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How to Use WhatsApp Internationally
May 22, 2025 | 7 minute read
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Hansel Arief

WhatsApp is one of the easiest ways to stay in touch while traveling. It works over the internet, not traditional phone networks. You can text, call, and share updates without paying international SMS or call fees. This guide breaks down how WhatsApp works abroad and what you need to stay connected.

How to use WhatsApp internationally, tips and using eSIM instead.

How to Use WhatsApp Internationally

WhatsApp functions internationally the same way it does at home. It doesn't rely on your mobile carrier for messaging or calls. All it needs is an internet connection.

You can use WhatsApp over:

  • Hotel or airport Wi-Fi
  • Mobile data via local SIM or travel eSIM
  • Personal hotspots or portable routers

No SIM swap or extra charge from WhatsApp itself. Just connect and go.

Is WhatsApp Free Internationally?

Yes, WhatsApp is free to use globally. It doesn’t charge for sending messages or making voice/video calls, no matter where the other person is.

The only cost comes from your internet connection:

  • Free when using Wi-Fi
  • Potentially expensive when roaming without a data plan
  • Affordable when using an international eSIM with prepaid data like Eskimo

Does WhatsApp Use Data when Travelling?

Yes. WhatsApp relies entirely on internet data. Here’s a rough guide to how much:

  • Text message: almost none
  • Image: ~100–300KB
  • Voice call: ~0.3MB per minute
  • Video call: ~3–5MB per minute

To reduce usage:

  • Use Wi-Fi where available
  • Disable auto-downloads
  • Enable low data mode for calls

To further reduce your data usage, check our guides on how to do just that for iOS and Android.

Does WhatsApp Charge for Texts Overseas?

No. WhatsApp does not charge for messages at all, domestic or international. You can message anyone in the world as long as they have WhatsApp and you’re both online.

This makes it one of the most reliable and cost-effective SMS alternatives for travelers.

Does WhatsApp Charge for International Calls?

No. All WhatsApp calls are free. No per-minute charges, no international fees. You only use data.

To avoid surprise costs:

  • Don’t make long video calls on cellular unless you're on a data plan
  • Stick to voice or Wi-Fi where possible

How to Use WhatsApp Voice and Video Calls Abroad

Making WhatsApp calls abroad is simple:

  1. Open a chat
  2. Tap the phone or video icon
  3. Start talking

Your call will use whatever internet connection you have. If call quality is poor, try switching from mobile data to Wi-Fi or vice versa.

Make sure WhatsApp has permission to use your microphone and camera. This is a common issue on new devices.

Why Does WhatsApp Say “Call Unavailable”?

The “Call Unavailable” message usually means the person you're trying to reach can’t receive the call right now. Common reasons include:

  • They have no internet connection or on Airplane mode
  • Their phone is off
  • They’ve blocked your number
  • WhatsApp does not have microphone or camera permissions on your device
  • The network you're using blocks VoIP services (mostly applicable to public Wi-Fi)

If you see this message often while traveling, try switching to mobile data or using a different Wi-Fi network.

How Can I Call WhatsApp Customer Care?

There’s no phone number for WhatsApp support. You’ll need to use the app or their website:

Support is usually via email and can take 24–48 hours. Be specific about your issue and device type to speed things up.

Using AI in WhatsApp While Traveling

If you're already using WhatsApp to stay connected on the road, you can also use it to access AI tools like ChatGPT or Meta AI for travel help. These tools work inside WhatsApp chats and are optimized for mobile use, making them easy to use even with a weak connection or on the go.

If you're curious, check our full guide on how to use AI in WhatsApp, including popular options like ChatGPT and Perplexity AI.

Use WhatsApp Internationally with an eSIM

Whether you're texting your Airbnb host, calling family back home, or checking travel tips with AI, WhatsApp makes it easy to stay connected abroad. And with an eSIM, you can skip roaming charges and get reliable data the moment you land.

Want to try it risk-free? Our global eSIM comes with a limited-time free trial.

FAQs

How old do you have to be to use WhatsApp?

You must be at least 13 years old in the US to use WhatsApp. In some countries, the minimum age is higher, depending on local regulations. However, you don't have to worry about any privacy concerns as you are not required to upload any ID to verify your age.

Can I use WhatsApp on a laptop?

Yes. You can either use WhatsApp Web in your browser or download the desktop app for Windows or Mac. Just scan the QR code with your phone to sync your account, similar to how you would use on WhatsApp Web.

How do I use WhatsApp Web?

On your phone, go to Settings > Linked Devices, then scan the QR code at web.whatsapp.com. This lets you access your chats from your browser.

Can I use WhatsApp without a phone number?

No. A valid phone number is required to set up a WhatsApp account. After that, you can use it on multiple devices, but initial setup still requires SMS verification. This applies to WhatsApp on mobile, tablet or web version.

Does WhatsApp show your phone number?

Yes. Your number is visible to people you chat with on WhatsApp. You can manage what profile information they see, like your photo, status, and last seen, under Privacy settings - but not your mobile number.

Author Image
Hansel Arief
I've been the Digital Lead for Eskimo eSIM since 2021. My favorite thing to do while travelling is to find lessser-known hidden gems and try authentic, local cuisines.
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