Screen size
i7202.8"
s4009 CrystalWinner: 4.0"+30%
Quick verdict
s4009 Crystal leads the measured specs 12-1.
Measured wins
i720
1
spec wins
Ties
3
equal specs
s4009 Crystal
12
spec wins
Overall winner
Screen size
Technology
i720
GSM
s4009 Crystal
GSM / HSPA
2G bands
i720
GSM 850 / 900 / 1800 / 1900
s4009 Crystal
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
GPRS
i720
Class 12
s4009 Crystal
-
EDGE
i720
Class 12 (4+1/3+2 slots), 180 - 230 kbps
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
equal specsSD card
equal specsStereo speakers
s4009 Crystal
-
3G bands
i720
-
s4009 Crystal
HSDPA 850 / 1900 / 2100
Speed
i720
-
s4009 Crystal
HSPA 21.1/5.76 Mbps
Announced
i720
2011. Released 2011
s4009 Crystal
2017, June. Released 2017, June
Status
i720
Discontinued
s4009 Crystal
Discontinued
Dimensions
i720
102 x 62 x 16.3 mm (4.02 x 2.44 x 0.64 in)
s4009 Crystal
127 x 66 x 10.7 mm (5.0 x 2.60 x 0.42 in)
Weight
i720
145 g (5.11 oz)
s4009 Crystal
-
Keyboard
i720
QWERTY
s4009 Crystal
-
SIM
i720
Mini-SIM
s4009 Crystal
Dual SIM (Mini-SIM/ Micro-SIM, dual stand-by)
Type
i720
TFT
s4009 Crystal
TFT
Size
i720
2.8 inches, 24.3 cm2 (~38.4% screen-to-body ratio)
s4009 Crystal
4.0 inches, 45.5 cm2 (~54.3% screen-to-body ratio)
Resolution
i720
240 x 320 pixels, 4:3 ratio (~143 ppi density)
s4009 Crystal
480 x 800 pixels, 5:3 ratio (~233 ppi density)
Card slot
i720
microSD (dedicated slot)
s4009 Crystal
microSDXC
Phonebook
i720
1000 entries
s4009 Crystal
-
Call records
i720
Yes
s4009 Crystal
-
Internal
i720
-
s4009 Crystal
8GB 512MB RAM
Single
i720
2 MP
s4009 Crystal
5 MP, f/2.4
Video
i720
Yes
s4009 Crystal
720p@30fps
Features
i720
-
s4009 Crystal
LED flash, panorama
Other
i720
No
s4009 Crystal
-
Single
i720
-
s4009 Crystal
2 MP
Video
i720
-
s4009 Crystal
Loudspeaker
i720
Yes
s4009 Crystal
Yes
3.5mm jack
i720
Yes
s4009 Crystal
Yes
WLAN
i720
Wi-Fi 802.11
s4009 Crystal
Wi-Fi 802.11 b/g/n, Wi-Fi Direct
Bluetooth
i720
2.0, A2DP
s4009 Crystal
4.0, A2DP, LE
Positioning
i720
No
s4009 Crystal
GPS
Radio
i720
FM radio
s4009 Crystal
Stereo FM radio
USB
i720
1.2
s4009 Crystal
microUSB 2.0
NFC
i720
-
s4009 Crystal
No
Sensors
i720
s4009 Crystal
Accelerometer
Messaging
i720
SMS, MMS, Email, IM
s4009 Crystal
-
Games
i720
Yes
s4009 Crystal
-
Java
i720
Yes, MIDP 2.0
s4009 Crystal
-
Other
i720
Webcam MP3/MP4/3GP player Organizer Unit & currency converter SNS applications Voice memo Predictive text input
s4009 Crystal
-
Type
i720
Removable Li-Ion battery
s4009 Crystal
Li-Ion 1200 mAh, removable
Stand-by
i720
Up to 350 h
s4009 Crystal
Up to 150 h (3G)
Talk time
i720
Up to 5 h
s4009 Crystal
Up to 4 h (3G)
Colors
i720
Black
s4009 Crystal
Black/Gold
SAR
i720
-
s4009 Crystal
1.13 W/kg (head) 0.81 W/kg (body)
OS
i720
-
s4009 Crystal
Android 6.0 (Marshmallow)
Chipset
i720
-
s4009 Crystal
Mediatek MT6570 (28 nm)
CPU
i720
-
s4009 Crystal
Dual-core 1.3 GHz Cortex-A7
GPU
i720
-
s4009 Crystal
Mali-400