I'm thinking of buying Energizer POWER MAX P550S Dual-SIM 16GB Factory Unlocked 4G/LTE Smartphone - Black. Android 7.0 Nougat, Energizer P550S, GSM 850 / 900 / 1800 / 1900 MHz, Touch Screen Phones,Energizer P550S,9SIAEJW9MS2977,View Return Policy. I would like to have a fast and smooth phone with good software, long software support and a nice camera. Is Energizer POWER MAX P550S Dual-SIM 16GB Factory Unlocked 4G/LTE Smartphone - Black worth the money $329.00? Any reviews?