Please note: Unlocked cell phones are not locked to a carrier s network. Your phone and carrier can be selected independently. Unlocked cell phones are compatible with GSM networks and GSM SIM cards.The BLU Life One Smartphone has everything you need to connect with your world on-the-go. Enjoy 4G LTE speeds, surf the web, take and share pictures and more. Android 2.3.5 (Gingerbread) OS lets you complete any task and navigate your BLU Life One Smartphone with ease.