Published: 23 February 2026 • Compare The Networks
eSIM technology is transforming how UK businesses manage their mobile phone fleets. Instead of fiddling with tiny plastic SIM cards, an eSIM is a chip built into the phone that can be programmed remotely with your network details. For businesses, this means faster deployment, easier number management, and the ability to run two numbers on one device. Here is everything you need to know about using eSIM for business in the UK.
What Is an eSIM?
An eSIM (embedded SIM) is a small chip soldered directly onto a phone's circuit board during manufacturing. Unlike a traditional removable SIM card, an eSIM does not need to be physically inserted or swapped. Instead, your network profile is downloaded to the eSIM over the internet -- typically by scanning a QR code or through a carrier app.
The eSIM stores exactly the same information as a physical SIM: your phone number, network authentication details, and carrier settings. Functionally, there is no difference in call quality, data speed, or network performance between an eSIM and a physical SIM.
Why eSIM Matters for Business
For consumers, eSIM is a convenience. For businesses, it is a genuine operational advantage. Here is why:
1. Remote Activation and Deployment
With traditional SIMs, you need to order physical cards, wait for delivery, and manually insert them into each device. With eSIM, your network provider sends a QR code or activation link. The employee scans it, and the line is active within minutes. This is transformative for businesses with remote or distributed teams -- you can activate a new line for someone in Edinburgh while you are sat in London.
2. Dual SIM Capability
Most modern smartphones support one physical SIM and one eSIM (or even two eSIMs). This means employees can carry a single phone with two separate numbers:
- Personal number on the physical SIM
- Business number on the eSIM (or vice versa)
This is ideal for BYOD (Bring Your Own Device) programmes, where employees use their own phone but need a separate business line. It also means employees can switch off the work line outside business hours without carrying two phones.
3. Easier Fleet Management
IT administrators can manage eSIM profiles remotely using MDM (Mobile Device Management) tools. Profiles can be assigned, swapped, or deactivated without touching the physical device. If a phone is lost or stolen, the eSIM profile can be remotely deleted, instantly disabling the business line.
4. International Flexibility
Business travellers can add a local eSIM data plan for their destination country without removing their UK SIM. This avoids roaming charges while keeping the UK business number active for incoming calls. Several providers (such as Airalo, Holafly, and Ubigi) offer pay-as-you-go eSIM data plans for 190+ countries.
5. No More Lost or Damaged SIMs
Physical SIM cards get lost, damaged, and stuck in SIM trays. eSIMs eliminate this entirely. For businesses managing dozens or hundreds of devices, this removes a surprisingly common source of downtime and IT support tickets.
Which UK Networks Support Business eSIM?
Not all UK networks offer eSIM on their business plans. Here is the current status as of early 2026:
| Network | Business eSIM Support | Activation Method | Multi-Device eSIM | Notes |
|---|---|---|---|---|
| EE Business | Yes | QR code via My EE Business app | Yes (Apple Watch, iPad) | Widest device compatibility; supports eSIM on all business plans |
| Vodafone Business | Yes | QR code via online portal or in-store | Yes (Apple Watch) | eSIM available on most business plans; some legacy plans excluded |
| Three Business | Yes | QR code via My3 Business app | Limited | eSIM supported on newer plans; contact business team for legacy plan compatibility |
| O2 Business | Yes | QR code via My O2 Business portal | Yes (Apple Watch, Samsung Watch) | Full eSIM support on all current business plans |
Tip All four major UK networks now support eSIM on business plans, but the activation process and available features vary. EE currently offers the smoothest business eSIM experience with the widest device compatibility.
eSIM-Compatible Business Devices
Most flagship and mid-range smartphones released since 2020 support eSIM. Here are the most common devices used in UK business environments:
Apple
- iPhone 16 / 16 Plus / 16 Pro / 16 Pro Max (dual eSIM, no physical SIM tray)
- iPhone 15 / 15 Plus / 15 Pro / 15 Pro Max (eSIM + nano-SIM)
- iPhone 14 / 14 Plus / 14 Pro / 14 Pro Max (eSIM + nano-SIM)
- iPhone SE (3rd generation) (eSIM + nano-SIM)
- iPad Pro, iPad Air, iPad (10th gen) -- all support eSIM
- Apple Watch Series 7 and later (cellular models)
Samsung
- Galaxy S25 / S25+ / S25 Ultra (dual eSIM + nano-SIM)
- Galaxy S24 / S24+ / S24 Ultra (eSIM + nano-SIM)
- Galaxy S23 / S23+ / S23 Ultra (eSIM + nano-SIM)
- Galaxy Z Fold6 / Z Flip6 (eSIM + nano-SIM)
- Galaxy A55 / A35 (eSIM + nano-SIM)
- Pixel 9 / 9 Pro / 9 Pro XL (dual eSIM + nano-SIM)
- Pixel 8 / 8 Pro / 8a (eSIM + nano-SIM)
- Pixel 7 / 7 Pro / 7a (eSIM + nano-SIM)
Motorola
- Edge 50 Pro / Edge 50 Ultra (eSIM + nano-SIM)
- Razr 50 / Razr 50 Ultra (eSIM + nano-SIM)
How to Set Up a Business eSIM: Step-by-Step
The setup process is similar across all networks. Here is a general guide:
Step 1: Check Device Compatibility
Ensure the phone supports eSIM. Go to Settings > About Phone > look for "EID" (eSIM Identity). If an EID is listed, the device supports eSIM.
Step 2: Request an eSIM from Your Network
Contact your business account manager or log into your network's business portal. Request an eSIM activation. You will receive a QR code -- either via email, through the network's business app, or on a printed card.
Step 3: Scan the QR Code
- iPhone: Go to Settings > Mobile Data > Add eSIM > Use QR Code. Point your camera at the QR code.
- Android: Go to Settings > Network & Internet > SIMs > Add eSIM > Scan QR code.
Step 4: Label Your Lines
If you are running dual SIM (personal + business), label each line clearly. Both iOS and Android let you assign names like "Work" and "Personal" to each SIM.
Step 5: Set Default Lines
Choose which line is used by default for calls, texts, and data. Most business users set their business eSIM as the default for calls and their personal SIM for data (or vice versa, depending on which plan has more data).
Step 6: Test Everything
Make a test call from each line, send a text, and check mobile data is working. Verify that incoming calls to both numbers ring correctly.
Cost Comparison: eSIM vs Physical SIM
There is no price difference between eSIM and physical SIM plans from UK networks. The monthly contract cost is identical. The savings come from operational efficiency:
| Factor | Physical SIM | eSIM |
|---|---|---|
| Monthly plan cost | Same | Same |
| Delivery time | 1-3 working days | Instant (QR code) |
| Replacement cost (lost/damaged SIM) | £5-£10 per SIM | £0 (re-download profile) |
| Staff downtime for setup | 10-15 minutes per device | 2-3 minutes per device |
| Bulk deployment (50 devices) | Several hours | Under 30 minutes (QR codes emailed) |
For a business deploying 50 phones, eSIM activation saves approximately 8 hours of IT time compared to physical SIM insertion and setup.
Get Business eSIM Plans
Compare eSIM-compatible business mobile plans from all major UK networks. Fast activation, dual SIM support, and full fleet management capabilities.
Get a Free QuoteLimitations and Considerations
- Not all devices support eSIM -- budget phones and some rugged devices still rely on physical SIMs only. Check before ordering.
- Transferring eSIM between devices requires re-downloading the profile. You cannot simply move a chip from one phone to another as you can with a physical SIM. This process takes a few minutes but requires network authorisation.
- Some older business plans may not support eSIM. If you are on a legacy contract, ask your provider about upgrading.
- Travelling to some countries that require physical SIM registration (e.g., India) may require a physical SIM alongside your eSIM.
Q: Can I port my existing business number to an eSIM?
Yes. The PAC code porting process is identical for eSIM and physical SIM. Request a PAC code from your old provider, give it to your new provider, and your number will transfer to the eSIM within one working day.
Q: What happens if my phone breaks? Is my eSIM lost?
No. Your eSIM profile is stored by the network, not just on the device. If your phone breaks or is replaced, contact your network provider and they will issue a new QR code to activate the same number on your replacement device. This typically takes minutes.
Q: Can I have two eSIMs on one phone?
Yes, if the device supports it. The iPhone 16 range supports two active eSIMs simultaneously with no physical SIM tray. Samsung Galaxy S25 series and Google Pixel 9 series also support dual eSIM configurations. This means you could run a personal eSIM and a business eSIM without needing a physical SIM at all.
Q: Is eSIM more secure than a physical SIM?
Yes. An eSIM cannot be physically removed and stolen (a technique called SIM swapping). The profile is tied to the device and protected by the phone's security measures. If the device is lost, the eSIM profile can be remotely deactivated by your network provider.
Q: Do all UK business SIM-only deals support eSIM?
Most current business SIM-only plans from EE, Vodafone, Three, and O2 support eSIM activation. However, some older or legacy plans may not. Always confirm eSIM compatibility when ordering a new business SIM deal.