O2 Unlimited Data SIM Card UK – Includes 30GB EU Roaming – Preloaded Data-Only SIM for Phones, Mobile WiFi & 4G/5G Routers

Sim would not activate and it was a message service when I phoned to report the issue. But I was contacted very quickly and they activated the sim within 30 mins. It went on to work perfectly for our holiday. My advice is to activate it a few days before you travel to make sure it activates. Overall a good product

Excellent customer service. Information to load sim is simple to understand. I had to contact customer services as I couldn't get Internet. Found I hadn't secured the sim in the device. Operator error!! Simon was wonderfully helpful and kind. Very quick to respond. Can throughly recommend

Sim card arrived today, gone through the process on the "sims4travel" website to activate the sim, something that shouldn't be needed as every other provider I have had sims from, just work with no need for emails, id scans, sim card numbers, order numbers, ancient archaeological history of the human race in order to work. The email you receive and the website both say "Activation will take up to 2 hours, more commonly 15 to 30 minutes", the sim card has still not activated after 2.5 hours. I should not have listened to the reviews saying "Worked straight away". I am going to give it till tomorrow morning (Monday) to start working or I will start a refund request with Amazon. **Update** So the sim card was activated on the Monday, however it was in the afternoon/evening when it was activated. There was an excuse of "O2 system issues" but after looking around it would appear that the sim cards don't get activated during a weekend, so that should be mentioned in the advert. The speed though is an issue though, it's atrocious, it's supposed to be 5G but connects only at 4G+ and only get's to 15Mbp/s at it's maximum for a few seconds then drops to less than 2Mbp/s, this is even after a "Sim Refresh". I know the area where I am currently has what is called "Natural Congestion" but in this area O2 are the only company who provides 5G and even within 100 meters of the mast, you still don't get 5G speeds. Overall, I have had to pay for the onsite Wi-Fi to get internet access which is an extortionate price but still cheaper than this sim was!

Title: A Reliable Backup Solution for Temporary Internet Outages Review: I recently came across a useful tool to overcome temporary internet outages during a transition between Internet service providers, and I must say, it has saved the day! The SIM card that I have integrated with my home router has provided uninterrupted connectivity for various devices in my house. One of the key advantages of this SIM card setup is its ability to keep essential functions running smoothly even during the transition period. My security cameras and doorbells continued to function flawlessly, ensuring the safety and security of my home. This was a great relief as I didn't have to compromise on vital components of my home security system or worry about any potential security breaches. Additionally, the SIM card-powered setup managed to keep most of my devices connected, allowing me to carry on with my daily routines with minimal interruptions. Browsing the internet, streaming movies, and accessing online content were possible, though I did experience occasional buffering. While it may not provide the same lightning-fast speeds as a conventional fixed-line connection, it is more than sufficient for basic internet usage. The convenience of this temporary connectivity solution cannot be overstated. It eliminates the hassle of finding alternative means of staying connected, as deploying this SIM card with my home router was a breeze. It offered a simple and straightforward setup process that required minimal technical know-how. In conclusion, if you find yourself in a predicament where your Internet service is transitioning, the SIM card solution for your home router is worth considering. It provides a reliable backup option, ensuring that important devices, such as security cameras and doorbells, remain operational. While it might struggle with heavy data usage, for everyday browsing and the occasional movie night, it performs admirably. I highly recommend this setup as a practical and convenient temporary internet solution.

Good product purchased as unlimited as it is being used to replace broadband till I move. Move delayed so needed something. Extremely good WiFi running multiple devices in my flat via TP Link m7000. Excellent products

I purchased this card for use with mobile wifi . The card has to be activated online and requires your Amazon order number (why)? along with the serial number printed on the card. Then press ‘activate’ only to receive a screen saying that ‘Your information could not be sent. Check the information and try again’. Which I did, several times. I tried calling the number for activation queries; as expected it went through to an automated system that tells you to leave a message with your email address. I did this, and later that evening got a call. The SIM was then activated at their end - seemed to be an issue with the serial number. Therefore I can praise the service aspect for putting things right, but the activation procedure is long winded and frustrating.

Great Company. Always ready to support their customers. No issue is to small for them to deal with. Excellent Customer Service. Highly recommend. Can use Sim Cards at home and also 25Gb monthly in Europe. Whats not to like ?. 5 Star ++

What a great little device helping us save a bunch of money. We use Rogers in Canada and they offer wifi calling which allows you to use wifi data to eliminate Roaming fees. So the 3 of us just arrived in the UK where normally we would buy a paygo sim from 3 but we are using a little tp link 4g modem and this unlimited data SIM for a month. We activated it after landing and we had it up and running before we left the Airport. We did have to send an email using the airport wifi which was easy. So now instead of 3 phones x $15/day for a month we have this investment and a device we can use over and over for years which easily fits in one of our bags. This combined with wifi everywhere is super convenient and The big plus compared to buying local sims when you travel is we keep our phone number and talk and text as usual wherever we are. Great plan!

Good Customer Service: they forgot my mail but then they solved the problem and activated my Sim Card in an hour with a call. I used the Sim with a travel router and I could work online without any troubles.

This was my third Sims4Travel chip using the 02 Data Plan and could not have been happier. Outstanding service, customer support and ease of use. They have set a new quality standard that others just can't come close to. Thanks again and looking forward to using your product/service again!

Sims4Travel hooked me up for the UK. Just wish i would of had them before i left the us. I left this same review on the Sims4Travel Vodafone sim. I talk about both sims. I purchased both at the same time and am fortunate to have found them. in the pictures is the O2 sim. but the wifi speed test is my simcard modem that is dual sim. this was the speed in this small town when the Vodafone and O2 sims were inserted and the connection was wifi to the laptop. the rest below is my experience with Sims4Travels which pertains to both their Vodafone and O2 unlimited data prepaid sims. Awesome product. I could not be happier. The best part about all this is the customer service is top notch. This company went above and beyond to get me running here in the United Kingdom. Their help phone number is beyond belief. I am writing this review with the aim of benefiting both travelers and my medical school colleagues who need to arrive in the UK with a functioning cellphone and plenty of data/Wi-Fi so they can stay on par with their colleagues, communications, and internet needs. I am a medical student from the United States. I flew to the UK in November 2023 to complete clinical rotations in the United Kingdom as part of my curriculum. Our rotations begin the same day which we arrive. Being properly prepared to switch cellphone carriers or make sure you have a plan in place for adequate Wi-Fi if needed will save you from a headache as you start the rotation in the hospital the same day you arrive. There are 300 or more Americans and Canadians from my school in the UK at any given moment. Hopefully this helps some of you and our colleagues that follow My visa application was pricey and came with a Sim Card. I thought that I had my phone situation solved “sorted.” I was wrong. The sim was slow and only allowed 2gb of data total. My apartment also came with Wi-Fi, but construction is mainly concrete where I am, and our Wi-Fi was only functional in our kitchen. My colleague, who also arrived in November, was assigned another region in the UK and his situation was more limited. His two cellphones were all locked. He was looking at having to buy a new phone. His apartment Wi-Fi was only functional from 5pm-8pm. The rest of the time it was lagging to the point it was unusable. You don’t appreciate what you have until you don’t have it. We both needed solutions to our cellphones to allow us to communicate with our preceptors and Wi-Fi that would allow us sufficient data to cover our medical resources online and also fast enough that we could attend the mandatory, weekly zoom/meetup meetings. With Clinicals having started the day we arrived in the UK. we were already going to be a week behind in studies. Playing catch up is never easy. I asked the locals what they used. some recommended Vodafone unlimited data plan and when you go to costa coffee, show them you are with Vodafone, you get a free coffee. I looked on Amazon so that I could have the Sim Cards delivered. (My recommendation is to get a proper Sim before you ever leave the country. Also, the Sim Card that comes with an expedited Visa should not be considered a solution.) I found the Sims4Travel site listing Vodafone and O2 sim cards that were prepaid and had unlimited data. I then checked their cell tower strength in London, our locations, and overall reception in UK. Both Sims looked like possible solutions to me I purchased both as I needed something that worked ASAP. I also purchased a sim card router to put them in. I showed my colleague who immediately purchased the Vodaphone sim and a mobile router the size of a phone that had a 13-hr. battery for just over a hundred bucks. His arrived first and He tested it in the basement. Using the sim card modem he was streaming a video on the laptop while simultaneously being in a what’s app video call with me. He had no connectivity problems... He was stoked. He had a functional solution. He just carries his sim card modem in his pocket, and it gives him wi-fi everywhere he goes and to multiple devices at a time. my experience with the customer support really means a lot to me. My Vodafone sim card arrived a few days after my buddy got his. I had ordered a different modem than my colleague and I was struggling to figure out how to set it up. I contacted the modem support chat who said, “Vodafone should work in the Wi-Fi 6 modem, please reach out to the carrier. Sims4Travel had a post card in the package with online activation, and tech support email and phone number. I called it and there was an immediate answer. He went through the settings with me while I was on the phone. He sent me a screenshot of how it needed to look. We eventually got it running. Two days later my other sim arrived, O2-sim. (I plan to use one sim in my phone, but my modem can also run dual sims. if needed, I can put both sims in my modem and then my connection becomes really fast... I called the Sims4Travel, and I got the same guy, and he remembered me. He treated me as a friend. Far better than I have ever been treated by a phone company in the United States. We initiated the 2-hour activation, I received a text that the sim was now active. An additional 3 hours passed before I tried the Sim in any application. At this time, I received a text not from a machine, but the tech support I spoke with prior, asking if the Sim was functioning properly. I confirmed that it was. Costumer service is top notch. I believe for those traveling to the UK, who require cellular and data connections, this product paired with its customer support is the best. Also, to the medical students coming to the UK, make sure you know if your carrier covers the UK and at what rate. I had other colleagues with coverage that their phones charged an additional connection fee of $5-10 per day. If you are in this situation, I would highly recommend that you sort this out before you leave the United States/Canada. It would have saved me a lot of time my first week of clinicals. If you are like my colleague and myself, not only looking for a solution for our mobile phones, but we also needing a mechanism of getting Wi-Fi without signing a cellular contract. These prepaid data sims became the solution for both. They will work in unlocked phone and the sim card modems. The costumer support is better than any other company I have worked with. I wish that I would have had this sim before I left the United States as it is an essential precaution for me as medical students. The loss is minimal if not needed and an essential time saver if needed.

Worked great in the Caribbean You have to turn your settings to manual for network selection to work better It does not work in canada