Screen size
equal specsA204.0"
A4024.0"
Quick verdict
A402 leads the measured specs 6-0.
Measured wins
A20
0
spec wins
Ties
10
equal specs
A402
6
spec wins
Overall winner
Screen size
equal specsTechnology
A20
GSM / HSPA
A402
GSM / HSPA
2G bands
A20
GSM 900 / 1800 - SIM 1 & SIM 2
A402
GSM 900 / 1800 - SIM 1 & SIM 2
3G bands
A20
HSDPA 2100
A402
HSDPA 2100
Speed
A20
Yes, 384 kbps
A402
Resolution
equal specsRefresh rate
Peak brightness
Pixel density
equal specsCPU speed
equal specsRAM
Storage
Main camera
equal specsFront camera
Battery
Wired charging
Weight
Thickness
IP rating
Wi‑Fi
Bluetooth
USB
equal specs5G support
equal specsNFC
equal specs3.5mm jack
equal specsSD card
equal specsStereo speakers
Yes, 384 kbps
Announced
A20
2013, August. Released 2013, August
A402
2015, June. Released 2015, June
Status
A20
Discontinued
A402
Discontinued
Dimensions
A20
-
A402
125.5 x 64 x 10.2 mm (4.94 x 2.52 x 0.40 in)
Weight
A20
-
A402
104 g (3.67 oz)
SIM
A20
Dual SIM (Mini-SIM)
A402
Dual SIM
Type
A20
TFT
A402
TFT, 256K colors
Size
A20
4.0 inches, 45.5 cm2
A402
4.0 inches, 45.5 cm2 (~56.7% screen-to-body ratio)
Resolution
A20
480 x 800 pixels, 5:3 ratio (~233 ppi density)
A402
480 x 800 pixels, 5:3 ratio (~233 ppi density)
OS
A20
Android 4.2.0 (Jelly Bean)
A402
Android 4.4.2 (KitKat)
CPU
A20
Dual-core 1.2 GHz
A402
1.2 GHz
Chipset
A20
-
A402
Spreadtrum 7715
GPU
A20
-
A402
Mali-400
Card slot
A20
microSDHC (dedicated slot)
A402
microSDHC
Internal
A20
256MB 512MB RAM
A402
4GB 512MB RAM
Single
A20
3.15 MP
A402
3.15 MP
Video
A20
Yes
A402
Yes
Features
A20
-
A402
LED flash
Single
A20
VGA
A402
1.3 MP
Video
A20
A402
Loudspeaker
A20
Yes
A402
Yes
3.5mm jack
A20
Yes
A402
Yes
WLAN
A20
Wi-Fi 802.11 b/g/n
A402
Wi-Fi 802.11 b/g/n
Bluetooth
A20
Yes
A402
4.0, A2DP
Positioning
A20
No
A402
GPS
NFC
A20
No
A402
No
USB
A20
microUSB 2.0
A402
microUSB 2.0
Radio
A20
-
A402
FM radio
Sensors
A20
Proximity, gyro
A402
Accelerometer
Type
A20
Li-Ion 1500 mAh battery
A402
Li-Ion 2000 mAh battery
Colors
A20
Black
A402
White, Black, Blue, Silver
SAR EU
A20
0.88 W/kg (head) 0.60 W/kg (body)
A402
0.46 W/kg (head) 0.82 W/kg (body)
Price
A20
About 60 EUR
A402
-