narrow streets in historic centers accuracy can degrade noticeably compared to an open avenue.
Privacy: what to review after configuring
Once everything works, it’s worth doing some cleanup. On Android, check Settings → Location → Location History (linked to your Google account) and decide whether you want it saved. On iPhone, Settings → Privacy & Security → Location → System Services → Significant Locations saves the places you visit frequently; you can delete it from there.
A practical recommendation: for apps that only need to know your city (weather, news, shopping), approximate permission is enough, or even entering the location manually. Reserve precise location for maps, transportation, exercise, and emergencies. Every permission you grant is a piece of data the app can use while it’s installed.
Summary of the configuration path
- Turn on the system’s master location switch.
- Choose high accuracy mode (Android) or enable precise location per app (iPhone).
- Grant individual permissions judiciously, not in bulk.
- Verify the device’s automatic time.
- Check the actual accuracy with a maps app or a diagnostic tool.
- Review the history and system services to limit what is saved.
With these steps, geolocation works reliably in most everyday scenarios. What can’t be promised is perfect accuracy in deep interiors, tunnels, or areas without coverage: there, no configuration replaces physical infrastructure.