How eSIM Works
Discover the future of mobile connectivity. Learn how eSIM technology revolutionizes the way you stay connected while traveling the world.
What is an eSIM?
An eSIM (embedded SIM) is a digital SIM card that's permanently embedded in your device. Unlike traditional physical SIM cards, eSIMs can be programmed remotely to connect to different mobile networks.
This revolutionary technology eliminates the need for physical SIM cards, allowing you to switch carriers or add new plans instantly through software.
Instant Activation
No waiting for physical SIM delivery or store visits
Global Coverage
Stay connected in 190+ countries with local rates
Secure Connection
Enterprise-grade security with encrypted data transmission
Flexible Plans
From 1 day to 365 days, including unlimited plans for your travel needs
eSIM vs Traditional SIM
See the difference at a glance
eSIM (Digital)
- Digital profile (no physical card)
- Instant remote activation
- No waiting in line
- Cannot be lost or damaged
- Support multiple carriers
- Setup in 15 seconds online
Traditional SIM
- Physical card required
- Manual installation needed
- Wait in line at store
- Can be lost or damaged
- Limited to one carrier
- Store visits required
Simple 4-Step Process
Get connected anywhere in the world in just a few minutes with our streamlined process
Choose Your Destination
Browse our extensive catalog of eSIM plans covering 190+ countries and regions worldwide.
- Select from single-country or multi-country plans
- Choose data allowances from 1GB to unlimited
- Pick validity periods from 7 days to 365 days
- Compare prices across different carriers
Complete Your Purchase
Secure checkout with instant delivery of your eSIM QR code and activation instructions.
- Secure payment processing with encryption
- Instant email delivery within seconds
- No hidden fees or binding contracts
- 24/7 customer support included
Scan QR Code
Use your phone's camera to scan the QR code and automatically install your eSIM profile.
- Works with all eSIM-compatible devices
- Automatic network configuration
- No manual APN settings required
- Backup manual installation method available
Connect Instantly
Activate your eSIM and start enjoying high-speed data connectivity immediately upon arrival.
- Instant activation upon arrival
- High-speed 4G/5G networks
- Seamless roaming experience
- Real-time usage tracking
Device Compatibility
Check if your device supports eSIM technology for seamless connectivity
Compatible Devices
Quick Compatibility Check
Go to Settings → Cellular/Mobile Data and look for "Add Cellular Plan" or "Add eSIM"
Requirements
eSIM-compatible device
Device must support eSIM technology (check compatibility list)
Unlocked device
Device must not be carrier-locked to use third-party eSIMs
Internet connection
WiFi needed for initial eSIM download and installation
Important Note
Some carrier-locked devices may not support eSIM from other providers. Contact your carrier if unsure about lock status.
Quick Compatibility Check
Not sure if your device supports eSIM? Here are easy ways to check without looking up device lists
EID Check MethodMost Reliable
Check for EID Number
Go to Settings → General → About and look for "EID" or "Digital SIM ID"
Settings Check MethodAlternative
Look for eSIM Options
Go to Settings → Cellular/Mobile Data → Add Cellular Plan
Critical: Enable Data Roaming
🔴 IMPORTANT: Turn ON Data Roaming for AlwaySim eSIM
Many people turn off data roaming to avoid charges. However, AlwaySim eSIM requires data roaming to be enabled to work properly.
Set AlwaySim as Default Data
✅ Select AlwaySim eSIM for Cellular Data
Make sure to select your AlwaySim eSIM as the default cellular data line to avoid using your primary SIM's data.
Ready to Experience Global Connectivity?
Join over 750,000 travelers who trust AlwaySim for their global connectivity needs. Experience the perfect blend of security, reliability, and service excellence.