Screen size
A40Winner: 4.0"+40%
C7702.4"
Quick verdict
A40 leads the measured specs 9-1.
Measured wins
A40
9
spec wins
Overall winner
Ties
5
equal specs
C770
1
spec wins
Screen size
Technology
A40
GSM
C770
GSM
2G bands
A40
GSM 900 / 1800 - SIM 1 & SIM 2
C770
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
GPRS
A40
Yes
C770
Yes
EDGE
A40
Yes
C770
Resolution
Refresh rate
Peak brightness
Pixel density
CPU speed
RAM
Storage
Main camera
Front camera
Battery
equal specsWired 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
C770
2011
Status
A40
Discontinued
C770
Discontinued
Dimensions
A40
126.2 x 64 x 10.8 mm (4.97 x 2.52 x 0.43 in)
C770
114 x 50 x 15.3 mm (4.49 x 1.97 x 0.60 in)
Weight
A40
126.5 (4.44 oz)
C770
102 g (3.60 oz)
SIM
A40
Dual SIM
C770
Dual SIM (Mini-SIM)
Other
A40
-
C770
Flashlight
Type
A40
TFT
C770
TFT
Size
A40
4.0 inches, 45.5 cm2 (~56.4% screen-to-body ratio)
C770
2.4 inches, 17.8 cm2 (~31.3% screen-to-body ratio)
Resolution
A40
480 x 800 pixels, 5:3 ratio (~233 ppi density)
C770
240 x 320 pixels, 4:3 ratio (~167 ppi density)
OS
A40
Android 4.2.2 (Jelly Bean)
C770
-
CPU
A40
Dual-core 1.3 GHz
C770
-
Card slot
A40
microSDHC (dedicated slot)
C770
microSDHC (dedicated slot)
Internal
A40
4GB 512MB RAM
C770
-
Phonebook
A40
-
C770
1000 entries
Call records
A40
-
C770
Yes
Single
A40
5 MP
C770
1.3 MP
Video
A40
Yes
C770
Yes
Single
A40
VGA
C770
-
Video
A40
C770
-
Other
A40
-
C770
No
Loudspeaker
A40
Yes
C770
Yes
3.5mm jack
A40
Yes
C770
Yes
WLAN
A40
Wi-Fi 802.11 b/g/n, hotspot
C770
No
Bluetooth
A40
2.0
C770
2.0
Positioning
A40
GPS
C770
No
NFC
A40
No
C770
-
Radio
A40
FM radio
C770
Stereo FM radio
USB
A40
microUSB 2.0
C770
microUSB
Sensors
A40
Accelerometer, proximity
C770
Messaging
A40
-
C770
SMS, MMS
Games
A40
-
C770
Yes
Java
A40
-
C770
No
Other
A40
-
C770
Audio/video player
Type
A40
Li-Ion 1500 mAh battery
C770
Removable Li-Ion 1500 mAh battery
Stand-by
A40
-
C770
Up to 550 h
Talk time
A40
-
C770
Up to 6 h 40 min
Colors
A40
White, Yellow, Blue
C770
Black/Red, Black/Silver