iPhone 12 Series
All iPhone 12 models support eSIM with Dual eSIM capability (2 active lines). Physical nano-SIM slot is present. Includes iPhone 12 mini, 12, 12 Pro, and 12 Pro Max.
- eSIM slots2 (Dual eSIM)
- Physical SIMYes
- eSIM-onlyNo
On this page
The iPhone 12 series — iPhone 12 mini, 12, 12 Pro, and 12 Pro Max — all support eSIM. Released in 2020, these models retain the physical nano-SIM slot that later US iPhone 14 models removed, and they support Dual eSIM (two active eSIM lines).
Key Takeaways
- All iPhone 12 models support eSIM and Dual eSIM.
- Physical nano-SIM slot is present — not eSIM-only.
- Run 2 active eSIM lines simultaneously on iOS 14.5 or later.
- Carrier unlock required for third-party eSIMs.
Does the iPhone 12 Support eSIM?
Yes. Every iPhone 12 model supports eSIM. The 12 mini, 12, 12 Pro, and 12 Pro Max all launched with eSIM capability in 2020. Unlike iPhone 14 US models, iPhone 12 keeps the physical nano-SIM slot.
Dual eSIM on iPhone 12 was enabled with iOS 14.5 — if you have not updated beyond iOS 14.4, you may see only one active eSIM slot. Update to the latest iOS version to enable Dual eSIM.
iPhone 12 Models and eSIM Compatibility
| Model | eSIM Slots | Physical SIM | eSIM-Only | Released |
|---|---|---|---|---|
| iPhone 12 mini | 2 (Dual) | Yes | No | 2020 |
| iPhone 12 | 2 (Dual) | Yes | No | 2020 |
| iPhone 12 Pro | 2 (Dual) | Yes | No | 2020 |
| iPhone 12 Pro Max | 2 (Dual) | Yes | No | 2020 |
How to Activate eSIM on iPhone 12
- Open Settings.
- Tap Cellular, then Add Cellular Plan.
- Scan the QR code from your eSIM provider. Roamix emails the QR code within 60 seconds.
- Name the plan (e.g., "Roamix Travel").
- Set the Roamix eSIM as your cellular data line.
- Leave your physical SIM active for calls and texts.
Make sure your iPhone 12 is running iOS 14.5 or later to use Dual eSIM. Go to Settings → General → Software Update to check.
Using Two Lines on iPhone 12
iPhone 12 gives you multiple configuration options for multi-line travel:
- Physical SIM + Roamix eSIM: Your home SIM handles calls and texts; Roamix handles data.
- Home carrier eSIM + Roamix eSIM: If your home carrier supports eSIM, both can be eSIM-based.
Configure the data line at Settings → Cellular → Cellular Data. Enable Data Roaming for the Roamix line, and keep it off for your home line.
iPhone 12 eSIM for International Travel
Roamix works on any unlocked iPhone 12. Buy a plan, scan the QR code, and connect when you land.
Carrier lock check: Settings → General → About → Carrier Lock. If locked, contact your carrier to unlock before your trip.
iPhone 12 eSIM Troubleshooting
Dual eSIM not available: Update to iOS 14.5 or later. Dual eSIM was added as a software feature to iPhone 12 models in iOS 14.5.
"Add Cellular Plan" missing: Carrier lock. Check Settings → General → About → Carrier Lock. T-Mobile requires 40 days of active service before unlocking. AT&T and Verizon can unlock a paid-off iPhone 12 immediately.
iPhone 12 purchased in China: Chinese mainland models are dual nano-SIM only with no eSIM hardware — this cannot be changed by updating iOS.
eSIM not connecting abroad: Set the Roamix line as data line, enable Data Roaming for it, and toggle Airplane Mode off/on.
How to remove eSIM from iPhone 12: Settings → Cellular → tap the plan → Remove Cellular Plan. Deletion is permanent.
iPhone 12 Series eSIM — Frequently Asked Questions
Does iPhone 12 have eSIM?
Yes. All iPhone 12 models — iPhone 12 mini, 12, 12 Pro, and 12 Pro Max — support eSIM. They were released in 2020 and retain a physical nano-SIM tray alongside eSIM support, so they are not eSIM-only.
Is iPhone 12 Pro Max eSIM compatible?
Yes. The iPhone 12 Pro Max supports eSIM and Dual eSIM (2 active eSIM lines simultaneously). It has a nano-SIM slot so you can use a physical SIM card and an eSIM at the same time.
Can you use eSIM on iPhone 12?
Yes. The iPhone 12 fully supports eSIM. Install your travel eSIM via Settings → Cellular → Add Cellular Plan, scan your QR code, and your phone is ready to connect abroad.
Does iPhone 12 mini have eSIM?
Yes. The iPhone 12 mini has the same eSIM support as the larger 12 models — eSIM plus physical nano-SIM slot, with Dual eSIM (2 active lines).
Is iPhone 12 esim compatible?
Yes. The iPhone 12 is eSIM-compatible. It supports one physical nano-SIM and up to 2 active eSIM lines. The device was released in 2020 and runs iOS 14 or later, which is required for Dual eSIM.
Is iPhone 12 Pro eSIM compatible?
Yes. The iPhone 12 Pro supports eSIM and Dual eSIM. It retains a physical SIM slot. You can use a travel eSIM like Roamix alongside your regular SIM card.
How do I activate eSIM on iPhone 12?
Go to Settings → Cellular → Add Cellular Plan. Scan the QR code from your eSIM provider. Follow the prompts to install. Set the new eSIM as your data line and keep your physical SIM active for calls if desired.
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