Screen size
C21A1.8"
GO 50Winner: 2.0"+10%
Quick verdict
GO 50 leads the measured specs 8-0.
Measured wins
C21A
0
spec wins
Ties
3
equal specs
GO 50
8
spec wins
Overall winner
Screen size
Technology
C21A
GSM
GO 50
GSM
2G bands
C21A
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 - CM21A003
GO 50
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
GPRS
C21A
Up to 48 kbps
GO 50
Up to 48 kbps
EDGE
C21A
No
GO 50
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
USB
5G support
equal specsNFC
equal specs3.5mm jack
SD card
equal specsStereo speakers
No
Announced
C21A
2013, March. Released 2013, April
GO 50
2013, March. Released 2013, June
Status
C21A
Discontinued
GO 50
Discontinued
Dimensions
C21A
106 x 45 x 14.5 mm (4.17 x 1.77 x 0.57 in)
GO 50
108 x 46 x 13.7 mm (4.25 x 1.81 x 0.54 in)
Weight
C21A
73 g without battery (2.57 oz)
GO 50
57 g without battery (2.01 oz)
SIM
C21A
Dual SIM (Mini-SIM)
GO 50
Dual SIM (Mini-SIM)
Other
C21A
-
GO 50
Flashlight
Type
C21A
TFT, 256K colors
GO 50
TFT, 65K colors
Size
C21A
1.8 inches, 10.2 cm2 (~21.4% screen-to-body ratio)
GO 50
2.0 inches, 12.6 cm2 (~25.3% screen-to-body ratio)
Resolution
C21A
128 x 160 pixels (~114 ppi density)
GO 50
176 x 220 pixels (~141 ppi density)
Card slot
C21A
microSDHC
GO 50
microSDHC (dedicated slot)
Phonebook
C21A
Yes
GO 50
Yes
Call records
C21A
Yes
GO 50
Yes
Internal
C21A
32Mb 32Mb RAM
GO 50
32Mb 32Mb RAM
Single
C21A
VGA
GO 50
VGA
Video
C21A
No
GO 50
Yes
Other
C21A
No
GO 50
No
Loudspeaker
C21A
Yes
GO 50
Yes
3.5mm jack
C21A
No
GO 50
Yes
WLAN
C21A
No
GO 50
No
Bluetooth
C21A
2.0
GO 50
2.1
Positioning
C21A
No
GO 50
No
NFC
C21A
No
GO 50
No
Radio
C21A
Stereo FM radio
GO 50
Stereo FM radio
USB
C21A
microUSB
GO 50
microUSB
Sensors
C21A
GO 50
Messaging
C21A
SMS, IM
GO 50
SMS
Games
C21A
No
GO 50
Yes
Java
C21A
No
GO 50
No
Other
C21A
Video Player Music Player Organizer Whatsapp
GO 50
Whatsapp messenger Video/music player Organizer
Type
C21A
Li-Ion 600 mAh, removable
GO 50
Li-Ion 800 mAh, removable
Stand-by
C21A
Up to 200 h
GO 50
Up to 200 h
Talk time
C21A
Up to 4 h
GO 50
Up to 6 h
Colors
C21A
Black, White, Blue, Green, Purple, Red, Fuchsia
GO 50
Blue, Black, White, Red, Silver, Dark Grey