Screen size
C7207.0"
C820Winner: 8.0"+13%
Quick verdict
C820 leads the measured specs 6-0.
Measured wins
C720
0
spec wins
Ties
9
equal specs
C820
6
spec wins
Overall winner
Screen size
Technology
C720
GSM / HSPA
C820
GSM / HSPA
2G bands
C720
GSM 900 / 1800 - SIM 1 & SIM 2
C820
GSM 900 / 1800 - SIM 1 & SIM 2
3G bands
C720
HSDPA 2100
C820
HSDPA 2100
Speed
C720
HSPA
C820
Resolution
Refresh rate
Peak brightness
Pixel density
CPU speed
equal specsRAM
Storage
equal specsMain camera
equal specsFront camera
equal specsBattery
Wired charging
Weight
Thickness
IP rating
Wi‑Fi
Bluetooth
USB
equal specs5G support
equal specsNFC
equal specs3.5mm jack
equal specsSD card
equal specsStereo speakers
HSPA
Announced
C720
2014
C820
2014
Status
C720
Discontinued
C820
Discontinued
Dimensions
C720
194.6 x 124 x 12.1 mm (7.66 x 4.88 x 0.48 in)
C820
210 x 131 x 10.5 mm (8.27 x 5.16 x 0.41 in)
Weight
C720
-
C820
-
SIM
C720
Micro-SIM
C820
Dual SIM
Type
C720
TFT
C820
TFT
Size
C720
7.0 inches, 136.3 cm2 (~56.5% screen-to-body ratio)
C820
8.0 inches, 185.6 cm2 (~67.5% screen-to-body ratio)
Resolution
C720
458 x 800 pixels, 16:9 ratio (~132 ppi density)
C820
800 x 1280 pixels, 16:10 ratio (~189 ppi density)
OS
C720
Android 4.2.2 (Jelly Bean)
C820
Android 4.2.2 (Jelly Bean)
CPU
C720
Dual-core 1.0 GHz
C820
Dual-core 1.0 GHz
Card slot
C720
microSDHC (dedicated slot)
C820
microSDHC
Internal
C720
4GB 512MB RAM
C820
4GB 512MB RAM
Single
C720
3.15 MP
C820
3.15 MP
Video
C720
Yes
C820
Yes
Single
C720
1.3 MP
C820
1.3 MP
Video
C720
C820
Loudspeaker
C720
Yes
C820
Yes
3.5mm jack
C720
Yes
C820
Yes
WLAN
C720
Wi-Fi 802.11 b/g/n, hotspot
C820
Wi-Fi 802.11 b/g/n, hotspot
Bluetooth
C720
2.0
C820
2.1
Positioning
C720
GPS
C820
GPS
NFC
C720
No
C820
No
Radio
C720
FM radio
C820
FM radio
USB
C720
microUSB 2.0
C820
microUSB 2.0
Sensors
C720
Accelerometer
C820
Accelerometer
Type
C720
Li-Ion 3000 mAh, non-removable
C820
Li-Ion 4000 mAh, non-removable
Stand-by
C720
Up to 300 h
C820
Up to 500 h
Talk time
C720
Up to 10 h
C820
Up to 14 h
Colors
C720
White
C820
Black, Silver
SAR EU
C720
0.41 W/kg (head) 0.53 W/kg (body)
C820
0.41 W/kg (head) 0.53 W/kg (body)