HelloRoam sells prepaid eSIM data plans for California starting at ₹273.15. Your eSIM connects to local 5G networks the moment you land. Activate by QR code in under two minutes. Keep your Jio, Airtel or Vi number on dual SIM while your eSIM handles data.
- carrier networks
212+- network type
5G- QR activation
under 2 minutes
Last updated
Your eSIM California LA to SF Plan with Nationwide Coverage
Affordable eSIM for California, starting from ₹273.15. You get 5G data on local partner networks in California, and speeds depend on the local network. Works on any carrier-unlocked, eSIM-compatible phone. eSIMs California plans from HelloRoam run on Verizon and AT&T 5G networks from ₹273.15. Indian travellers activate via QR code from Delhi or Mumbai before departure. No physical SIM card is needed on arrival. Data is live from landing with transparent pricing and no hidden charges.
California eSIM with 5G coverage
California is America's most popular state for Indian travellers, home to Silicon Valley, Los Angeles, San Francisco, San Diego, and national parks. Direct flights from India (Air India, United) serve Los Angeles (LAX) and San Francisco (SFO). T-Mobile, AT&T, and Verizon provide dense 5G and 4G LTE coverage across California cities. Plans start at ₹273.15.
- Plans start at ₹273.15 with 5G speeds
- Coverage from Verizon and 1+ other operators
- Instant activation in under 2 minutes
- 180-day refund on unactivated eSIMs
- California coverage across major cities
- Network
- 5G
- Plans From
- ₹273.15
- Activation
- Under 2 min
- Refund
- 180 days if unactivated
How to Set Up an eSIM in California
Follow these steps to start using an eSIM on your iPhone or Android before travelling abroad.
Set up an eSIM on your iPhone with the HelloRoam app
Set up an eSIM on your Android with the HelloRoam app
- 1
Choose your plan and checkout online
Pick a data plan for your destination and complete your purchase online.
2Scan the QR code from your email
Scan the QR code from your confirmation email to install your eSIM.
- 3
Activate in minutes: ready when you land
Your eSIM installs in minutes and activates on arrival at your destination.
4Manage everything from the HelloRoam app
Monitor data usage, top up when needed, and manage all your eSIMs in one place.
Trip changed? No worries, we have got you covered!
Plans can change, and that is perfectly fine. With HelloRoam, you can request a full refund for an unactivated eSIM within 180 days of purchase. Once you activate an eSIM, a change of plans no longer qualifies. If your phone cannot use the eSIM, or it cannot connect after a correct install, you may still get a full or partial refund.
Learn more about our refund policyHelloRoam California eSIM vs a travel SIM card or Jio, Airtel and Vi roaming
Comparing a California eSIM with a travel SIM card or a carrier roaming pack? The eSIM skips the airport SIM counter, and Jio, Airtel and Vi international roaming packs add up fast on a longer trip. HelloRoam sells a prepaid eSIM for California from ₹273.15, with a 180-day refund on unactivated eSIMs, zero activation fees and no hidden charges. No carrier contract.
Why Indian Travellers Choose HelloRoam for Mobile Data in California
24/7 WhatsApp and live chat support
Need help at 2 AM in Dubai or midnight in London? HelloRoam support is available 24/7. Message us by live chat, WhatsApp or email at help@helloroam.com. Mobile data problems do not wait for business hours, and neither do we.
The best SIM card for California travel
Get data at 5G speeds the moment you land in California. Skip roaming fees from Jio, Airtel and Vi. HelloRoam connects you to local carrier networks in minutes, whether you are travelling for leisure or for work. Your connection starts before you clear customs.
Keep your Jio or Airtel number active
Use HelloRoam for travel data in California and keep your Jio, Airtel, or Vi SIM active for calls and messages back home. Both lines run at the same time on one phone at no extra cost. This dual SIM setup is especially useful for receiving OTPs, banking alerts, and family calls on your Indian number while your travel eSIM handles maps, WhatsApp video, and streaming abroad.
212+ carrier networks including California
HelloRoam connects to 212+ carrier networks across 185+ countries. Your phone joins a local partner 5G network automatically on arrival, so you do not need to pick a network by hand. Speeds depend on the local network.
Low-data alerts so you never run out
HelloRoam emails you as your data runs low on a fixed plan, so you can top up or buy a new plan in time. Where your plan allows it, top up from the app, just like a prepaid recharge, without reinstalling your eSIM or visiting a store. Adding a fresh prepaid data package takes under a minute from your account dashboard.
Local 5G network speeds
Your California eSIM connects to local 5G networks from the moment you land. Coverage follows the local partner network, which usually reaches city centres and main tourist areas. Your phone joins an available HelloRoam partner network automatically, so you can use maps, WhatsApp video calls and streaming without manual setup. Speeds depend on the local network and your location. Unlimited data plans, where offered, suit longer stays, and fair-use terms apply. Business travellers can also use mobile data for video calls and cloud apps, so they are not tied to shared hotel Wi-Fi on workdays abroad.
Regional and global plans in one purchase
Planning to visit Dubai, Singapore, Thailand, the UK, or multiple countries in one trip? HelloRoam regional eSIM plans cover many countries in Asia, Europe, the Middle East and more in a single purchase. A single regional plan removes the need to buy a new eSIM at each border crossing, which makes multi-country itineraries far simpler and significantly cheaper than purchasing individual local SIM cards at every airport.
Hotspot sharing in California, no extra charge
Share your California eSIM data with a laptop or tablet via your phone hotspot at no additional charge. Works on all eSIM compatible phones including iPhone, Samsung Galaxy, OnePlus, and Xiaomi flagships. For families travelling together, one person with a larger data plan can share the connection with other devices, making it an economical option for group trips where everyone stays connected without each buying a separate plan.
Best SIM Card Prices for California
HelloRoam, the best SIM card California. Compare plans and save versus Jio, Airtel, and Vi roaming.
| Number of days | Price |
|---|---|
| 1 day | ₹332.16 |
| 3 days | ₹946.99 |
| 7 days | ₹2,046.26 |
| 15 days | ₹3,985.93 |
| 22 days | ₹5,407.84 |
| 30 days | ₹6,776.45 |
HelloRoam vs Other eSIM Providers for California
Travelling from India to California? See how HelloRoam compares with Airalo, Holafly, Nomad, Saily and Ubigi. The table covers a 180-day refund on unactivated eSIMs, data overage charges and instant QR code delivery.
| Feature comparison | HelloRoam | Airalo | Holafly | Nomad | Saily | Ubigi |
|---|---|---|---|---|---|---|
| 180-day refund (unactivated eSIMs) |  Feature available |  Feature not available |  Feature available | Feature not available | Feature not available | Feature not available |
| No data overage charges | Feature available | Feature available | Feature available | Feature available | Feature available | Feature available |
| Instant QR code delivery | Feature available | Feature available | Feature available | Feature available | Feature available | Feature available |
What Is an eSIM? How a Travel eSIM Works in California
An eSIM card is a digital SIM built directly into your mobile phone. There is no plastic chip and no SIM tray to open. Scan a QR code to activate your eSIM in under 2 minutes on any eSIM compatible iPhone or Android. It works as a prepaid mobile data plan for California travel with no airport SIM counter queue, no replacement SIM card, and no carrier contract. Keep your Indian number active in dual SIM mode while HelloRoam handles your international data. Follow the step-by-step setup guide to get connected before your flight from Delhi IGI or Mumbai CSMIA. guide
California eSIM coverage guide for Indian travellers
California has dense 5G and 4G LTE in all major cities and along main interstate highways. Los Angeles, San Francisco, Silicon Valley, and San Diego are extremely well covered. Highway 1 through Big Sur, Yosemite park interior, and Joshua Tree backcountry have limited or no signal.
Always download offline maps before nature excursions.
- HelloRoam connects to Verizon 5G, AT&T 5G in California
- 5G and 4G LTE across LA, San Francisco, Silicon Valley, and San Diego
- Highway 1 Big Sur and Yosemite interior have limited signal
- One US eSIM covers all 50 states on one plan
eSIM Travel Tips for California
Install your eSIM before your direct flight from IGI or BOM
Air India and United Airlines operate direct flights from Delhi (IGI) and Mumbai (BOM) to San Francisco (SFO). Air India also flies direct to Los Angeles (LAX). Install your HelloRoam US eSIM at home. Your eSIM connects to Verizon or AT&T on landing. Use Lyft from LAX or SFO to your hotel.
Keep your Jio or Airtel SIM for India calls
Keep your Jio or Airtel SIM in slot 1 for calls and WhatsApp to family in India. Use your HelloRoam US eSIM for data in California. This dual-SIM setup saves significant Jio roaming costs on a long California trip.
Indian passport holders need a US B1/B2 visa or ESTA
Indian passport holders require a US B1/B2 visitor visa for California. Apply at the US Embassy website. Fee is USD 185 (roughly ₹15,400). Apply at least 8 to 12 weeks before your trip. Some OCI holders may need to verify their visa status.
Download offline maps before driving Highway 1 and Yosemite
Highway 1 through Big Sur has no mobile signal for long stretches. Yosemite Valley has limited AT&T coverage but no signal in backcountry. Download offline Google Maps of California before your road trip. Your HelloRoam eSIM provides data in covered urban and highway areas.
California has one of the largest Indian communities in the world
Silicon Valley (San Jose, Fremont, Sunnyvale) has hundreds of thousands of Indian-origin residents. Fremont's Niles area, Sunnyvale's Murphy Avenue, and San Jose's Saratoga Avenue have Indian grocery stores, temples, and restaurants. Visit an Indian community area for familiar food and cultural connection.
California mobile network coverage for Indian travellers
T-Mobile, AT&T, and Verizon provide dense 5G and 4G LTE coverage across California. Los Angeles, San Francisco, San Diego, Sacramento, and Silicon Valley all have excellent coverage. Highway 1 through Big Sur and most national park interiors (Yosemite Valley, Joshua Tree backcountry) have limited or no signal. The I-5, I-80, and Highway 101 corridors have 4G coverage at most points. Yosemite Valley proper has 4G coverage from AT&T at some spots.
- Verizon
- 5G
- AT&T
- 5G
California eSIM vs local US SIM vs Jio/Airtel roaming
Data options for Indian travellers visiting California.
| Category | HelloRoam eSIM Recommended | Local US SIM | Operator roaming |
|---|---|---|---|
| Typical cost | From ₹273.15 total | — | — |
| Details | Plans start at ₹273.15. One US eSIM covers all of California plus New York, Chicago, and all 50 US states. Buy before your flight. Land at LAX or SFO already connected. | US prepaid SIMs cost USD 25 to 60 (roughly ₹2,100 to ₹5,000). Available at LAX and SFO airports. Requires setup time on arrival. | If you use Jio international roaming in the USA, the charges add up fast on a longer trip. For a 2-week California road trip, a HelloRoam eSIM usually costs less than roaming with your Indian carrier. |
Prices approximate as of . Actual savings vary.
Best time to visit California from India
April through June and September through November are the best months for California with mild temperatures of 18C to 26C and lower crowds than summer. July and August are peak summer (25C to 35C in LA and inland) with crowds at national parks and higher prices. March and April have wildflower blooms in Antelope Valley and Anza-Borrego. December through February is mild in Southern California (15C to 20C) but can be cold in San Francisco and the mountains. Indian families often visit California in July or December during school holidays.
Top Attractions in California
Big Sur
Big Sur is a rugged stretch of California coast with cliffs, redwoods, and the Pacific. Use HelloRoam eSIM to stay connected.
Pull over at McWay Falls viewpoint for a waterfall dropping onto the beach.
California Street
California Street in San Francisco climbs Nob Hill with cable car tracks and city views. Use HelloRoam eSIM to stay connected.
Ride the California Street cable car for a steep climb with bay views.
Malibu Beach
Malibu Beach stretches along the Pacific Coast Highway with surf breaks and celebrity homes. Use HelloRoam eSIM to stay connected.
Try El Matador Beach for dramatic rock formations and fewer crowds.
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Reviews
What Our Customers Say
Real reviews from Trustpilot and the App Store, quoted as written.
40k+ travellers have used HelloRoam
Cat
On a trip to Europe, my hotel Wi-Fi was so slow and outside Wi-Fi was unreliable. I couldn’t take it anymore so I got helloroam for a few days. It was tricky to set up correctly because of the primary settings (with my original number). But I reached out to their customer service via WhatsApp. Super responsive and helpful, with specific and clear steps to troubleshoot. Appreciate having 4G roaming instead of being stuck with in and out Wi-Fi during my trip!!
Rated 5 out of 5 by this reviewer
Very good experience! The eSIM was easy to set up and worked great in London. It was much cheaper than it would have been to use my own operator there.
Ilona
Rated 5 out of 5 by this reviewer
metulker
Hard to set up but help was good
Rated 5 out of 5 by this reviewer
Reuben
Really happy with HelloRoam. Everything worked as expected, from messaging and Google Maps through to streaming without any issues. Easy to use, reliable and affordable. Would happily use them again when travelling.
Rated 5 out of 5 by this reviewer
Angeline
Reliable connection. Reasonable pricing.
Rated 4 out of 5 by this reviewer
Last updated
California eSIM Questions Answered
How much does a California SIM card cost for Indian tourists?
HelloRoam e SIM California plans start at ₹273.15 on Verizon and AT&T 5G networks. Activate via QR code before departure from India. No physical SIM card is needed and no Airtel or Jio roaming charges apply.
Does an e SIM California plan cover the full Pacific Coast route?
An e-sim California plan from HelloRoam delivers 5G data on Verizon and AT&T networks from ₹273.15. QR code activation takes minutes from India. No hidden charges and no contract on any purchase.
Which eSIM is best for California travel from India?
HelloRoam is a strong choice of eSIM for California for travellers departing from India. Plans start from ₹273.15 as a one-time price, not a daily charge. Before your flight from Delhi (DEL), Mumbai (BOM), Bengaluru (BLR), Hyderabad (HYD), Chennai (MAA) or Kochi (COK), scan a QR code in your phone settings and the eSIM is ready the moment you land. You get local 5G speeds, a 180-day refund window on unactivated eSIMs, and 24/7 support by WhatsApp, live chat and email. No carrier contract, no hidden charges, no bill shock.
How much does a California eSIM cost compared to Jio and Airtel roaming?
eSIM plans for California start from ₹273.15, and you pay once for the whole plan rather than a daily charge. Jio and Airtel sell international roaming packs, so check the current pack price in the MyJio or Airtel Thanks app and compare it with the plans on this page. HelloRoam shows the full price before you pay, with no hidden charges. Unlimited plans, where offered, are priced by the day.
Which networks does an eSIM use in California?
An eSIM in California connects to local 5G partner networks. Your phone picks a network automatically on arrival, the same way a local resident's phone does, and speeds depend on the local network. Coverage spans major cities, airports, highways and popular tourist areas. No manual APN setup is required. HelloRoam works with 212+ carrier networks across 185+ countries.
How do I buy a California eSIM before flying from India?
Getting a California eSIM before your flight from India takes three steps. First, visit helloroam.com, search California, pick a plan and pay online. Second, open your confirmation email and scan the QR code in your phone settings under Add eSIM. Third, your eSIM installs in under 2 minutes and activates automatically when you land. No airport kiosk, no SIM counter at Delhi IGI or Mumbai CSMIA, no waiting in a queue after a long flight.
Does iPhone work with a California eSIM for Indian travellers?
Yes. iPhone XS and all newer models work with eSIM in California. Go to Settings, tap Cellular or Mobile Data, then Add eSIM, and scan the QR code from your HelloRoam email. Your Jio or Airtel number stays active through dual SIM while HelloRoam handles your travel data in California. No carrier unlocking is needed for iPhones purchased directly from Apple in India. For iPhones bought on a carrier plan, do check with Jio or Airtel for unlock eligibility.
Does eSIM work in California for Indian travellers?
A HelloRoam US eSIM works across California on Verizon and AT&T 5G and 4G LTE networks. Install via QR code before flying from India. Plans start at ₹273.15. HelloRoam eSIM for California connects to Verizon and AT&T with 5G coverage across major tourist and urban areas. Activate by scanning a QR code before departure. No physical SIM card or airport queue needed.
Do Indian passport holders need a visa for California?
Yes. Indian passport holders require a US B1/B2 visitor visa. Apply at the US Embassy. Fee is USD 185 (roughly ₹15,400). Apply at least 8 to 12 weeks before your trip. Check the current entry requirements for California on the official embassy website or your government's travel portal before departure, as regulations change. Store digital copies of travel documents in the cloud so you can access them through your HelloRoam data connection while traveling.
Does the same US eSIM cover all California cities?
Yes. One HelloRoam US eSIM covers Los Angeles, San Francisco, San Diego, Silicon Valley, Sacramento, and all of California plus all 50 states on one plan. HelloRoam eSIM for California connects to Verizon and AT&T with 5G coverage across major tourist and urban areas. Plans start from ₹273.15. Activate by scanning a QR code before departure. No physical SIM card or airport queue needed.
Can I use WhatsApp in California?
Yes. The USA has no VoIP restrictions. WhatsApp, FaceTime, and Google Meet all work freely on your HelloRoam US eSIM throughout California. HelloRoam eSIM for California connects to Verizon and AT&T with 5G coverage across major tourist and urban areas. Plans start from ₹273.15. Activate by scanning a QR code before departure. No physical SIM card or airport queue needed.
Is there signal at Yosemite National Park?
Yosemite Valley has limited AT&T 4G coverage in certain spots near Yosemite Village. Backcountry trails, High Sierra camps, and Tioga Pass road have no mobile coverage. Download offline maps before entering the park. Outdoor areas and main tourist zones have strong signal, and in the US the HelloRoam eSIM connects only to Verizon and AT&T. Large indoor venues or underground spaces may have slightly weaker coverage. HelloRoam eSIM joins a partner network automatically, so you do not need to set anything up.
How much data for a 2-week California road trip?
A 2-week California road trip using Google Maps, Airbnb, WhatsApp, and social media typically uses 5 to 8 GB. Most hotels and Airbnb properties have Wi-Fi. For a week of typical travel (Google Maps navigation, WhatsApp messages, and social media) you need 3 to 5 GB. If you stream video or make video calls daily, choose a 8 to 10 GB plan. The HelloRoam app shows how much data you have used, although the figure can be up to 3 hours behind.
What is the USD to INR exchange rate?
The US dollar (USD) is roughly ₹83 to ₹84 per dollar. So USD 100 is approximately ₹8,300 to ₹8,400. HelloRoam eSIM for California connects to Verizon and AT&T with 5G coverage across major tourist and urban areas. Plans start from ₹273.15. Activate by scanning a QR code before departure. No physical SIM card or airport queue needed.
Is there a large Indian community in Silicon Valley?
Yes. Silicon Valley has one of the largest Indian communities outside India. Fremont, Sunnyvale, Cupertino, and San Jose have large Indian populations with temples, grocery stores, Indian restaurants, and cultural events. HelloRoam eSIM for California connects to Verizon and AT&T with 5G coverage across major tourist and urban areas. Plans start from ₹273.15. Activate by scanning a QR code before departure. No physical SIM card or airport queue needed.
