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Karbonn A4
Compare Karbonn A4 and Microsoft Lumia 640 XL Dual SIM

Karbonn A4 vs Microsoft Lumia 640 XL Dual SIM

Karbonn A4
Karbonn A4
Microsoft Lumia 640 XL Dual SIM
Microsoft Lumia 640 XL Dual SIM
Karbonn A4
Microsoft Lumia 640 XL Dual SIM
  • Network
  • 2G network
    GSM 850, 1900
    GSM 850, 900, 1800, 1900
  • 3G network
    HSDPA 900, 2100
    HSDPA 850, 900, 1900, 2100
  • HSDPA speed
    HSDPA
    42.2 Mbps
  • HSUPA speed
    HSUPA
    5.76 Mbps
  • GPRS
    Yes
    Yes
  • EDGE
    Yes
    Yes
  • Availability
  • Oficially announced
    2013-3
    2015-3
  • Status
    2013-3
    2015-3
  • Design
  • SIM
    Dual SIM (Mini-SIM)
    Dual SIM (Micro-SIM, dual stand-by)
  • Height
    124.8 mm
    157.9 mm
  • Width
    66 mm
    81.5 mm
  • Thickness
    9.5 mm
    9 mm
  • Weight
    75 g
    171 g
  • Colors
    White/Black
    Black, Glossy white, Matte cyan, Matte white, Orange
  • Display
  • Display type
    TFT capacitive touchscreen
    IPS LCD capacitive touchscreen
  • Physical size
    4.0 inches
    5.7 inches
  • Resolution
    320 x 480 pixels
    720 x 1280 pixels
  • Pixel density
    144 ppi
    259 ppi
  • Display colors
    262144
    16777216
  • Hardware
  • CPU
    Quad-core 1.2 GHz ARM Cortex-A7
  • Chipset
    -
    Qualcomm Snapdragon 400
  • GPU
    -
    Adreno 305
  • Internal storage
    256, 512 MB
    8 GB
  • Memory RAM
    -
    1 GB
  • Memory card
    microSD
    microSD
  • Memory card max
    32 GB
    128 GB
  • OS
  • OS
    Android OS, v2.3.6 (Gingerbread)
    Microsoft Windows Phone 8.1 with Lumia Denim
  • Main camera
  • Main camera
    3.15 MP
    13 MP
  • Primary camera resolution
    2048 x 1536 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
  • Secondary camera
    Yes
    -
  • Selfie camera
    5 MP
  • Selfie camera video
    -
    1080p
  • Sound
  • 3.5mm jack
    Yes
    Yes
  • Loudspeaker
    Yes
    Yes
  • Notifications
    Vibration, MP3, WAV ringtones
    Vibration; MP3, WAV ringtones
  • Multimedia
  • Radio FM
    FM radio
    FM radio
  • Connectivity
  • WLAN
    Wi-Fi
    Wi-Fi 802.11b, 802.11g, 802.11n
  • WLAN WiFi Hotspot
    Yes
    Yes
  • WLAN DLNA
    -
    Yes
  • USB
    Yes
    microUSB 2.0
  • Bluetooth
    Yes
    v4.0
  • Bluetooth A2DP
    -
    Yes
  • GPS
    No
    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
    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
    1400 mAh
    3000 mAh
  • Talk time
    4 h 20 min
    -
  • Talk time 2G
    -
    31 h 20 min
  • Talk time 3G
    -
    23 h 40 min
  • Standby time
    250 h
    -
  • Standby time 2G
    -
    936 h
  • Standby time 3G
    -
    936 h

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