Celkon A21 vs vivo V3Max
Celkon A21
vivo V3Max
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Network
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2G networkGSM 900, 1800GSM 850, 900, 1800, 1900
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3G networkHSDPA 2100HSDPA 850, 900, 2100
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4G network-LTE frequency band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 40(2300)
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HSDPA speedHSDPA-
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LTE speed-LTE, Cat4, 150 Mbps download, 50 Mbps upload
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2014-122016-4
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Status2014-122016-4
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Design
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SIMDual SIM (dual stand-by)Dual SIM
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Height124.8 mm153.9 mm
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Width66.1 mm77.1 mm
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Thickness10.8 mm7.6 mm
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Weight115.3 g168 g
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ColorsBlack, Blue, RedGold
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Display
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Display typeCapacitive touchscreenIPS LCD capacitive touchscreen
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Physical size4.0 inches5.5 inches
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Resolution320 x 480 pixels1080 x 1920 pixels
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Pixel density144 ppi401 ppi
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Display colors-16777216
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Multitouch-Yes
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Hardware
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CPUDual-core 1.2 GHzQuad-core 1.8 GHz ARM Cortex-A72
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CPU(second)quad-core 1.4 GHz ARM Cortex-A53
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ChipsetMediatek MT6582Qualcomm MSM8976 Snapdragon 652
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GPU-Adreno 510
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Memory ROM512 MB-
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Memory RAM256 MB4 GB
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Internal storage-32 GB
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Memory cardmicroSDmicroSD
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Memory card max32 GB128 GB
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OS
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OSAndroid OS, v4.2.2 (Jelly Bean)Android OS, v5.1 (Lollipop)
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Main camera
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Main camera3.15 MP13 MP
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Primary camera videovideovideo
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Primary camera Autofocus-phase detection autofocus
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Primary camera flash-LED flash
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Camera features-Geo-tagging, HDR, face detection, panorama, touch focus
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Selfie camera
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Selfie camera1.3 MP8 MP
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Sound
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3.5mm jackYesYes
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LoudspeakerYesYes
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NotificationsVibration, Polyphonic, MP3 ringtonesVibration; MP3, WAV ringtones
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Multimedia
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Radio FMFM radioFM radio
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Connectivity
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WLANWi-FiWi-Fi
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USBYesmicroUSB 2.0
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USB host-Yes
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Bluetoothv4.0v4.1
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Bluetooth A2DP-Yes
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bluetooth LE-Yes
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GPSNoYes, with A-GPS
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GLONASS-Yes
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BDS-Yes
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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 Push Email-Push Email
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JavaYes, via Java MIDP emulatorNo
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Sensors-Fingerprint, accelerometer, gyro, proximity
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Browser
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HTMLYesHTML5
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Battery
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Battery typeLi-IonLi-Ion
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Battery capacity1500 mAh3000 mAh
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Battery removable-Non-removable
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Talk time--
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Talk time 3G8 h-
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Standby time--
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Standby time 3G120 h-