Celkon Q450 vs vivo Y28
Celkon Q450
vivo Y28
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Network
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2G networkGSM 900, 1800GSM 850, 900, 1800, 1900
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3G networkHSDPAHSDPA 850, 900, 2100
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HSDPA speed-21.1 Mbps
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HSUPA speed-5.76 Mbps
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HSPA speedHSPA-
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2015-42014-12
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Status2015-42014-12
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Design
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SIMDual SIMMicro-SIM
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Height135 mm137.4 mm
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Width67.7 mm68.6 mm
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Thickness9.7 mm9.8 mm
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Weight147 g156 g
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ColorsGold, WhiteWhite
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Display
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Display typeIPS LCD capacitive touchscreenIPS LCD capacitive touchscreen
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Physical size4.5 inches4.7 inches
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Resolution480 x 800 pixels540 x 960 pixels
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Pixel density207 ppi216 ppi
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Display colors-16777216
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Hardware
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CPUQuad-core 1.2 GHzQuad-core 1.3 GHz
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ChipsetSpreadtrum 7731Mediatek MT6582
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GPUMali-400-
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Memory RAM512 MB1 GB
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Internal storage4 GB8 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, v4.4.2 (KitKat)Android OS, v4.2.2 (Jelly Bean)
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Main camera
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Main camera5 MP8 MP
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Primary camera resolution2592 x 1944 pixels3264 x 2448 pixels
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Primary camera videovideo1080p@30fps
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Primary camera Autofocus-autofocus
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Primary camera flashLED flashLED flash
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Camera featuresYesGeo-tagging, face detection, touch focus
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Selfie camera
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Selfie camera2 MP5 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; 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-Fi 802.11b, 802.11g, 802.11nWi-Fi 802.11b, 802.11g, 802.11n
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WLAN WiFi Hotspot-Yes
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USBYesmicroUSB 2.0
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BluetoothYesv4.0
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Bluetooth A2DP-Yes
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Bluetooth EDR-Yes
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Infrared-Yes
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GPSYesYes, with A-GPS
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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 IM-IM
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Messaging Push Email-Push Mail
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JavaNoYes, via Java MIDP emulator
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SensorsAccelerometer, proximityAccelerometer, compass, proximity
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Browser
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HTMLYesHTML5
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Battery
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Battery typeLi-IonLi-Po
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Battery capacity1800 mAh2100 mAh
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Talk time--
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Talk time 2G-14 h
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Talk time 3G-13 h
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Standby time--
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Standby time 2G-430 h
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Standby time 3G-430 h