– THREE 4G/5G SIM Card UK & ROAM FREE in over 70 destinations - PREPAID PAYG £10 Bundle - 20GB + (20GB FREE DATA) Unltd Texts & Mins - ROAMING ALLOWANCE 6GB

Excellent all round. Worked perfectly in the US and saved me loads of money on data. Would buy again without hesitation.

I bought the Three 4G/5G SIM card as a prepaid option to ensure I had reliable data when I landed in Colombia, and it worked out really well. The setup process is straightforward if you follow the instructions carefully. One thing I found especially useful was that it’s cheaper to buy this online than in a physical store, so it’s a great value for what you get. Before you leave the UK, it’s essential to activate the card by making an outbound call and sending a few texts to ensure it’s fully set up for roaming. If you skip this step, you might run into issues with using it abroad. Once activated, I had no issues accessing data or staying connected while traveling, with a generous 12GB roaming allowance that suited my needs perfectly. Overall, this SIM card is a solid choice for travelers looking for an affordable way to stay connected across multiple destinations, and the 30GB (was 75GB at purchased, but Three removed that package) of data for UK use is a nice bonus if you’re traveling locally as well. Highly recommended for anyone needing a hassle-free roaming solution!

What a SCAM is that. The card doesn’t work, and of course you can’t get your money back for it. But

Fantastic choice! Simple install and activation instructions. Worked perfectly, giving me calls, texts and data in the USA

It probably deserves 4.5 stars, but that's not possible to give. Almost 5 stars except for one issue. Set up was fine and easy. It didn't activate exactly when I asked, but customer service was very responsive and helpful, even outside the hours they advertise. The packaging and emails say you need to make a UK phone call after activation, but that wasn't the case, confirmed by the seller. I needed to restart the phone for the data to work, that wasn't mentioned by the seller, but I've had similar before so knew what to do. It worked flawlessly in Singapore and Australia. The only slight issue was in Indonesia. The first day the local network must have been down as 4g was showing on the phone, but nothing worked. That wasn't the sellers fault obviously, but the sim only allowed you to connect to one network in Indonesia and that was the one that was down on that day. If I could have connected to an alternative it would have got 5 stars. Same at another island in Indonesia, only one network was available and it was one the sim wasn't allowed to connect to. Overall though, when the network was available it worked absolutely fine. I often managed to connect when 10-15 miles off shore as a bonus. Overall absolutely worth the money and great customer service too

Worked very well in Singapore and New Zealand.

I purchased this SIM primarily for roaming during my trip to Denmark. I requested activation two days before my departure, and it was ready by the following morning. Even though it was a Sunday, the process was handled smoothly and was ready in time for my flight. ​Once I arrived in Denmark, the signal picked up immediately without having to reconfigure any settings. I had no issues at all, and I could easily use tethering for my companion’s phone as well. ​Getting 40GB of data (including 6GB for roaming) for under £10 is an incredible deal. It made my trip very convenient, and I will definitely choose this SIM again for my next travels!

Easy to set up as long as you follow the instructions on the QR code not the Three ones inside. It was registered in minutes & showed my balance correctly. I made a call in the uk before I left to activate the roaming. My one bugbare was that in the USA I couldn’t use it to make calls which was my whole point of getting them! For any US calls you have to add credit so what’s the point?! I had to use the hotel phone to make & confirm bookings which was not great when trying to go out early in the day. I also had a spoof while I was out there which meant someone accessed my sim & sent texts to another No in my phone. It was scary & I didn’t know what to do. Tried to call/chat to Three but was impossible from US even using the international No they provide. Wouldn’t use again.