Onecom vs EE, Vodafone, O2 and Three: The Direct Comparison
Onecom vs EE, Vodafone, O2 and Three: The Direct Comparison
The Question Nobody Asks Until It Is Too Late
When Onecom quotes you for business mobiles, they are quoting you a Vodafone deal. That is their partnership. Vodafone is the network your SIMs will run on.
But here is the question most businesses never ask: would Vodafone even win if you compared all four networks?
In our experience comparing thousands of business mobile deals since 2008, the answer is no more often than you might think. About 40% of the time, the best deal for a given business is on a different network to the one they were originally quoted.
We are Compare The Networks, an independent, OFCOM-regulated comparison service. We compare EE, Vodafone, O2 and Three side by side, for free. Here is what that comparison actually reveals when you put Onecom up against going direct.
Onecom vs Direct: The Key Differences
Pricing
Onecom uses a cashback or discount model. You get an attractive rate for the first 17-18 months of a 36-month contract, then the price increases to the standard rate. The full-term cost is often significantly higher than it first appears. Read our detailed breakdown of Onecom's pricing model.
Direct network deals through a comparison service like ours typically offer a consistent price for the full contract term. The price you are quoted is the price you pay every month. No surprises at month 18.
Network Choice
Onecom puts you on Vodafone. If Vodafone coverage is excellent at all your locations, this may be fine. If it is not, you are stuck on the wrong network for up to 3 years.
Going direct through a comparison means you can choose EE, Vodafone, O2 or Three based on which network actually provides the best coverage at your postcodes. You might even split across networks if different locations need different coverage.
Contract Length
Onecom typically signs businesses to 36-month contracts. That is three years locked in to one network at prices that change mid-term.
Direct deals are available at 24 or 36 months. Shorter contracts give you more flexibility to switch if your needs change.
Account Management
Onecom provides a dedicated account manager. This is genuine value, particularly for businesses that want a single point of contact. However, many customers report that the account manager becomes harder to reach after the sale.
Direct network deals through us come with our support as your ongoing comparison partner, plus the network's own business support team. You can always come back to us at renewal to compare again.
Coverage Comparison: Why One Network Is Not Enough
Here is a real scenario we see regularly.
A business has staff in three locations: London, Manchester and Bristol. They go with Onecom, which means Vodafone.
| Location | Vodafone | EE | O2 | Three |
|---|---|---|---|---|
| London EC2 | Strong | Strong | Strong | Good |
| Manchester M1 | Good | Strong | Good | Strong |
| Bristol BS1 | Moderate | Strong | Good | Good |
In this scenario, EE covers all three locations well. Vodafone is only moderate in Bristol. The business on Onecom has a third of its team struggling with signal.
This is not unusual. Network coverage varies enormously by postcode, and no single network is best everywhere. The only way to know is to check all four at every location. That is exactly what we do when you get a free quote.
Price Comparison: Onecom vs the Four Networks
Let us compare a typical 10-line SIM-only deal with unlimited calls and 50GB data per line.
Onecom (Vodafone via reseller)
- Months 1-17: ~£25/line/month
- Months 18-36: ~£70/line/month
- 36-month total: ~£17,550
- Effective cost: ~£48.75/line/month
EE Direct
- 36 months at ~£28/line/month
- 36-month total: ~£10,080
Vodafone Direct
- 36 months at ~£27/line/month
- 36-month total: ~£9,720
O2 Direct
- 36 months at ~£26/line/month
- 36-month total: ~£9,360
Three Direct
- 36 months at ~£22/line/month
- 36-month total: ~£7,920
These are illustrative figures based on typical market rates we see. Your actual pricing depends on your usage, the number of lines, and what is available at the time. But the pattern is clear: even Vodafone direct is significantly cheaper than Vodafone through Onecom when you factor in the full 36-month cost.
The difference between the Onecom deal and the cheapest direct deal is nearly £10,000 over three years for just 10 lines.
What About the Account Manager?
This is the main argument for Onecom over going direct: the dedicated account manager who handles everything.
It is a valid point. Having someone who knows your setup and can handle changes, additions, and problems without you dealing with a call centre has real value. Some businesses happily pay a premium for that.
But consider:
- The premium is enormous. In our example above, the "account manager premium" is nearly £10,000 over 3 years. That is £277 per month extra for someone to handle your 10 mobile lines.
- The service often drops after the sale. This is one of the most consistent complaints across Trustpilot and the Onecom Facebook group (1,400+ members). The attentive account manager who sold you the deal becomes harder to reach once you are locked in.
- You get support anyway. When you compare through us, you get our team as your ongoing point of contact, plus the network's dedicated business support line. It is not the same as a named account manager, but for most businesses with a straightforward mobile setup, it is more than enough.
The Competitive Pressure Factor
Here is something subtle but important about how telecoms pricing works.
When Onecom quotes you, they are quoting from one network. Vodafone knows it is not competing against EE, O2 or Three for your business through that channel. There is no competitive pressure to sharpen the pricing.
When you compare through us, every network knows it is being compared against three alternatives. This competitive pressure consistently produces better pricing. It is the same reason you would not buy a house at the first asking price without checking comparable properties.
We typically find that businesses comparing through us pay 15% to 30% less than those who go through a single-network provider. That is not because we negotiate special deals. It is because competition works.
When Onecom Might Still Make Sense
We are not here to tell everyone to avoid Onecom. There are scenarios where they could be the right choice:
- You genuinely need a single provider for everything. If bundling mobiles, broadband, VoIP and IT support from one company simplifies your life enough to justify the premium, that is a valid business decision.
- You have confirmed Vodafone is the best network for all your locations. Not assumed. Confirmed, with a postcode-level coverage check.
- You have calculated the full 36-month cost and it is competitive against direct deals. Not just the introductory rate. The full-term total.
- Your account manager is genuinely excellent and continues to be responsive long after the sale.
If all four of those are true, Onecom might work for you. If even one is not, it is worth comparing.
Frequently Asked Questions
Is Onecom more expensive than going direct to a network?
In most cases, yes, when you compare the full 36-month cost rather than just the introductory rate. Onecom's discount model means the first 17-18 months look competitive, but the price increase for the remaining contract period often makes the total cost significantly higher.
Can I get Vodafone direct instead of through Onecom?
Yes. You can get Vodafone business mobile deals directly or through an independent comparison service. Going direct or through a comparison often results in a consistent monthly price for the full contract term.
Which network is best for business mobiles?
It depends entirely on where your team works. EE has the widest national coverage, but there are postcodes where Three, O2 or Vodafone outperform. The only way to know is to check coverage at every location. We do this for free.
Why would I use Compare The Networks instead of going direct?
We compare all four networks for you in one go, checking coverage at your postcodes and finding the best pricing. It saves time and ensures you are not missing a better deal on a network you did not think to check. Our service is free.
See What Your Business Could Save
Get a free quote and we will compare EE, Vodafone, O2 and Three for your business. You will see exactly what each network offers at your locations, at your usage level, with real pricing. 10 minutes. Free. No obligation.
Or read more:
- Onecom reviews, pricing and alternatives — our full Onecom review
- Onecom misselling: what you need to know
- Onecom contract problems explained
- How to leave Onecom — step-by-step switching guide
- Compare business mobile deals across all four networks
Nearly 20 years helping UK businesses. Over 1,000 verified reviews on Trustpilot. OFCOM-regulated. Free.
About this article. Claims reported here are attributed to public reviews on Trustpilot and similar platforms. They represent the opinions of the reviewers cited, not statements of fact by Compare The Networks. Brands named may dispute these claims. If you are a brand representative who believes any content requires correction, please contact us.
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