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Panasonic T21
Compare Panasonic T21 and Yezz Billy 4

Panasonic T21 vs Yezz Billy 4

Panasonic T21
Panasonic T21
Yezz Billy 4
Yezz Billy 4
Panasonic T21
Yezz Billy 4
  • Network
  • 2G network
    GSM 850, 900, 1800, 1900
    GSM 850, 900, 1800, 1900
  • 3G network
    HSDPA 900, 2100
    HSDPA 850, 1900
  • HSDPA speed
    HSDPA
    42.2 Mbps
  • HSUPA speed
    HSUPA
    5.76 Mbps
  • GPRS
    Yes
    Yes
  • EDGE
    Yes
    Yes
  • Availability
  • Oficially announced
    2013
    2014-6
  • Status
    2013
    2014-10
  • Design
  • SIM
    Dual SIM
    Dual SIM (Micro-SIM)
  • Height
    132 mm
    122.5 mm
  • Width
    66 mm
    64.4 mm
  • Thickness
    9.8 mm
    9.9 mm
  • Weight
    140 g
    109 g
  • Colors
    Black, White
    Black, Blue, Champing Gold, Gun Metal, Red, White, Yellow
  • Display
  • Display type
    IPS LCD capacitive touchscreen
    TFT capacitive touchscreen
  • Physical size
    4.5 inches
    4.0 inches
  • Resolution
    720 x 1280 pixels
    480 x 800 pixels
  • Pixel density
    326 ppi
    233 ppi
  • Display colors
    16777216
    16777216
  • Hardware
  • CPU
    Dual-core 1.2 GHz
    Quad-core 1.2 GHz ARM Cortex-A7
  • Chipset
    -
    Qualcomm MSM8212 Snapdragon 200
  • GPU
    -
    Adreno 302
  • Memory RAM
    1 GB
    512 MB
  • Internal storage
    4 GB
    4 GB
  • Memory card
    microSD
    microSD
  • Memory card max
    32 GB
    128 GB
  • OS
  • OS
    Android OS, v4.1 (Jelly Bean)
    Microsoft Windows Phone 8.1
  • Main camera
  • Main camera
    8 MP
    8 MP
  • Primary camera resolution
    3264 x 2448 pixels
    3264 x 2448 pixels
  • Primary camera video
    1080p@30fps
    720p@30fps
  • Primary camera Autofocus
    autofocus
    autofocus
  • Primary camera flash
    LED flash
    LED flash
  • Camera features
    -
    Geo-tagging, touch focus
  • Selfie camera
  • Selfie camera
    2 MP
    1.3 MP
  • Sound
  • 3.5mm jack
    Yes
    Yes
  • Loudspeaker
    Yes
    Yes
  • Notifications
    Vibration; MP3, WAV ringtones
    Vibration; MP3, WAV ringtones
  • Multimedia
  • Radio FM
    FM radio
    Stereo FM radio
  • Connectivity
  • WLAN
    Wi-Fi 802.11b, 802.11g, 802.11n
    Wi-Fi 802.11a, 802.11b, 802.11g, 802.11n
  • WLAN WiFi Hotspot
    Yes
    Yes
  • USB
    microUSB 2.0
    microUSB 2.0
  • Bluetooth
    v2.1
    v4.0
  • Bluetooth A2DP
    Yes
    Yes
  • GPS
    Yes, with A-GPS
    Yes, with A-GPS
  • GLONASS
    -
    Yes
  • 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 Mail
    Push Email
  • Java
    Yes, via Java MIDP emulator
    No
  • Sensors
    -
    Accelerometer, proximity
  • Browser
  • HTML
    HTML5
    HTML5
  • Battery
  • Battery type
    Li-Ion
    Li-Ion
  • Battery capacity
    1700 mAh
    1300 mAh
  • Talk time
    -
    -
  • Talk time 2G
    -
    7 h
  • Talk time 3G
    -
    4 h 30 min
  • Standby time
    -
    -
  • Standby time 2G
    -
    350 h
  • Standby time 3G
    -
    300 h

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