Connectivity and Performance
Battery life is good on this small device. With an 1850mAh battery lasting up to 10 hours of talk time and 40 hours of music playback. If you do happen to run low, there’s Ultra Power Saving mode to squeeze out a bit more juice. Running Android 4.4.4 KitKat, there’s 4GB of built in storage with microSd support up to 128GB. Connectivity includes Wi-Fi, 3G and Bluetooth 4.0. The J1 has a 1.2GHz dual-core processor with 512MB RAM.