O2 Business - Unlimited SIM Only Plan

O2 Business is a great choice for SIM-only contracts. This specific deal - featuring Unlimited of high-speed data and unlimited calls and texts is designed for those who need enough data for emails, video calls, and on-the-go productivity without the unlimited data price tag.

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Unlimited O2 Business Deal Features

SIM-only prices can be a lot cheaper, but you don't get to upgrade your phones. If you are on a tight budget, SIM-only and E-SIM options could be a great deal for you, but slow, out of date hardware and shorter battery life could cost you more.

Contract Length: Choose between 12 or 24-month contract terms, giving your business total flexibility whilst locking in an excellent rate on an unlimited data plan.
Data Allowance: Truly unlimited 4G/5G data with no caps, throttling or overage charges - perfect for businesses where mobile connectivity is absolutely critical to daily operations.
Calls & Texts: Unlimited standard UK minutes and texts included as standard, giving your entire team the freedom to communicate as much as they need without restrictions.
O2 Business Benefits: Benefit from O2's premium business support, dedicated account management and full access to the O2 Business portal to manage your mobile estate with ease.
International Roaming: With O2 Travel covering 75+ destinations, your team can work from virtually anywhere in the world without worrying about data limits or unexpected roaming bills.
Flexible Add-ons: Complement your unlimited plan with international calling bolt-ons or specialist roaming passes to ensure seamless connectivity wherever your business takes you.
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Other O2 Business SIM-Only Plans

2 GB
From £8 p/m
2 GB SIM only plan
SIM Only 2 GB Data

Unlimited calls

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4 GB
From £9 p/m
4 GB SIM only plan
SIM Only 4 GB Data

Unlimited calls

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6 GB
From £11 p/m
6 GB SIM only plan
SIM Only 6 GB Data

Unlimited calls

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20 GB
From £14 p/m
20 GB SIM only plan
SIM Only 20 GB Data

Unlimited calls

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100 GB
From £16 p/m
100 GB SIM only plan
SIM Only 100 GB Data

Unlimited calls

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Why not go direct to O2 Business?

Buying your O2 Business mobile contract through a partner like The Business Hub means you get the best of both worlds: the massive infrastructure of the UK's most reliable network, and an independent comparison to the whole market and other networks. Pair this with a dedicated account manager who actually knows your name and you can see why name like Ralph Lauren and Red Bull use us for their mobile provision.

We don't just sell and forget. We provide free tools monitor your fleet's usage to ensure you aren't overpaying for data you don't need, and we handle the admin heavy stuff - like PAC code transfers and bulk device setups - so your team can get on with doing business. And our 45 second response promise mean you are never left in the lurch.

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O2 Business SIM Only FAQs

Need to know more about O2 Business Business SIM Only contracts? We've got you covered.

An unlimited data tariff is the ultimate peace-of-mind solution for enterprise power users, frequent travellers, and permanent remote workers. It is specifically built for employees who rely entirely on their cellular connection for bandwidth-heavy tasks like constant high-definition video conferencing, massive cloud data transfers, and extensive tethering without the company ever worrying about out-of-bundle data charges.