Acer Liquid Zest Plus vs Celkon A21
Acer Liquid Zest Plus
Celkon A21
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Network
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2G networkGSM 850, 900, 1800, 1900GSM 900, 1800
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3G networkHSDPAHSDPA 2100
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4G networkLTE-
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HSDPA speed-HSDPA
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HSPA speedHSPA-
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LTE speedLTE-
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2016-42014-12
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Status2016-52014-12
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Design
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SIMSingle SIM (Micro-SIM) or Dual SIM (Micro-SIM, dual stand-by)Dual SIM (dual stand-by)
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Height-124.8 mm
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Width-66.1 mm
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Thickness-10.8 mm
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Weight-115.3 g
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ColorsBlue, WhiteBlack, Blue, Red
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Display
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Display typeIPS LCD capacitive touchscreenCapacitive touchscreen
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Physical size5.5 inches4.0 inches
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Resolution720 x 1280 pixels320 x 480 pixels
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Pixel density267 ppi144 ppi
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Display colors16777216-
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MultitouchYes-
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Hardware
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CPUQuad-core 1.3 GHz ARM Cortex-A53Dual-core 1.2 GHz
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ChipsetMediatek MT6735Mediatek MT6582
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GPUMali-T720MP2-
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Memory ROM-512 MB
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Memory RAM2 GB256 MB
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Internal storage16 GB-
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Memory cardmicroSDmicroSD
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Memory card max-32 GB
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OS
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OSAndroid OS, v6.0 (Marshmallow)Android OS, v4.2.2 (Jelly Bean)
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Main camera
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Main camera13 MP3.15 MP
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Primary camera video1080p@30fpsvideo
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Primary camera Autofocusphase detection autofocus-
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Primary camera flashLED flash-
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Primary camera laser autofocuslaser autofocus-
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Camera featuresGeo-tagging, HDR, face detection, panorama, touch focus-
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Selfie camera
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Selfie camera5 MP1.3 MP
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Sound
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3.5mm jackYesYes
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LoudspeakerYesYes
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NotificationsVibration; MP3, WAV ringtonesVibration, Polyphonic, MP3 ringtones
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Connectivity
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WLANWi-FiWi-Fi
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USBmicroUSB 2.0Yes
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BluetoothYesv4.0
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GPSYes, with A-GPSNo
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Features
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Messaging SMSSMS(threaded view)SMS(threaded view)
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Messaging MMSMMSMMS
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Messaging EmailEmailEmail
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Messaging IMIM-
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Messaging Push MailPush Mail-
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JavaNoYes, via Java MIDP emulator
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SensorsAccelerometer, compass, proximity-
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Browser
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HTMLHTML5Yes
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Battery
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Battery typeLi-IonLi-Ion
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Battery capacity5000 mAh1500 mAh
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Battery removableNon-removable-
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Talk time 3G-8 h
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Standby time 3G-120 h
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Multimedia
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Radio FM-FM radio