The Good The inexpensive Samsung Galaxy J3 runs the current version of Android and takes nice daylight photos. It has a long-lasting, removable battery and the camera app launches with a double-click of the home button. The Bad Its underpowered processor makes the photo-capture slow enough to miss action shots. The Bottom Line Light users will do fine with Samsung’s entry-level Galaxy J3, but you’ll want a higher-powered phone if you plan to keep it around for two years or more.
WHAT NETWORK FREQUENCIES ARE SUPPORTED BY THIS DEVICE: GSM: GSM850, GSM900, DCS1800, PCS1900 UMTS: B2(1900), B4(AWS), B5(850) 4G LTE: B2(1900) ,B4(AWS), B5(850), B12(700)
HOW LONG CAN I EXPECT THE BATTERY TO LAST ME: Well the battery (EB-BG530BBU) has 2600mAh which in a Usage time frame means Battery Talk Time Up to 9 hours Music Play Time of up to 71 hrs Video Play Time up to 13 hrs Internet Use Time on 3G up to 11 hrs on LTE: up to 12 hrs on Wi-Fi: up to 13 hrs before you need to recharge the battery.
WHAT DOES UNLOCKED REALLY MEAN: Unlocked devices are compatible with GSM carriers the kinds that Use SIM Cards for Service like AT&T and T-Mobile as well as with GSM SIM cards (e.g. H20, Straight Talk, and select prepaid carriers) Unlocked Devices will not work with CDMA Carriers the kinds that don’t use sim cards for service like Sprint, Verizon, Boost or Virgin (contact your network provider prior to purchasing for verification that they support GSM frequencies).