Best San Francisco eSIM for Tourists in 2026
Landing at San Francisco International Airport (SFO)? Activate your ZetSIM eSIM before you board and get instant 4G/5G data on AT&T USA and Verizon USA the moment you touch down in San Francisco. Starting from $4.70.
Why Sophisticated Travelers Choose a San Francisco eSIM
No Roaming Charges, No Contract
Fixed-price plans mean no surprise bills — you know exactly what you're spending.
Lowest Per GB Cost
Unlimited WhatsApp calling included on every plan.
100% Refund Policy
Not satisfied? Get a full refund, no questions asked.
Data + Voice + SMS Plans
Stay reachable with calls and texts, not just data.
Lifetime SIM Validity
Top up anytime — your eSIM never expires.
Secure & Reliable
Bank-grade encryption on every connection.
The Essential San Francisco Travel Tool
From navigating the Metro to booking a last-minute table, internet isn't a luxury — it's your key to the city.
Live Navigation
Real-time maps and transit schedules so you never get lost.
Real-time Translation
Read menus and talk to locals instantly with data-powered apps.
On-demand Rides
Call a ride from anywhere without hunting for public Wi-Fi.
Works instantly on all iPhone 11+, Samsung S20+, and Google Pixel 3+ models.
Unrivaled Coverage Across San Francisco
We partner with top local networks to bring you the best signal in every corner. From deep Metro tunnels to major landmarks, you stay connected.
Union Square and the Mission District
Full 5G/4G+ coverage
BART and Muni transit network
Full 5G/4G+ coverage
San Francisco International Airport (SFO)
Full 5G/4G+ coverage
Oakland and the Bay Area region
Full 5G/4G+ coverage
Explore San Francisco Like a Local
Mini guides to the city's most iconic spots.
Golden Gate Bridge
Use your eSIM to check fog and traffic cams before walking or biking across the bridge.
ExploreAlcatraz Island
Download your ferry ticket QR code and load the cellhouse audio tour over your eSIM data before boarding.
ExploreFisherman's Wharf
Stay connected to rideshare and map apps while exploring the piers and sea lion viewing area.
ExploreStop Overpaying for Data
| Feature | ZetSIM eSIM | Physical SIM | Roaming |
|---|---|---|---|
| Delivery | Instant (email) | In-store / mail | Automatic |
| Cost | $4.70 – $88.00 | $25 – $60 | ~$10 / day |
| Speed | Full 5G | 4G / LTE | Throttled |
| Convenience | Pre-flight setup | Airport queues | "Bill shock" risk |
Frequently Asked Questions
Does the ZetSIM eSIM work in San Francisco and across the United States?
Which phones are compatible with a United States eSIM?
How much data do I need for a San Francisco trip?
Can I get an American number with my eSIM?
How do I activate my eSIM when I land in San Francisco?
What if my eSIM doesn't work in the United States?
Stay Connected in San Francisco
Don't wait until you land. Join thousands of travelers who choose ZetSIM for a stress-free journey.
Your ZETSIM25 discount is applied automatically at checkout. Want to save even more? Get 50% OFF with ZetPass.
Save 50% with ZetPass →