Screen size
A274.6"
S1Winner: 5.0"+7.4%
Quick verdict
S1 leads the measured specs 14-0.
Measured wins
A27
0
spec wins
Ties
3
equal specs
S1
14
spec wins
Overall winner
Screen size
Technology
A27
GSM / HSPA
S1
GSM / HSPA
2G bands
A27
GSM 900 / 1800 - SIM 1 & SIM 2
S1
GSM 900 / 1800 - SIM 1 & SIM 2
3G bands
A27
HSDPA 2100
S1
HSDPA 2100
Speed
A27
HSPA
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
SD card
equal specsStereo speakers
HSPA
Announced
A27
2013, February. Released 2013, February
S1
2014, February. Released 2014, February
Status
A27
Discontinued
S1
Discontinued
Dimensions
A27
-
S1
144 x 71 x 8.9 mm (5.67 x 2.80 x 0.35 in)
Weight
A27
-
S1
137 g (4.83 oz)
SIM
A27
Dual SIM (Mini-SIM)
S1
Dual SIM
Type
A27
TFT
S1
IPS LCD
Size
A27
4.63 inches, 59.1 cm2
S1
5.0 inches, 68.9 cm2 (~67.4% screen-to-body ratio)
Resolution
A27
480 x 853 pixels, 16:9 ratio (~211 ppi density)
S1
1080 x 1920 pixels, 16:9 ratio (~441 ppi density)
OS
A27
Android 4.0 (Ice Cream Sandwich)
S1
Android 4.2.1 (Jelly Bean)
CPU
A27
1.0 GHz
S1
Quad-core 1.5 GHz
Card slot
A27
microSDHC (dedicated slot)
S1
microSDHC (dedicated slot)
Internal
A27
-
S1
16GB 1GB RAM
Single
A27
8 MP
S1
13 MP, AF
Video
A27
Yes
S1
Yes
Features
A27
-
S1
LED flash
Single
A27
Yes
S1
8 MP
Video
A27
S1
Loudspeaker
A27
Yes
S1
Yes
3.5mm jack
A27
-
S1
Yes
WLAN
A27
Wi-Fi 802.11 b/g/n
S1
Wi-Fi 802.11 b/g/n, hotspot
Bluetooth
A27
Yes
S1
4.0, A2DP
Positioning
A27
GPS
S1
GPS
NFC
A27
No
S1
No
Radio
A27
FM radio
S1
FM radio
USB
A27
Proprietary
S1
microUSB 2.0
Sensors
A27
Accelerometer
S1
Accelerometer, proximity
Type
A27
Li-Ion 1800 mAh battery
S1
Li-Ion 2300 mAh battery
Stand-by
A27
Up to 180 h
S1
-
Talk time
A27
Up to 6 h
S1
-
Colors
A27
Blue, Black, White
S1
Black
Price
A27
About 130 EUR
S1
-