Choosing between postpaid, prepaid, or resold service depends on your needs and preferences. Postpaid plans require paying for service at the end of each billing cycle, a credit check, and may come with a contract or early termination fees. They offer perks like subsidized phones and international roaming, but can be more expensive. Prepaid plans require upfront payment, no credit check or contract, and can be a good option for those on a budget or who want more flexibility, but may not include as many perks. Resold service is a type of prepaid service offered by third-party providers with more affordability, but may have coverage limitations and data speed caps.