Screen size
RS753.5"
s4009 CrystalWinner: 4.0"+13%
Quick verdict
s4009 Crystal leads the measured specs 8-4.
Measured wins
RS75
4
spec wins
Ties
5
equal specs
s4009 Crystal
8
spec wins
Overall winner
Screen size
Technology
RS75
GSM / HSPA
s4009 Crystal
GSM / HSPA
2G bands
RS75
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
s4009 Crystal
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
3G bands
RS75
HSDPA 850 / 1900
s4009 Crystal
HSDPA 850 / 1900 / 2100
Speed
RS75
HSPA 7.2/5.76 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
RS75
2013. Released 2013
s4009 Crystal
2017, June. Released 2017, June
Status
RS75
Discontinued
s4009 Crystal
Discontinued
Dimensions
RS75
121.6 x 64.7 x 12.5 mm (4.79 x 2.55 x 0.49 in)
s4009 Crystal
127 x 66 x 10.7 mm (5.0 x 2.60 x 0.42 in)
Weight
RS75
120 g (4.23 oz)
s4009 Crystal
-
SIM
RS75
Dual SIM (Mini-SIM)
s4009 Crystal
Dual SIM (Mini-SIM/ Micro-SIM, dual stand-by)
Other
RS75
IP67 dust/water resistant (up to 1m for 30 min) Flashlight
s4009 Crystal
-
Type
RS75
TFT
s4009 Crystal
TFT
Size
RS75
3.5 inches, 36.5 cm2 (~46.4% screen-to-body ratio)
s4009 Crystal
4.0 inches, 45.5 cm2 (~54.3% screen-to-body ratio)
Resolution
RS75
320 x 480 pixels, 3:2 ratio (~165 ppi density)
s4009 Crystal
480 x 800 pixels, 5:3 ratio (~233 ppi density)
Protection
RS75
Scratch-resistant glass
s4009 Crystal
-
OS
RS75
Android 2.3 (Gingerbread)
s4009 Crystal
Android 6.0 (Marshmallow)
CPU
RS75
1.0 GHz
s4009 Crystal
Dual-core 1.3 GHz Cortex-A7
Chipset
RS75
-
s4009 Crystal
Mediatek MT6570 (28 nm)
GPU
RS75
-
s4009 Crystal
Mali-400
Card slot
RS75
microSDHC (dedicated slot)
s4009 Crystal
microSDXC
Internal
RS75
-
s4009 Crystal
8GB 512MB RAM
Single
RS75
3.15 MP
s4009 Crystal
5 MP, f/2.4
Video
RS75
Yes
s4009 Crystal
720p@30fps
Features
RS75
-
s4009 Crystal
LED flash, panorama
Single
RS75
VGA
s4009 Crystal
2 MP
Video
RS75
s4009 Crystal
Loudspeaker
RS75
Yes
s4009 Crystal
Yes
3.5mm jack
RS75
Yes
s4009 Crystal
Yes
WLAN
RS75
Wi-Fi 802.11 b/g, hotspot
s4009 Crystal
Wi-Fi 802.11 b/g/n, Wi-Fi Direct
Bluetooth
RS75
2.1
s4009 Crystal
4.0, A2DP, LE
Positioning
RS75
GPS
s4009 Crystal
GPS
NFC
RS75
No
s4009 Crystal
No
Radio
RS75
FM radio
s4009 Crystal
Stereo FM radio
USB
RS75
2.0
s4009 Crystal
microUSB 2.0
Sensors
RS75
Accelerometer, proximity
s4009 Crystal
Accelerometer
Type
RS75
Li-Ion 1350 mAh, removable
s4009 Crystal
Li-Ion 1200 mAh, removable
Stand-by
RS75
Up to 120 h
s4009 Crystal
Up to 150 h (3G)
Talk time
RS75
Up to 6 h
s4009 Crystal
Up to 4 h (3G)
Colors
RS75
Black
s4009 Crystal
Black/Gold
SAR
RS75
-
s4009 Crystal
1.13 W/kg (head) 0.81 W/kg (body)