Best International SIM Card Services to Cut High Roaming Charges

Why would you need an International Sim Card? We are all aware that when we travel abroad, we need to stay connected. Though activating international roaming on an existing SIM card is an option, what most people aren’t aware of, is that it’s extremely costly. Every call, text and data request is charged phenomenally due to inter-operator charges!

To deal with it, we have built a list of great services that provide you international SIM card or global sim card that will work anywhere in the world for a reasonable fee.

Let’s look into these universal SIM cards service list…

Know Roaming

phone supporting eSIM

Offering Calls, Text and Data plans on over 200 countries, Know Roaming is a package deal if you are a frequent traveller.

Their Global SIM Card is ideal as once you land in another country, it automatically connects you to local network. Best part is their app which gives you insight into the usage, rates, balance and even support.

KnowRoaming’s Global SIM Sticker is a cooler way to get your begin your travelling experience! And as a bonus they send you a free SIM card as well. If you’re wondering how to apply a sticker on your own SIM, here’s a video showing the application process:

If you’ve got a phone supporting eSIM, then just add KnowRoaming data plans on your eSIM compatible phone. Once done, you’re good to access multiple networks without a SIM card!


Flexiroam is a package deal for travellers. They offer their services to more than 150 countries in Asia, Australia, Africa, Europe South and North America combined.

They offer different data plans for specific countries but for global data plans; its pay-as-you-go only. You can pick from the gazillion choices of plans they offer. For dual SIM phones, X SIM is ideal. Their eSIM option is best for a phone supporting eSIM functionality, whereas, the X-Microchip is best for single SIM phones. The best part? The esim is easily downloadable / activated via their app so there is no need to print the QR code to physically scan it.

To order, simply place the SIM you want in cart and checkout using any Credit or Debit Card.

USE CODE: OFF80 to get a 80% Discount on all GLOBAL DATA 3GB and above. Ends 29 March 2022 (GMT+0)


international sim card

OneSimCard saves 85% on roaming charges while travelling worldwide. This international SIM card covers over 200 countries. Data is available in 165+ countries with 4G speeds in over 50 of those.

OneSimCard includes both a European and U.S. number, with the option to add additional numbers in many countries.  If you are travelling only to Europe, OneSimCard offers a special Europe & More  with Direct Dial calling from 40 countries and special low calling rates to the United States and Canada. 

They offer some premium services such as global concierge services to help with language translation and road-side emergencies. If you happen to be an iPhone user with a locked phone or have phone supporting eSim card, you can get their e-sim (instant download) for mobile data coverage. The OneSim VOIP app works with eSim for texts and calls. Delivery of these international SIM cards is free in some cases. Otherwise you simply pay a small amount to get them delivered. You can purchase these international SIM cards via BitCoin, CashU, Credit Cards and PayPal. You should know that OneSimCard has been rated excellent by PC Mag as well.


Offering different packages in countries across Europe, UK, US, South America, Asia, and Middle East; Simify is a prepaid US-based travel sim that gives you an overseas local number and comes packed with the finest offers.

You can get a 10% discount for purchasing multiple sim cards using the code MULTISIM10 while placing an order and if you are in US, there’s no shipping fee! Not only this, you can buy and pay later through ZIPpay- with 0% interest.

What makes it unique? It helps you connect worldwide for as little as $2 a day and has a 100% money back guarantee policy! You can ask for a refund via an e-mail if you are not satisfied with their services.


This international SIM card is ideal for any price conscious traveler. The GO-SIM Starter Pack for instance, lets you stay in touch for less. It’s the SIM card that doesn’t stop giving! Fit this international SIM card into your mobile phone and you can stay in touch in over 210+ countries world wide, and you receive free calls in all major tourist destinations.

The international SIM card comes under four awesome packages that you can select based on your needs. this card comes with $10 prepaid credit.  You can add more air time to your SIM by purchasing through your Credit Card. All orders above $60 have free shipping according to the shipping and tracking FAQ. They also have data sims exclusively for data plans for various different regions of the world. With Go-Sim card you can cut on international roaming charges by 85% or more, which makes it a great sim to buy.

Woolworth’s Mobile

Woolworth’s Mobile Global Roaming allows you to roam in over 200 countries and save up to 90% on Global Roaming costs with $10 credit. With their international SIM card you can add your local landline number from over 60 countries, which means that if your friends and family are calling, they will be calling on your local number at a local rate hence, saving cost.

For your SMS services however, you will be charged but only 6c and all you have to do is log into your account and send text messages from your account and the money will be deducted from your credit balance. Keep in mind, in order for this service to work your phone device should be unlocked and less than 5 years old. Also note that this SIM does not work with the latest 4th generation iPad models but it is fully compatible with other iPad models.

The international shipping rates vary depending on which country, you are having your SIM delivered. Woolworth accepts payments via all PayPal and major credit cards.


phone supporting eSIM card

KeepGo is an international SIM card service with a special focus on Data SIMs offering unique packages to over 120 countries.

Their pocket friendly data products include a Lifetime 4G LTE, Mobile Wi-Fi Hotspot and Smartwatch SIM card.

The Lifetime 4G LTE is essentially a universal SIM card that comes with a jacket. So if your phone supports Nano, Mini or Micro, this package is a safe bet, costing a little less than $50. All you need for it to stay active is refill it once a year.

The other two products; Wi-Fi Hotspot and Smartwatch SIM card are exactly as what the name suggests. The former is a hotspot device that allows 16 simultaneous connections. While the latter is a SIM card for the smartwatch which doesn’t require your phone to be around for 2G and 3G connectivity.


SIM card and eSIM

Surfroam, as the name suggests is only reserved for internet services. You get all the data you want while travelling provided you have an unlocked GSM device or a phone supporting eSIM

Surfroam is available in more over 200 countries, and each data plan is different depending on the country you buy from. For more details check their pricing page, but just an FYI… they charge per-megabyte rate, starting at 0.01€/MB  

You can get this SIM shipped for as little as 15-20€ (+ shipping) and get the same amount back in your account as a thank you!

Surfroam doesn’t offer any text or call services. If you have private messaging services like Skype, WhatsApp and Facebook Messenger already on your phone, then who needs that?

So that’s our list for some of the best International SIM card services. I will be adding more to this list once I come across some more decent products. Meanwhile, let us know in the comments below if you have used any of these (or any other) international SIM cards.

If you want help on how to ship your SIM cards or any other item purchased in US or UK (that don’t send to your destination), check out some reliable parcel forwarding services. You can use them for sending items to your homeland.

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  1. I’m not sure where you are seeing that WorldSIM has such high approval ratings. They are a terrible company. Check out SiteJabber. I would also bet that most of the positive reviews on TrustPilot are fake. I purchased 5 world SIM cards and they were all bad. The company will not honor its warranty and provide me a refund, and I have been trying for 2 months now. This is a common problem with other customers. They should be put out of business.

    • Hi Eric, Thank you for the feedback. We’ve updated our article and removed those that are no longer fit to service customers properly. Hope you check out our updated list soon.

  2. I ordered the bundle from with 1GB when travelling to US. First issue I faced was that I couldn’t get internet working on my phone. So I had to spend around 40min in the airport where was the free wi-fi to consult with support in chat so they could enable the data for me and I could start using it.

    After using around 500MB the internet stopped working. I had to find wi-fi and contact support (because I couldn’t call the support) and they told me that my bundle is over. Ok, I thought maybe it’s some mistake, so I ordered another bundle (had to pay more for it somehow, as initial price isn’t available when you top-up). And again, after another ~500MB the internet was shut down. Support told me again, that I’ve used whole 1GB. They told me that’s because they count sessions in 1MB increment. I don’t know how this works, but buying 500MB from my provider for the same price got me the same results, as my provider counts data correctly and if I buy 500MB, I can use 500MB, not the half.

    AVOID this scam company ( if you can. Buying any pre-paid card in US would be cheaper for me in any way, but I didn’t know how crappy this company is. Next time I’ll use my provider’s internet or will look for pre-paid cards in the destination country AND WILL NEVER USE THIS SCAM COMPANY!!!

  3. Never knew Woolworth has a Sim card like this. When you say ‘unlocked’, you mean rooted phone right?
    Will that sim card work on a normal, “non-smart” phone?


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