Screen size
S309Winner: 4.0"+30%
X5262.8"
Quick verdict
S309 leads the measured specs 13-1.
Measured wins
S309
13
spec wins
Overall winner
Ties
2
equal specs
X526
1
spec wins
Screen size
Technology
S309
GSM / HSPA
X526
GSM
2G bands
S309
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
X526
GSM 900 / 1800 / 1900 - SIM 1, GSM 900 / 1800 / 1900 - SIM 2
3G bands
S309
HSDPA 900 / 2100
X526
-
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
5G support
equal specsNFC
3.5mm jack
SD card
equal specsStereo speakers
X526
-
GPRS
S309
-
X526
Class 12
EDGE
S309
-
X526
No
Announced
S309
2015, July. Released 2015, July
X526
2011, July. Released 2011, July
Status
S309
Discontinued
X526
Discontinued
Dimensions
S309
127.6 x 64.7 x 10.8 mm (5.02 x 2.55 x 0.43 in)
X526
109 x 53.6 x 18.5 mm (4.29 x 2.11 x 0.73 in)
Weight
S309
127 g (4.48 oz)
X526
126 g (4.44 oz)
SIM
S309
Dual SIM (Mini-SIM, dual stand-by)
X526
Dual SIM (Mini-SIM)
Type
S309
TFT, 256K colors
X526
TFT, 256K colors
Size
S309
4.0 inches, 45.5 cm2 (~55.2% screen-to-body ratio)
X526
2.8 inches, 24.3 cm2 (~41.6% screen-to-body ratio)
Resolution
S309
480 x 800 pixels, 5:3 ratio (~233 ppi density)
X526
240 x 320 pixels, 4:3 ratio (~143 ppi density)
Other
S309
-
X526
External OLED display, 96x64 pixels
OS
S309
Android 5.1 (Lollipop)
X526
-
CPU
S309
Dual-core 1.0 GHz
X526
-
Card slot
S309
microSDHC (dedicated slot)
X526
miniSD, up to 16 GB
Internal
S309
8GB 1GB RAM
X526
1MB
Phonebook
S309
-
X526
Yes, Photocall
Call records
S309
-
X526
Yes
Single
S309
5 MP, AF
X526
2 MP
Features
S309
LED flash
X526
LED flash
Video
S309
Yes
X526
CIF@15fps
Single
S309
VGA
X526
-
Video
S309
X526
-
Other
S309
-
X526
No
Loudspeaker
S309
Yes
X526
Yes
3.5mm jack
S309
Yes
X526
No
WLAN
S309
Wi-Fi 802.11 b/g/n, hotspot
X526
No
Bluetooth
S309
4.0, A2DP
X526
2.0, A2DP
Positioning
S309
GPS
X526
No
NFC
S309
No
X526
-
Radio
S309
FM radio
X526
FM radio
USB
S309
microUSB 2.0
X526
miniUSB 1.1
Sensors
S309
Accelerometer, proximity
X526
Messaging
S309
-
X526
SMS(threaded view), MMS, Email, IM
Games
S309
-
X526
Yes
Java
S309
-
X526
Yes, MIDP 2.0
Other
S309
-
X526
MP3/WAV/AAC player MP4/H.263 player Organizer Voice memo Predictive text input
Type
S309
Li-Ion 1600 mAh, removable
X526
Removable Li-Ion 1200 mAh battery
Stand-by
S309
Up to 500 h (3G)
X526
Up to 720 h
Talk time
S309
Up to 9 h 30 min (3G)
X526
Up to 10 h
Colors
S309
Black, Red
X526
Silver/Black