Celkon A21 

Released March, 2015
  • Android 4.2.2
  • 3G
  • 4"
  • Dual core 1.2 GHz

Features Key features of the Celkon A21

screen size

Celkon A21
4"
P10 Lite
5.2"

screen resolution

Celkon A21
480 x 320
Galaxy S4
1920 x 1080
P10 Lite
1920 x 1080

memory

Celkon A21
0.25 GB
P10 Lite
4 GB

processor

Celkon A21
Dual core
P8 lite
Octa core
Galaxy S4
Quad core

camera resolution

Celkon A21
3.2 MP
Galaxy S5
16 MP
Galaxy S4
13 MP

Specifications Full list of technical specs

screen

Size 4"
Resolution 480 x 320
PPI 144 ppi

hardware

Clock speed 1.2 GHz
Number of cores Dual core
RAM 0.25 GB
Internal storage 0.51 GB
Supported card formats
  1. SDHC
  2. SD

photo & video

Camera 3.2 MP
Resolution 3.2 MP
Secondary camera 1.3 MP

cellular

Generation 3G
Networks
  1. GSM (0.01 Mb/s)
  2. UMTS (0.38 Mb/s)
  3. EDGE (0.38 Mb/s)
  4. GPRS (0.01 Mb/s)

battery

Talk time (3G) 480 min
Standby time (3G) 7,200 min
Capacity 1,500 mA·h

form factor

Weight 115 g
Thickness 10.8 mm
Size 66.1 x 124.8 x 10.8 mm

sensors

Has an assisted GPS Yes

music

Supports FM radio Yes

software

Operating system Android 4.2.2
Multitasking Yes
App store Android Market
Adobe flash support No
App store size 850,000 apps

connectivity

Acts as a wi-fi hotspot No
Supports NFC No
Bluetooth Bluetooth v4.0
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