Screen size
S3094.0"
S388Winner: 4.5"+11%
Quick verdict
S388 leads the measured specs 6-4.
Measured wins
S309
4
spec wins
Ties
6
equal specs
S388
6
spec wins
Overall winner
Screen size
Technology
S309
GSM / HSPA
S388
GSM / HSPA
2G bands
S309
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
S388
GSM 900 / 1800 / 1900 - SIM 1 & SIM 2
3G bands
S309
HSDPA 900 / 2100
S388
HSDPA 900 / 2100
Speed
S309
HSPA 21.1/5.76 Mbps
Resolution
Refresh rate
Peak brightness
Pixel density
CPU speed
RAM
Storage
Main camera
equal specsFront camera
Battery
Wired charging
Weight
Thickness
IP rating
Wi‑Fi
Bluetooth
USB
equal specs5G support
equal specsNFC
equal specs3.5mm jack
equal specsSD card
equal specsStereo speakers
S388
HSPA
Announced
S309
2015, July. Released 2015, July
S388
2014, Q3. Released 2014, Q3
Status
S309
Discontinued
S388
Discontinued
Dimensions
S309
127.6 x 64.7 x 10.8 mm (5.02 x 2.55 x 0.43 in)
S388
131 x 67.1 x 9.1 mm (5.16 x 2.64 x 0.36 in)
Weight
S309
127 g (4.48 oz)
S388
136.5 g (4.83 oz)
SIM
S309
Dual SIM (Mini-SIM, dual stand-by)
S388
Dual SIM
Type
S309
TFT, 256K colors
S388
IPS LCD
Size
S309
4.0 inches, 45.5 cm2 (~55.2% screen-to-body ratio)
S388
4.5 inches, 55.8 cm2 (~63.5% screen-to-body ratio)
Resolution
S309
480 x 800 pixels, 5:3 ratio (~233 ppi density)
S388
540 x 960 pixels, 16:9 ratio (~245 ppi density)
OS
S309
Android 5.1 (Lollipop)
S388
Android 4.2 (Jelly Bean)
CPU
S309
Dual-core 1.0 GHz
S388
Quad-core 1.3 GHz
Card slot
S309
microSDHC (dedicated slot)
S388
microSDHC (dedicated slot)
Internal
S309
8GB 1GB RAM
S388
-
Single
S309
5 MP, AF
S388
5 MP, AF
Features
S309
LED flash
S388
LED flash
Video
S309
Yes
S388
Yes
Single
S309
VGA
S388
-
Video
S309
S388
-
Other
S309
-
S388
No
Loudspeaker
S309
Yes
S388
Yes
3.5mm jack
S309
Yes
S388
Yes
WLAN
S309
Wi-Fi 802.11 b/g/n, hotspot
S388
Wi-Fi 802.11 b/g
Bluetooth
S309
4.0, A2DP
S388
3.0, A2DP
Positioning
S309
GPS
S388
GPS
NFC
S309
No
S388
No
Radio
S309
FM radio
S388
FM radio
USB
S309
microUSB 2.0
S388
microUSB 2.0
Sensors
S309
Accelerometer, proximity
S388
Accelerometer
Type
S309
Li-Ion 1600 mAh, removable
S388
Li-Ion 1700 mAh, removable
Stand-by
S309
Up to 500 h (3G)
S388
-
Talk time
S309
Up to 9 h 30 min (3G)
S388
-
Colors
S309
Black, Red
S388
Black