Screen size
equal specsA1055.0"
S15.0"
Quick verdict
S1 leads the measured specs 11-0.
Measured wins
A105
0
spec wins
Ties
6
equal specs
S1
11
spec wins
Overall winner
Screen size
equal specsTechnology
A105
GSM
S1
GSM / HSPA
2G bands
A105
GSM 900 / 1800 - SIM 1 & SIM 2
S1
GSM 900 / 1800 - SIM 1 & SIM 2
GPRS
A105
Class 12
S1
-
EDGE
A105
Class 12
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
equal specs5G support
equal specsNFC
equal specs3.5mm jack
equal specsSD card
equal specsStereo speakers
-
3G bands
A105
-
S1
HSDPA 2100
Speed
A105
-
S1
HSPA
Announced
A105
2013, August. Released 2013, August
S1
2014, February. Released 2014, February
Status
A105
Discontinued
S1
Discontinued
Dimensions
A105
-
S1
144 x 71 x 8.9 mm (5.67 x 2.80 x 0.35 in)
Weight
A105
-
S1
137 g (4.83 oz)
SIM
A105
Dual SIM (Mini-SIM)
S1
Dual SIM
Type
A105
TFT
S1
IPS LCD
Size
A105
5.0 inches, 71.2 cm2
S1
5.0 inches, 68.9 cm2 (~67.4% screen-to-body ratio)
Resolution
A105
480 x 800 pixels, 5:3 ratio (~187 ppi density)
S1
1080 x 1920 pixels, 16:9 ratio (~441 ppi density)
OS
A105
Android 4.0.4 (Ice Cream Sandwich)
S1
Android 4.2.1 (Jelly Bean)
Chipset
A105
Mediatek MT6517A
S1
-
CPU
A105
Dual-core 1.0 GHz Cortex-A9
S1
Quad-core 1.5 GHz
GPU
A105
PowerVR SGX531u
S1
-
Card slot
A105
microSDHC (dedicated slot)
S1
microSDHC (dedicated slot)
Internal
A105
512MB 512MB RAM
S1
16GB 1GB RAM
Single
A105
5 MP
S1
13 MP, AF
Video
A105
Yes
S1
Yes
Features
A105
-
S1
LED flash
Single
A105
VGA
S1
8 MP
Video
A105
S1
Loudspeaker
A105
Yes
S1
Yes
3.5mm jack
A105
Yes
S1
Yes
WLAN
A105
Wi-Fi 802.11 b/g/n
S1
Wi-Fi 802.11 b/g/n, hotspot
Bluetooth
A105
Yes
S1
4.0, A2DP
Positioning
A105
No
S1
GPS
NFC
A105
No
S1
No
Radio
A105
FM radio
S1
FM radio
USB
A105
microUSB 2.0
S1
microUSB 2.0
Sensors
A105
Accelerometer, proximity
S1
Accelerometer, proximity
Type
A105
Li-Ion 2100 mAh battery
S1
Li-Ion 2300 mAh battery
Colors
A105
Black, White
S1
Black
SAR EU
A105
0.80 W/kg (head) 0.98 W/kg (body)
S1
-