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Acer
Acer Iconia B1-721
Compare Acer Iconia B1-721 and Oppo R9

Acer Iconia B1-721 vs Oppo R9

Acer Iconia B1-721
Acer Iconia B1-721
Oppo R9
Oppo R9
Acer Iconia B1-721
Oppo R9
  • Network
  • 2G network
    GSM 850, 900, 1800, 1900
    GSM 850, 900, 1800, 1900; CDMA 800
  • 3G network
    HSDPA
    HSDPA 850, 900, 1900, 2100; CDMA2000 1xEV-DO and TD-SCDMA
  • 4G network
    -
    LTE frequency band 1(2100), 3(1800), 5(850), 38(2600), 39(1900), 40(2300), 41(2500)
  • HSDPA speed
    HSDPA
    -
  • HSUPA speed
    HSUPA
    -
  • HSPA speed
    -
    HSPA
  • LTE speed
    -
    LTE
  • GPRS
    Yes
    Yes
  • EDGE
    Yes
    Yes
  • Availability
  • Oficially announced
    2014-1
    2016-3
  • Status
    2014-1
    2016-4
  • Design
  • SIM
    Yes
    Dual SIM (Nano-SIM, dual stand-by)
  • Height
    199 mm
    151.8 mm
  • Width
    122.3 mm
    74.3 mm
  • Thickness
    11.4 mm
    6.6 mm
  • Weight
    323 g
    145 g
  • Colors
    Black/Red
    Gold
  • Display
  • Display type
    TFT capacitive touchscreen
    Capacitive touchscreen
  • Physical size
    7.0 inches
    5.5 inches
  • Resolution
    600 x 1024 pixels
    1080 x 1920 pixels
  • Pixel density
    170 ppi
    401 ppi
  • Display colors
    -
    16777216
  • Protection
    -
    Corning Gorilla Glass 4
  • Multitouch
    -
    Yes
  • Hardware
  • CPU
    Dual-core 1.3 GHz
    Octa-core 2.0 GHz ARM Cortex-A53
  • Chipset
    Mediatek MT8312
    Mediatek MT6755 Helio P10
  • GPU
    Mali-400
    Mali-T860MP2
  • Memory RAM
    1 GB
    4 GB
  • Internal storage
    16 GB
    64 GB
  • Memory card
    microSD
    microSD
  • Memory card max
    32 GB
    128 GB
  • OS
  • OS
    Android OS, v4.2 (Jelly Bean)
    Android OS, v5.1 (Lollipop)
  • Main camera
  • Main camera
    13 MP, f/2.2
  • Primary camera resolution
    640 x 480 pixels
    -
  • Primary camera video
    video
    1080p@30fps
  • Primary camera Autofocus
    -
    phase detection autofocus
  • Primary camera flash
    -
    LED flash
  • Camera features
    -
    Geo-tagging, HDR, face detection, panorama, touch focus
  • Selfie camera
  • Secondary camera
    No
    -
  • Selfie camera
    16 MP, f/2.0
  • Sound
  • 3.5mm jack
    Yes
    Yes
  • Loudspeaker
    Yes
    Yes
  • Notifications
    N/A
    Vibration; MP3, WAV ringtones
  • Multimedia
  • Radio
    No
    No
  • Connectivity
  • WLAN
    Wi-Fi 802.11b, 802.11g, 802.11n
    Wi-Fi 802.11a, 802.11b, 802.11g, 802.11n
  • WLAN WiFi Hotspot
    -
    Yes
  • WLAN WiFi Direct
    -
    Yes
  • USB
    microUSB 2.0
    microUSB 2.0
  • USB host
    -
    Yes
  • Bluetooth
    Yes
    v4.0
  • GPS
    Yes
    Yes, with A-GPS
  • Features
  • Messaging SMS
    -
    SMS(threaded view)
  • Messaging MMS
    -
    MMS
  • Messaging Email
    Email
    Email
  • Messaging IM
    IM
    -
  • Messaging Push Email
    Push Email
    Push Email
  • Java
    Yes, via Java MIDP emulator
    No
  • Sensors
    -
    Fingerprint, accelerometer, compass, gyro, proximity
  • Browser
  • HTML
    HTML5
    HTML5
  • Battery
  • Battery type
    Li-Po
    Li-Po
  • Battery capacity
    2955 mAh
    2850 mAh
  • Battery removable
    -
    Non-removable
  • Talk time
    -
    -
  • Standby time
    -
    -

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