Estalky E618 is a android based rugged poc smartphone which build with dedicated PTT and SOS button for critical communication and push to talk with touch screen. From Oct.2021, E618 POC Device have upgraded system to android 11 with GMS certification. memory have upgrade to 4/64gb which provide enough space for video or picture storage and its management. meanwhile its cpu use Heli P20 MTK6762 Octa core cpu which is 2.0gh for its speed. it also add desk charging pin on the back case which support desk charger for fast charging request.