Screen size
s3513.5"
s4009 CrystalWinner: 4.0"+13%
Quick verdict
s4009 Crystal leads the measured specs 10-1.
Measured wins
s351
1
spec wins
Ties
5
equal specs
s4009 Crystal
10
spec wins
Overall winner
Screen size
Technology
s351
GSM / HSPA
s4009 Crystal
GSM / HSPA
2G bands
s351
GSM 850 / 900 / 1800 / 1900 - SIM1 & SIM 2 (optional)
s4009 Crystal
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
3G bands
s351
HSDPA 850 / 1900
s4009 Crystal
HSDPA 850 / 1900 / 2100
Speed
s351
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
equal specs3.5mm jack
equal specsSD card
equal specsStereo speakers
s4009 Crystal
HSPA 21.1/5.76 Mbps
Announced
s351
2014, June. Released 2014, June
s4009 Crystal
2017, June. Released 2017, June
Status
s351
Discontinued
s4009 Crystal
Discontinued
Dimensions
s351
116.9 x 62.7 x 12.7 mm (4.60 x 2.47 x 0.5 in)
s4009 Crystal
127 x 66 x 10.7 mm (5.0 x 2.60 x 0.42 in)
Weight
s351
90.5 g (3.21 oz)
s4009 Crystal
-
SIM
s351
Single SIM or Dual SIM (dual stand-by)
s4009 Crystal
Dual SIM (Mini-SIM/ Micro-SIM, dual stand-by)
Type
s351
TFT
s4009 Crystal
TFT
Size
s351
3.5 inches
s4009 Crystal
4.0 inches, 45.5 cm2 (~54.3% screen-to-body ratio)
Resolution
s351
320 x 480 pixels
s4009 Crystal
480 x 800 pixels, 5:3 ratio (~233 ppi density)
OS
s351
Android 4.1.2 (Jelly Bean)
s4009 Crystal
Android 6.0 (Marshmallow)
CPU
s351
Dual-core 1.0 GHz
s4009 Crystal
Dual-core 1.3 GHz Cortex-A7
Chipset
s351
-
s4009 Crystal
Mediatek MT6570 (28 nm)
GPU
s351
-
s4009 Crystal
Mali-400
Card slot
s351
microSDHC
s4009 Crystal
microSDXC
Internal
s351
512MB 512MB RAM
s4009 Crystal
8GB 512MB RAM
Single
s351
2 MP
s4009 Crystal
5 MP, f/2.4
Video
s351
Yes
s4009 Crystal
720p@30fps
Features
s351
-
s4009 Crystal
LED flash, panorama
Single
s351
VGA
s4009 Crystal
2 MP
Video
s351
s4009 Crystal
Loudspeaker
s351
Yes
s4009 Crystal
Yes
3.5mm jack
s351
Yes
s4009 Crystal
Yes
WLAN
s351
Wi-Fi 802.11 b/g/n, hotspot
s4009 Crystal
Wi-Fi 802.11 b/g/n, Wi-Fi Direct
Bluetooth
s351
2.0
s4009 Crystal
4.0, A2DP, LE
Positioning
s351
No
s4009 Crystal
GPS
NFC
s351
No
s4009 Crystal
No
Radio
s351
FM radio
s4009 Crystal
Stereo FM radio
USB
s351
2.0
s4009 Crystal
microUSB 2.0
Sensors
s351
Accelerometer
s4009 Crystal
Accelerometer
Type
s351
Li-Ion 1150 mAh, removable
s4009 Crystal
Li-Ion 1200 mAh, removable
Stand-by
s351
Up to 144 h (3G)
s4009 Crystal
Up to 150 h (3G)
Talk time
s351
Up to 4 h (3G)
s4009 Crystal
Up to 4 h (3G)
Colors
s351
Black/Green
s4009 Crystal
Black/Gold
SAR
s351
-
s4009 Crystal
1.13 W/kg (head) 0.81 W/kg (body)