Screen size
S309Winner: 4.0"+50%
X1282.0"
Quick verdict
S309 leads the measured specs 13-1.
Measured wins
S309
13
spec wins
Overall winner
Ties
2
equal specs
X128
1
spec wins
Screen size
Technology
S309
GSM / HSPA
X128
GSM
2G bands
S309
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
X128
GSM 900 / 1800 - SIM 1, GSM 900 / 1800 - SIM 2
3G bands
S309
HSDPA 900 / 2100
X128
-
Speed
S309
HSPA 21.1/5.76 Mbps
X128
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
-
X128
Class 10
EDGE
S309
-
X128
No
Announced
S309
2015, July. Released 2015, July
X128
2011, May. Released 2011, May
Status
S309
Discontinued
X128
Discontinued
Dimensions
S309
127.6 x 64.7 x 10.8 mm (5.02 x 2.55 x 0.43 in)
X128
109.5 x 43 x 15 mm (4.31 x 1.69 x 0.59 in)
Weight
S309
127 g (4.48 oz)
X128
76 g (2.68 oz)
SIM
S309
Dual SIM (Mini-SIM, dual stand-by)
X128
Dual SIM (Mini-SIM)
Other
S309
-
X128
Flashlight
Type
S309
TFT, 256K colors
X128
TFT, 256K colors
Size
S309
4.0 inches, 45.5 cm2 (~55.2% screen-to-body ratio)
X128
2.0 inches, 12.6 cm2 (~26.7% screen-to-body ratio)
Resolution
S309
480 x 800 pixels, 5:3 ratio (~233 ppi density)
X128
176 x 220 pixels (~141 ppi density)
OS
S309
Android 5.1 (Lollipop)
X128
-
CPU
S309
Dual-core 1.0 GHz
X128
-
Card slot
S309
microSDHC (dedicated slot)
X128
microSDHC (dedicated slot)
Internal
S309
8GB 1GB RAM
X128
-
Phonebook
S309
-
X128
Yes
Call records
S309
-
X128
Yes
Single
S309
5 MP, AF
X128
-
Features
S309
LED flash
X128
-
Video
S309
Yes
X128
-
Single
S309
VGA
X128
-
Video
S309
X128
-
Loudspeaker
S309
Yes
X128
Yes
3.5mm jack
S309
Yes
X128
No
WLAN
S309
Wi-Fi 802.11 b/g/n, hotspot
X128
No
Bluetooth
S309
4.0, A2DP
X128
No
Positioning
S309
GPS
X128
No
NFC
S309
No
X128
-
Radio
S309
FM radio
X128
FM radio
USB
S309
microUSB 2.0
X128
No
Sensors
S309
Accelerometer, proximity
X128
Messaging
S309
-
X128
SMS, MMS, Email
Browser
S309
-
X128
WAP 2.0
Games
S309
-
X128
No
Java
S309
-
X128
No
Other
S309
-
X128
MP3/AAC+ player Organizer Voice memo Predictive text input
Type
S309
Li-Ion 1600 mAh, removable
X128
Removable Li-Ion 1050 mAh battery
Stand-by
S309
Up to 500 h (3G)
X128
Up to 850 h
Talk time
S309
Up to 9 h 30 min (3G)
X128
Up to 8 h
Colors
S309
Black, Red
X128
Black
Other
S309
-
X128
No