Screen size
A40Winner: 4.0"+40%
C770 Dj2.4"
Quick verdict
A40 leads the measured specs 10-0.
Measured wins
A40
10
spec wins
Overall winner
Ties
4
equal specs
C770 Dj
0
spec wins
Screen size
Technology
A40
GSM
C770 Dj
GSM
2G bands
A40
GSM 900 / 1800 - SIM 1 & SIM 2
C770 Dj
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
GPRS
A40
Yes
C770 Dj
Yes
EDGE
A40
Yes
C770 Dj
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
3G bands
A40
-
C770 Dj
Yes
Announced
A40
2014, January. Released 2014, January
C770 Dj
2012
Status
A40
Discontinued
C770 Dj
Discontinued
Dimensions
A40
126.2 x 64 x 10.8 mm (4.97 x 2.52 x 0.43 in)
C770 Dj
118 x 52 x 12.9 mm (4.65 x 2.05 x 0.51 in)
Weight
A40
126.5 (4.44 oz)
C770 Dj
-
SIM
A40
Dual SIM
C770 Dj
Dual SIM (Mini-SIM)
Other
A40
-
C770 Dj
Flashlight
Type
A40
TFT
C770 Dj
TFT
Size
A40
4.0 inches, 45.5 cm2 (~56.4% screen-to-body ratio)
C770 Dj
2.4 inches, 17.8 cm2 (~29.1% screen-to-body ratio)
Resolution
A40
480 x 800 pixels, 5:3 ratio (~233 ppi density)
C770 Dj
240 x 320 pixels, 4:3 ratio (~167 ppi density)
OS
A40
Android 4.2.2 (Jelly Bean)
C770 Dj
-
CPU
A40
Dual-core 1.3 GHz
C770 Dj
-
Card slot
A40
microSDHC (dedicated slot)
C770 Dj
microSDHC (dedicated slot)
Internal
A40
4GB 512MB RAM
C770 Dj
-
Phonebook
A40
-
C770 Dj
Yes
Call records
A40
-
C770 Dj
Yes
Single
A40
5 MP
C770 Dj
2 MP
Video
A40
Yes
C770 Dj
Yes
Single
A40
VGA
C770 Dj
-
Video
A40
C770 Dj
-
Other
A40
-
C770 Dj
No
Loudspeaker
A40
Yes
C770 Dj
Yes
3.5mm jack
A40
Yes
C770 Dj
Yes
WLAN
A40
Wi-Fi 802.11 b/g/n, hotspot
C770 Dj
No
Bluetooth
A40
2.0
C770 Dj
2.0
Positioning
A40
GPS
C770 Dj
No
NFC
A40
No
C770 Dj
-
Radio
A40
FM radio
C770 Dj
Stereo FM radio
USB
A40
microUSB 2.0
C770 Dj
microUSB
Sensors
A40
Accelerometer, proximity
C770 Dj
Messaging
A40
-
C770 Dj
SMS, MMS
Games
A40
-
C770 Dj
Yes
Java
A40
-
C770 Dj
No
Other
A40
-
C770 Dj
Audio/video player Auto call record
Type
A40
Li-Ion 1500 mAh battery
C770 Dj
Removable Li-Ion 1350 mAh battery
Stand-by
A40
-
C770 Dj
Up to 350 h
Talk time
A40
-
C770 Dj
Up to 9 h 10 min
Colors
A40
White, Yellow, Blue
C770 Dj
Black/Red