California eSIM — Data Plans from ₹325.00

HelloRoam is a global eSIM provider offering instant mobile data in 185+ countries. Buy prepaid travel eSIM plans with no extra fees, no contracts, and instant activation on any eSIM-compatible device.

California eSIM with instant activation - international travel data plans - no extra fees - 5G mobile network

California eSIM card data plans for international travel

Package details

Cheap eSIM for California, starting from ₹325.00. Local 4G LTE and 5G data on top carrier networks in California. Works on all eSIM compatible phones including OnePlus, Samsung, and iPhone.

Start your California trip connected from the moment you land. HelloRoam prepaid e-sim card activates via QR code in under 2 minutes on any eSIM compatible phone. Plans start from ₹325.00, far below Jio international roaming at ₹575 per day and Airtel at ₹596 per day. Skip the airport SIM counter queue and skip the carrier contract. HelloRoam connects to the strongest local 4G LTE or 5G network automatically, whether you are in a city or a rural area. One account covers 185+ countries through 203+ carrier networks.

The best eSIM for California starts from ₹325.00. Fixed and unlimited data plans for tourist trips and business travel. Set up before you fly, no store visit, no SIM swap. Keep your current number active on dual SIM. Works on any e-sim compatible iPhone or Android.

Unlimited Data

5GT-Mobile

Choose number of eSIMs

1 eSIM

How long will you be away?

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7 Days

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eSIMs / Travellers

Up to 5G support

5GT-Mobile

Choose number of eSIMs

1 eSIM

Choose number of eSIMsHow many travellers

1 eSIM

TotalFrom $3.49USD

Activate instantly

Install your eSIM before or during your trip. Your plan starts when your device connects to a local network at your destination, and auto-activates after 120 days. User guide

Apple App Store

Rated 5/5

Secure payment guaranteed

eSIM - 1

$0.00

eSIM - 1

$0.00

A California eSIM from HelloRoam starts at ₹325.00 per day across 203+ carrier networks in 185+ countries. Activate via QR code in under two minutes on any eSIM compatible phone. Keep your Jio, Airtel, or Vi number active. 180-day refund guarantee and 24/7 live support.

203+ networks
5G
within 2 minutes activation

Last updatedApril 2026

California eSIM with fast 5G coverage

HelloRoam provides mobile data plans for Indian travellers visiting California. Buy your eSIM before you travel and activate it on Wi-Fi at home. From Los Angeles and San Francisco to San Diego, Sacramento, and the Napa Valley, California has strong 4G LTE and 5G coverage in all major cities and along Interstate corridors. Plans start at $3.49 per day with instant QR code activation. One plan covers your whole California trip. 185+.

Plans start at ₹325.00 with 5G speeds
Coverage from T-Mobile and 1+ other operators
Instant activation in under 5 minutes
180-day money-back guarantee
California coverage across major cities

How to use HelloRoam

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

iPhone settings screen showing cellular options

10GB

Most popular choice

Starting from

Choose your plan and checkout online

Pick a data plan for your destination and complete your purchase online.

Scan the QR code from your email

Scan the QR code from your confirmation email to install your eSIM.

Installing...

Activate in minutes: ready when you land

Your eSIM installs in minutes and activates on arrival at your destination.

Manage everything from the HelloRoam app

Monitor data usage, top up when needed, and manage all your eSIMs in one place.

10GB

Most popular choice

Starting from

Choose your plan and checkout online

Pick a data plan for your destination and complete your purchase online.

Scan the QR code from your email

Scan the QR code from your confirmation email to install your eSIM.

Installing...

Activate in minutes: ready when you land

Your eSIM installs in minutes and activates on arrival at your destination.

Manage everything from the HelloRoam app

Monitor data usage, top up when needed, and manage all your eSIMs in one place.

10GB

Most popular choice

Starting from

Choose your plan and checkout online

Pick a data plan for your destination and complete your purchase online.

Scan the QR code from your email

Scan the QR code from your confirmation email to install your eSIM.

Installing...

Activate in minutes: ready when you land

Your eSIM installs in minutes and activates on arrival at your destination.

Manage everything from the HelloRoam app

Monitor data usage, top up when needed, and manage all your eSIMs in one place.

10GB

Most popular choice

Starting from

Choose your plan and checkout online

Pick a data plan for your destination and complete your purchase online.

Scan the QR code from your email

Scan the QR code from your confirmation email to install your eSIM.

Installing...

Activate in minutes: ready when you land

Your eSIM installs in minutes and activates on arrival at your destination.

Manage 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 refund for your eSIM within 180 days of purchase. No questions asked.

Learn more about our refund policy

California eSIM vs Jio, Airtel, and Vi Roaming Packs

When comparing a California eSIM vs a travel SIM card or carrier roaming pack, HelloRoam wins on price. It beats Jio international roaming at ₹575 per day, Airtel at ₹596 per day, and Vi's ₹2,999 pack for just 24 days in select countries. For Indian travellers looking for the cheapest eSIM option, HelloRoam eSIMs start from ₹325.00 with a 180-day refund guarantee. No airport SIM counter, no hidden charges.

Feature		Jio / Airtel roaming	Limited data eSIM
180-day refund policy
24/7 live chat support
Zero activation fees
99.8% uptime guarantee
No data overage charges
Instant QR code delivery by email
Premium California carrier networks

Why Travellers Choose HelloRoam eSIMs for California

24/7 24/7 WhatsApp and live chat support

Our support team is available 24/7 on WhatsApp, live chat, and email. A real person responds in under 5 minutes. No automated bots, no long hold queues, no waiting on the Jio or Airtel helpline.

Connected in under 2 minutes

Choose your California eSIM plan online, scan the QR code from your email, and you are connected the moment you land. No store visit, no SIM swap, no paperwork. Setup takes under 2 minutes on any eSIM compatible phone.

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 simultaneously on the same phone at no extra cost.

203+ carrier networks worldwide

HelloRoam connects to 203+ carrier networks across 185+ countries. Your phone selects the strongest 4G LTE or 5G signal on arrival, the same way a local resident's phone does. No manual network selection required.

Low-data alerts so you never run out

HelloRoam sends a notification when you reach 80% of your California data allowance. You can top up instantly from the app without reinstalling your eSIM or scanning a new QR code. No surprise data cut-offs mid-trip.

Local 4G LTE and 5G network speeds

Your California eSIM connects to local 4G LTE and 5G networks from the moment you land. Tourist areas, airports, and city centres all get the same fast, reliable speeds. HelloRoam picks the strongest available signal automatically so maps, WhatsApp video calls, and streaming work without manual setup. Unlimited data plans are available for longer stays.

Regional and global plans in one purchase

Planning to visit Dubai, Singapore, Thailand, the UK, or multiple countries in one trip? HelloRoam regional e-sim plans cover Southeast Asia, Europe, and the Middle East in a single purchase across 185+ countries.

Hotspot sharing included, 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.

24/7 24/7 WhatsApp and live chat support

Our support team is available 24/7 on WhatsApp, live chat, and email. A real person responds in under 5 minutes. No automated bots, no long hold queues, no waiting on the Jio or Airtel helpline.

Connected in under 2 minutes

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 simultaneously on the same phone at no extra cost.

203+ carrier networks worldwide

Low-data alerts so you never run out

Local 4G LTE and 5G network speeds

Regional and global plans in one purchase

Hotspot sharing included, no extra charge

What Is an e SIM? How eSIM Works in California

An eSIM card is a digital SIM built directly into your phone. There is no plastic chip and no SIM tray to open. Scan a QR code to activate your e SIM in under 2 minutes on any eSIM compatible iPhone or Android. It works as a prepaid data plan for California travel with no airport SIM counter queue, no replacement SIM card, and no carrier contract. Keep your Jio, Airtel, or Vi number active in dual SIM mode while HelloRoam handles data. Follow the step-by-step setup guide to get connected before your flight. guide

Unlimited Data

Up to 5G support

Data sharing

Learn more about eSIM

eSIM activation and setup guide for travellers going abroad

15.56 GB

Out of 30 GB left

10GB

California — mobile connectivity coverage

California eSIM Network Coverage

local partner networks with 5G deployed in Los Angeles, San Francisco, San Diego, Sacramento, and the major tech corridor between San Jose and San Francisco. The I-5 and US-101 highway corridors running the length of the state have 4G at all major cities and towns. Install your HelloRoam eSIM before you depart India. It activates on Wi-Fi at home and connects to local partner networks in California on landing. You save on international data charges.

Get your eSIM

HelloRoam connects to T-Mobile 5G, Verizon 5G in California
4G LTE coverage across main city and tourist areas
Airport covered
Plans from $3.49, buy before you fly from India

SourcesCalifornia telecom authority (2026)

eSIM Travel Tips for California

Download Offline Maps Before Your Flight
Download the California area in Google Maps before leaving India. 4G LTE coverage is good in the tourist centre, but can be weaker in older districts and underground. Offline maps work without any data connection.
Set Up Your eSIM Before Leaving India
Activate your HelloRoam eSIM at home on your Wi-Fi. When you land, your phone connects to local partner networks automatically. No roaming charges, no airport SIM queue.
Stay Connected in California from $3.49
HelloRoam eSIM plans for California are available from $3.49. Buy before you fly from India, scan the QR code, and connect instantly on arrival.

Get your eSIM

Best Time to Visit California

The best season to visit California from India is April–June and September–October. Temperatures during this period are 5°C to 35°C and conditions are ideal for outdoor sightseeing. The peak tourist season is July, when direct and connecting flights from India are most expensive. December–February is quieter and accommodation is cheaper. Coachella (April) is worth noting when planning dates. Avoid July–August LA heat if you want a less crowded experience. Your HelloRoam eSIM keeps you connected for navigation, maps, and calling home throughout the year.

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.

Check Device Compatibility for eSIM Data Usage Calculator for Your Trip

What Our Customers Say Join thousands of happy travelers

Apple App Store

Rated 5/5

4.8Rating

"Used HelloRoam in Dubai. Connected at DXB airport in 2 minutes. Saved thousands compared to Jio's ₹575/day international roaming pack."

Priya S.

4.8Rating

"Took HelloRoam to Singapore for a family trip. WhatsApp calls worked perfectly. Far cheaper than Airtel's ₹596/day roaming."

Rahul M.

"Set up the eSIM at Delhi IGI before my flight to London. Had 5G data the moment I landed at Heathrow. Paisa vasool."

4.8Rating

"Used it across Thailand and Malaysia. Kept my Jio number active for OTP verification. Smooth dual SIM setup on my OnePlus."

Arjun P.

4.8Rating

"HelloRoam covered 5 countries on our family Europe trip. One eSIM, no SIM swapping. Better value than any Vi international pack."

Meera R.

4.8Rating

"The 180-day refund policy convinced me. Used every GB in the USA. Already recommended to colleagues for their next business trip."

Vikram D.

4.8Rating

"Used HelloRoam in Dubai. Connected at DXB airport in 2 minutes. Saved thousands compared to Jio's ₹575/day international roaming pack."

Priya S.

"Set up the eSIM at Delhi IGI before my flight to London. Had 5G data the moment I landed at Heathrow. Paisa vasool."

4.8Rating

"Used it across Thailand and Malaysia. Kept my Jio number active for OTP verification. Smooth dual SIM setup on my OnePlus."

Arjun P.

4.8Rating

"HelloRoam covered 5 countries on our family Europe trip. One eSIM, no SIM swapping. Better value than any Vi international pack."

Meera R.

4.8Rating

"The 180-day refund policy convinced me. Used every GB in the USA. Already recommended to colleagues for their next business trip."

Vikram D.

Prices verified: 22 April 2026

California eSIM Questions Answered

HelloRoam is the best eSIM for California for travellers departing from India. Plans start from ₹325.00 per day, far less than Jio's international roaming pack at ₹575 per day or Airtel World Roaming at ₹596 per day. Before you fly from Delhi IGI, Mumbai CSI, Bengaluru Kempegowda, Hyderabad Rajiv Gandhi, or Kochi airport, scan a QR code in your phone settings and the eSIM is ready the moment you land. You get local 4G LTE and 5G speeds, a 180-day refund guarantee, and 24/7 WhatsApp support. No contract, no hidden charges, no bill shock.

HelloRoam eSIM plans for California start from ₹325.00. Compare that with Jio international roaming at ₹575 per day, Airtel World Roaming at ₹596 per day, or Vi's ₹2,999 pack for just 24 days in select countries. For a 7-day trip, Jio roaming costs around ₹4,025 and Airtel costs around ₹4,172. A HelloRoam plan for the same trip typically costs a fraction of that, with no daily billing and no BSNL international rates either. Pay by UPI, Google Pay, debit card, or credit card.

HelloRoam eSIM in California connects to local 4G LTE and 5G carrier networks. Your phone selects the strongest available signal automatically on arrival, the same way a local resident's phone does. Coverage spans major cities, airports, highways, and popular tourist areas. No manual APN setup required. HelloRoam partners with 203+ carrier networks globally. For travellers used to Jio or Airtel coverage in India, the local network speeds in California are often comparable or better in urban areas.

Getting a California eSIM before your flight from India takes three steps. First, visit helloroam.com, search California, pick a plan, and pay by UPI, Google Pay, or card. 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 CSI, no waiting in queue after a long flight.

Yes. iPhone XS and all newer models work with HelloRoam 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, check with Jio or Airtel for unlock eligibility.

A HelloRoam eSIM for California costs far less than Indian carrier international packs. Jio charges around ₹575 per day for roaming, Airtel charges around ₹596 per day, and Vi costs around ₹2,999 for 24 days in select countries. BSNL's international roaming rates are also significantly higher than a HelloRoam plan. HelloRoam connects to local networks in California at local data prices, not the premium ISD rates Indian carriers charge. For a 10-day trip, the saving can run to several thousand rupees with no hidden charges.

Buy your HelloRoam eSIM online from home before you head to Delhi IGI, Mumbai CSI, Bengaluru Kempegowda, Hyderabad Rajiv Gandhi, or Kochi airport. Scan the QR code in your phone settings to install the eSIM in under 2 minutes. When you land in California and exit airplane mode, the eSIM connects to a local network automatically. You are online before you collect your baggage. No SIM counter, no queue, no passport verification at the airport desk.

HelloRoam offers a 180-day refund window on all eSIM plans. If your California trip changes and you have not installed or activated your eSIM, you get a full refund. If you have activated and used some data, HelloRoam refunds the unused portion. Contact support by WhatsApp or email with your order ID within 180 days. Refunds process in 5 to 14 working days. This 180-day window is longer than Airalo, Holafly, and most competitors, giving you peace of mind if plans change after booking.

Yes, HelloRoam is far cheaper than Jio or Airtel international roaming. HelloRoam eSIM plans start from ₹325.00 per day across 185+ countries. Jio's international roaming pack costs around ₹575 per day. Airtel's international roaming pack costs around ₹596 per day. Vi offers a ₹2,999 pack for 24 days in select countries. HelloRoam gives you local network speeds in California at local data prices, not the premium ISD rates charged by Indian carriers. For a 10-day trip, the saving over Jio or Airtel roaming is typically several thousand rupees, with no hidden charges and no carrier contract.

HelloRoam eSIM for California connects to 203+ carrier networks across 185+ countries, starting from ₹325.00, with a 180-day refund guarantee. It works on any unlocked eSIM compatible iPhone, Samsung Galaxy, OnePlus, or Android phone. You get local 4G LTE and 5G speeds, 24/7 live chat support, instant QR code delivery, and the ability to keep your Jio or Airtel SIM active for calls back to India. No store visit, no contract, no hidden charges. HelloRoam is a strong choice for eSIM for Dubai, eSIM for Singapore, eSIM for Thailand, or any of the 185+ countries it covers.

HelloRoam offers fixed data plans from 1GB to 20GB and unlimited daily plans for California, starting from ₹325.00 across 185+ countries. Fixed plans suit short business trips. Unlimited plans suit longer family holidays. All plans include local 4G LTE and 5G speeds. Top up from the app if you run low.

HelloRoam is a global eSIM platform that partners with local carriers in 185+ countries, including California. Instead of charging premium roaming rates, HelloRoam connects your phone to a local partner network so you pay local data prices. You get the same speeds as a local prepaid sim card without the fees that Jio or Airtel charge for international roaming. Buy a plan, scan a QR code, and connect on arrival. Plans cover Southeast Asia, the Middle East, Europe, the Americas, and 185+ destinations worldwide. HelloRoam is an eSIM platform, not an MVNO. It partners directly with local carrier networks in California to deliver data at local speeds.