Screen size
S309Winner: 4.0"+40%
Xenium X5232.4"
Quick verdict
S309 leads the measured specs 9-3.
Measured wins
S309
9
spec wins
Overall winner
Ties
4
equal specs
Xenium X523
3
spec wins
Screen size
Technology
S309
GSM / HSPA
Xenium X523
GSM
2G bands
S309
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
Xenium X523
GSM 850 / 900 / 1800 / 1900 - SIM 1, GSM 850 / 900 / 1800 / 1900 - SIM 2
3G bands
S309
HSDPA 900 / 2100
Xenium X523
-
Speed
S309
HSPA 21.1/5.76 Mbps
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
3.5mm jack
equal specsSD card
equal specsStereo speakers
Xenium X523
-
GPRS
S309
-
Xenium X523
Class 12
EDGE
S309
-
Xenium X523
Yes
Announced
S309
2015, July. Released 2015, July
Xenium X523
2011, April. Released 2011, Q2
Status
S309
Discontinued
Xenium X523
Discontinued
Dimensions
S309
127.6 x 64.7 x 10.8 mm (5.02 x 2.55 x 0.43 in)
Xenium X523
117.5 x 51 x 15 mm (4.63 x 2.01 x 0.59 in)
Weight
S309
127 g (4.48 oz)
Xenium X523
116.8 g (4.09 oz)
SIM
S309
Dual SIM (Mini-SIM, dual stand-by)
Xenium X523
Dual SIM (Mini-SIM)
Type
S309
TFT, 256K colors
Xenium X523
TFT, 256K colors
Size
S309
4.0 inches, 45.5 cm2 (~55.2% screen-to-body ratio)
Xenium X523
2.4 inches, 17.8 cm2 (~29.8% screen-to-body ratio)
Resolution
S309
480 x 800 pixels, 5:3 ratio (~233 ppi density)
Xenium X523
240 x 320 pixels, 4:3 ratio (~167 ppi density)
OS
S309
Android 5.1 (Lollipop)
Xenium X523
-
CPU
S309
Dual-core 1.0 GHz
Xenium X523
-
Card slot
S309
microSDHC (dedicated slot)
Xenium X523
microSDHC (dedicated slot)
Internal
S309
8GB 1GB RAM
Xenium X523
78MB
Phonebook
S309
-
Xenium X523
Yes, Photocall
Call records
S309
-
Xenium X523
Yes
Single
S309
5 MP, AF
Xenium X523
3.15 MP
Features
S309
LED flash
Xenium X523
-
Video
S309
Yes
Xenium X523
QCIF@15fps
Single
S309
VGA
Xenium X523
-
Video
S309
Xenium X523
-
Other
S309
-
Xenium X523
No
Loudspeaker
S309
Yes
Xenium X523
Yes
3.5mm jack
S309
Yes
Xenium X523
Yes
WLAN
S309
Wi-Fi 802.11 b/g/n, hotspot
Xenium X523
No
Bluetooth
S309
4.0, A2DP
Xenium X523
2.1, A2DP
Positioning
S309
GPS
Xenium X523
No
NFC
S309
No
Xenium X523
-
Radio
S309
FM radio
Xenium X523
FM radio
USB
S309
microUSB 2.0
Xenium X523
miniUSB 2.0
Sensors
S309
Accelerometer, proximity
Xenium X523
Messaging
S309
-
Xenium X523
SMS, MMS, Email
Browser
S309
-
Xenium X523
WAP 2.0/xHTML, HTML
Games
S309
-
Xenium X523
Yes
Java
S309
-
Xenium X523
Yes, MIDP 2.0
Other
S309
-
Xenium X523
MP3/AAC+/WMA/WAV player MP4/H.264 player Organizer Voice memo Predictive text input
Type
S309
Li-Ion 1600 mAh, removable
Xenium X523
Removable Li-Ion 2000 mAh battery
Stand-by
S309
Up to 500 h (3G)
Xenium X523
Up to 1200 h
Talk time
S309
Up to 9 h 30 min (3G)
Xenium X523
Up to 16 h
Colors
S309
Black, Red
Xenium X523
Red/Black