– Three Unlimited Data SIM Card – for Portable WiFi, Routers & Phones – Preloaded Until July 2027 – Dual Network (Three & Vodafone) Stronger Coverage

Some of the Scancom offers seem to provide very good value if you are prepared to commit to the term of the arrangement. This works well for me; I have a fairly good 5g signal and get anywhere between 100mbs and 400mbs which is enough for me. The speed varies quite a bit according to network conditions but has caused no problems so far.

I was getting tired of my broadband supplier locking me into a contract with built-in price rises, so I took a chance on buying a 5G router and this unlimited data sim. It was one of the best purchases I've ever made. I'm now getting upwards of 300 meg speed in the day, and 500 meg (sometimes) late at night, when the phone network is obviously less well used. That matches and exceeds my previous 250 meg broadband speed, which is a fibre line to the house. Fantastic. And if I go on holiday anywhere (UK only), or move house, I can take my super-fast broadband with me. As I've never been on the Three network before, I did check online to see if I was in a good area for Three, and it was fine. If you're still unsure, try a one-month sim to make sure it's a good network for you. But always come back to this company for your long-term deal - they do sims for all the other networks too. The cost per month is incredibly low, and I'm the kind of person who likes to pay once, up front, so now I don't have to pay again until July 2027. No internet bills for 19 months! Customer support was excellent. I needed the 'mature content block' removed, and that happened in less than 24 hours. There are more blocked sites than you think, not just the obvious ones, so you may need that. It's very easily removed, you just ask. Unlimited actually means 1000 GB of data, after which your connection is slowed until the month rolls over again. For me that's not a problem. The router is telling me how much I've used and I probably won't even break 500 GB this month. And that's with me watching a huge amount of internet TV, and doing a lot of downloads and uploads. Not a lot of 4K TV in that though, so if you have a big household and everyone wants to watch lots of 4K movies all day every day you might reach the 'limit'. Even then, the company contacted me and offered a 'truly unlimited' deal, but I didn't need it to pay the extra for that. One small niggle was that my IP address kept changing, sometimes every minute, and that made my banking site constantly log me out, and there were problems staying logged into my web-based email too. Looking online I found that you can change the default APN to '3internet' and that will give you an IP address which stays fixed for longer. My problems disappeared as soon as I did that. You'll need to check online how to do that with your router - mine is a Cudy 5G router, also bought from Amazon. From what I've seen this seems to be specific to the Three network. APN = 3internet, leave the username and password blank, and set 'Authentication type' to PAP. I bought this sim to test it until my fibre contract runs out, and it's so good that I've switched off my old box altogether, and use this sim card for 100% of my internet now, with 3 computers, a TV, tablet, and mobile phone wifi all connected to the same router, powered by this Three sim. Highly recommended.

Very good deal, though Three coverage is poor in my area and it can't find any Vodafone signal at all.

Very poor. I've previously had an EE SIM which has worked great. This gave extremely poor speeds (even though the THREE map shows good service in my area). It also doesn't seem to switch to Vodafone at all, even though it says it does! I tried to send this back to Amazon as I'd literally had it in my router for 1 hour and they were extremely unhelpful and refused my return. It's by far the worst customer care I've had from Amazon. Extremely disappointed. I feel that, as the SIM card is basically unusable, distance selling regulations should mean that I can return this within 14 days, but Amazon say no! Beware - DO NOT BUY unless you're absolutely sure!

Has bought before and works exactly as we need it for (a router in our caravan). Brilliant delivery- arrived the next day!! The speed is ok but I think it’s more our location than the card capability

None on the SIM cards advertised on here are unlimited data. However this is the best offer out the bunch you get 1000GB a month with the other network Unlimited cards there capped at 600GB a month. Not sure how they get away with false advertising. In my area I get a good 5G signal placing my router in a upstairs window. Fast enough for me to watch 4k streams on YouTube. The last SIM I had lasted to the expire date so hope this one the same...

Constant speeds of around 150-200. Fair use policy of 1000gb, which is more than enough.

Bought for my mobile Mifi device as in a property that can’t have cable. Easy set up, works great on my Apple TV etc. no problems so far.