★★★★★5 out of 5Loved the experience
Everything was easy to find, the ordering process was straightforward, and the quality exceeded my expectations. Definitely one of those websites I’ll be coming back to whenever I need an eSIM.
Viasimo's United States eSIM starts at $1.29 for 500 MB over 1 day, running on AT&T and Verizon with 5G where available. Plans last 1 to 180 days, arrive by email in minutes and install from your phone's settings, with no app.
Duration
Unlimited data · 3 Days ×1
$8.00
Dial *#06# on your phone. If you see an EID number, your phone takes an eSIM. Most phones sold since 2019 do.
Not sure it works on your phone? Check compatibilityHost networks: AT&T / Verizon
Your eSIM picks one automatically; you do not choose or switch between them.
The allowances below are our sizing recommendations, not measurements. The plan beside each one is the cheapest option on this page that covers it.
| You are | Plan for | Cheapest plan that covers it |
|---|---|---|
| LightMaps, messaging and the occasional lookup | About 1 GB a week | $2.001 GB, 7 days |
| TypicalMaps, social, photos and some browsing | About 3 to 7 GB a week | $6.995 GB, 30 days |
| HeavyVideo streaming, video calls and uploads | 10 GB a week or more | $11.9910 GB, 30 days |
| Working or sharingTethering a laptop, calls and cloud sync | 20 GB a week or more | $17.00Unlimited, 7 days |
Charged per day
Your carrier roaming
Queue and plastic
A SIM at the airport
$1.29
Viasimo, one bundle
Only the Viasimo figure is a price: it comes from today’s live catalog. The other two rows are directional, not quoted rates.
Each row puts one of our plans beside the closest plan Airalo and Holafly list for the same destination: the same data allowance and a similar number of days.
| Plan | Viasimo (USD) | Airalo (USD) | Holafly (USD) |
|---|---|---|---|
| 5 GB · 30 days | $6.99 | $13.50 | No comparable plan |
| 10 GB · 30 days | $11.99 | $22.50 | No comparable plan |
| 20 GB · 30 days | $20.99 | $36.50 | No comparable plan |
| 50 GB · 30 days | $46.99 | $42.00 | No comparable plan |
| Unlimited · 7 days2 GB a day at full speed | $17.00 | $25.00 | $27.50 |
Competitor prices collected from their public websites on 23 September 2026. Prices change; check before buying. Competitor prices are in US dollars as each site lists them, not converted. Unlimited plans can carry different fair-use limits from one provider to another.
Sources: Airalo, United States (); Holafly, eSIM for the USA ()
Unlimited runs at full speed up to a fair-use limit, then continues slower.
The United States has no SIM-registration requirement. Nothing to register with a travel eSIM.
Local SIM-registration rules apply to buying a SIM in the country. A travel eSIM is a foreign profile roaming onto the local network, so you are not registering anything locally and there is no counter to queue at.
Checked 23 September 2026 against privacyinternational.org . Rules change — verify anything that affects your trip.
4.8 out of 5 from 4 reviews
★★★★★5 out of 5Loved the experience
Everything was easy to find, the ordering process was straightforward, and the quality exceeded my expectations. Definitely one of those websites I’ll be coming back to whenever I need an eSIM.
★★★★☆4 out of 5Super einfach und zuverlässig
Hat echt alles super funktioniert. Die eSIM war schnell eingerichtet und die Verbindung war die ganze Zeit stabil. Sehr unkompliziert, würde ich auf jeden Fall wieder nutzen.
★★★★★5 out of 5Amazing Experience
Had an amazing experience. Installation was smooth, I really liked the smooth checkout process. This will be my go to.
★★★★★5 out of 5Attractive prices!
What really stood out to me were the prices, to be honest! I really loved the options and variety available. I’ve purchased from many websites before, but the experience here was genuinely great. I’ll definitely shop again and spread the word!
Yes. Your United States eSIM connects automatically the moment you arrive, with no roaming fees and nothing to set up at the airport. The host networks it can use are AT&T, Verizon. Coverage runs on 4G LTE and 5G where the network has rolled it out, and falls back to 4G elsewhere.
Yes, where it has been deployed. 5G runs on AT&T, Verizon in United States, and your eSIM uses it automatically on a 5G-capable phone, dropping back to 4G LTE outside covered areas. No country is covered everywhere, so 5G availability varies by location.
No. AT&T switched off 3G in February 2022 and Verizon in December 2022. T-Mobile retired 3G in 2022 and shut its GSM (2G) network on 3 August 2026. Everything now runs on 4G and 5G. Your eSIM uses AT&T and Verizon. For voice calls on your home SIM, your phone needs to support 4G calling (VoLTE) on US networks.
Yes. The UK government warns that US officials may ask to inspect your electronic devices, emails, text messages and social media when you arrive, and that refusing can delay your entry or result in being refused. An approved ESTA doesn't guarantee entry, so make sure your application is accurate and matches your travel plans.
Only in some areas. The FCC says each 911 call centre decides whether to offer text-to-911, and where it isn't supported you should get an automatic message telling you to call instead. Voice calls are more reliable. Your data-only eSIM can't send SMS, so use your home SIM to call or text 911.
Possibly. The UK government says a UK photocard licence can be used, but some states may also want a 1949-version International Driving Permit, which you must get before leaving the UK. Rules vary by state, so check with each state's Department of Motor Vehicles. Hire companies may have stricter requirements of their own.
For 7 days in United States, Viasimo sells 100 MB for $1.29, 500 MB for $1.59, 1 GB for $2.00, and unlimited data for $17.00. Our sizing recommendation, not a measurement: maps, messaging and the occasional lookup, about 1 GB a week; maps, social, photos and some browsing, about 3 to 7 GB a week. The data calculator on this site works it out from how you actually use your phone.
Installing, keeping your number, topping up and hotspot work the same everywhere: see how it works →
Your eSIM in the United States uses AT&T and Verizon. Both closed their 3G networks in 2022, and the last 2G network in the country, T-Mobile's, went offline in August 2026, so phones now rely on 4G and 5G. Before you land, the UK government warns that border officers may ask to inspect your phone, messages and social media.
Main airports
The US has three national networks: AT&T, Verizon and T-Mobile. Your eSIM uses AT&T and Verizon, so the T-Mobile signal you may see listed in your settings isn't one it connects to.
All the older network layers have now gone:
The practical result is that every call and data session in the US now runs over 4G or 5G. Data on the eSIM works on any phone that supports AT&T's or Verizon's 4G and 5G bands. For calls on your home SIM, your phone needs 4G calling (VoLTE) on US networks. Without it, an older model may show signal but be unable to make a voice call, including to 911. If you're travelling with an old or unusual handset, check this with your home operator before you go.
If you're visiting under the Visa Waiver Program, apply for your ESTA only through the official website, esta.cbp.dhs.gov, or the official ESTA app. The UK government notes that an ESTA without the required selfie photo may need to be redone, so log in and check your application before you fly. An approved ESTA doesn't guarantee entry. Officers can still refuse you if they believe you'll overstay or that your information is inaccurate or incomplete.
The UK government also warns that border officials may ask to inspect your electronic devices, emails, text messages and social media, and that refusing can delay your entry or lead to refusal. Think about what's stored on, or logged in on, the phone you bring. Make sure your ESTA answers match what's on your devices and in your travel plans.
Once you're through, your eSIM should already be connected.
For a life-threatening emergency anywhere in the US, call 911. The Federal Communications Commission says text-to-911 is available only in some areas, because each emergency call centre decides whether to offer it. Where it isn't available, you should get an automatic bounce-back message telling you to call instead. Even where texting works, the FCC says a voice call is still the most reliable option.
Your eSIM is data only: it has no phone number and can't send SMS, so it can't text 911. Keep your home SIM switched on for calls and texts, and if you're travelling with someone, make sure at least one of you has a working voice line.
In severe weather, check the National Weather Service for flash-flood warnings, the National Hurricane Center during hurricane season, and local news for wildfire evacuation orders. In national parks, the UK government advises carrying a map, compass, GPS and a way to communicate, leaving your route with someone and considering a guide. Large areas of parks such as Yellowstone, Death Valley and Big Bend have no signal.
A UK photocard licence is accepted, but the UK government says some states may also require a 1949-version International Driving Permit. You can only get one before you leave the UK. Check the rules for each state you'll drive through on its Department of Motor Vehicles website, and check your hire company's own conditions, which are often stricter. If you have an old paper licence, carry your passport as well.
Watch fuel prices near airports and tourist areas. The UK government notes that petrol stations that don't display their prices usually charge well above the national average. A fuel-price app will find cheaper options nearby before you return the car.
The UK government also advises sticking to main roads, using well-lit car parks and not sleeping in your car by the road or in rest areas. If someone bumps your car, ask them to follow you to a public place before you stop and call the police. Your phone's map and data connection make it easy to find the nearest lit petrol station or shopping centre.
A self-drive loop from Las Vegas through three of the best-known national parks in the US, with a stop at Horseshoe Bend and Antelope Canyon. Suits first-time visitors who want canyon country, and gives an honest picture of how often you will be out of signal.
When to go April to May and September to October are best for walking; July and August are very hot in the canyons and bring monsoon thunderstorms and flash-flood risk, and in winter Bryce and the Grand Canyon rims can be snowy, with the shuttle in Zion paused for part of December.
Day 1 Springdale
About 2.5–3 hours by road from Las Vegas to Springdale (roughly 260 km); Kolob Canyons is just off I-15 near Cedar City.
Pick up your hire car at Harry Reid International Airport and drive north-east on I-15 into Utah. Stop at the Kolob Canyons section of Zion for the short scenic drive to the Timber Creek Overlook, then continue to Springdale at the main entrance. Walk the Pa'rus Trail along the Virgin River at sunset, with views of the Watchman.
Signal AT&T and Verizon 5G in Las Vegas and solid 4G along I-15; Springdale has reasonable 4G, but coverage fades quickly inside the canyon.
Day 2 Springdale
Shuttles start at the Zion Canyon Visitor Center; check the last shuttle time, or face a long walk back.
Take the free shuttle up Zion Canyon Scenic Drive, which is closed to private cars in shuttle season. Ride to the Temple of Sinawava and walk the Riverside Walk to the start of the Narrows, wading upstream if water levels and flash-flood forecasts allow. On the way back, walk to the Emerald Pools from Zion Lodge. Angels Landing needs a permit applied for in advance; it is not available on the day.
Signal Expect little or no signal in Zion Canyon beyond the visitor centre and Zion Lodge; the lodge has public Wi-Fi.
Day 3 Bryce Canyon
About 1.5–2 hours by road from Springdale to Bryce Canyon; large vehicles need an escort through the tunnel.
Drive the Zion–Mount Carmel Highway through the switchbacks and the long tunnel, stopping for the short Canyon Overlook Trail on the far side. Continue to Bryce Canyon National Park and walk the rim between Sunrise Point and Sunset Point, then drop below the rim on the combined Queen's Garden and Navajo Loop trail among the hoodoos. Watch the evening light from Inspiration Point or Bryce Point.
Signal The highway east of Zion has long gaps; 4G is available near Bryce Canyon City and at some rim viewpoints, but drops below the rim.
Day 4 Page
About 2.5–3 hours by road from Bryce to Page via US-89.
Watch sunrise at Bryce, then drive south-east via Kanab to Page in Arizona. Join a booked guided tour of Upper or Lower Antelope Canyon, the narrow sandstone slot canyons on Navajo land, which can only be visited with a Navajo-authorised guide. In the late afternoon walk the short path to the Horseshoe Bend overlook above the Colorado River for sunset.
Signal US-89 has stretches with no signal between Kanab and Page; Page has 4G, but there is none inside Antelope Canyon.
Day 5 Grand Canyon South Rim
About 2.5 hours by road from Page to Desert View; Grand Canyon Village is about 40 minutes further.
Drive south across the Navajo Nation to the east entrance of Grand Canyon National Park. Climb the Desert View Watchtower, designed by Mary Colter, for the first view down to the Colorado River, then follow Desert View Drive west, stopping at Lipan Point and Grandview Point. Reach Grand Canyon Village by late afternoon and watch sunset from Mather Point or Yavapai Point.
Signal Coverage is sparse across the Navajo Nation and along Desert View Drive; Grand Canyon Village has 4G, though it slows at busy times.
Day 6 Grand Canyon South Rim
Free park shuttles connect the village, the South Kaibab trailhead and Hermit Road.
Start early with a short descent on the South Kaibab Trail to Ooh Aah Point or Cedar Ridge, carrying plenty of water and turning back well before you tire; the climb out is far harder than the walk down. In the afternoon walk sections of the Rim Trail past the Yavapai Geology Museum, or take the free Hermit Road shuttle west to Hopi Point and Hermits Rest for sunset.
Signal 4G is usable on the rim near the village, but drops away soon after you start down the trails; do not count on your phone below the rim.
Day 7 Las Vegas
About 4.5–5 hours by road from the South Rim to Las Vegas via Williams, Seligman and Kingman.
Drive south to Williams and follow a stretch of historic Route 66 west through Seligman, with its old filling stations and diners. Rejoin the interstate towards Kingman and stop at the Hoover Dam on the Nevada–Arizona border, walking out on the Mike O'Callaghan–Pat Tillman Memorial Bridge for the view of the dam. Return to Las Vegas for the evening or your flight.
Signal Good 4G along I-40 and near the towns, with gaps on the quieter Route 66 sections between Seligman and Kingman; 5G returns in Las Vegas.
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