Three UK review
Updated September 28, 2026 · NomadCue Editorial Team · Facts checked September 26, 2026
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Our verdict
Three UK suits anyone who wants their home UK contract to roam rather than buy a travel eSIM. It scores 7.3 here, with Go Roam in 160 countries and unlimited data on UK plans, so you keep the same number and bill. Setup means ordering a SIM from a carrier, not downloading a plan.
Key facts
- Best for
- Travellers already on a Three UK plan who want to roam on the same number and bill.
- Price from
- £8↗
- Countries covered
- 160↗
- Unlimited data
- Yes↗
- Hotspot sharing
- Yes↗
- 5G
- Yes↗
- Fair use policy
- Pay Monthly: up to 12GB of data allowance per month in any Go Roam destination; unlimited data in the UK has no data caps and no fair usage policy; Data Travel Passes are separate from the plan allowance with no fair usage limit↗
- Networks
- Nation's Network (combined Vodafone and Three network)↗
- Top-ups
- Yes↗
- Seller type
- Carrier↗
- 10 GB in Europe
- £16↗
- Legal entity
- Hutchison 3G UK Ltd↗
- Headquarters
- United Kingdom↗
- Founded
- 2002↗
- Support channels
- Phone, Help-centre, Community↗
- Region
- Regional, Global
- Features
- Unlimited data, 5G, Hotspot, Instant activation, Carrier plan
- Audience
- Short trips
- Official website
- three.co.uk
Pocket Wi-Fi
Facts checked September 26, 2026, 6 sources
Apps and profiles
Pros and cons
Pros
- Unlimited data at home, with Go Roam in 160 countries while you keep your UK number
- Plans start at £8, well under the site median of €5, with top-ups available
- Hotspot sharing is included, and 5G is available on the network
- Delivery is Home delivery next working day, so a new SIM arrives before a trip
Cons
- Pay Monthly roaming runs under a fair use policy, and abroad you get a set data allowance each month rather than truly unlimited data
- Support runs on phone, help centre and community only, with no live chat listed
- Price from £8 ranks 210 of 313 brands, so it is not a low-cost entry point
Who it suits
- Travellers on a UK contract who would rather roam than buy a separate travel eSIM
- Short trips where a monthly data allowance abroad is plenty
- People who need a UK number to keep receiving calls and messages at home
Who should look elsewhere
- Travellers with no Three UK plan, who would need to set up a new carrier contract first
- Long stays abroad, where the monthly roaming allowance runs out quickly
- Travellers wanting a single market eSIM with per GB pricing, where Zwitchy covers more countries
How Three UK compares
8.9 vs 9.3
8.9 vs 9.3
8.9 vs 8.5
8.9 vs 9.3
8.9 vs 9.5
8.9 vs 8.0
8.9 vs 9.2
8.9 vs 9.0
8.9 vs 8.9
8.9 vs 9.5
8.9 vs 8.5
8.9 vs 9.3
8.9 vs 8.9
8.9 vs 8.8
8.9 vs 9.2- 8.9 vs 9.6
- 8.9 vs 9.5
8.9 vs 9.5
8.9 vs 9.3
8.9 vs 9.3
8.9 vs 9.2
8.9 vs 9.2- 8.9 vs 9.2
8.9 vs 9.1- 8.9 vs 9.1
- 8.9 vs 9.1
8.9 vs 9.0
8.9 vs 8.8- 8.9 vs 8.7
8.9 vs 8.6
8.9 vs 8.6
Where Three UK is available
- Available
- United Kingdom
Countries from the brand (Source, checked September 26, 2026)
Frequently asked questions
How much does a Three UK plan cost?+
Plans start at £8 on the SIM page, which sits below the site median of €5. A separate Data Travel Pass costs £16 and sits outside your plan allowance, so it is billed on its own.
Is the data really unlimited when I travel?+
Not abroad on Pay Monthly. The fair use policy sets a monthly data allowance in each Go Roam destination, and Data Travel Passes are separate from the plan allowance. Unlimited data applies on UK networks, where the allowance is Unlimited and no fair use policy applies.
How many countries can I roam in?+
Go Roam covers 160 countries, which ranks 76 of 303 brands on coverage. Three is a carrier rather than a travel eSIM specialist, so the list comes from the home network's roaming terms.
Which network will I use abroad?+
You stay on Nation's Network (combined Vodafone and Three network), Three's combined home network, rather than switching to a local travel network. That means the service abroad follows the same coverage terms as the Go Roam list of 160 countries.
How do I get the SIM before I travel?+
The SIM comes from Three, not from a download link, and delivery is Home delivery next working day. Activation is described as instant once you have the SIM, so the setup is ordering a physical or carrier eSIM before departure.
Can I share data with a laptop or other devices?+
Yes. Hotspot sharing is listed as available, and a mobile broadband line supports 32 devices at once. Networks on the plan list include 5G, so tethering keeps full speed inside the UK.
What support can I reach if something goes wrong abroad?+
Support runs on phone, help centre and community, which is phone, help centre and community. Help centre and community work anywhere with a connection, while phone lines follow UK opening hours, so a problem late at night abroad gets a slower answer.
Who is this a good fit for?+
It suits short trips for people already on a UK contract, since the audience is short stays. If you have no Three plan, the setup is a full carrier contract from £8, so a travel eSIM is the quicker route. Three UK is GB based, operated by Hutchison 3G UK Ltd and trading since 2002.
Sources
- three.co.uk/broadband/mobile-broadband checked September 26, 2026
Backs: Data allowance, Devices connected, Pickup and delivery
“We have unlimited data available as one of our Pay Monthly plans.”
- three.co.uk/esim checked September 26, 2026
Backs: 5G
“all of our SIMs, including eSIMs, get access to our 5G network as long as your phone is 5G compatible”
- three.co.uk/sim checked September 26, 2026
Backs: Founded, Headquarters, Legal entity, Networks, Price from, Seller type
“(c) Hutchison 3G UK Limited 2002 - Present.”
- three.co.uk/support/roaming-and-calling-abroad/roaming-ab... checked September 26, 2026
Backs: 10 GB in Europe, Support channels
“7-day Europe Data Travel Pass: Get 18GB data when going abroad to our Data Travel Pass Europe destinations. 16”
- three.co.uk/support/roaming-and-calling-abroad/roaming-ab... checked September 26, 2026
Backs: Audience, Countries covered, Fair use policy, Region
“Go Roam is intended for our UK customers who are UK residents visiting a Go Roam destination for short periods, such as holidays or business trips.”
- three.co.uk/why-three/unlimited-data checked September 26, 2026
Backs: Features, Hotspot sharing, Top-ups, Unlimited data
“Can I use my unlimited data for tethering to other devices? Yes, if you've got unlimited data included in your plan you can use your phone as a personal hotspot.”
Compiled from 6 source pages, checked September 26, 2026. We did not open an account.
Not confirmed yet: Price per GB from.
Related by the facts
Three UK
Travellers already on a Three UK plan who want to roam on the same number and bill.