What is an eSIM?
An eSIM (embedded SIM) is a digital version of a traditional SIM card. It's built into your phone's hardware and can be programmed over the air.
1
Check Phone Compatibility
Check Phone Compatibility
Ensure your smartphone supports eSIM. Most iPhones from XS onwards, Samsung Galaxy S20 onwards, and Google Pixel 3 onwards are compatible.
2
Choose a SecondSim Plan
Choose a SecondSim Plan
Select a monthly, quarterly, or yearly plan. You'll receive a real UK mobile number instantly, not a virtual VoIP number.
3
Scan the QR Code
Scan the QR Code
Open your phone's network settings and scan the QR code we email to you. Your new UK number will be active within 60 seconds.
Troubleshooting & Common Fixes
My QR code won't scan. What should I do?
This usually happens if your phone camera cannot focus or if you are trying to scan the code under direct glare. You can install manually: tap Enter details manually on the Add eSIM screen and copy-paste the SM-DP+ Address and Activation Code provided in your welcome email.
The SMS verification code from WhatsApp is not arriving.
First, verify that your eSIM line is turned ON under Settings > Connections > SIM Manager. Second, check that you have mobile reception (look for the dual signal strength bars in your top status bar). If you are currently traveling outside the UK, ensure you have enabled Roaming on your eSIM to allow incoming SMS delivery.
Why are my personal and business contacts merging?
Unlike iPhone, Android allows you to filter contact directories. By default, both WhatsApp apps pull from the same main Google Contacts list. To separate them:
- Open your Contacts app and create a label called "Business".
- Assign all clients and work leads to this label.
- In WhatsApp Business, you can choose to only display or chat with contacts that have this specific label, ensuring friends and clients don't blend.
Will a SecondSim eSIM get my WhatsApp account banned?
No. WhatsApp actively bans virtual numbers (VoIP) because they are commonly used by spammers. Because SecondSim operates on standard Tier-1 mobile networks, our eSIMs issue real carrier numbers. They pass legitimate WhatsApp verification first time, giving you long-term security.
Can I use an eSIM as a private UK number to protect my personal number?
Yes. Many customers activate a private UK phone number via eSIM to keep their personal mobile number off public forms, couriers, and WhatsApp groups, or to isolate their UK banking & HMRC 2FA onto an unshared line.