Which eSIM is Best for Visitors to the USA? (Unlimited Data Guide for Tourists)

travelers now turn to eSIM technology, the best options for tourists seeking unlimited data with a USA eSIM.

Traveling to the United States and wondering how to stay connected without hefty roaming charges? You're not alone. Many travelers now turn to eSIM technology as an easy way to get mobile data without swapping physical SIM cards. In this guide, we'll explore the best options for tourists seeking unlimited data with a USA eSIM. We'll cover popular providers, compare plans, and answer common questions to help you decide which eSIM might be right for your travel needs. Whether you're using WhatsApp to stay in touch, navigating with Google Maps, or sharing your trip on social media, we've got the practical tips you need for smooth, stress-free connectivity during your USA adventure.

What Is an eSIM and Why Use One in the USA?

An eSIM (embedded SIM) is a digital SIM card built into your phone that you can activate with a mobile plan without using a physical SIM card. For travelers visiting the USA, eSIMs are a game-changer for several reasons:

• Instant Connectivity: Purchase an eSIM plan online and activate it within minutes. You can land in the U.S. with your data plan already set up, avoiding the hunt for a SIM card kiosk at the airport.

• Keep Your Number: With eSIM, your phone can handle two lines. This means you can add a U.S. data plan via eSIM while keeping your normal number on your physical SIM active for calls or texts from home. No need to miss important messages while abroad.

• Avoid Roaming Fees: International roaming charges can be very expensive. An eSIM lets you use a local or travel data plan in the USA at a fixed cost, so you won't come home to a shocking phone bill.

• Convenience: No tiny SIM cards to swap or lose. You simply scan a QR code or install a provided eSIM profile, and boom – you’re connected. It's especially handy for tech-savvy travelers bouncing between countries or anyone who dislikes fiddling with SIM tools.

Modern smartphones (iPhone XR/XS and later, Google Pixel series, Samsung Galaxy S20 and up, etc.) largely support eSIM. Just make sure your device is unlocked (not tied to your home carrier) so that a U.S. eSIM plan will work. In short, eSIMs offer a flexible and travel-friendly way to stay online, making them popular among tourists exploring the U.S.

Unlimited Data eSIM Options for USA Visitors

One big reason travelers ask “Which eSIM is best for visitors to the USA?” is the lure of unlimited data. Unlimited plans let you use maps, stream music, video call, and share your journey without constantly monitoring your data usage. Several eSIM providers offer unlimited data options for U.S. travel – but with some fine print to know.

First, "unlimited" often comes with a Fair Use Policy (FUP). This means a plan might provide truly unlimited data but slow down your speed after a certain amount of high-speed usage (for example, after 1–2 GB per day at full 4G/5G speeds, the rest of that day might be throttled to a lower speed). Not all providers do this, but it's common, so always check the details. A truly unlimited high-speed plan (no throttling at all) tends to be rarer and usually more expensive.

Despite that, unlimited eSIM plans can be fantastic if you need constant connectivity. Below, we compare some major eSIM providers for U.S. tourists and their unlimited data offerings:

Provider	Unlimited Data Plan	Duration Options	Price (approx)	Key Notes
Holafly	Yes – Unlimited data (4G/5G with FUP*)	5, 7, 10, 15, 21, 30+ days	~$19 (5 days), up to ~$85 (30 days)	No local number (data-only); Hotspot tethering limited (≈1GB/day); Uses AT&T/T-Mobile networks.
Airhub	Yes – Truly unlimited high-speed data	15 or 30 days (multiple plans)	~$32 (30 days)	Includes unlimited calls/SMS with some plans; Activates immediately on purchase (plan starts right away); Uses T-Mobile network; Hotspot not allowed on some unlimited plans.
Nomad	No true unlimited (offers high-data plans)	7, 15, 30 day packages	~$15 (30 days for 10GB); ~higher for larger packs	Data plans up to 20–100 GB available; Also offers "daily top-up" plans (daily data allotment that resets every 24h); Uses AT&T & Verizon networks; affordable but no unlimited throttle-free plan.
Maya Mobile	Yes – Unlimited (daily high-speed reset)	5, 10, 15, 30 days	~$9 (5 days), ~$70 (30 days)	Unlimited with daily high-speed data allowance (resets each day); Hotspot sharing allowed (e.g. share data with friends); Uses Verizon & AT&T networks; Data-only (no voice/SMS).
Airalo	No – (Max 20 GB data packs)	7, 15, 30 days (various data sizes)	~$36 (10 GB, 30 days)	Very popular for budget travelers; No unlimited plan (fixed data only); Some plans include calls/SMS**; Uses T-Mobile & Verizon networks; Offers a free 500 MB trial eSIM for new users.

*FUP: Fair Use Policy (may reduce speeds after a certain high-speed data amount).
*Airalo offers a few plans that include limited call minutes/SMS, but these are still capped-data plans, not unlimited.

As the table shows, Holafly stands out for offering true unlimited data on all its U.S. plans – you simply pick how many days you need. This means you can share endless photos and videos without hitting a data cap. The trade-off is cost: Holafly’s unlimited eSIM is on the pricier side (around $19 for 5 days, ~$85 for 30 days). According to a TechRadar review, many travelers find the price worth it for stress-free unlimited data, but if you're a light data user, a fixed-data option might be more economical. Holafly’s plans are easy to use (just scan a QR code to install) and offer reliable coverage via major U.S. networks, though note that you cannot share its unlimited data via hotspot beyond ~1GB per day – and there’s no local US number included for calls or texts.

Airhub is a newer contender recommended by some avid travelers for truly unlimited high-speed data. Their 30-day U.S. eSIM comes with unlimited 5G data and even unlimited voice minutes and SMS, all for roughly $30-35 – a great value. The catch: once you buy an Airhub eSIM, it activates immediately, so you should purchase it right before your trip or on arrival (since the 15 or 30 days start ticking as soon as you pay). Also, some Airhub plans don’t support tethering (hotspot), so you can’t share data with your laptop or other devices. If that’s not a deal-breaker, Airhub is an excellent option for power users who need lots of fast data on a budget.

Nomad and Maya Mobile are popular for those seeking flexible plans. Nomad does not offer a single unlimited plan without caps – instead, it provides large data bundles (up to 20 GB or even 50-100 GB in some cases) and something they call daily plans. A Nomad "daily" plan might give you a set amount of high-speed data per day that resets each day of your plan (for example, a plan that gives you ~2 GB high-speed every day). This effectively feels like unlimited if your daily use stays under the cap, but heavy users might hit the throttle each day. Nomad’s pricing is attractive (e.g. around $15-$20 for 10–20 GB on a 30-day plan) and it uses top networks like Verizon or AT&T, ensuring good coverage. Maya Mobile, on the other hand, explicitly offers "unlimited daily data" options. With Maya, if you buy a 15-day unlimited plan, you get a fresh allotment of fast data each day (and you can use your phone’s hotspot to share that data). This is great for sharing connectivity among a travel group. Just be aware that “unlimited daily” still means you could hit a slow-down per day if you use a ton of data before it resets at midnight. Both Nomad and Maya are purely data (no phone number for calls), so you’d use app-based calling or rely on your primary SIM for any voice needs.

Finally, Airalo deserves a mention as one of the most well-known eSIM marketplaces. While Airalo does not offer unlimited data plans for the USA, it provides very affordable fixed-data packages (from 1 GB up to 20 GB). Many cost-conscious travelers use Airalo to snag, say, a 5 GB or 10 GB pack and find that sufficient for a short trip. The advantage is lower cost (e.g. 10 GB for around $26-37) and the ability to top-up if you run low. Airalo even has a free 500 MB trial eSIM for first-time users, which can be a nice quick fix to get online and verify that eSIM works on your phone. If your usage isn’t heavy (no hours of video streaming), an Airalo plan might be the best value. Just remember, with a capped plan you’ll need to monitor data or buy an extra pack if you run out.

Pros and Cons of Using an eSIM for US Travel

Every technology comes with its upsides and downsides. Here’s a quick rundown of the pros and cons of using an eSIM during your USA trip:

Pros of using an eSIM in the USA:

• Immediate Setup: Buy online and activate in minutes – no need to find a store upon arrival. You can have internet access from the moment you step off the plane.

• No Physical SIM Hassle: No tiny SIM cards to lose or swap out. Keep your primary SIM in your phone and just add the eSIM digitally.

• Cost Control: Prepaid eSIM plans mean you know exactly what you’ll pay. It's often far cheaper than enabling international roaming on your home carrier.

• Flexible Plans: Many eSIM providers offer a range of packages (from 1-day unlimited passes to multi-week plans), so you can pick one that fits your trip length and data needs.

• Multi-tasking: With dual-SIM capabilities, you can continue receiving calls/texts on your regular number while using data on the eSIM. This is great for staying reachable to family or using services like banking that send verification SMS to your main number.

Cons of using an eSIM in the USA:

• Data Only (Usually): Most tourist eSIM plans are data-only. They won't give you a local phone number for voice calls or SMS. You’ll rely on VoIP apps (Skype, WhatsApp, etc.) or your primary SIM for any calls. If you need to call restaurants or hotels on the go, this can be a limitation.

• Requires Compatible Phone: You must have an unlocked, eSIM-capable device. If your phone is older or locked to a carrier, you might be out of luck. Always check compatibility before purchasing a plan.

• No In-person Support: With a physical SIM, you might walk into a store for help. With eSIM, support is online-only. If something goes wrong, you’ll be chatting or emailing the provider – which could be frustrating if you're not tech-savvy or don't have a backup connection.

• Potential Restrictions: Some eSIM plans disable hotspot tethering or have speed caps after a threshold (especially “unlimited” plans with fair use limits). Also, coverage can vary – one provider might use only T-Mobile’s network, which could have gaps in rural areas compared to another using AT&T or Verizon. Choosing the wrong provider for your destination could result in weaker signal in some regions of the US.

• Slight Learning Curve: If it's your first time using an eSIM, the installation process (scanning QR codes, managing digital SIM profiles in settings) might feel a bit confusing. The good news is that most providers offer step-by-step guides, and after doing it once, it feels pretty easy!

How to Buy and Activate a US eSIM (Step-by-Step)

One of the best things about eSIMs is how easy it is to get started. You can (and usually should) set everything up before you travel or while on Wi-Fi, so that once you're in the USA, your unlimited data (or chosen plan) kicks in immediately. Here’s a simple guide:

1. Ensure Your Phone Supports eSIM: Double-check that your smartphone is eSIM-compatible and unlocked for use on other networks. Most newer iPhones and Android flagships support eSIM. If you're not sure, a quick Google search of your phone model plus "eSIM support" will tell you.

2. Choose a Provider and Plan: Research and select an eSIM plan that fits your needs. For example, decide if you want an unlimited data pass or a specific data cap. You can buy directly from providers like Holafly, Airalo, Nomad, etc., via their official websites or apps. (Tip: It’s often wise to buy before traveling so you can get the QR code and info while you have stable internet.)

3. Purchase and Receive the eSIM QR Code: During purchase, you'll be asked for an email – the eSIM activation QR code or installation instructions are usually sent there (some providers also show a code on the confirmation page or in-app). Save that QR code or activation number.

4. Install the eSIM on Your Phone: On your smartphone, go to the cellular/network settings and look for an option like "Add Cellular Plan" or "Add eSIM". Scan the QR code you received (or enter the activation code manually if provided). Follow the prompts to download the eSIM profile to your device. You may be asked to label the new plan (e.g. "USA Travel Data") and choose default settings for data or calls – you can set your new eSIM as the data line and keep your physical SIM as the line for calls/SMS.

5. Activate Upon Arrival: Many eSIM plans let you install in advance and only start the service when you enable it or when it first connects in the target country. When you land in the US, make sure your eSIM line is turned on in your phone settings. If the plan doesn’t start automatically, you might need to toggle it on or reboot the phone. Once it connects, you should see signal bars from a US carrier (like AT&T, T-Mobile, or Verizon depending on the eSIM). Tip: Turn off data roaming on your primary SIM to ensure all mobile data usage goes through the eSIM (so you don’t accidentally roam on your home SIM).

6. Enjoy Your Data: You should now be online! Test by browsing or sending a message. If you run into any issues, refer to the setup instructions from the provider email, or reach out to their support. Otherwise, you're all set to explore the U.S. with Google Maps, Uber, Instagram, and more at your fingertips.

By following these steps, you can avoid the lines at the airport SIM counters and skip the confusion of foreign mobile plans. Setting up beforehand means the moment your plane touches down, your phone switches on with a local signal ready. This can be a lifesaver for calling a rideshare, pulling up your hotel reservation, or simply letting family know you arrived safely.

FAQ: Common Questions about eSIM for USA Travel

Can I keep my number while using a USA eSIM?

Yes. Using an eSIM for data in the USA doesn’t mean you lose your regular phone number. If your phone supports dual SIM (most eSIM-capable phones do), you can keep your physical SIM (with your home number) in the phone and add the eSIM as a second line. This way, your normal number stays active for calls and texts, while the eSIM provides local data. For example, you can still receive SMS verification codes or calls on your usual number, even as you use the eSIM for internet. Just remember to disable data roaming on your home SIM, so you don’t incur roaming charges – use the eSIM for data instead. In short, you get the best of both worlds: your original number for connectivity with friends/banks, and the eSIM for cheap data in the USA.

Should I buy an eSIM before travel or after arriving?

It’s generally best to buy and set up your eSIM before your trip. Purchasing ahead of time means you can install the eSIM while you have a reliable internet connection and sort out any activation steps without the pressure of being in a new place. Once installed, you usually have the flexibility to activate it upon arrival in the USA (many plans only start when you connect in the destination or when you enable the line). That said, if you forget or prefer to wait, you can also buy an eSIM after arriving – as long as you have some form of internet to complete the purchase and download (airport Wi-Fi can help, or a cafe hotspot). Keep in mind that some U.S. carriers (like T-Mobile or AT&T) offer tourist eSIMs in their stores, but those often cost more than online eSIM deals. So, buying online beforehand is convenient and often cheaper.

Can you use WhatsApp with an eSIM?

Absolutely. WhatsApp will continue to work as it is linked to your phone number (and the app), not the specific SIM card providing data. When you use an eSIM for internet, WhatsApp and other messaging apps use that data connection. You’ll keep your WhatsApp account with the same number you registered (usually your home number). Just make sure you don’t log out of WhatsApp or attempt to change the number to the eSIM’s number (most travel eSIMs don’t even come with a phone number). As long as your WhatsApp is set up before, you can use it over the eSIM data just like on Wi-Fi. This means you can call or message friends and family on WhatsApp freely, even though your physical SIM might not have data in the USA. Many travelers do this: they use an eSIM for connectivity and continue chatting on WhatsApp as if nothing changed.

How can I get a free eSIM in the USA?

Believe it or not, there are ways to snag free temporary eSIM service in the U.S. One popular option is through carrier trial programs. For instance, T-Mobile offers a Network Pass program that gives eligible users a free eSIM with unlimited data for up to 3 months as a trial of their network. You don’t have to be a T-Mobile customer; you just need an unlocked eSIM-compatible phone and the T-Mobile app. This trial eSIM provides a U.S. phone number, unlimited data (with possible speed slows after a large usage like 50 GB), and lasts 30 to 90 days for free – perfect for many tourists. Similarly, other carriers like Verizon and AT&T have started free eSIM trial offers (Verizon's trial gives you 30 days with 100 GB of high-speed data, for example). These are intended for people considering switching networks, but tourists can often take advantage too. Aside from carrier trials, some eSIM providers give small welcome credits or promo data for new users. For example, Airalo’s app at one point offered a free 500 MB trial eSIM for the USA, allowing you to test out the service for a few days. Keep in mind that free trials are usually one-time and have some limitations, but they can be a fantastic way to get connectivity at no cost during a short trip.

Does an eSIM offer unlimited data?

An eSIM itself is just the technology – whether you get unlimited data depends on the plan you purchase. Many eSIM providers do offer unlimited data plans for the USA (as discussed above, providers like Holafly, Airhub, and others have unlimited options). However, it's important to read the details. "Unlimited" might mean unlimited at full 4G/5G speed, or it might mean a high-speed allotment that becomes slow 2G speed if you use too much in a day. Always check the provider’s fair use policy. If truly unrestricted data is what you need, look for plans explicitly stating no throttling. Also note, unlimited data eSIM plans usually cost more than limited ones. If you see a very cheap eSIM, it likely has a fixed data cap (e.g. 5 GB or 10 GB). In summary, eSIM plans can have unlimited data, but you have to pick a plan that specifically includes it – and understand any caveats in the fine print.

Conclusion: Stay Connected with the Right eSIM

Staying connected in the USA is easier than ever for travelers, thanks to the flexibility of eSIM technology. The best eSIM for visitors to the USA really comes down to your needs and preferences. If you crave unlimited data and don't want to worry about hitting a cap, a provider like Holafly (with its truly unlimited plans) or Airhub (with affordable unlimited and voice support) could be your top pick. If you’re more of a casual traveler who just needs Google Maps and a bit of social media, a smaller plan from Airalo or Nomad might do the trick at a fraction of the cost.

Remember to consider factors like coverage (which U.S. networks the eSIM uses), whether you need hotspot tethering, and how long you'll be staying. It’s also wise to set up your eSIM before you travel so you're not stressed on arrival day. With the right plan in place, you can confidently explore America’s cities, roadways, and national parks, all while booking Ubers, checking restaurant reviews, and sharing your favorite moments online in real time.

In a country as vast and connected as the United States, having unlimited data or a reliable mobile connection can greatly enhance your travel experience. So, choose the eSIM plan that fits your journey, and enjoy the freedom of being online whenever you need – no physical SIM cards required. Happy travels and happy browsing!