Best 5G SIM only deals UK 2026
5G is now standard on virtually all UK SIM plans — you no longer pay a premium for it. What matters is which network delivers 5G in your area and which plan gives the best overall value.
Which networks have the best 5G?
EE has the most extensive UK 5G rollout — covering most major cities, many towns and growing suburban areas. The safest choice for consistent 5G outside London.
Vodafone is strong in major cities but more limited beyond them.
Three has the fastest peak 5G speeds where available but less geographic coverage than EE.
O2 has the most limited 5G rollout but is improving.
According to Ofcom's Connected Nations 2025 report, EE leads on 5G geographic coverage across the UK.
Best 5G SIM plans on EE
Budget networks on EE include 5G as standard at no extra cost:
1pMobile — from £1/month: EE 5G included. Pay as you use. Cheapest 5G SIM in the UK for light users.
Ecotalk 5GB — £4/month: EE 5G, EU roaming included, carbon neutral, 30-day rolling. Outstanding entry-level value.
Mozillion 25GB — £8/month: 25GB with EE 5G and EU roaming. One of the best overall value 5G plans in the UK.
Ecotalk 30GB — £12/month: Higher allowance with 5G, EU roaming and carbon neutral operations.
Do you need 5G?
Only if you regularly use your phone where 5G coverage exists. In practice, EE's 4G (30-80 Mbps typical) handles everything — 4K streaming, video calls, music, maps. 5G (200-1000 Mbps) adds speed but real-world benefit for most users is marginal except in congested city centres.
Check EE's coverage map for your postcode before making 5G a priority.
5G and battery life
5G uses slightly more battery than 4G. Limit to 4G in Settings → Mobile Data → Mobile Data Options → Voice & Data on iPhone if battery life is important. Typically adds 15-30 minutes of screen-on time per day.
Budget 5G vs major network 5G
Budget networks on EE (Mozillion, Ecotalk, 1pMobile) deliver identical 5G to EE direct customers — same masts, same speeds, same coverage. You save £15-20/month over EE direct for exactly the same 5G signal. A 25GB EE direct plan costs ~£28/month. Mozillion 25GB on EE: £8/month. Annual saving: £240.
Compare 5G SIM plans on GadgetRank →
Checking 5G coverage at your address
Before choosing a 5G plan, check whether 5G is actually available where you use your phone most. EE's coverage checker at coverage.three.co.uk (for Three) or the EE coverage checker shows your specific postcode's 5G availability.
A realistic picture: in central London, Manchester, Birmingham and major UK cities, 5G is available on EE and delivers meaningfully faster speeds. In suburban and rural areas, most connections are 4G regardless of your plan. If your postcode shows 4G only, a 5G plan offers no practical benefit over a 4G plan — choose based on data allowance and price rather than 5G.
Budget networks on EE include 5G at no premium — if 5G does become available in your area during your plan period, you benefit automatically.
Compare 5G SIM plans on GadgetRank →
Why compare on GadgetRank?
GadgetRank is an independent UK comparison site — not affiliated with any retailer, recycler or network. Every comparison is based on live price data. There are no paid placements or sponsored rankings. The best current offer appears at the top because it is the best current offer, not because of any commercial arrangement.
All retailers listed on GadgetRank meet minimum quality criteria: Trustpilot score of 4.0 or above, minimum 12-month warranty, battery health guarantee, and devices unlocked to all networks. This baseline means every option on GadgetRank is a trustworthy choice — the comparison is purely about price and any additional perks.