What is a business SIM-only contract?

Airtime only — calls, texts, and data — without a handset. Useful when the business already owns devices or buys handsets separately on a different cycle. Contracts run from one month upwards rather than the 24- or 36-month commitments handset deals lock you into.

Should we take individual SIMs or a pooled plan?

Per-line pricing usually tiers down with volume, and pooled data plans become available once you are past a handful of lines. The crossover where pooled beats per-line depends on how evenly your fleet uses data — heavy outliers eat into a pool faster than the average suggests. Ask providers to quote both for your actual usage pattern.

How do we move our existing numbers?

Porting a number is straightforward, but switching one network for another rarely gets you the best commercial outcome on its own. Build a requirement on Planpath with what you need — number of lines, data, contract term, account-management appetite — and let verified providers compete for it. Once you have picked a winner, we coordinate the port from your current network.

How fresh is this pricing?

We publish a weekly snapshot. The page also emits a structured freshness signal so search engines see the latest update date rather than relying on visible copy.

Live market dashboard

Live SIM-only pricing across the UK’s four major networks.

Real prices from EE, O2, Three, and Vodafone, refreshed every week. Built on the same Planpath market data our customers use to build their own deals.

Cheapest SIM-only deal in the market

Lowest £/month per network — last 10 weeks.

Cheapest unlimited SIM-only deal

Lowest £/month per network for unlimited-data plans — last 10 weeks. Gaps mean the network had no base unlimited plan that week.

Where each network sits today

Cheapest, median, and most expensive monthly cost per network — with the data band each price covers.

EE13 plans
Cheapest
£13/mo
1GB · 24m
Median £21High £31
Data 1GB – 100GB – Unlimited
O216 plans
Cheapest
£11/mo
1GB · 24m
Median £17High £25
Data 1GB – 50GB – Unlimited
Three15 plans
Cheapest
£12/mo
25GB · 24m
Median £19High £32
Data 3GB – 500GB – Unlimited
Vodafone23 plans
Cheapest
£13.33/mo
1GB · 24m
Median £25High £39.17
Data 1GB – 200GB – Unlimited

Best deal by use case

Cheapest plan in each cell. Cells highlighted as best value are the lowest price in the whole grid.

Data / Term	24 monthscontract	12 monthscontract	1 monthrolling
1-15 GB	Cheapest £11/mo O2 · O2 1GB Business SIM	£13/mo O2 · O2 1GB Business SIM	£17/mo O2 · O2 1GB Business SIM
16-50 GB	£12/mo Three · Three Business SIMO 25GB 24m	£16/mo Three · Three Business SIMO 25GB 12m	£19/mo Three · Three Business SIMO 25GB 1m
51+ GB	£17/mo Three · Three Business SIMO 80GB 24m	£19/mo Three · Three Business SIMO 80GB 12m	£23/mo Three · Three Business SIMO 80GB 1m
Unlimited	£17.50/mo O2 · O2 Unlimited Business SIM	£18.50/mo O2 · O2 Unlimited Business SIM	£31/mo EE · Business Essential Unlimited

How many plans each network sells

More plans does not mean more value — it can mean more noise to cut through.

Vodafone
23 plans
O2
16 plans
Three
15 plans
EE
13 plans

Cost per GB by network

Median £/GB across each network’s plans in that data band. Lower is better.

/GB	1-15 GB	16-50 GB	51+ GB	Unlimited
EE	£2.10	£0.46	£0.25	—
O2	£5.14	£0.67	—	—
Three	£6.00	£0.76	£0.09	—
Vodafone	£7.92	£0.92	£0.30	—

Better valueWorse valueUnlimited excluded — £/GB undefined

Frequently asked

Compare by carrier

Side-by-side business mobile comparisons against the four UK major networks — EE, O2, Three, and Vodafone.

Three
EE
Vodafone
O2

Build your own SIM-only deal

Use Planpath to brief providers in plain English. We turn your brief into a structured requirement and put it in front of the providers most likely to win it.

Build your deal

Last updated 14 Aug 2026. This pricing has not refreshed on schedule — treat the figures as indicative until it catches up.

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The market-moving SIM-only and device price changes, summarised — the competitor pull you’d otherwise do by hand. One email a week, unsubscribe any time.