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Celkon A21
network
- Technology GSM / HSPA
- 2G bands GSM 900 / 1800 - SIM 1 & SIM 2
- 3G bands HSDPA 2100
- Speed HSPA
launch
- Announced 2014
- Status Available. Released 2014
body
- Dimensions 124.8 x 66.1 x 10.8 mm (4.91 x 2.60 x 0.43 in)
- Weight 115.3 g (4.06 oz)
- SIM Dual SIM (Dual stand-by)
display
- Type Capacitive touchscreen
- Size 4.0 inches, 47.6 cm2 (~57.8% screen-to-body ratio)
- Resolution 320 x 480 pixels, 3:2 ratio (~144 ppi density)
platform
- OS Android 4.2.2 (Jelly Bean)
- Chipset Mediatek MT6582 (28 nm)
- CPU Quad-core 1.3 GHz Cortex-A7
- GPU Mali-400MP2
memory
- Card slot microSDHC
- Internal 512MB 256MB RAM
main camera
- Modules 3.15 MP
- Video Yes
selfie camera
- Modules 1.3 MP
- Video
sound
- Loudspeaker Yes
- 3.5mm jack Yes
comms
- WLAN Wi-Fi 802.11 b/g/n
- Bluetooth 4.0, A2DP
- GPS No
- USB microUSB
features
- Sensors Accelerometer
battery
- Li-Ion 1500 mAh battery
misc
- Colors Black, Blue, Red