Celkon Q500 Millennium Ultra vs Micromax Bolt A51
Celkon Q500 Millennium Ultra
Micromax Bolt A51
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Network
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2G networkGSM 900, 1800GSM 900, 1800
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3G networkHSDPA 2100HSDPA 2100
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HSDPA speedHSDPAHSDPA
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HSUPA speed-HSUPA
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GPRSYesYes
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EDGEYesYes
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Availability
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Status2014-122013-4
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Oficially announced2014-122013-4
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Design
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SIMDual SIMDual SIM
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Height145.6 mm118.5 mm
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Width71.8 mm62.5 mm
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Thickness8 mm12.8 mm
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Weight149 g118 g
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ColorsWhiteBlack/Silver
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Display
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Display typeIPS LCD capacitive touchscreenTFT touchscreen
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Physical size5.0 inches3.5 inches
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Resolution720 x 1280 pixels320 x 480 pixels
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Pixel density294 ppi165 ppi
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Hardware
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CPUQuad-core 1.2 GHz832 MHz
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ChipsetBroadcom BCM23550-
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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 max32 GB32 GB
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OS
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OSAndroid OS, v4.4.2 (KitKat)Android OS, v2.3.7 (Gingerbread)
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Main camera
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Main camera8 MP2 MP
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Primary camera resolution3264 x 2448 pixels1600 x 1200 pixels
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Primary camera videovideovideo
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Primary camera Autofocusautofocus-
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Primary camera flashLED flashLED flash
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Selfie camera
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Secondary camera-VGA camera
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Selfie camera2 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, Polyphonic, MP3 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 HotspotYesYes
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USBmicroUSB 2.0Yes
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Bluetoothv4.0v3.0
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GPSYesNo
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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 Email
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JavaYes, via Java MIDP emulatorYes, via Java MIDP emulator
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Browser
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HTMLYesYes
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Battery
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Battery typeLi-IonLi-Ion
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Battery capacity2500 mAh1500 mAh
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Talk time-4 h 30 min
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Talk time 3G5 h-
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Standby time-140 h
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Standby time 3G200 h-
