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eSIM vs Physical SIM

November 27th, 2025 [Updated December 9th, 2025]
Quan Vu

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Quan Vu

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Both eSIMs and physical SIMs do the same basic job: they connect your phone to a mobile network. The difference is how they do it.

  • A physical SIM is the little plastic card you insert into your phone.

  • An eSIM is a built-in digital SIM you activate by scanning a QR code or entering a code

If you travel, swap plans, or just like things simple and digital, the choice between the two matters.

One travel card, all the perks

How KOHO Everything Fits In

Whether you’re using an eSIM or a physical SIM, you still need a smart way to pay for plans, roaming, and travel costs.

With the KOHO Everything Plan, you get:

  • Grow your savings with 3.5% interest, one of the highest rates in Canada

  • Earn a 2% cash back rate on groceries, eating, drinking, and transportation and 0.5% cash back on everything else

  • There are no foreign exchange fees, so you save on international purchases and travel

  • Get 3GB of free data (KOHO eSIM)

  • Unlimited transactions and free e-transfers

  • No minimum balance required, ever

stick to your budget while enjoying all the perks

What is a Physical SIM?

A physical SIM card is:

  • A small removable chip that slots into your phone

  • Tied to a mobile plan and phone number from your carrier

  • Easy to move between phones—just take the card out and insert it into another device (as long as it’s compatible and unlocked)

Pros:

  • Works on older and newer devices

  • Simple to understand: card in = service on

  • Easy to hand to someone else or move between phones

Cons:

  • You can lose or damage the card

  • Swapping SIMs when travelling can be fiddly

  • You’re limited by the number of SIM slots in your phone

What is an eSIM?

An eSIM is a software-based SIM built into your device:

  • No physical card required

  • You add a plan by scanning a QR code or entering activation details

  • Many phones let you store multiple eSIM profiles and switch between them in settings

Pros:

  • Great for travel – you can buy and activate a local plan before you land

  • No tiny card to lose or swap

  • Easy to switch providers or plans without visiting a store

  • Often lets you keep your main number active while using a local data eSIM

Cons:

  • Only works on eSIM-compatible devices

  • Moving an eSIM between phones can be a bit more techy than swapping a physical card

  • If your phone dies, you can’t just pop the SIM into a backup device unless you re-activate the eSIM

eSIM vs Physical SIM: Which One is Better?

It really depends on how you use your phone:

Choose a physical SIM if you:

  • Have an older or budget device that doesn’t support eSIM

  • Rarely travel and mostly stick with one carrier

  • Like the idea of a simple, removable card you can move between phones

Choose (or add) an eSIM if you:

  • Travel often and want cheap local data without hunting for kiosks

  • Want to set up plans instantly from your couch or at the airport gate

  • Like having multiple plans (for example, one for home, one for travel) on the same phone

  • Don’t want to juggle physical cards

Plenty of people use both: a physical SIM for their main Canadian plan, and an eSIM for short-term or travel data.

How to Decide What’s Right for You

Ask yourself:

  • Does my phone support eSIM?

  • Do I travel enough that local data plans would save me money?

  • Do I prefer set-and-forget (physical SIM) or flexible and digital (eSIM)?

Note: KOHO product information and/or features may have been updated since this blog post was published. Please refer to our KOHO Plans page for our most up to date account information!

About the author

Quan works as a Junior SEO Specialist, helping websites grow through organic search. He loves the world of finance and investing. When he’s not working, he stays active at the gym, trains Muay Thai, plays soccer, and goes swimming.

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