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Asus Zenfone 4 (2014) has Android 4.3 (Jelly Bean), It offers an internal memory of 4/8 GB with 1 GB RAM, It presents a screen of WVGA resolution, And it comes with a battery capacity of 1200/1600 mAh .

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Asus Zenfone 4 (2014) specifications

General

6621 Announce date : January, 2014
6621 Release date : May, 2014
6621 Height × Width : 124.4 mm x 61.4 mm
6621 Thickness : 11.2 mm
6621 Weight : 115 g (4.06 oz)
6621 SIM : Dual SIM (Micro-SIM, dual stand-by)
6621 Colors : Black, Pearl White, Cherry Red, Sky Blue, Solar Yellow

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Display

6621 Display type : TFT capacitive touchscreen, 16M colors
6621 Screen size : 4.0 inches (~59.6% screen-to-body ratio)
6621 Resolution : 480 x 800 pixels [ WVGA resolution ]
6621 Pixel density : (~233 ppi pixel density)
6621 Multitouch feature :   yes
6621 Protection : Corning Gorilla Glass 3

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Camera & Video

6621 Rear camera : 5 MP, AF
6621 Video : 1080p@30fps [ Full HD video ]
6621 Front camera :   yes

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Memory

6621 Expandable memory : Card slot microSD, up to 64 GB (dedicated slot)
6621 Internal Memory : 4/8 GB
6621 RAM : 1 GB RAM

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Battery

6621 Battery type : Removable Li-Po
6621 Battery capacity : 1200/1600 mAh
6621 Stand-by : Up to 192 h (3G)
6621 Talk time : Up to 10 h (3G)

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Platform

6621 Operating System : Android 4.3 (Jelly Bean), upgradable to 4.4.2 (KitKat)
6621 Chipset : Intel Atom Z2520
6621 Processor : Dual-core 1.2 GHz
6621 Graphics : PowerVR SGX544MP2

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Network

6621 2G bands : GSM 850 / 900 / 1800 / 1900
6621 3G bands : HSDPA 850 / 900 / 1900 / 2100
6621 Speed : HSPA 42.2/5.76 Mbps
6621 GPRS :   yes
6621 EDGE :   yes

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Sound

6621 Alert types : Vibration, MP3, WAV ringtones
6621 Loudspeaker :   yes
6621 3.5 mm jack :   yes

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CONNECTIVITY

6621 WLAN : Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot
6621 Bluetooth : 4.0, A2DP, EDR
6621 GPS :   yes, with A-GPS, GLONASS
6621 USB : MicroUSB 2.0
6621 Radio : FM Radio

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Features

6621 Sensors : Accelerometer, Proximity
6621 Messaging : SMS (threaded view), MMS, Email, Push Email, IM
6621 Browser HTML :   yes
6621 Voice memo/dial :   yes
6621 MP3/WAV/eAAC+ player :   yes
6621 MP4/H.264 player :   yes
6621 Document viewer :   yes
6621 Photo viewer/editor :   yes

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Asus Zenfone 4 (2014) disadvantages

6621 NFC :   No
6621 Infrared port :   No
6621 Water & Dust resistant :   No
6621 Fingerprint sensor :   No
6621 Compass sensor :   No
6621 Gyroscope sensor :   No
6621 Ambient light sensor :   No
6621 Barometer sensor :   No
6621 Temperature sensor :   No
6621 4G/ LTE :   No
6621 Active noise cancellation with dedicated mic :   No
6621 Fast battery charging :   No