In January we bought a Digicel sim card for $5. Loaded it with $15 worth of credits and still had about $2.50 worth of credits after our 8 day vacation. Hope this helps. Make sure the phone is unlocked. If the phone is older then call your provider and they will send you an unlock code. It takes 24-48 hours with AT&T ao make sure to do it in advance. Respect!