Three 500GB Data SIM - Uncapped 5G - Preloaded MONTHLY Until November 2025 - Plug & Play for Routers & Phones - Access to Three & Vodafone - Connects to the Strongest Signal available

I bought this Three 500GB 5G SIM to use in a portable WiFi router at our martial arts academy and for travel across the UK — and I honestly wish I’d discovered it sooner. It’s preloaded with a huge 500GB of data every month until October 2025, which is phenomenal value, especially for anyone relying on mobile broadband for work or streaming.What I loved straight away:• Instant Activation: Pop the SIM in, wait a few minutes, and you’re online. No contracts, no registration hurdles, no top-ups to fiddle with. It just works.• Speed and Stability: I consistently get fast, reliable 5G and 4G coverage, especially in South Wales where we don’t always have the best signal. It’s been stable enough for Zoom meetings, streaming video, and multiple devices running at once via the router.• True Monthly Reset: Each month, like clockwork, the data resets. No hidden catches or rolling renewals — it’s exactly as advertised.What to keep in mind:• It’s a data-only SIM, so no calls or texts — which is perfect for routers and tablets, but worth knowing in advance.• If you’re using this in a phone, you’ll want to turn off automatic updates or background refresh if you’re a heavy app user — 500GB is a lot, but with 4K video or large downloads, it can disappear quicker than expected.Compared to pay-as-you-go options, this is dramatically better value. You’re essentially getting business-grade data at a fraction of the cost of regular rolling contracts, without the commitment. And unlike many data bundles, there’s no daily limit throttling — it’s full-speed access the whole time.Final verdict:If you work remotely, travel often, or just want a backup internet source that won’t let you down, this SIM is a no-brainer. It’s plug-in peace of mind until 2025 — and that’s rare these days.

This was perfect for getting a mobile 5G RV connection for the summer period. No long term commitment and plenty of monthly allowance at a reasonable cost.The coverage was fine, but guess that depends where you are!Using a dedicated 5Gs modem (TP-Link can be found on Amazon) seems to give a lot better reception than using your smart phone as a hot spot (compared as using same network on phone)So sadly I was able to watch Netflix and Prime video while away instead of enjoying the scenery!Would I buy again? Yes

This SIM deal is awful. Sure, it's cheap, but it's definitely not cheerful. Somehow, 3, the (near) equal worst network in the UK, have exceeded their dismal reputation. Occasionally they deliver respectable data bandwidth, (I'm based in the premium inner-city suburb of Islington, so you'd think they had their best network infrastructure here), but almost always, the upload rate is so bad that the connection fails. My (various 4 and 5G) phones do not recognise that there is a server ready to respond - and they time out. This is not building or exact location-specific. It's really poor and unstable all around the area.Let me spell this out... If you need a SIM to do any professional activities, then this is definitely not for you. You absolutely cannot do video calls, because the network is so unstable, that your call will drop out and cut off. If you want a short-term SIM for downloading videos or large amounts of data in the background - and don't mind restarting the downloads multiple times, then (maybe) this deal might work for you.The bottom line is, this is a seriously low-grade product/service and you get very little for what you pay.

I use this 500GB data SIM in my 5G router for home broadband and it’s superb. Speeds reach up to 1000Mbps down, and performance is rock solid. There’s a content filter by default, but a quick email to the provider had it removed the same day, no hassle at all. Highly recommended for anyone wanting fast, reliable home 5G.

Currently using in a Zyxel nr5103e 5G router and works great. I've had a few sims from scancom and all have been fine. Only issue is the customer support... There isn't any. You can send many messages and they tell you it's been sent to tech support, you can call up multiple times and they say tech will contact you. They never do!

I have purchased a few of these Data Sim's over the past few years. All running on the Three network. I found them to be fast and reliable. So. IF...you have a decent strength signal from the Three network, these Data Sim's are great value for money. Delivery was next day. Excellent product

Been using these Scancom data sims for the past two years on the "3" network. No problems and no complaints. Does exactly what it says on the tin. Prices vary, but if you choose carefully you'll get fantastic value for money. Currently, my 500 Gb per month sim works out at around £2.60 per month. I'd just recomment that before you buy, you try to make sure your local signal coverage is good.

Use this at a site where there is no land line. The only limiting factor is that the local phone mast has a restricted data bandwidth but that's not the product's fault and I've tested it against O2, Vodafoen and EE and it's most reliable for our needs.