Screen size
C66+2.4"
S1Winner: 5.0"+52%
Quick verdict
S1 leads the measured specs 12-1.
Measured wins
C66+
1
spec wins
Ties
4
equal specs
S1
12
spec wins
Overall winner
Screen size
Technology
C66+
GSM
S1
GSM / HSPA
2G bands
C66+
GSM 900 / 1800 - SIM 1 & SIM 2
S1
GSM 900 / 1800 - SIM 1 & SIM 2
GPRS
C66+
No
S1
-
EDGE
C66+
No
S1
-
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
equal specsSD card
equal specsStereo speakers
3G bands
C66+
-
S1
HSDPA 2100
Speed
C66+
-
S1
HSPA
Announced
C66+
2014
S1
2014, February. Released 2014, February
Status
C66+
Discontinued
S1
Discontinued
Dimensions
C66+
116.9 x 49 x 10.5 mm (4.60 x 1.93 x 0.41 in)
S1
144 x 71 x 8.9 mm (5.67 x 2.80 x 0.35 in)
Weight
C66+
90 g (3.17 oz)
S1
137 g (4.83 oz)
SIM
C66+
Dual SIM
S1
Dual SIM
Other
C66+
Flashlight
S1
-
Type
C66+
TFT
S1
IPS LCD
Size
C66+
2.4 inches, 17.8 cm2 (~31.1% screen-to-body ratio)
S1
5.0 inches, 68.9 cm2 (~67.4% screen-to-body ratio)
Resolution
C66+
240 x 320 pixels, 4:3 ratio (~167 ppi density)
S1
1080 x 1920 pixels, 16:9 ratio (~441 ppi density)
Card slot
C66+
microSDHC
S1
microSDHC (dedicated slot)
Phonebook
C66+
Yes
S1
-
Call records
C66+
Yes
S1
-
Internal
C66+
-
S1
16GB 1GB RAM
Single
C66+
Yes
S1
13 MP, AF
Video
C66+
Yes
S1
Yes
Features
C66+
-
S1
LED flash
Other
C66+
No
S1
-
Single
C66+
-
S1
8 MP
Video
C66+
-
S1
Loudspeaker
C66+
Yes
S1
Yes
3.5mm jack
C66+
Yes
S1
Yes
WLAN
C66+
No
S1
Wi-Fi 802.11 b/g/n, hotspot
Bluetooth
C66+
2.0
S1
4.0, A2DP
Positioning
C66+
No
S1
GPS
NFC
C66+
No
S1
No
Radio
C66+
FM radio
S1
FM radio
USB
C66+
microUSB
S1
microUSB 2.0
Sensors
C66+
S1
Accelerometer, proximity
Messaging
C66+
SMS
S1
-
Games
C66+
Yes
S1
-
Java
C66+
No
S1
-
Other
C66+
Audio/video player
S1
-
Type
C66+
Li-Ion 1500 mAh, removable
S1
Li-Ion 2300 mAh battery
Colors
C66+
Black
S1
Black
SAR EU
C66+
0.57 W/kg (head) 0.47 W/kg (body)
S1
-
OS
C66+
-
S1
Android 4.2.1 (Jelly Bean)
CPU
C66+
-
S1
Quad-core 1.5 GHz