FREQUENTLY ASKED QUESTIONS
We are here to help you get answers to your questions about OneSimCard phones and services.
Search OneSimCard Support Pages:
eSIM
- Questions about eSIM
Yes. The OneSimCard eSIM option is available for use with iOS and Android phones, smart watches and even Windows tablets.
eSIM is not a physical SIM, but rather a program that can be downloaded to eSIM compatible phones and device.
The list of supported devices includes:
- iOS:
iPhone 12, iPhone XS, iPhone XS Max, iPhone XR, iPhone 11, iPhone 11 Pro, iPhone 11 Pro Max, iPhone SE 2 (2020), iPad Air/Pro (3rd Gen), iPad Mini 5.
- Android:
Google Pixel 3a, 4, 4XL, 5; Samsung Galaxy Fold, Samsung Galaxy S20, S20+, S20 Ultra; Samsung Galaxy Z Flip; Samsung Watch S4; Huawei Watch 2 Pro; Huawei P40, P40 Pro.
- Windows 10:
Acer Swift 7, ASUS NovaGo, HP Envy x2, Lenovo IdeaPad Miix 630, Lenovo Yoga 630, Microsoft Surface Pro X/Go 2/Pro with LTE Advanced.
Learn more about eSIM compatibility on the eSIM page.
 Note: iPhone XS and XR manufactured for the Chinese Market have 2 physical SIM card slots and are not eSIM capable. Pixel 3a can't use eSIM if the phone was purchased in Japan, or if bought with Verizon or Charter service.
Yes, as of March 3rd, 2020, OneSimCard eSIM can be used for Mobile Data, Voice and Texts. However, you can still use the
OneSim VOIP app option with a Personal Extra Number (PEN) for additional savings on calling and texting
Yes, you can use Facetime and iMessage with eSIM, which now offers a mobile number ID.
Additionally, the eSIM data service can be used for the actual data part of your communications. So, when you are installing eSIM on iPhone, you can select the Primary service for Facetime and iMessage and then if your selected eSIM to be your primary data service, the communications will go over eSIM mobile data.
Yes. Data Roaming should be turned on on your phone for eSIM for data to work. Calls and texts should work with or without it.
There are two ways you can do this:
1. From your mobile go to ma.onesimcard.com. This provides the access to your free OneSimCard mini account. Free means that there is no need to have the SIM balance or data package on the SIM to be able to access this page in over 110 countries. Log in to your account and activate a new data package.
2. From any computer log in to your on-line account at OneSimCard.com to order a data package.
eSIM is not a physical SIM. It is a piece of software downloaded to a compatible phone. So there is no shipping involved with delivering eSIM.
eSIM makes your iPhone or Pixel phone to be a dual SIM phone. This means that you can use two sim cards on the phone at the same time. You can select which SIM card is used for calls and texts, and which one is used for data. You can select which sim card is to be the primary and which one not to be used. You can make these changes from the settings of your phone at any time. In short - eSIM offers greater flexibility to your eSIM compatible phone. It allows you to use the service provider of your choice - whether you are traveling or staying home.
OneSimCard eSIM can be installed only on a single device. It can't be moved to another device, but it can be re-installed on the original device up to 10 times if required.
Before purchasing, please ensure you have verified that your device is unlocked and one of the supported devices. Installation is completed by using your phone to scan the QR code of the purchased eSIM. You may scan the QR code by displaying it on the computer screen, another device, or a printed copy.
If you’ve already purchased OneSimCard eSIM, you can see full installation instructions and access your QR code from the Recharge menu in your online account. Make sure eSIM is selected in the Select SIM Card drop down menu.
If you have not purchased your eSIM yet, learn more about international eSIM here.
You can re-install the eSIM on the same phone up to 10 times. eSIM can be installed only on one device. Once installed, it's not possible move that eSIM to another device. If you need to install eSIM on another phone, please order a new eSIM. Balance and PEN(s) from the old eSIM can be moved to a new eSIM at your request.
Yes. The 1Sim eSIM app is available at:
These apps allow for much easier management of eSIM data plans.
To connect your eSIM app to your existing web account at www.onesimcard.com, please complete the following simple steps:
1. Install eSIM app
2. Log in to the eSIM app using email and password for your current online OneSimCard account
That is all. You will be able to see the device connected to your web account in the MY SIM Cards menu of your account at www.OneSimCard.com
Customers who ordered an eSIM directly from the eSIM app do not need to connect the app and their online account at OneSimCard.com as they are already connected.
Search OneSimCard Support Pages:
