Screen size
A40Winner: 4.0"+40%
C902.4"
Quick verdict
A40 leads the measured specs 11-1.
Measured wins
A40
11
spec wins
Overall winner
Ties
3
equal specs
C90
1
spec wins
Screen size
Technology
A40
GSM
C90
GSM
2G bands
A40
GSM 900 / 1800 - SIM 1 & SIM 2
C90
GSM 900 / 1800 - SIM 1 & SIM 2
GPRS
A40
Yes
C90
Yes
EDGE
A40
Yes
C90
No
Resolution
Refresh rate
Peak brightness
Pixel density
CPU speed
RAM
Storage
Main camera
Front camera
Battery
Wired charging
Weight
Thickness
IP rating
Wi‑Fi
Bluetooth
equal specsUSB
5G support
equal specsNFC
3.5mm jack
SD card
equal specsStereo speakers
Announced
A40
2014, January. Released 2014, January
C90
2012
Status
A40
Discontinued
C90
Discontinued
Dimensions
A40
126.2 x 64 x 10.8 mm (4.97 x 2.52 x 0.43 in)
C90
101 x 52 x 12.3 mm (3.98 x 2.05 x 0.48 in)
Weight
A40
126.5 (4.44 oz)
C90
86 g (3.03 oz)
SIM
A40
Dual SIM
C90
Dual SIM (Mini-SIM)
Type
A40
TFT
C90
TFT
Size
A40
4.0 inches, 45.5 cm2 (~56.4% screen-to-body ratio)
C90
2.4 inches, 17.8 cm2 (~34.0% screen-to-body ratio)
Resolution
A40
480 x 800 pixels, 5:3 ratio (~233 ppi density)
C90
240 x 320 pixels, 4:3 ratio (~167 ppi density)
OS
A40
Android 4.2.2 (Jelly Bean)
C90
-
CPU
A40
Dual-core 1.3 GHz
C90
-
Card slot
A40
microSDHC (dedicated slot)
C90
microSDHC (dedicated slot)
Internal
A40
4GB 512MB RAM
C90
-
Phonebook
A40
-
C90
500 entries
Call records
A40
-
C90
20 dialed, 20 received, 20 missed calls
Single
A40
5 MP
C90
1.3 MP
Video
A40
Yes
C90
Yes
Single
A40
VGA
C90
-
Video
A40
C90
-
Other
A40
-
C90
No
Loudspeaker
A40
Yes
C90
Yes
3.5mm jack
A40
Yes
C90
-
WLAN
A40
Wi-Fi 802.11 b/g/n, hotspot
C90
No
Bluetooth
A40
2.0
C90
2.0
Positioning
A40
GPS
C90
No
NFC
A40
No
C90
-
Radio
A40
FM radio
C90
Stereo FM radio
USB
A40
microUSB 2.0
C90
microUSB
Sensors
A40
Accelerometer, proximity
C90
Messaging
A40
-
C90
SMS, MMS
Games
A40
-
C90
Yes
Java
A40
-
C90
No
Other
A40
-
C90
Audio/video player
Type
A40
Li-Ion 1500 mAh battery
C90
Removable Li-Ion 1000 mAh battery
Stand-by
A40
-
C90
Up to 300 h
Talk time
A40
-
C90
Up to 8 h 20 min
Colors
A40
White, Yellow, Blue
C90
Black/Red, White/Red
Price
A40
-
C90
About 30 EUR