Phone Contract or Buy It Outright?
A 24-month contract feels cheap because the numbers are small. Add them up, compare with buying the phone and a SIM-only deal, and find the interest rate hiding inside the contract.
Where this idea comes from
Start here — this is the source that inspired this exploration.
Introduction
Pick a phone you actually want. There are two honest ways to own it: pay full price today and add a cheap SIM-only plan, or sign a 24-month contract with nothing (or little) up front. The contract spreads the cost — but spreading cost is exactly what a loan does, and loans charge interest. Somewhere inside that monthly figure is an interest rate nobody printed on the poster. Real deals are a few clicks away, so the whole investigation runs on data you collect yourself — and it may genuinely change what you do when your contract is next up.
Guiding Questions
- Choose one phone and collect real prices: the handset bought outright, a cheap SIM-only plan, and two or three 24-month contract offers for the same phone.
- Total each route over the full two years. How big is the gap — and does the cheapest route change if you keep the phone a third year?
- The contract is really a loan for the handset. Work out what the contract charges you per month for the phone alone, then find the interest rate that turns the shop price into those payments.
- Compare that hidden rate with what a bank would charge, and with what your savings would earn. When, if ever, is the contract the rational choice?
- Your comparison rests on assumptions you chose. Change one — your choice — and see whether the winner changes.