Screen size
s3504 Mystic II3.5"
s4009 CrystalWinner: 4.0"+13%
Quick verdict
s4009 Crystal leads the measured specs 8-1.
Measured wins
s3504 Mystic II
1
spec wins
Ties
7
equal specs
s4009 Crystal
8
spec wins
Overall winner
Screen size
Technology
s3504 Mystic II
GSM / HSPA
s4009 Crystal
GSM / HSPA
2G bands
s3504 Mystic II
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
s4009 Crystal
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
3G bands
s3504 Mystic II
HSDPA 850 / 1900
s4009 Crystal
HSDPA 850 / 1900 / 2100
Speed
s3504 Mystic II
HSPA 21.1/5.76 Mbps
Resolution
Refresh rate
Peak brightness
Pixel density
CPU speed
RAM
Storage
Main camera
equal specsFront camera
Battery
equal specsWired 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
s3504 Mystic II
2015, August. Released 2015, August
s4009 Crystal
2017, June. Released 2017, June
Status
s3504 Mystic II
Discontinued
s4009 Crystal
Discontinued
Dimensions
s3504 Mystic II
119 x 65 x 12 mm (4.69 x 2.56 x 0.47 in)
s4009 Crystal
127 x 66 x 10.7 mm (5.0 x 2.60 x 0.42 in)
Weight
s3504 Mystic II
105 g (3.70 oz)
s4009 Crystal
-
SIM
s3504 Mystic II
Dual SIM (Mini-SIM, dual stand-by)
s4009 Crystal
Dual SIM (Mini-SIM/ Micro-SIM, dual stand-by)
Type
s3504 Mystic II
TFT, 256K colors
s4009 Crystal
TFT
Size
s3504 Mystic II
3.5 inches, 36.5 cm2 (~47.2% screen-to-body ratio)
s4009 Crystal
4.0 inches, 45.5 cm2 (~54.3% screen-to-body ratio)
Resolution
s3504 Mystic II
320 x 480 pixels, 3:2 ratio (~165 ppi density)
s4009 Crystal
480 x 800 pixels, 5:3 ratio (~233 ppi density)
OS
s3504 Mystic II
Android 4.2 (Jelly Bean)
s4009 Crystal
Android 6.0 (Marshmallow)
Chipset
s3504 Mystic II
Mediatek MT6572M (28 nm)
s4009 Crystal
Mediatek MT6570 (28 nm)
CPU
s3504 Mystic II
Dual-core 1.0 GHz Cortex-A7
s4009 Crystal
Dual-core 1.3 GHz Cortex-A7
GPU
s3504 Mystic II
Mali-400
s4009 Crystal
Mali-400
Card slot
s3504 Mystic II
microSDHC
s4009 Crystal
microSDXC
Internal
s3504 Mystic II
4GB 512MB RAM
s4009 Crystal
8GB 512MB RAM
Single
s3504 Mystic II
5 MP
s4009 Crystal
5 MP, f/2.4
Features
s3504 Mystic II
Panorama
s4009 Crystal
LED flash, panorama
Video
s3504 Mystic II
720p@30fps
s4009 Crystal
720p@30fps
Single
s3504 Mystic II
1.3 MP
s4009 Crystal
2 MP
Video
s3504 Mystic II
s4009 Crystal
Loudspeaker
s3504 Mystic II
Yes
s4009 Crystal
Yes
3.5mm jack
s3504 Mystic II
Yes
s4009 Crystal
Yes
WLAN
s3504 Mystic II
Wi-Fi 802.11 b/g/n, hotspot
s4009 Crystal
Wi-Fi 802.11 b/g/n, Wi-Fi Direct
Bluetooth
s3504 Mystic II
3.0, A2DP
s4009 Crystal
4.0, A2DP, LE
Positioning
s3504 Mystic II
No
s4009 Crystal
GPS
NFC
s3504 Mystic II
No
s4009 Crystal
No
Radio
s3504 Mystic II
Stereo FM radio
s4009 Crystal
Stereo FM radio
USB
s3504 Mystic II
microUSB 2.0
s4009 Crystal
microUSB 2.0
Sensors
s3504 Mystic II
Accelerometer
s4009 Crystal
Accelerometer
Type
s3504 Mystic II
Li-Ion 1200 mAh, removable
s4009 Crystal
Li-Ion 1200 mAh, removable
Stand-by
s3504 Mystic II
Up to 170 h (3G)
s4009 Crystal
Up to 150 h (3G)
Talk time
s3504 Mystic II
Up to 4 h (3G)
s4009 Crystal
Up to 4 h (3G)
Colors
s3504 Mystic II
Black
s4009 Crystal
Black/Gold
SAR
s3504 Mystic II
0.83 W/kg (head) 1.17 W/kg (body)
s4009 Crystal
1.13 W/kg (head) 0.81 W/kg (body)