Does iPhone 12 Support eSIM?

Yes, all models in the iPhone 12 series (iPhone 12, 12 mini, 12 Pro, and 12 Pro Max) officially support eSIM technology alongside a standard physical nano-SIM slot, enabling full Dual SIM capability. Additionally, the iPhone 12 series is the first generation of iPhones to feature 5G connectivity on both physical SIM and eSIM lines.

Technical Specifications & eSIM Capabilities

Using an eSIM on the iPhone 12 offers several advanced connectivity options:

Dual SIM Dual Standby (DSDS): Run two separate phone numbers (such as a personal line and a work line) on a single iPhone 12 simultaneously.

5G Network Support: Apple introduced 5G support across both physical SIM and digital eSIM lines starting with the iPhone 12 series (requires iOS 14.5 or later).

Multiple Profile Storage: Store 8 or more eSIM profiles in device memory, though only 1 eSIM can be active alongside the physical SIM at a time.

Global Regional Variants: Standard global and US models support eSIM, whereas models manufactured for Mainland China, Hong Kong, and Macao feature two physical SIM slots instead of eSIM support (except for the iPhone 12 mini, which has a single physical SIM slot in those regions).

iPhone 12 SIM Compatibility Matrix
Specification / Model Variant Global / US / EU Models Mainland China / HK / Macao Models
Physical SIM Slots 1 Nano-SIM 2 Nano-SIMs (1 Nano-SIM on 12 mini)
eSIM Support Yes (Built-in digital chip) No (eSIM disabled by hardware)
Active Network Lines 1 Physical SIM + 1 eSIM 2 Physical SIMs simultaneously
5G Support on eSIM Supported (iOS 14.5+) N/A
Carrier Unlock Required? Yes (to use two different carriers) Yes (to use two different carriers)
Step-by-Step: How to Set Up an eSIM on iPhone 12

Connect to Wi-Fi: Make sure your iPhone 12 is connected to a stable Wi-Fi network before initiating setup.

Open Cellular Settings: Go to Settings > Cellular (or Mobile Data).

Add eSIM Plan: Tap Add eSIM (or Add Cellular Plan).

Scan Carrier QR Code: Select Use QR Code and scan the QR code provided by your telecom operator or travel eSIM provider.

Assign Line Labels: Name your lines (e.g., "Primary", "Business", or "Travel") and set your default line for voice calls, iMessage, and cellular data.