Screen size
S309Winner: 4.0"+64%
X1251.4"
Quick verdict
S309 leads the measured specs 13-1.
Measured wins
S309
13
spec wins
Overall winner
Ties
2
equal specs
X125
1
spec wins
Screen size
Technology
S309
GSM / HSPA
X125
GSM
2G bands
S309
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
X125
GSM 900 / 1800
3G bands
S309
HSDPA 900 / 2100
X125
-
Speed
S309
HSPA 21.1/5.76 Mbps
X125
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
3.5mm jack
SD card
equal specsStereo speakers
-
GPRS
S309
-
X125
No
EDGE
S309
-
X125
No
Announced
S309
2015, July. Released 2015, July
X125
2012, January. Released 2012, January
Status
S309
Discontinued
X125
Discontinued
Dimensions
S309
127.6 x 64.7 x 10.8 mm (5.02 x 2.55 x 0.43 in)
X125
107.5 x 43 x 15.5 mm (4.23 x 1.69 x 0.61 in)
Weight
S309
127 g (4.48 oz)
X125
68 g (2.40 oz)
SIM
S309
Dual SIM (Mini-SIM, dual stand-by)
X125
Mini-SIM
Other
S309
-
X125
Flashlight
Type
S309
TFT, 256K colors
X125
TFT, 65K colors
Size
S309
4.0 inches, 45.5 cm2 (~55.2% screen-to-body ratio)
X125
1.44 inches, 1.44, 6.7 cm2 (~14.5% screen-to-body ratio)
Resolution
S309
480 x 800 pixels, 5:3 ratio (~233 ppi density)
X125
128 x 128 pixels, 1:1 ratio (~126 ppi density)
OS
S309
Android 5.1 (Lollipop)
X125
-
CPU
S309
Dual-core 1.0 GHz
X125
-
Card slot
S309
microSDHC (dedicated slot)
X125
microSD (dedicated slot)
Internal
S309
8GB 1GB RAM
X125
-
Phonebook
S309
-
X125
Yes
Call records
S309
-
X125
Yes
Single
S309
5 MP, AF
X125
-
Features
S309
LED flash
X125
-
Video
S309
Yes
X125
-
Single
S309
VGA
X125
-
Video
S309
X125
-
Loudspeaker
S309
Yes
X125
Yes
3.5mm jack
S309
Yes
X125
No
WLAN
S309
Wi-Fi 802.11 b/g/n, hotspot
X125
No
Bluetooth
S309
4.0, A2DP
X125
No
Positioning
S309
GPS
X125
No
NFC
S309
No
X125
-
Radio
S309
FM radio
X125
FM radio
USB
S309
microUSB 2.0
X125
miniUSB
Sensors
S309
Accelerometer, proximity
X125
Messaging
S309
-
X125
SMS
Games
S309
-
X125
Yes
Java
S309
-
X125
No
Other
S309
-
X125
MP3 player Organizer Predictive text input
Type
S309
Li-Ion 1600 mAh, removable
X125
Removable Li-Ion 1050 mAh battery
Stand-by
S309
Up to 500 h (3G)
X125
Up to 720 h
Talk time
S309
Up to 9 h 30 min (3G)
X125
Up to 8 h
Colors
S309
Black, Red
X125
Black
Other
S309
-
X125
No