Acer Iconia B1-721 vs vivo Y31
Acer Iconia B1-721
vivo Y31
-
Network
-
2G networkGSM 850, 900, 1800, 1900GSM 850, 900, 1800, 1900
-
3G networkHSDPAHSDPA 850, 900, 2100
-
HSDPA speedHSDPA-
-
HSUPA speedHSUPA-
-
HSPA speed-HSPA
-
GPRSYesYes
-
EDGEYesYes
-
Availability
-
Oficially announced2014-12015-9
-
Status2014-12015-10
-
Design
-
SIMYesDual SIM
-
Height199 mm137.2 mm
-
Width122.3 mm68.8 mm
-
Thickness11.4 mm8.4 mm
-
Weight323 g137 g
-
ColorsBlack/RedBlack, White
-
Display
-
Display typeTFT capacitive touchscreenIPS LCD capacitive touchscreen
-
Physical size7.0 inches4.7 inches
-
Resolution600 x 1024 pixels720 x 1280 pixels
-
Pixel density170 ppi312 ppi
-
Display colors-16777216
-
Hardware
-
CPUDual-core 1.3 GHzQuad-core 1.3 GHz
-
ChipsetMediatek MT8312Mediatek MT6580
-
GPUMali-400-
-
Internal storage16 GB8 GB
-
Memory RAM1 GB1 GB
-
Memory cardmicroSDmicroSD
-
Memory card max32 GB128 GB
-
OS
-
OSAndroid OS, v4.2 (Jelly Bean)Android OS, v5.1 (Lollipop)
-
Main camera
-
Main camera8 MP
-
Primary camera resolution640 x 480 pixels3264 x 2448 pixels
-
Primary camera videovideovideo
-
Primary camera flash-LED flash
-
Camera features-Geo-tagging, HDR, touch focus
-
Selfie camera
-
Secondary cameraNo-
-
Selfie camera2 MP
-
Sound
-
3.5mm jackYesYes
-
LoudspeakerYesYes
-
NotificationsN/AVibration; MP3, WAV ringtones
-
Multimedia
-
RadioNo-
-
Radio FM-FM radio
-
Connectivity
-
WLANWi-Fi 802.11b, 802.11g, 802.11nWi-Fi
-
USBmicroUSB 2.0microUSB 2.0
-
BluetoothYesYes
-
GPSYesYes, with A-GPS
-
Features
-
Messaging SMS-SMS(threaded view)
-
Messaging MMS-MMS
-
Messaging EmailEmailEmail
-
Messaging IMIMIM
-
Messaging Push EmailPush Email-
-
Messaging Push Mail-Push Mail
-
JavaYes, via Java MIDP emulatorNo
-
Sensors-Accelerometer, compass, proximity
-
Browser
-
HTMLHTML5HTML5
-
Battery
-
Battery typeLi-PoLi-Po
-
Battery capacity2955 mAh2100 mAh
-
Talk time--
-
Standby time--
