The best replacement for prepaid phone is contract.

The best alternatives to prepaid phone are rated as following:
★★★★★  contract
★★  contract phone
★  no contract

Your alternative for prepaid phone is not listed? Suggest!
Speaking about prepaid phone, one probably shouldn't forget about rollover minutes.

Other search terms related to prepaid phone and their ratings are:

★★★★★ rollover minutes
★★★★ sim card
You have in mind a companion for prepaid phone and it is not yet here? Propose!

Google Trends

Scale is based on the average worldwide traffic of prepaid phone in all years. Click on graph for more.
prepaid phone
contract phone