eSIM for Navigation: Using Data for Google Maps Abroad
NomadGB ·
To use Google Maps or other navigation tools abroad effectively, you need a reliable mobile data connection provided by an eSIM to handle real-time traffic, dynamic rerouting, and location searches. While GPS technology itself does not require data, the map tiles, traffic layers, and point-of-interest details must be downloaded as you move. An eSIM ensures you have this connectivity the moment you land, allowing for seamless navigation without the high costs of international roaming.
How Much Data Does Navigation Actually Use?
One of the most common questions for travelers is how much data navigation apps consume. On average, Google Maps uses between 3MB and 5MB of data per hour of active navigation. If you are driving for four hours a day, that is only about 20MB. However, this figure is deceptive because it only accounts for the basic navigation path.
When you factor in satellite view, searching for nearby restaurants, checking opening hours, and looking at Street View images, your consumption can easily spike to 50MB or 100MB per outing. For digital nomads staying in a country for a month, using maps daily can easily consume 1GB to 2GB of your total allowance. This is why NomadGB focuses on high-volume plans; having a 20GB or 50GB cushion ensures you never have to worry about getting lost because you ran out of data.
Data Breakdown by Activity
| Activity | Estimated Data Usage |
|---|---|
| Standard Navigation (1 hour) | 3 - 5 MB |
| Navigation with Satellite View (1 hour) | 20 - 50 MB |
| Searching for POIs and Reviews | 1 - 2 MB per search |
| Downloading a 50km x 50km Offline Map | 50 - 150 MB |
| Street View (per minute of browsing) | 5 - 10 MB |
Coverage Realities: Cities vs. Rural Areas
When using an eSIM for navigation, your experience will vary significantly depending on the local infrastructure. In major hubs like Tokyo (dest:jp) or Bangkok (dest:th), you will likely be connected to 5G or high-speed 4G/LTE networks. In these environments, Google Maps is incredibly responsive, providing lane-level guidance and instant updates on public transit delays.
However, if you are venturing into more remote territory, such as the national parks in the United States (dest:us) or the mountains of Northern Italy (dest:it), signal strength may fluctuate. In these cases, it is vital to understand connectivity in rural areas before you set off. Most eSIMs provided by NomadGB connect to Tier-1 local carriers—like Orange in France (dest:fr) or Movistar in Spain (dest:es)—ensuring the broadest possible coverage, but no network is perfect in deep valleys or dense forests.
Why an eSIM Beats Traditional Roaming for Maps
Traditional roaming with your home carrier is often the most expensive way to navigate. Many carriers charge upwards of $10 per day for a tiny sliver of data. If you are a long-stay traveler or digital nomad, this is financially unsustainable.
An eSIM allows you to bypass these fees by connecting directly to local networks at local-adjacent rates. Because NomadGB offers plans with 30, 60, or even 180-day validity, you can pay once and have reliable navigation for your entire trip. It is important to note that these are data-only plans, which means you will not receive a local phone number for traditional calls or SMS, but all your internet-based apps like Google Maps, Waze, and WhatsApp will function perfectly.
Step-by-Step: Setting Up Your Navigation eSIM
To ensure you have maps ready the moment you exit the plane, you should install your eSIM before you depart. First, check if your device is compatible with eSIM technology, as most flagship phones from the last few years (iPhone 11+, Samsung S20+, Pixel 3+) support it.
On iPhone
- Go to Settings > Cellular > Add eSIM.
- Scan the QR code provided by NomadGB.
- Label the plan (e.g., "Travel Data").
- Set the new eSIM as the default for Cellular Data.
- Ensure "Data Roaming" is toggled ON for the new eSIM.
On Android
- Go to Settings > Network & Internet > SIMs > Add SIM.
- Select "Download a SIM instead?"
- Scan the QR code.
- Once activated, select the eSIM for your data connection.
- Enable Data Roaming in the eSIM settings to ensure it can connect to the local partner networks.
For a more detailed walkthrough, you can view our full eSIM installation guide.
Pro Tips for Saving Data While Navigating
Even with a large data plan, it is smart to be efficient. One of the best ways to save data is to download "Offline Maps" in Google Maps while you are on hotel Wi-Fi. This allows the app to use your phone's GPS to show your location on the map without needing to download the visual tiles over the cellular network. The eSIM will then only be used for real-time traffic updates and searching for new destinations.
Additionally, you should look into strategies to reduce background data usage. Many apps sync photos or download updates in the background, which can eat into the data you intended to use for navigation. By restricting these background processes, you ensure your gigabytes are reserved for finding your way around cities like Mexico City (dest:mx) or exploring the vast regions of the European Union (dest:eu-42).
The Role of Regional and Global Plans
If your journey involves crossing borders—for example, a road trip across the Balkans or Southeast Asia (dest:as-20)—a regional plan is far superior to buying individual local SIM cards. NomadGB’s regional plans allow you to maintain a single data connection as you cross borders. This is crucial for navigation because it prevents the "connection gap" that happens when you lose one signal and have to wait to find a shop for a new SIM. With a regional eSIM, your Google Maps will simply keep working as you drive from one country to the next.
The bottom line
An eSIM is the most efficient and cost-effective tool for navigation while traveling. By choosing a high-volume, long-validity plan, you ensure that Google Maps remains a reliable guide rather than a source of data anxiety. Whether you are navigating the dense streets of London (dest:gb) or the coastal roads of Brazil (dest:br), having data ready to go the moment you arrive is a game-changer for any modern traveler.
Frequently asked questions
Does Google Maps work without a data connection?+
GPS works without data, but the maps themselves will not load unless you have previously downloaded them for offline use. An eSIM provides the data needed for real-time traffic, searching for locations, and viewing map details.
How much data should I buy for a two-week road trip?+
For two weeks of heavy navigation and general browsing, a 10GB to 20GB plan is recommended. This provides enough data for maps, music streaming, and social media without the risk of running out mid-trip.
Can I use Waze instead of Google Maps with an eSIM?+
Yes, Waze works perfectly with an eSIM. It uses a similar amount of data to Google Maps for navigation but may use slightly more for its frequent crowdsourced traffic and hazard updates.
Will my eSIM work in tunnels or remote mountains?+
eSIMs rely on local cellular towers; if there is no signal from the local carrier, your data will not work. In these areas, it is best to have offline maps downloaded as a backup.
Do I need a local phone number to use navigation apps?+
No, Google Maps and other navigation tools only require an internet connection. NomadGB's data-only plans are perfect for this, as they provide high-speed data without the unnecessary cost of a local number.