We are here to help you get answers to your questions about OneSimCard phones and services.
Will I get a bill for using OneSimCard service?
No. DataMax, DataMax eSIM, OneSimCard Universal, Expedition and eSIM World service is a prepaid service. You will not be able to spend more than you put on the SIM, except when you set the automatic recharge of the SIM. There are three simple ways to add funds to the balance of the SIM: from on-line, from the mobile phone and by setting up an automatic recharge. This pertains to both - purchased SIM cards.
For funding the 1SIM VoIP App, there are three simple ways to add funds to the balance of the account: from on-line, from the mobile phone and by setting up an automatic recharge.
How to estimate the amount of internet data usage on my device?
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General estimates for the amount of data used per service |
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Activity |
Data Usage |
Services |
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1 text only email with no attachment |
15KB |
6820 |
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1 with attachment (attachments can vary greatly in size) |
300KB |
340 |
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Web Browsing |
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1 static page visit |
300KB |
340 |
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The estimate is just for viewing the page without |
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Social Media |
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1 social media post with photo |
350KB |
290 |
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1 Instagram picture upload |
150KB |
680 |
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1 WhatsApp text message |
5.5 KB |
18610 |
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Uploading and viewing pictures, playing videos, |
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Music |
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1 min of streaming music |
500KBÂ (30MB/hour) |
200 |
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Downloading a 3-min song |
3.7MB |
25 |
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Video |
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1 min of streaming video (standard) |
4MBÂ (240MB/hour) |
25 |
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1 min of streaming video (HD) |
15MBÂ (900MB/hour) |
6 |
Note:Â Data usage varies by device. The above examples are estimates only. The actual amount of data used for the described activity can vary.
Standard definition (SD) video streaming rate: 533KBPS
High Definition (HD) video streaming rate: 2000KBPS
1MB = 1,024KB
1GB = 1,024MB
How do I enable roaming on my Android Phone?
This is very simple!ÂDoes OneSimCard offer any Hearing Aid Compatible (HAC) phones?
Yes. You can find a list of available HAC phones here.Is there a nano-SIM version available for my iPhones or other phones?
Yes! Just select "nano size" or buy a 3-in-1 SIM that contains all 3 sim sizes during checkout.
Is a micro-SIM or Nano-SIM version of OneSimCard available for the Apple iPhone 4/4S, 5/5C,5S, 6, 6S, 7, 8, X, iPads and other devices?
We now offer SIM cards in universal sizes, where the SIM card contains all 3 sizes - Mini, Micro and Nano. Simply select the needed SIM version in the shopping cart.
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Are there any additional roaming charges?
There are NO additional roaming charges. The rates you see listed on our Rates & Coverage page are the only rates you will be charged when making or receiving calls on your OneSimCard enabled cell phone. This is true for using regular cellular voice or 1SIM VoIP App.Do I need to have a OneSimCard SIM card installed in my phone to use OneSim VoIP?
No. OneSimCard SIM is not required to be installed in the phone for OneSim VoIP to be used. However, you do need to have OneSimCard account with a VoIP capable PEN.Will my order require a signature upon delivery?
Yes, please assume that your order will require a signature if it contains a cell phone.
Does OneSimCard offer a U.S. Military discount?
Yes! We offer a 15% discount (excluding airtime) for U.S. Military members when ordering with a verified .mil email address and entering promo code MILITARY15. This discount is only applicable for individual users, not for Corporate Accounts.
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