Screen size
A40Winner: 4.0"+40%
C5502.4"
Quick verdict
A40 leads the measured specs 9-2.
Measured wins
A40
9
spec wins
Overall winner
Ties
4
equal specs
C550
2
spec wins
Screen size
Technology
A40
GSM
C550
GSM
2G bands
A40
GSM 900 / 1800 - SIM 1 & SIM 2
C550
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
GPRS
A40
Yes
C550
Yes
EDGE
A40
Yes
C550
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
equal specsSD card
equal specsStereo speakers
No
Announced
A40
2014, January. Released 2014, January
C550
2011
Status
A40
Discontinued
C550
Discontinued
Dimensions
A40
126.2 x 64 x 10.8 mm (4.97 x 2.52 x 0.43 in)
C550
112.2 x 48.5 x 14.9 mm (4.42 x 1.91 x 0.59 in)
Weight
A40
126.5 (4.44 oz)
C550
82 g (2.89 oz)
SIM
A40
Dual SIM
C550
Dual SIM (Mini-SIM)
Other
A40
-
C550
Flashlight
Type
A40
TFT
C550
TFT
Size
A40
4.0 inches, 45.5 cm2 (~56.4% screen-to-body ratio)
C550
2.4 inches, 17.8 cm2 (~32.8% screen-to-body ratio)
Resolution
A40
480 x 800 pixels, 5:3 ratio (~233 ppi density)
C550
240 x 320 pixels, 4:3 ratio (~167 ppi density)
OS
A40
Android 4.2.2 (Jelly Bean)
C550
-
CPU
A40
Dual-core 1.3 GHz
C550
-
Card slot
A40
microSDHC (dedicated slot)
C550
microSDHC (dedicated slot)
Internal
A40
4GB 512MB RAM
C550
-
Phonebook
A40
-
C550
500 entries
Call records
A40
-
C550
Yes
Single
A40
5 MP
C550
1.3 MP
Video
A40
Yes
C550
Yes
Single
A40
VGA
C550
-
Video
A40
C550
-
Other
A40
-
C550
No
Loudspeaker
A40
Yes
C550
Yes
3.5mm jack
A40
Yes
C550
Yes
WLAN
A40
Wi-Fi 802.11 b/g/n, hotspot
C550
No
Bluetooth
A40
2.0
C550
2.0
Positioning
A40
GPS
C550
No
NFC
A40
No
C550
-
Radio
A40
FM radio
C550
Stereo FM radio
USB
A40
microUSB 2.0
C550
microUSB
Sensors
A40
Accelerometer, proximity
C550
Messaging
A40
-
C550
SMS, MMS
Games
A40
-
C550
Yes
Java
A40
-
C550
No
Other
A40
-
C550
Audio/video player
Type
A40
Li-Ion 1500 mAh battery
C550
Removable Li-Ion 1550 mAh battery
Stand-by
A40
-
C550
Up to 550 h
Talk time
A40
-
C550
Up to 6 h 40 min
Colors
A40
White, Yellow, Blue
C550
Black/Silver