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iD Mobile 30-day SIM only deals

iD Mobile's 30-day SIM only deals are rolling contracts on the Three network, so you can cancel or switch with around 30 days' notice.

How does a 30-day iD Mobile SIM only deal work?

A 30-day (rolling) plan renews each month and can be cancelled with around 30 days' notice, giving you maximum flexibility.

It's ideal if you want to avoid a long contract or are trying out the Three-based network before committing.

Can I cancel an iD Mobile 30-day plan whenever I want?

Yes. Rolling 30-day plans aren't tied to a fixed term, so you can leave by giving the required notice, which is typically 30 days.

You won't face the early-exit fees that come with longer 12 or 24-month contracts.

Our top pick
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Unlimited speed

5G SIM Only 108GB - 1 month

Data
108 GB
(Unlimited speed included)
Sold by:Mobiles.co.uk logo
Allowances
Unlimited minutes
Unlimited texts
Contract
1 month
Price
£9per month
  • Each April iD monthly prices rise by £1.50.
14-day return policy for online purchases
Get deal
logo
Unlimited speed

5G SIM Only 108GB - 1 month

Data
108 GB
(Unlimited speed included)
Sold by:Carphone Warehouse logo
Allowances
Unlimited minutes
Unlimited texts
Contract
1 month
Price
£9per month
Get deal

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Unlimited speed

iD Mobile 5G SIM Only Unlimited - 1 month

Data
Unlimited
(Unlimited speed included)
Allowances
Unlimited minutes
Unlimited texts
Contract
1 month
Price
£15per month
Get deal
logo
Unlimited speed

5G SIM Only 110GB - 1 month

Data
110 GB
(Unlimited speed included)
Sold by:Mobiles.co.uk logo
Allowances
Unlimited minutes
Unlimited texts
Contract
1 month
Price
£10per month
  • Each April iD monthly prices rise by £1.50.
Get deal
logo
Unlimited speed

5G SIM Only 80GB - 1 month

Data
80 GB
(Unlimited speed included)
Sold by:Carphone Warehouse logo
Allowances
Unlimited minutes
Unlimited texts
Contract
1 month
Price
£8per month
Get deal
logo
Unlimited speed

iD Mobile 5G SIM Only 108GB - 1 month

Data
108 GB
(Unlimited speed included)
Allowances
Unlimited minutes
Unlimited texts
Contract
1 month
Price
£9per month
Get deal
logo
Unlimited speed

5G SIM Only Unlimited - 1 month

Data
Unlimited
(Unlimited speed included)
Sold by:Mobiles.co.uk logo
Allowances
Unlimited minutes
Unlimited texts
Contract
1 month
Price
£15per month
  • Each April iD monthly prices rise by £1.50.
Get deal
logo
Unlimited speed

5G SIM Only Unlimited - 1 month

Data
Unlimited
(Unlimited speed included)
Sold by:Carphone Warehouse logo
Allowances
Unlimited minutes
Unlimited texts
Contract
1 month
Price
£15per month
Get deal
logo
Unlimited speed

iD Mobile 5G SIM Only 110GB - 1 month

Data
110 GB
(Unlimited speed included)
Allowances
Unlimited minutes
Unlimited texts
Contract
1 month
Price
£10per month
Get deal
logo
Unlimited speed

5G SIM Only 300GB - 1 month

Data
300 GB
(Unlimited speed included)
Sold by:Mobiles.co.uk logo
Allowances
Unlimited minutes
Unlimited texts
Contract
1 month
Price
£14per month
  • Each April iD monthly prices rise by £1.50.
Get deal
logo
Unlimited speed

5G SIM Only 50GB - 1 month

Data
50 GB
(Unlimited speed included)
Sold by:Carphone Warehouse logo
Allowances
Unlimited minutes
Unlimited texts
Contract
1 month
Price
£7per month
Get deal

Showing 1 to 10 of 23 results

A 30-day rolling plan with iD Mobile lets you leave with a month's notice, without a long-term commitment. This flexibility typically costs a little more per month than iD Mobile's 12-month or 24-month contracts, but suits anyone who values being able to change their mind.

1. Who benefits from a rolling iD Mobile plan

  • Anyone testing Three's network in their area before committing longer term.
  • Switchers with uncertain plans, who don't want the risk of a fixed contract.
  • Anyone who's been caught out by a long contract before.

2. Testing Three's coverage first

A rolling plan lets you check how Three's network performs in your specific area before signing up for a longer, better-value iD Mobile contract. If it performs well, consider switching to a 12-month term for a better price.

3. The price trade-off

Because iD Mobile isn't guaranteed your custom for a fixed period, rolling plans typically cost a little more per month for the same data allowance.

4. Frequently asked questions

How much notice do I need to leave a rolling iD Mobile plan?
Typically 30 days, though check the exact terms directly with iD Mobile.

Is a rolling plan always pricier than a fixed-term contract?
Usually the monthly price is a little higher for the same allowance, in exchange for not committing to a fixed period.

Can I switch to a longer iD Mobile contract later?
In many cases yes, once you're confident in Three's network performance for your area.

What network underpins iD Mobile?
iD Mobile runs over the Three network, so coverage matches Three's own service.

5. Conclusion

iD Mobile's 30-day rolling plan offers genuine flexibility on Three's network, ideal for testing coverage or avoiding commitment. If you're confident you'll stay longer, comparing against its 12-month or 24-month contracts will likely save money.