Top Up an eSIM with Crypto: Add Data or Wallet Balance

To top up a HelloSIM eSIM with crypto, add money to your HelloSIM wallet using "Pay with crypto", then pay for the extra data from that balance. Wallet top-ups start at €1.00, and once the crypto payment is confirmed, the balance pays for top-ups and new eSIMs instantly.

This two-step route keeps the part that takes time, the blockchain confirmation, away from the moment you actually need data. Below is how each step works, which coin to use and how to time it.

How topping up an eSIM works

A HelloSIM eSIM is not used once and thrown away. When your plan is running low, more data can be added to the same eSIM, the one that is already installed on your phone. There is no second eSIM to set up.

Managing eSIMs and topping up is what a HelloSIM account is for. Guest checkout is enough to buy a plan, but an account lets you manage your eSIMs and add data to them, on the website or in the iPhone or Android app.

How to add money to your HelloSIM wallet with crypto

1. 1In your HelloSIM account, go to your wallet and choose to add money.
2. 2Enter the amount in euros. The minimum is €1.00.
3. 3Select "Pay with crypto". You are taken to a secure payment page run by HelloSIM's crypto payment processor.
4. 4Pick a coin and the network you hold it on. Your euro amount is converted into that coin on the spot, and you get the address, the QR code and the figure to send.
5. 5Send exactly that amount, on that network, from your wallet or exchange. The network fee is paid by you on top.
6. 6When the payment is confirmed on the blockchain, the balance is ready to spend.

The usual crypto rules apply here too. The request stays open for 1 hour. Sending less than the amount shown, or sending on a different network, can leave the payment incomplete. If the request expires, start a new one, and never send to the expired one.

Paying for extra data from your balance

With money in the wallet, the top-up itself is the quick part. Choose the eSIM you want to add data to, pick the top-up and pay from your wallet balance. Payment from the balance is instant, so there is no confirmation to wait for and no network to select.

The same balance works for new purchases. If your next stop needs a different plan, you can pay for that eSIM from the wallet as well. And if you are simply buying a new eSIM for a new trip, you do not have to go through the wallet at all: "Pay with crypto" is a payment option at checkout, so a single crypto transfer can pay for the plan directly. The wallet is the more comfortable route for repeat purchases.

Which coin to use and how much to add

The payment page lists about 100 coin and network options. Among them are USDT on eight networks, USDC on five, and coins such as BTC, ETH, LTC, SOL and TRX. For wallet top-ups, two general points are worth weighing.

• Network fees. Every transfer carries a fee that you pay on top. On a small amount, a network known for low fees keeps that cost in proportion.
• Frequency. Adding money once for the whole trip means one transfer and one fee. Adding a little each time you need data means paying the fee each time.

A reasonable approach is to estimate the data you are likely to add during the trip and fund the wallet for that in one go. Add what you expect to use.

When to top up: do it before you run out

The timing of a crypto payment is not fully in your hands. The balance is available when the payment is confirmed on the blockchain. That depends on the coin and network you chose, so HelloSIM makes no promise about the number of minutes. Some networks confirm quickly; Bitcoin can take longer when the network is busy.

That leads to two practical habits:

• Fund the wallet while you still have data or Wi-Fi. If your plan has run out completely, you will need another connection just to make the payment.
• Keep a small balance in reserve. Then an urgent top-up is an instant payment from the wallet, not a blockchain transfer made under pressure.

Remember that all sales are final: an eSIM cannot be refunded once delivered, apart from a verified technical fault that HelloSIM cannot resolve. The complete terms are on HelloSIM's "Pay with crypto" page.

Stay connected for the whole trip

Add money to the wallet with crypto before you need it, top up the same eSIM when your data runs low, and you can stay online from the first day of the trip to the last without reaching for a bank card.