What is an eSIM?

An eSIM (“Embedded Subscriber Identification Module”) is a small chip that is embedded inside a wide range of newer devices – everything from smartphones and smartwatches, to laptops and tablets. It works just like a second SIM card in a phone, but unlike a physical SIM, an eSIM cannot be removed and can be programmed to any mobile network that supports eSIM service.



How do you use an eSIM in your smartphone?

An eSIM comes embedded as-standard in many of the latest devices. However, to activate the eSIM you will need to purchase an eSIM plan from a traditional mobile network provider (like Vodafone), or purchase an eSIM plan online. This plan, depending on who you purchase from, can give you access to voice, SMS and/or data services through the eSIM on a second mobile phone number. The plan is often installed via a QR code or by downloading an app. 


Does Ireland support eSIM?

Right now, Irish domestic operators (like Vodafone and Three) do not support eSIM. This means you can’t visit one of their stores and request an eSIM plan to activate the eSIM within your device. However, customers can purchase global roaming eSIM plans from a number of online stores that will activate the eSIM in their device and allow them to use their eSIM in Ireland. The eSIM will ‘roam’ onto mobile operators’ networks and can be used at home or abroad. 


What are the benefits of using a global roaming eSIM?

An global roaming eSIM purchased online can be used at home or overseas, giving the user a range of different benefits.


Using an eSIM in your home country:

  • Make use of two mobile phone numbers on one device – great for those who have a personal line and a business line
  • As a global roaming eSIM can roam on any network, users may be able to switch network providers to access better coverage in remote locations
  • Affordable international calling rates


Using an eSIM overseas:

  • Affordable roaming voice, SMS and data plans – often cheaper than traditional network providers
  • No need to remove your current SIM card and replace it with a local SIM
  • Your primary SIM number can be used at the same time as your eSIM

What devices work with eSim..

Apple Phone iPhone 11, 11 Pro, 11 Pro Max, XS, XS Max, XR
Tablet iPad Mini (5th gen.), iPad (7th gen.), iPad Air (3rd gen.), 12.9-inch iPad Pro (3rd gen.), 11-inch iPad Pro
Wearable Apple Watch Series 3, 4, 5
Samsung Phone S20, S20+, S20 Ultra, Z Flip, Galaxy Fold
Wearable Gear S2, S3 Frontier 3G, S3 Classic, and Galaxy Watch and Watch Active 2
Google Phone Pixel 3, 3 XL, 3a, 3a XL , 4, 4 XL
Motorola Phone Razr
Microsoft Tablet Surface Pro X, Surface Pro with LTE Advanced
Huawei Wearable Huawei Watch 2 Pro
Xiaomi Wearable Smartwatch

By Jim O Brien/CEO

CEO and expert in transport and Mobile tech. A fan 20 years, mobile consultant, Nokia Mobile expert, Former Nokia/Microsoft VIP,Multiple forum tech supporter with worldwide top ranking,Working in the background on mobile technology, Weekly radio show, Featured on the RTE consumer show, Cavan TV and on TRT WORLD. Award winning Technology reviewer and blogger. Security and logisitcs Professional.