• Friday, April 17, 2026
KARBONN ALFA A18 specs
4"
WVGA, 800 x 480 pixels
2 MP
1600 x 1200 pixels
512 MB RAM
4 GB Internal
Android
6.0 Marshmallow
1400 mAh
Li-Po
124.5 x 64.5 x 10.6 mm
112 g
SpreadTrum
SC7731G
2017
2017

KARBONN ALFA A18 Phone

GSM 900, 1800
WCDMA 2100
GPRS
EDGE
EV-DO
HSPA Speed
 Up to 21 Mbps
 Up to 5.76 Mbps
DisplayPrimaryIPS LCD 4" 800 x 480 pixels 16M colors
WVGA, 233 ppi
Secondary
CameraPrimary2 MP 1600 x 1200 pixels LED flash
Sensor type: CMOS, Autofocus, Continuous shooting, Digital zoom, Geotagging, Panorama, HDR, Touch focus, Face detection, White balance settings, ISO settings, Exposure compensation, Self-timer, Scene mode
Video1280 x 720 pixels
720p@30fps
Secondary0.3 MP 640 x 480 pixels
480p@30fps
CPUChipsetSpreadTrum SC7731G
CPU Speed1.2 GHz
GPUARM Mali-400 MP2
MemoryRAM512 MB
Internal4 GB
Memory CardMicroSD, Up to 32 GB
OSSystemAndroid 6.0 Marshmallow
GeneralSIMMicro-SIM, Dual-SIM
Dimension124.5 x 64.5 x 10.6 mm
Weight112 g
Released2017
Announced2017
Colorswhite-champagne, gray-gun metal, black-champagne
ConnectivityUSB
 Micro-USB 2.0
WI-FI
 802.11 b/g/n 1
Infrared
NFC
Hotknot
HDMI
GPS
 A-GPS
Bluetooth
 4.0
A2DP
FeaturesSensorsAccelerometer
Waterproof
Dustproof
Shock resistant
SoundHeadphone
 3.5mm
BatteryCapacity1400 mAh Li-Po
Stand byUp to 180 h
Talk timeUp to 8 h