🔔 This guide is for Smart SIMs only
Installing your Smart SIM 📲
This adds your Honest Smart SIM to your phone so you can start using it.
Open the Smart SIM email you received
Find the QR code and scan the QR code with your phone
Can't scan your QR code? Try this guide to add it manually
Enabling data roaming 🌍
This makes sure your Smart SIM works properly and is connected when you’re in the UK or abroad.
Open Settings
Tap Mobile Service
Select your Smart SIM
Toggle on Data Roaming
Data switching 🔄
This makes sure your main SIM handles mobile data, and your Smart SIM can step in when needed.
Open Settings
Tap Mobile Service
Tap on Mobile Data
Select your main SIM (not the Smart SIM) as the data SIM
Go back to the Mobile Data screen
Toggle on Allow Mobile Data Switching
Making sure VPNs are off 📡
VPNs will block your Smart SIM connection, so it's best to turn them off.
Open Settings
Tap General > VPN
Turn off any active VPN
Private Relay 🔒
This iCloud feature can interfere with your data connection, so it’s best turned off.
Open Settings
Tap your name at the top
Tap iCloud
Tap Private Relay
Turn Private Relay off
Testing your Smart SIM ✅
Use the app to check everything's working as it should.
Open the Honest app
Tap SIMs
Select your Smart SIM
Tap Test Smart SIM
Follow the on-screen steps
Supported apps 💬
We support apps that use low data to help keep costs down for everyone.
You can find the full list of supported apps here
Supported countries 🗺
We’ve partnered with networks around the world so your Smart SIM works wherever you go.
You can check the full list of supported countries here
Basic troubleshooting steps 🔧
If something’s not working, try these quick fixes first.
Check that Mobile Data is on
Check that Data Roaming is on
Check that Private Relay is off
Check that any VPNs are off
Restart your phone
🚀 There's no need to manually change any APNs for the Smart SIM – this should all be done automatically.