Celkon Q455 vs Microsoft Lumia 640 XL Dual SIM

Celkon Q455
Celkon Q455
Microsoft Lumia 640 XL Dual SIM
Microsoft Lumia 640 XL Dual SIM
Celkon Q455
Microsoft Lumia 640 XL Dual SIM
  • Network
  • 2G network
    GSM 900, 1800
    GSM 850, 900, 1800, 1900
  • 3G network
    HSDPA 2100
    HSDPA 850, 900, 1900, 2100
  • HSDPA speed
    HSDPA
    42.2 Mbps
  • HSUPA speed
    -
    5.76 Mbps
  • GPRS
    Yes
    Yes
  • EDGE
    Yes
    Yes
  • Availability
  • Status
    2014-12
    2015-3
  • Oficially announced
    2014-12
    2015-3
  • Design
  • SIM
    Dual SIM (Mini-SIM)
    Dual SIM (Micro-SIM, dual stand-by)
  • Height
    136.5 mm
    157.9 mm
  • Width
    68 mm
    81.5 mm
  • Thickness
    7.9 mm
    9 mm
  • Weight
    83.7 g
    171 g
  • Colors
    Black, Blue, White
    Black, Glossy white, Matte cyan, Matte white, Orange
  • Display
  • Display type
    IPS LCD capacitive touchscreen
    IPS LCD capacitive touchscreen
  • Physical size
    4.5 inches
    5.7 inches
  • Resolution
    540 x 960 pixels
    720 x 1280 pixels
  • Pixel density
    245 ppi
    259 ppi
  • Display colors
    -
    16777216
  • Hardware
  • CPU
    Quad-core 1.2 GHz
    Quad-core 1.2 GHz ARM Cortex-A7
  • Chipset
    -
    Qualcomm Snapdragon 400
  • GPU
    -
    Adreno 305
  • Memory RAM
    1 GB
    1 GB
  • Internal storage
    16 GB
    8 GB
  • Memory card
    microSD
    microSD
  • Memory card max
    64 GB
    128 GB
  • OS
  • OS
    Android OS, v4.4.2 (KitKat)
    Microsoft Windows Phone 8.1 with Lumia Denim
  • Main camera
  • Main camera
    8 MP
    13 MP
  • Primary camera resolution
    3264 x 2448 pixels
    4128 x 3096 pixels
  • Primary camera video
    video
    1080p@30fps
  • Primary camera optics
    -
    Carl Zeiss optics
  • Primary camera Autofocus
    -
    autofocus
  • Primary camera flash
    -
    LED flash
  • Camera features
    -
    1/3'' sensor size
  • Selfie camera
  • Selfie camera
    1.3 MP
    5 MP
  • Selfie camera video
    -
    1080p
  • Sound
  • 3.5mm jack
    Yes
    Yes
  • Loudspeaker
    Yes
    Yes
  • Notifications
    Vibration, Polyphonic, MP3 ringtones
    Vibration; MP3, WAV ringtones
  • Multimedia
  • Radio FM
    FM radio
    FM radio
  • Connectivity
  • WLAN
    Wi-Fi 802.11b, 802.11g, 802.11n
    Wi-Fi 802.11b, 802.11g, 802.11n
  • WLAN WiFi Hotspot
    Yes
    Yes
  • WLAN DLNA
    -
    Yes
  • USB
    microUSB 2.0
    microUSB 2.0
  • Bluetooth
    Yes
    v4.0
  • Bluetooth A2DP
    -
    Yes
  • GPS
    Yes
    Yes, with A-GPS
  • GLONASS
    -
    Yes
  • GPS Navigator
    -
    Beidou
  • Features
  • Messaging SMS
    SMS(threaded view)
    SMS(threaded view)
  • Messaging MMS
    MMS
    MMS
  • Messaging Email
    Email
    Email
  • Messaging IM
    -
    IM
  • Messaging Push Email
    -
    Push Email
  • Java
    Yes, via Java MIDP emulator
    No
  • Sensors
    -
    Accelerometer, compass, proximity
  • Browser
  • HTML
    Yes
    HTML5
  • Battery
  • Battery type
    Li-Ion
    Li-Ion
  • Battery capacity
    2000 mAh
    3000 mAh
  • Talk time 2G
    -
    31 h 20 min
  • Talk time 3G
    6 h
    23 h 40 min
  • Standby time
    -
    -
  • Standby time 2G
    -
    936 h
  • Standby time 3G
    -
    936 h

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