Best SIM card for international travel in 2025

Tello offers the best SIM card for low data users

Tello 2GB SIM card for $10/mo

• T-Mobile 5G & 4G LTE network
• Unlimited talk and text with 2GB data
• Instant online activation

5

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Tello phone plans keep things simple with their wireless service. None of those hidden fees or long-term contracts that'll leave you feeling trapped.

With free international calls to 60+ countries on all plans, including Canada and Mexico, and a range of data allowances suitable for light to heavy users.

Tello keeps costs low with flexible plans that let you choose exactly how much data, talk, and text you need. A set data plan can help you save and manage usage.

All plans come with mobile hotspot, with unlimited plans offering up to 5GB, but there are no multi-line discounts. Each line is billed separately, though Tello's pricing remains competitive.

Activation is quick and easy. With eSIM it takes just a few taps, or you can have a SIM card shipped directly to you.

Tello is one of the most affordable and flexible choices on T-Mobile's network, but I also weighed a few other options.

Ultra Mobile is a solid pick for international calling, but its plans are more expensive for the same amount of data. Metro by T-Mobile, despite being owned by T-Mobile, comes with higher costs and often requires an in-store visit. While Boost Mobile has competitive pricing, but hidden fees and inconsistent customer service make it harder to recommend.

In the end, Tello's combination of affordability, customization, and hassle-free switching makes it the best choice.

• Build-your-own plan – Tello lets you customize your plan, so you only pay for the data, minutes, and texts you actually need-no wasted money on extras.
• Affordable, contract-free pricing – Tello keeps costs low with transparent pricing and no long-term commitments, making it easy to switch or adjust your plan anytime.
• Quick and simple activation – With eSIM, you can activate your plan in just a few taps. If you prefer a physical SIM, Tello ships it for a small fee.

Visible offers the best value unlimited SIM card

Visible unlimited SIM card for $25/mo

• Verizon 5G & 4G LTE network
• Unlimited talk, text and data
• Instant online activation

3.4

Read our Visible review

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Visible keeps things easy with two affordable unlimited plans on Verizon's network. There are no contracts and no hidden fees.

With unlimited talk, text, and data starting at just $25/month, plus mobile hotspot included, you get great value without surprises. The Visible+ plan offers 50GB of premium data and access to Verizon's 5G Ultra Wideband for even faster speeds.

Visible keeps it simple with two unlimited plans that have no contracts, hidden fees, or surprise costs. Both plans come with mobile hotspot access at 5–10 Mbps speeds.

The Visible+ plan includes free international calling to 30+ countries and texting to 200+ destinations. eSIM activation allows for instant setup, eliminating the wait for a SIM card.

While there are no multi-line discounts, the affordable pricing makes it ideal for individuals. However, customer support is only available online.

If you want a budget-friendly carrier on Verizon's network, Visible is the best option for unlimited data without extra fees-but I also reviewed a few others.

Tracfone offers low-cost prepaid plans, but speed restrictions make it less appealing for heavy data users. Xfinity Mobile has competitive pricing, but it's limited to Xfinity internet customers. Spectrum Mobile is another affordable alternative, but you need Spectrum home internet to sign up.

Thanks to its transparent pricing and unlimited data, Visible remains the best overall pick.

• Straightforward unlimited plans – No contracts, hidden fees, or surprise charges-just simple, all-inclusive pricing.
• Built-in extras at no extra cost – Get mobile hotspot access on all plans, plus international calling and texting perks with Visible+.
• Fast and easy setup – eSIM activation lets you start service in minutes without needing to wait for a SIM card.

Total Wireless offers the best SIM card with Verizon coverage

Total Wireless unlimited SIM card for $50/mo

• Verizon 5G & 4G LTE network
• Unlimited talk, text and data
• Instant online activation

4

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Total Wireless keeps things simple with no contracts, no hidden fees, and affordable plans on Verizon's network.

With unlimited talk and text, generous high-speed data options, and mobile hotspot included. Plus, international calling to 85+ destinations and roaming in Canada and Mexico make staying connected easier than ever.

Get Verizon's reliable coverage without the high cost with Total Wireless. Plans include unlimited talk and text, plus up to 15GB of hotspot data.

International calling to 85+ destinations and roaming in Canada and Mexico are included with select plans. There are no contracts, and you can manage everything online for easy switching.

I've explored other low-cost carriers on Verizon's 5G and 4G LTE networks, but many have limitations.

Tracfone keeps costs low with its pay-as-you-go model, but it offers limited high-speed data and fewer perks. Xfinity Mobile stands out with competitive pricing, but only those with Xfinity internet can sign up. Spectrum Mobile is another affordable choice, but again it's restricted to Spectrum home internet customers.

• Big savings on Verizon's network – Enjoy top-tier coverage without the premium pricing.
• Great extras for everyday use – Up to 15GB of hotspot data, plus international calling and roaming benefits on select plans.
• No commitments, full control – Contract-free plans with easy online management for seamless plan adjustments.

Tello offers the best SIM card with T-Mobile coverage

Tello unlimited SIM card for $25/mo

• T-Mobile 5G & 4G LTE network
• Unlimited talk, text and data
• Instant online activation

5

Read our Tello review

See at Tello

Tello phone plans keep things simple with their wireless service. None of those hidden fees or long-term contracts that'll leave you feeling trapped.

With free international calls to 60+ countries on all plans, including Canada and Mexico, and a range of data allowances suitable for light to heavy users.

Tello offers flexible, budget-friendly plans, allowing you to pick exactly how much data, talk, and text you need.

All Tello plans support mobile hotspot, with unlimited plans limited to 5GB, but they don't offer multi-line discounts-each line is billed separately. However, their low rates make individual plans a great deal.

Since Tello is online-only, activation is seamless-eSIM setup is near-instant, or you can get a SIM card by mail.

Tello is among the best budget-friendly carriers on T-Mobile's network, but I compared a few others as well.

Ultra Mobile works well for international calls, but its plans cost more for the same data. Metro by T-Mobile, despite being part of T-Mobile, is pricier and often requires an in-store sign-up. Boost Mobile has appealing rates, but its extra fees and spotty customer service make it less reliable.

Thanks to its unmatched affordability, customizable plans, and easy switching process, Tello remains the best pick.

• Personalized plan options – Tello allows you to pick and choose your plan features, so you only pay for what you actually use.
• One of the cheapest carriers available – Tello provides unbeatable value with low-cost plans and no contracts, giving you total flexibility.
• Fast online activation – eSIM lets you activate your plan in minutes, or you can request a free SIM card to be delivered to your door.

Red Pocket offers the best SIM card with AT&T coverage

Red Pocket unlimited SIM card for $30/mo

• AT&T 5G & 4G LTE network
• Unlimited talk, text and data
• Instant online activation

4

Read our Red Pocket review

See at Red Pocket

The Red Pocket Mobile unlimited plan is powered by the AT&T wireless network. And if you're looking for an unlimited plan for the whole family, they are one of the best MVNOs for family plans, with a $20 discount for each additional line added.

You'll need to pay a setup fee, but after that, choosing a family plan could save you hundreds of dollars a year.

With Red Pocket Mobile, you get unlimited talk and text, no hidden fees, and up to 30GB of high-speed data, including hotspot access.

Adding extra lines saves you money with multi-line discounts, although there's a setup fee for each line.

They also offer a 7-day money-back guarantee on eSIM plans and free international calling to 80+ countries, plus free roaming in Mexico and Canada.

Many low-cost carriers provide service on AT&T's 5G and 4G LTE networks, and I've reviewed many of them. Cricket Wireless, AT&T's own prepaid brand, tends to be more expensive than its competitors. H2O Wireless includes international calling, but its plans don't offer the same value. While Good2Go Mobile has competitive pricing but lacks variety in its plan options and isn't as well known.

With its ideal blend of affordability, strong features, and flexibility, Red Pocket is my top recommendation for AT&T customers.

• Multi-line discounts – Add extra lines and get a discount off each one, making it easy to save on family plans.
• International perks at no extra cost – Free calls to 80+ countries and roaming in Mexico and Canada add extra value.
• No hidden fees & risk-free sign-up – Simple, transparent pricing and a 7-day eSIM money-back guarantee let you try the service worry-free.

How to choose the best travel SIM card

Which network do you prefer?

Low-cost carriers are powered by the same 5G and 4G LTE networks as the big 3. According to a 5G Experience Report (2023) by Opensignal, T-Mobile has the most extensive 5G coverage in the United States. If you have a preference for a specific network, you can find an MVNO that operates on that network. To discover the best cell phone service in your area, make sure to use our coverage checker.

How much data do you need?

Do you really need a prepaid SIM card for unlimited data? The big 3 wireless companies want you to believe so, but in reality, the average monthly cellular data consumption is around 10GB. Because if you spend most of your time at home or work on Wi-Fi, it's likely your cellular data usage will be much lower. You can pick a plan with enough data to fit your needs with cheap cell phone providers, meaning if you use less, you can pay less. But if you do choose an unlimited data SIM card, be aware that high-speed data is normally capped.

Is mobile hotspot data included?

Many MVNOs permit the usage of hotspot data. However, they impose restrictions on the quantity of data that can be used through tethering. The specific limit varies depending on the carrier and plan that you select. Additionally, some low-cost carriers provide exclusive data only SIM cards designed specifically for iPads, tablets, and mobile hotspots.

What's the monthly cost?

While an unlimited data SIM card with the big 3 wireless costs around $75-90 per month, the best MVNOs offer budget-friendly SIM cards, ranging from $5-35 per month without compromising coverage or data speeds. Watch out for hidden fees & taxes; some providers include these in the price, and others, such as Verizon and AT&T, don't.

How many lines do you need?

With big wireless, you only get the low advertised price if you buy four lines. With low-cost carriers, the price you see is what you pay, even for one line. Some MVNOs also offer further discounts for multi-line plans.

Can I bring my own phone or buy a new device?

While big wireless prioritizes keeping their customers in a perpetual cycle of phone upgrades, MVNOs advocate for bringing your own device. This empowers you to regain control and only switch phones when it's convenient for you. In the event that you do decide to buy a new phone, most MVNOs provide the option for 0% financing spread across 1-2 years.

Are there any promotions?

Promotions from big wireless can seem great at first. But once you read the fine print, it often leads to buying things you don't need and committing to 3-year phone contracts. Most MVNOs offer short-term introductory discounts for new customers, and their pricing is much clearer.

Are there any perks?

The big 3 wireless plans normally come with "complimentary" TV subscriptions, but these often become paid subscriptions that are automatically included on your bill after a few months. Although some budget-friendly carriers like US Mobile do provide plan choices with free subscription services, we generally advise keeping these subscriptions separate to avoid paying for unnecessary months of service.

What international travel features are available?

Most MVNOs offer free international calls to many countries. But when you're traveling abroad, there are different features you'll need, for example, roaming. If this is important to you, you can find a variety of carriers offering SIM cards for international travel.

Do they have parental controls?

Many MVNO carriers offer parental control features that enable parents to monitor their children's phone usage and data consumption. With parental controls, you can set data limits, restrict access to certain apps or websites, and even track your child's location. Some AT&T MVNOs offer these features as part of their standard plans, or you'll find this feature on your cell phone.

What are the SIM card sizes?

The SIM card you need will depend on your device. Most smart devices now use a nano-SIM or eSIM, but some older devices may need a micro-SIM or a standard SIM.

Check out our comparison of the best prepaid SIM cards to ensure you find the best deal.

Find the best cell phone service in your area

Compare the cheapest international SIM plans

SIM cards for international travelers

In the quest for affordable and flexible communication, especially when traveling, prepaid SIM cards have become a pivotal part of helping to stay connected. For travelers jetting from the USA to Europe and other various countries, the GSM technology underlying most prepaid SIM cards ensures phone compatibility, catering to both iPhone, Android, and other smartphones.

Whether you're looking to buy a new SIM card on arrival or opt for a travel SIM card, either is a great option. Also, if your phone is compatible, an eSIM can make this process even easier.

However, your current carrier may offer international plans, but they usually come with a hefty price tag. The best option can be getting a local SIM card, which presents a cost-effective option, often providing a substantial GB of data, free mobile hotspot data, and local call minutes, which are invaluable for internet access to navigate via Google Maps or stay connected through WhatsApp and Skype.

A new SIM card can offer an ideal plan tailored for each destination and guarantee the best rates.

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How I choose the best carriers and plans

To select the best carriers and plans, I evaluated over 30 different carriers.

I rate carriers in five categories, with a star rating from 1-5, with 5 stars being the best. I then calculate the overall star rating using the five categories:

1. Value for money: I compare carriers based on price, features, benefits, and promotions. It's not just about the lowest price but getting the most bang for your buck.
2. Coverage: I look at network 5G and 4G LTE coverage across the US. I use coverage maps to determine service availability and data speeds in urban, suburban, and rural locations.
3. Customer experience: I take into account items such as current user experience, website and app usability, ease of switching, and customer service in terms of availability, channels, and satisfaction ratings.
4. Transparency: I assess whether carrier pricing is clear and straightforward. I examine the fine print to check for hidden fees, confusing terms or conditions, and misleading offers to ensure upfront, honest prices and advertising.
5. Range of choice: I evaluate the diversity of plan options to determine if they fit the individual needs of all customers.

Read more about our carrier ratings methodology and our editorial process.

I regularly update the content so that we're always recommending the latest and best value plans and do my best to ensure the information is accurate.