Screen size
equal specsA204.0"
A404.0"
Quick verdict
A40 leads the measured specs 4-1.
Measured wins
A20
1
spec wins
Ties
9
equal specs
A40
4
spec wins
Overall winner
Screen size
equal specsTechnology
A20
GSM / HSPA
A40
GSM
2G bands
A20
GSM 900 / 1800 - SIM 1 & SIM 2
A40
GSM 900 / 1800 - SIM 1 & SIM 2
3G bands
A20
HSDPA 2100
A40
-
Speed
A20
Yes, 384 kbps
A40
Resolution
equal specsRefresh rate
Peak brightness
Pixel density
equal specsCPU speed
RAM
Storage
Main camera
Front camera
Battery
equal specsWired charging
Weight
Thickness
IP rating
Wi‑Fi
Bluetooth
USB
equal specs5G support
equal specsNFC
equal specs3.5mm jack
equal specsSD card
equal specsStereo speakers
-
GPRS
A20
-
A40
Yes
EDGE
A20
-
A40
Yes
Announced
A20
2013, August. Released 2013, August
A40
2014, January. Released 2014, January
Status
A20
Discontinued
A40
Discontinued
Dimensions
A20
-
A40
126.2 x 64 x 10.8 mm (4.97 x 2.52 x 0.43 in)
Weight
A20
-
A40
126.5 (4.44 oz)
SIM
A20
Dual SIM (Mini-SIM)
A40
Dual SIM
Type
A20
TFT
A40
TFT
Size
A20
4.0 inches, 45.5 cm2
A40
4.0 inches, 45.5 cm2 (~56.4% screen-to-body ratio)
Resolution
A20
480 x 800 pixels, 5:3 ratio (~233 ppi density)
A40
480 x 800 pixels, 5:3 ratio (~233 ppi density)
OS
A20
Android 4.2.0 (Jelly Bean)
A40
Android 4.2.2 (Jelly Bean)
CPU
A20
Dual-core 1.2 GHz
A40
Dual-core 1.3 GHz
Card slot
A20
microSDHC (dedicated slot)
A40
microSDHC (dedicated slot)
Internal
A20
256MB 512MB RAM
A40
4GB 512MB RAM
Single
A20
3.15 MP
A40
5 MP
Video
A20
Yes
A40
Yes
Single
A20
VGA
A40
VGA
Video
A20
A40
Loudspeaker
A20
Yes
A40
Yes
3.5mm jack
A20
Yes
A40
Yes
WLAN
A20
Wi-Fi 802.11 b/g/n
A40
Wi-Fi 802.11 b/g/n, hotspot
Bluetooth
A20
Yes
A40
2.0
Positioning
A20
No
A40
GPS
NFC
A20
No
A40
No
USB
A20
microUSB 2.0
A40
microUSB 2.0
Radio
A20
-
A40
FM radio
Sensors
A20
Proximity, gyro
A40
Accelerometer, proximity
Type
A20
Li-Ion 1500 mAh battery
A40
Li-Ion 1500 mAh battery
Colors
A20
Black
A40
White, Yellow, Blue
SAR EU
A20
0.88 W/kg (head) 0.60 W/kg (body)
A40
-
Price
A20
About 60 EUR
A40
-