OS	Android 4.4.2 (KitKat), Clean Pure Stock Android with Dual SIM Management
Chipset	MediaTek MT6582 (28 nm 1.3GHz Quad-Core with 4x Cortex-A7 1.3GHz & ARM Mali-400 MP2 Dual-Core GPU @ 500MHz with 1080p Hardware Video Decoder)
RAM	1GB High-Speed LPDDR2 RAM
Storage	8GB Massive High-Speed Internal Storage (5GB User Accessible)
Display	5.0 inches • 720 x 1280 pixels (16:9, 294 ppi HD!)
Main camera	8.0 MP Main (Autofocus, LED flash, Face Detection, Panorama, HDR, 1080p@30fps Full HD video recording)
Selfie camera	2.0 MP (720p HD video for Video Calling)
Battery	2000 mAh User-Replaceable / Removable Colossal Battery (Powers over 12 hours calling / 400 hours standby!), Micro-USB 2.0 charging • Removable Li-Ion 2000 mAh
Weight	150 g (5.29 oz)

Latest Vertex Impress U user agents:

User Agent	Browser	Platform
Mozilla/5.0 (Linux; U; Android 4.2.2; ru-ru; Impress U Build/JDQ39) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 GSA/9.94.7.16.arm	Google Search App 9	Android 4Impress U
Mozilla/5.0 (Linux; Android 4.2.2; Impress U Build/JDQ39) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/40.0.2214.115 YaBrowser/15.2.2214.3725.00 Mobile Safari/537.36	Yandex Browser 15	Android 4Impress U