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iD Mobile 24-month SIM only deals

iD Mobile's 24-month SIM only deals lock in your lowest monthly price for two years on the Three network, ideal if you won't want to switch soon.

Is a 24-month iD Mobile SIM only deal worth it?

A 24-month SIM only deal locks in your monthly price for two years, which can work out cheaper per month than shorter terms.

It suits people who are happy on the Three-based network and want predictable billing without thinking about switching soon.

Can I change my plan during a 24-month iD Mobile contract?

iD Mobile usually lets you move up to a larger plan mid-contract if your needs grow, though dropping to a smaller one may have to wait until the term ends.

Check your account options or contact iD Mobile directly before making any changes.

Our top pick
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£35 cashback (automatic)

5G SIM Only 60GB - 24 months

Data
60 GB
(Unlimited speed included)
Sold by:Mobiles.co.uk logo
Allowances
Unlimited minutes
Unlimited texts
Contract
24 months
Total cost: £192
Price
£8per 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 Unlimited - 24 months

Data
Unlimited
(Unlimited speed included)
Sold by:Carphone Warehouse logo
Allowances
Unlimited minutes
Unlimited texts
Contract
24 months
Total cost: £360
Price
£15per month
Get deal

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Unlimited speed

iD Mobile 5G SIM Only 20GB - 24 months

Data
20 GB
(Unlimited speed included)
Allowances
Unlimited minutes
Unlimited texts
Contract
24 months
Total cost: £168
Price
£7per month
Get deal
logo
Unlimited speed

5G SIM Only 300GB - 24 months

Data
300 GB
(Unlimited speed included)
Sold by:Mobiles.co.uk logo
Allowances
Unlimited minutes
Unlimited texts
Contract
24 months
Total cost: £384
Price
£16per month
  • Each April iD monthly prices rise by £1.50.
Get deal
logo
Unlimited speed

5G SIM Only 60GB - 24 months

Data
60 GB
(Unlimited speed included)
Sold by:Carphone Warehouse logo
Allowances
Unlimited minutes
Unlimited texts
Contract
24 months
Total cost: £192
Price
£8per month
Get deal
logo
Unlimited speed

iD Mobile 5G SIM Only 40GB - 24 months

Data
40 GB
(Unlimited speed included)
Allowances
Unlimited minutes
Unlimited texts
Contract
24 months
Total cost: £192
Price
£8per month
Get deal
logo
Unlimited speed

5G SIM Only 60GB - 24 months

Data
60 GB
(Unlimited speed included)
Sold by:Mobiles.co.uk logo
Allowances
Unlimited minutes
Unlimited texts
Contract
24 months
Total cost: £192
Price
£8per month
  • Each April iD monthly prices rise by £1.50.
Get deal
logo
Unlimited speed

5G SIM Only 100GB - 24 months

Data
100 GB
(Unlimited speed included)
Sold by:Carphone Warehouse logo
Allowances
Unlimited minutes
Unlimited texts
Contract
24 months
Total cost: £240
Price
£10per month
Get deal
logo
Unlimited speed

iD Mobile 5G SIM Only 6GB - 24 months

Data
6 GB
(Unlimited speed included)
Allowances
Unlimited minutes
Unlimited texts
Contract
24 months
Total cost: £144
Price
£6per month
Get deal
logo
£42 cashback (automatic)

5G SIM Only 250GB - 24 months

Data
250 GB
(Unlimited speed included)
Sold by:Mobiles.co.uk logo
Allowances
Unlimited minutes
Unlimited texts
Contract
24 months
Total cost: £336
Price
£14per month
  • Each April iD monthly prices rise by £1.50.
Get deal
logo
Unlimited speed

5G SIM Only 20GB - 24 months

Data
20 GB
(Unlimited speed included)
Sold by:Carphone Warehouse logo
Allowances
Unlimited minutes
Unlimited texts
Contract
24 months
Total cost: £144
Price
£6per month
Get deal

Showing 1 to 10 of 25 results

A 24-month contract with iD Mobile is typically its longest commitment, generally offering the lowest monthly price of its standard terms. Running on Three's network, it's worth considering if you're confident you'll be happy with the same coverage and data allowance for a full two years.

1. The value case for two years

Providers, including iD Mobile, typically reward longer commitments with a lower monthly price. If minimising cost is your priority and you're comfortable being tied in, this is usually the cheapest standard option.

2. What you're trading for that price

Two years is a long time to be locked into a specific allowance and price. If your usage grows, or better deals appear elsewhere, you'll generally need to wait until renewal, since early exit typically means paying for the remaining months.

3. Checking Three's network before a long commitment

Since iD Mobile runs over Three's infrastructure, check Three's coverage specifically for where you live and work before locking in for two years.

4. Comparing against shorter iD Mobile terms

If two years feels too long, compare this option against iD Mobile's 12-month deals or its 30-day rolling plans for more flexibility.

5. Frequently asked questions

Is a 24-month iD Mobile contract the cheapest option?
Often it offers the lowest monthly price of iD Mobile's standard terms, though it's worth comparing against renewing a shorter contract over the same period.

What happens if I need to leave early?
You'll typically need to pay for the remaining months on the contract.

Does iD Mobile's 24-month plan include more data than shorter terms?
This varies by specific offer, so compare the exact allowance and price directly.

What network does iD Mobile use?
iD Mobile runs over the Three network, so coverage matches Three's own service in your area.

6. Conclusion

iD Mobile's 24-month contract typically offers the lowest monthly price of its standard terms on Three's network, in exchange for the longest commitment. Compare it against shorter terms before locking in for two years.