This comparison is not “contract versus no contract”. It is a handset-inclusive route versus acquiring the phone separately and paying for airtime on its own terms.
Build both columns
| Line | Handset-inclusive route | Phone plus SIM-only |
|---|---|---|
| Phone | All device payments and upfront amounts | Cash price or separate finance total |
| Airtime | Every core subscription payment | Every SIM payment |
| Price changes | Apply stated rises by date | Apply stated SIM changes by date |
| Ownership | Check the device agreement | Usually follows the purchase or finance terms |
| Exit | Airtime charge plus any device balance | SIM exit plus separate finance position |
| Residual value | Same exact phone assumption | Same exact phone assumption |
Illustrative result
A handset-inclusive route might total £1,260 over 36 months. Buying the phone for £610 and using a £10 monthly SIM totals £970 before finance cost. If the separate phone is financed to £690, the comparison becomes £1,050. These are illustrative figures.
Compare documents, not labels
Some providers separate airtime and device plans; others structure the transaction differently. Confirm lender, ownership, settlement and minimum terms from the actual documents.
Value flexibility
A separate phone and short SIM plan can make switching easier, but only if the phone purchase is affordable. A bundled route can be competitive when the whole-term price is genuinely lower and the terms suit the user.
Cash-flow and total cost are different
The cheaper total may require a larger upfront payment. Compare affordability without allowing a low monthly figure to hide a higher whole-term cost, and without recommending an upfront purchase that would remove necessary emergency savings.
Repeat the calculation when the allowance differs
A handset-inclusive plan with 100GB is not directly comparable with a 10GB SIM if the user needs 40GB. Normalise the allowance or assign a clear value to the difference.
Related guides
Sources and date checked
Official information checked 26 July 2026. Product prices, contract terms and retailer policies can change, so verify the current document before acting.
