Do All iPhones Support Dual SIM?

Dual SIM support arrived with the iPhone XS, XR, and XS Max in 2018. Every iPhone since then has it, but older models (iPhone X, iPhone 8, and earlier) do not.

If you’re shopping for a refurbished iPhone specifically because you need two numbers on one device, you need to start at the iPhone 13 at the absolute minimum. Realistically, though, you should be starting at the iPhone 14 or iPhone 15.

The Full List of Dual SIM iPhones

Here’s every iPhone that supports dual SIM, split by generation so you can see at a glance what’s actually worth buying refurbished in 2026:

Model	Dual SIM Type	Refurb Verdict
iPhone XS / XS Max / XR (2018)	Nano-SIM + eSIM	⚠️ Avoid — iOS updates ended
iPhone 11 / 11 Pro / 11 Pro Max (2019)	Nano-SIM + eSIM	⚠️ Avoid — limited update runway
iPhone 12 series (2020)	Nano-SIM + eSIM	❌ Hard avoid — near end of support
iPhone 13 series (2021)	Nano-SIM + eSIM	✅ Budget floor — minimum recommended
iPhone 14 series (2022)	Nano-SIM + eSIM (non-US) / eSIM-only (US)	✅ Good mid-range option
iPhone 15 series (2023)	Dual eSIM (no physical SIM slot)	⭐ Best for most buyers
iPhone 16 series (2024)	Dual eSIM (no physical SIM slot)	⭐ Premium pick — longest update window

Did You Know? From the iPhone 15 onwards, Apple removed the physical SIM tray entirely (even outside the US). Every iPhone 15 and 16 is eSIM-only. That’s not a problem for most people in the UK and Europe — the major carriers all support eSIM now — but it’s worth knowing before you buy.

What Is Dual SIM on an iPhone, Actually?

A dual SIM phone lets you run two active phone numbers on one device at the same time. One number handles calls and texts as normal while the second sits ready for data or a second line.

You switch between them in Settings, or set rules so certain contacts always ring on a specific number.

Apple’s implementation uses eSIM (electronic SIM) rather than two physical plastic cards. An eSIM is a chip built directly into the logic board. Your carrier programmes it remotely, either via an app or a QR code they send you. No fumbling with a SIM tray.

On iPhones from 2018 to 2022 (iPhone XS through to iPhone 14), you get one physical nano-SIM slot plus one eSIM. From iPhone 15 onwards, Apple switched to two eSIMs with no physical slot at all.

Who Actually Needs Dual SIM?

Let’s be honest: most people don’t. But if you fall into any of these categories, it’s genuinely useful.

You Have a Work and Personal Number

This is the big one. Keep your personal number as the primary line and add your work number as an eSIM. Calls come in on both, but you can see instantly which number they’re ringing. No more carrying two phones.

You Travel Internationally

This is where eSIM really shines. Land in France, open the carrier’s app, buy a local data plan, and it’s active on your eSIM in minutes. Your UK number stays on your physical SIM (or primary eSIM) so you don’t miss calls. No roaming charges, no hunting for a SIM kiosk at the airport.

You Want a Budget Data SIM

Some people keep a cheap data-only SIM from a budget carrier on one line and their regular voice plan on the other. If your main contract has limited data, this is a smart workaround.

Which Refurbished iPhone Is Best for Dual SIM Use?

If dual SIM is important to you, here are the specific refurbished models worth considering from our inventory right now.

Best for Most People: iPhone 15

The iPhone 15 256GB (Unlocked) is the one I’d point most people toward. It supports dual eSIM, charges via USB-C (finally), has a 48MP camera upgrade over the 14, and still has years of iOS updates ahead of it.

The iOS software support window is the backbone of the buying argument here: Apple typically supports iPhones for five to six years from launch, so the 15 is comfortably mid-cycle.

Available in Black, Blue, Green, and Pink. Go for 256GB if you can, it’s the storage sweet spot.

Best Premium Pick: iPhone 15 Pro / 15 Pro Max

If budget isn’t the primary concern, the iPhone 15 Pro 256GB (Unlocked) adds titanium build quality, the Action Button, ProMotion 120Hz display, and USB-C 3.0 speeds.

Dual eSIM, same as the standard 15. For creators shooting video, the 15 Pro’s 4K 60fps ProRes recording capability is a genuine upgrade — worth exploring our best iPhones for video recording guide if that’s your use case.

Want the biggest screen? The iPhone 15 Pro Max 256GB (Unlocked) adds the 5x optical zoom periscope lens too.

Best Budget Floor: iPhone 13

The iPhone 13 256GB (Unlocked) is the minimum I’d recommend if you’re watching the budget. It uses the physical nano-SIM plus eSIM combination, so dual SIM works fine. The A15 Bionic chip still runs iOS 18 without breaking a sweat. Battery life is actually excellent for the price point. Just be aware you’re on Lightning charging rather than USB-C.

The iPhone 12 and older? Hard avoid. We’re too close to the end of the software support window for those to make sense as a purchase in 2026.

The Long-Game Pick: iPhone 16 Pro

If you want the longest possible update runway and the most future-proof dual SIM setup, the iPhone 16 Pro 256GB (Unlocked) is as future-proof as it gets.

Apple Intelligence features, A18 Pro chip, Camera Control button, and the new 5x optical zoom on the standard Pro (not just the Max). Refurbished pricing makes it genuinely accessible compared to buying new.

Tech Tip: When buying a refurbished iPhone for eSIM use, always check the model number before you buy. UK and international variants support both physical SIM and eSIM (iPhone 13/14). US variants of the iPhone 14 dropped the physical SIM tray and went eSIM-only. From iPhone 15, all global variants are eSIM-only. If in doubt, check with the seller that the model is an international (non-US) variant or that your carrier supports eSIM activation.

How Does eSIM Actually Work on a Refurbished iPhone?

This is the question I get asked most often and it’s a fair one. When you buy a refurbished iPhone, the eSIM is wiped as part of the factory reset. You start fresh, which is exactly what you want.

Here’s how to add a second number via eSIM once you have your refurbished iPhone:

1. Go to Settings > Mobile Service > Add eSIM
2. Choose Use QR Code (your carrier will email or text this to you) or Enter Details Manually
3. Scan the QR code your carrier provides
4. Follow the on-screen prompts to activate the plan
5. Label your lines (e.g., “Personal” and “Work”) so you know which is which
6. Set a default line for calls and data in Settings

Most UK carriers support eSIM now. EE, O2, Vodafone, Three, Sky Mobile, and iD Mobile all offer eSIM activation. Budget carriers like Smarty and VOXI do too. If you’re checking whether your specific carrier supports it, their website will have an eSIM compatibility page.

Physical SIM vs eSIM: Does It Matter on a Refurbished iPhone?

For most buyers, no. If your carrier supports eSIM (and most UK ones do), an eSIM-only iPhone like the 15 or 16 series isn’t going to cause you any problems. You won’t miss the SIM tray.

Where it does matter: if you travel to countries with less developed eSIM infrastructure, having a physical SIM slot on an iPhone 13 or 14 gives you the fallback of picking up a local SIM card from a shop.

If you’re regularly in Southeast Asia, parts of Africa, or rural areas where local data SIMs are easier to get physically than digitally, the physical slot is a practical advantage.

For everyone else in the UK, Europe, and North America, eSIM-only is fine and actually more convenient.

Know Your Mobile Verdict

Every iPhone from the XS (2018) onwards supports dual SIM, but the ones worth buying refurbished right now are the iPhone 13 as a budget floor, iPhone 15 for most people, and the iPhone 15 Pro or 16 Pro for power users.

The eSIM-only shift on iPhone 15 and 16 is a non-issue for the majority of UK buyers. Browse our vetted refurbished phone database to find unlocked stock across all grade levels, and use the phone finder tool to filter by model, storage, and condition.

Pro-Tip: When setting up dual SIM on a refurbished iPhone, go to Settings > Mobile Service and label each line immediately (e.g., “Work” and “Personal”). Then set separate default lines for calls and data. It takes two minutes and saves a lot of confusion later, especially if you’re using different data plans on each line.

Looking for more? Explore our full range of refurbished smartphones including the latest deals across iPhone, Samsung, and Google Pixel.