eSIM-Only iPhone: eSIM & Mobile Connectivity Explained

In one sentence

An eSIM-only iPhone is a model with no physical SIM tray, so it connects to mobile networks using only a digital eSIM.

In detail

Apple removed the SIM tray from iPhone 14 models sold in the United States in 2022 and has kept that design on later US models. In 2025, Apple's iPhone Air arrived as an eSIM-only design in its launch markets as well. Many iPhones sold in other countries, including Australia and much of Europe, still have a nano-SIM tray alongside eSIM support, so the answer depends on where your phone was bought. An eSIM is a small chip built into the phone, and your carrier plan or travel plan is loaded onto it digitally instead of on a plastic card. Your iPhone can store several eSIMs and run two at once, which is called dual eSIM.

How it works

Instead of swapping a plastic card, you add a plan as a digital profile that is downloaded and saved on the phone's built-in chip. With a Fresim store eSIM, the plan is delivered by email, and the buyer taps Install on iPhone (iOS 17.4 or later) and the eSIM installs. The QR code in the same email is the second option, handy for sharing the eSIM or installing it from another screen.

Why travellers should care

If your iPhone has no SIM tray, the old trick of buying a local SIM card at the airport will not work, so a travel eSIM is your simplest way to get mobile data abroad. You can set up a plan before you leave home and switch it on when you land. Because dual eSIM lets you keep your home number active alongside a travel data plan, you can still receive verification texts and calls while using local data.

Related terms

• iPhone 14 US
• physical SIM
• dual eSIM
• eSIM
• travel eSIM

Example

Maya, a travel creator, flies from Los Angeles to Lisbon with a US-model iPhone that has no SIM tray. Before the flight she buys a Europe data plan from a creator's eSIM store, and the plan arrives by email. She taps Install on iPhone, and the eSIM installs in moments. She also sends the QR code from the same email to her travel partner so they can install a plan from another screen. After landing she switches her data line to the travel eSIM, keeps her home eSIM on for calls and texts, and turns off roaming on the home line.

Key takeaway

An eSIM-only iPhone has no SIM tray, so you install travel data digitally, ideally with a one-tap install before you leave home.