eSIM vs Physical SIM: Which is Better?

Choosing between an eSIM and a physical SIM comes down to how you use your phone. Most modern smartphones now support embedded SIM technology, giving Australians the flexibility to weigh up convenience, cost, reliability and switching ease before committing to one or the other.

Below, we break down the advantages and disadvantages of each, covering common concerns like security and ease of use, so you can make an informed decision.

 

What is the Difference Between an eSIM and a Physical SIM?

A physical SIM is a removable plastic card inserted into your phone. It stores your mobile identity and connects your device to the mobile network.

An eSIM, or embedded SIM, is built directly into your device's hardware. Instead of inserting a card, you download a digital SIM profile from your carrier.

amaysim offers both physical and eSIM options. Explore amaysim's eSIM plans today.

 

eSIM vs Physical SIM: At a Glance

Feature

eSIM

Physical SIM

Setup

Receive and scan a QR code and set up without leaving home

Requires physical delivery or in-store pickup

Device Compatibility

Most modern smartphones (2018+)

Virtually all mobile phones (excl. the eSIM-only iPhone Air)

Multiple Profiles

Compatible devices can support up to two active eSIMs

One profile per card

Carrier Switching

Download a new profile digitally

Need a new physical card

Security

Embedded, encrypted and remotely deactivatable

Can be removed, lost or cloned

Internet Required for Setup

Yes

No

 

Pros of an eSIM

Easy Setup and Activation

One of the biggest advantages of an eSIM is how quick activation can be. Instead of waiting for a physical card to arrive in the post or visiting a store in person, you scan a QR code or download a network profile. Follow our step-by-step eSIM setup guide to get started.

 

Multiple Numbers on One Device

Many eSIM-compatible devices support dual SIM functionality, allowing an eSIM and a physical SIM to work side by side. This means you can manage personal and work numbers on a single phone without needing to carry two devices. For busy professionals and frequent travellers in Australia, this flexibility is a real advantage.

 

Flexible Carrier Switching

With an eSIM, switching to a new carrier or plan can be far more convenient. You can download a new profile without needing a replacement SIM card, making the transition seamless. You’ll just need to make sure your device is not locked to your existing carrier.

 

Improved Security

Because an eSIM is embedded within your device, it can't be physically removed, tampered with or swapped into another phone. eSIMs also significantly reduce the risk of SIM cloning, use encrypted digital provisioning and can be remotely deactivated if your device is lost or stolen.

 

Cons of an eSIM

Device Compatibility

eSIM technology is now standard in most flagship smartphones, but not all devices support it, particularly older or budget models. It's worth checking your phone's eSIM compatibility before making the switch.

 

Setup Can Feel Unfamiliar

While setting up an eSIM is typically straightforward, the process of downloading a digital profile or scanning a QR code can feel unfamiliar if you're used to physical SIM cards. amaysim's eSIM setup guide walks you through it step by step.

Already have an eSIM and upgrading your phone? Learn how to transfer your eSIM to a new device.

Activation Requires an Internet Connection.

Activating an eSIM requires a stable internet connection, which could be challenging if you're setting up a new device in an area with limited connectivity. Once activated, however, your eSIM functions identically to a physical SIM, including full access to calls, SMS and mobile data.

 

Pros of a Physical SIM

Universal Device Compatibility

Physical SIM cards work with virtually every mobile phone ever made (with some exceptions such as the iPhone Air). If you're using an older device without eSIM support, the traditional SIM card remains the most universally compatible option.

 

Familiar and Tangible

For many users, the simplicity of a physical SIM is reassuring. You can touch it, remove it and swap it between devices with confidence. No apps, QR codes or downloads required.

 

No Internet Needed to Get Started

Unlike an eSIM, a physical SIM doesn't require an internet connection to activate. They're also readily available at retail stores and kiosks, so you can walk in, pick one up and get connected without the internet.

 

Cons of a Physical SIM

Slower Activation Process

If you're ordering online, you'll need to wait for your SIM card to arrive in the post, or visit a store in person. For customers who switch carriers or plans frequently, this process can feel slow compared to ordering and activating an eSIM.

 

Single Profile Only

A physical SIM holds one carrier profile at a time. That means no easy toggling between work and personal numbers, and if you're travelling internationally, you'll need to physically swap SIM cards to use a local carrier. 

With an eSIM, you can manage international roaming without the hassle.

 

So, Which Should You Choose?

Both eSIM and physical SIM technology offer reliable connectivity, but if you value flexibility and convenience, eSIM is likely the stronger choice for most modern smartphone users.

 

Choose an eSIM if:

  • You have an eSIM compatible device
  • You want convenient digital activation without needing to go to a store or wait for delivery
  • You need multiple mobile profiles for work and personal use
  • You travel internationally or switch between plans frequently

 

A physical SIM may suit you if:

  • Your device doesn't support eSIM
  • You prefer a tangible card you can swap between phones
  • You need to get connected without an internet connection

 

Ready to make the switch? Explore amaysim's eSIM plans to get set up.