O2 Business - 4GB SIM Only Plan

O2 Business is a great choice for SIM-only contracts. This specific deal - featuring 4GB 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.

Get a quote

4GB 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 If you are on a tight budget, SIM-only and E-SIM options could be a great deal for you, but slow, out of date hardware and shorter battery life could cost you more.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 contracts to keep your business mobile costs predictable and aligned with your budget cycle.
Data Allowance: 4GB of 4G/5G data per month - a solid allowance for regular mobile workers who browse, use apps and handle emails throughout the working day.
Calls & Texts: Unlimited standard UK minutes and texts included as standard, keeping your team connected without any surprise charges on your bill.
O2 Business Benefits: Access to the O2 Business app, dedicated account management and priority support, giving your business greater visibility and control over mobile spend.
International Roaming: Use your plan in 75+ destinations with O2 Travel, so your team can stay productive when travelling for business without expensive roaming surprises.
Flexible Add-ons: Easily bolt on additional data or roaming passes mid-contract if your team's usage grows, without the need to upgrade your plan.
Get a quote

Other O2 Business SIM-Only Plans

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

Unlimited calls

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

Unlimited calls

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

Unlimited calls

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

Unlimited calls

Build your quote
Unlimited
From £20 p/m
null Unlimited SIM only plan
SIM Only Unlimited Data

Unlimited calls

Build your quote

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.

Get a quote

Don't take our word for it

Rated ExcellentTrustpilot

We're also trusted by

O2 Business SIM Only FAQs

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

A four-gigabyte allowance is a highly cost-effective option for light data users and hybrid employees. It is perfectly tailored for staff members who spend the vast majority of their working day connected to a secure office or home Wi-Fi network, only needing their cellular data for basic tasks like checking emails, sending WhatsApp messages, or browsing the web during their daily commute.