Screen size
S309Winner: 4.0"+40%
X6202.4"
Quick verdict
S309 leads the measured specs 12-2.
Measured wins
S309
12
spec wins
Overall winner
Ties
2
equal specs
X620
2
spec wins
Screen size
Technology
S309
GSM / HSPA
X620
GSM
2G bands
S309
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
X620
GSM 850 / 900 / 1800 / 1900
3G bands
S309
HSDPA 900 / 2100
X620
-
Speed
S309
HSPA 21.1/5.76 Mbps
X620
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
-
X620
Class 10
EDGE
S309
-
X620
Class 10
Announced
S309
2015, July. Released 2015, July
X620
2009, January. Released 2009
Status
S309
Discontinued
X620
Discontinued
Dimensions
S309
127.6 x 64.7 x 10.8 mm (5.02 x 2.55 x 0.43 in)
X620
110 x 50 x 15 mm (4.33 x 1.97 x 0.59 in)
Weight
S309
127 g (4.48 oz)
X620
120 g (4.23 oz)
SIM
S309
Dual SIM (Mini-SIM, dual stand-by)
X620
Mini-SIM
Type
S309
TFT, 256K colors
X620
TFT, 256K colors
Size
S309
4.0 inches, 45.5 cm2 (~55.2% screen-to-body ratio)
X620
2.4 inches, 17.8 cm2 (~32.4% screen-to-body ratio)
Resolution
S309
480 x 800 pixels, 5:3 ratio (~233 ppi density)
X620
240 x 320 pixels, 4:3 ratio (~167 ppi density)
Other
S309
-
X620
Screensavers and wallpapers
OS
S309
Android 5.1 (Lollipop)
X620
-
CPU
S309
Dual-core 1.0 GHz
X620
-
Card slot
S309
microSDHC (dedicated slot)
X620
microSDHC (dedicated slot)
Internal
S309
8GB 1GB RAM
X620
80MB
Phonebook
S309
-
X620
Yes
Call records
S309
-
X620
30 received, dialed and missed calls
Single
S309
5 MP, AF
X620
3.15 MP
Features
S309
LED flash
X620
-
Video
S309
Yes
X620
CIF@15fps
Single
S309
VGA
X620
-
Video
S309
X620
-
Other
S309
-
X620
No
Loudspeaker
S309
Yes
X620
Yes
3.5mm jack
S309
Yes
X620
No
WLAN
S309
Wi-Fi 802.11 b/g/n, hotspot
X620
No
Bluetooth
S309
4.0, A2DP
X620
2.0, A2DP
Positioning
S309
GPS
X620
No
NFC
S309
No
X620
-
Radio
S309
FM radio
X620
FM radio
USB
S309
microUSB 2.0
X620
miniUSB 1.1
Sensors
S309
Accelerometer, proximity
X620
Messaging
S309
-
X620
SMS, MMS
Browser
S309
-
X620
WAP 2.0/xHTML
Games
S309
-
X620
2 games + downloadable
Java
S309
-
X620
Yes, MIDP 2.0
Other
S309
-
X620
MP3/WAV/AAC player Voice memo Organizer Predictive text input
Type
S309
Li-Ion 1600 mAh, removable
X620
Removable Li-Ion 1530 mAh battery
Stand-by
S309
Up to 500 h (3G)
X620
Up to 1200 h
Talk time
S309
Up to 9 h 30 min (3G)
X620
Up to 12 h
Colors
S309
Black, Red
X620
Black
SAR
S309
-
X620
1.09 W/kg (head)
SAR EU
S309
-
X620
0.40 W/kg (head)
Price
S309
-
X620
About 190 EUR