Celkon A21

Created Released 2014, 01 January
Details 115.3 gram , 10.8 mm thickness
Version 4.2.2 (Jelly Bean), Android OS
Memory microSDHC

Mediatek MT6582 (28 nm)

3.1 MP

Selfie

1.3 MP

4.0"

320x480 pixels

1500 mAh

Li-ion
Images 16:9,   1.91:1,   1:1
Brand Celkon
Model A21
Announced 2014, 01January
Status Discontinued , 2014, 01 January

Design and build

Height 124.8 mm( 4.9 inches)
Width 66.1 mm(2.6 inches)
Thickness 10.8mm(0.4 inches)
Weight 115.3 gram (0.1 kg)
Colors Black,   Blue,   Red
Rear material Plastic
Frame material Glass
Display TFT, 0Hz
4 inch, 47.6cm2(~57.8 screen-to-body ratio)
320 x 480 pixels3:2 (~144 ppi density)
SIM Dual SIM (Mini-SIM) [25 x 15 x 0.8 mm]
Sensor accelerometer,

Performance

OS Android 4.2.2 (Jelly Bean) OS
Battery Li-ion 1500 mAh, removable
Charging speedNone W
There is not a wireless charger
Memory
Card slot microSDHC 2 GB <= 32 GB
CPU 8x1.2 GHz Cortex-A7
Chipset Mediatek MT6582 (28 nm) Mediatek
GPU Mali-400MP2 000000
Audio 3.5mm jack
Loudspeaker

Cameras

Main camera 3.1MP, f/None (No)
Yes
Selfie camera 1.3MP, f/None (standard)

Connectivity

Network GSM 2G / HSPA 3G No / LTE 4G No / 5G 5G No
2G(GSM) E-GSM-900 / P-GSM-900 / R-GSM-900 / T-GSM-900
Wi-Fi 802.11b [1,11] Mbit/s, 2.4 GHz
802.11g [6,54] Mbit/s, 2.4 GHz
Wi‑Fi 4 (802.11n) [72,600] Mbit/s, [2.4;5] GHz
Bluetooth Bluetooth 4.0
GPS No
NFS No
Infrared No
Radio Yes
USB USB microUSB
Celkon 140 devices
Celkon
140 devices