American phone buying ran on two-year service contracts for years, then shifted almost entirely to installment financing. The change altered what customers pay and what holds them in place.
The old model bundled hardware into service
Under contract pricing, the carrier discounted the phone heavily and recovered the difference through a monthly service price set above cost.
Leaving early meant an early termination fee, which represented the unrecovered subsidy converted into a penalty.
Because the subsidy was hidden in the service rate, customers who kept a phone past two years continued paying for a device already paid off.
Installment plans separated the two prices
Device financing splits the bill: a service price for the network and a separate monthly amount for the phone, spread over two or three years.
That separation let carriers advertise lower service rates and let customers bringing their own device stop paying a subsidy they were not receiving.
It also made the phone's full retail price visible, which had been obscured by the discounted figure quoted at signing.
Financing is credit, with the usual consequences
An installment agreement is a consumer credit contract, typically subject to a credit check and sometimes requiring a down payment.
Approval terms determine how much can be financed, so the same phone is more expensive upfront for customers with thinner credit histories.
The balance remains owed if the customer leaves, which is why device unlocking is usually tied to the device being paid off.
Bill credits became the retention tool
Promotional offers now deliver value as monthly credits applied against the installment balance rather than as an upfront discount.
Credits stop if the line is cancelled, leaving the remaining device balance due, which reproduces the old termination fee in a different form.
The commitment is therefore still present, but it is attached to the promotion rather than to a service contract.
Upgrade cycles lengthened as a result
With the device cost visible and spread over three years, upgrading before the balance clears became an obvious expense rather than an invisible one.
Buyers responded by keeping phones longer, which changed how manufacturers plan releases and how much year-over-year change a new model needs to show.
Longer ownership also raised the importance of battery replacement and software support, since a device now has to remain satisfactory well past its payment schedule.