How to Check Remaining Data on Your eSIM (iPhone & Android)

Running out of data mid-trip is one of the most frustrating travel moments — and it's entirely avoidable. Most eSIM providers give you multiple ways to check how much data you have left: through your phone's built-in settings, through a provider app, or via a simple USSD code. Here's how to do it on every major device.

How to Check eSIM Data Usage on iPhone

Apple's built-in data usage tracker is the fastest method, but there's one important thing to know before you rely on it: the "Current Period" counter resets only when you reset it manually — not at the start of your eSIM plan. You'll need to reset the counter when you activate a new plan to get accurate readings.

1. Open Settings and tap Cellular (or Mobile Data in some regions).
2. If you have more than one SIM or eSIM, tap the eSIM line you want to check (it'll be listed by name or carrier).
3. Scroll down to "Current Period" — this shows total data sent and received since the last reset.
4. To reset the counter (do this when you activate a new plan): scroll to the bottom of the Cellular settings page and tap "Reset Statistics".

How to Check eSIM Data Usage on Samsung

1. Open Settings and tap Connections.
2. Tap Data usage.
3. At the top, tap the SIM selector and choose your eSIM line.
4. The graph shows data used in the current billing cycle. Tap "Mobile data usage" for a per-app breakdown.

Samsung One UI also supports a data limit warning — you can set an alert threshold so your phone notifies you when you've used a certain amount. Go to Data usage → tap the three-dot menu → "Set data limit" or "Data limit and billing cycle."

How to Check eSIM Data Usage on Stock Android / Pixel

1. Open Settings and tap Network & Internet.
2. Tap SIMs or Mobile network.
3. Select your eSIM line from the list.
4. Tap Data usage to see usage for the current period with a per-app breakdown.

Check Remaining Data via Your Provider's App

Most eSIM providers have a dedicated app or web portal that shows your exact remaining data allowance in real time — which is more accurate than your phone's built-in counter, because it reads directly from the provider's network records rather than tracking device-side usage.

Look for the app in your order confirmation email — it's usually linked there alongside your QR code or activation instructions. When you open the app, sign in with the email you used to purchase the plan, and navigate to "My plans," "Active eSIM," or "Data usage" to see your balance.

If you can't find the provider's app or portal, the provider's website usually has a "My account" section where you can log in and check your usage. This method works even if you don't have a stable data connection — you can access it over hotel Wi-Fi.

Check Remaining Data via USSD Code

Some eSIM providers support USSD codes — short dial strings that query the network directly and return your balance as a text message. Open your phone dialler, make sure the eSIM line is selected, and dial the code:

• *102# — used by several providers; shows remaining data balance
• *131# — alternative code used by some providers
• *101# — account balance (some providers)

USSD support varies by provider. If a code doesn't work, the network won't return an error — the call simply disconnects without a response. Check your provider's documentation or support page to confirm which codes they support.

What to Do When You're Running Low

If you're approaching your data limit mid-trip, you have a few options. The cleanest is to top up with the same provider — many eSIM providers let you add data directly from the provider app without buying a new plan. The alternative is to buy a separate plan from a different provider and install it as a second eSIM profile (most modern iPhones and Androids support multiple installed eSIM profiles, though only one can be active at a time).

While you sort out your top-up, the quickest data savings: turn off video autoplay in social media apps, switch WhatsApp video calls to voice only, and make sure your phone is connecting to Wi-Fi when available rather than defaulting to the eSIM line. These three changes can cut data usage by 50–70% in a typical day.