Screen size
R28 Denali2.4"
s4009 CrystalWinner: 4.0"+40%
Quick verdict
s4009 Crystal leads the measured specs 9-3.
Measured wins
R28 Denali
3
spec wins
Ties
5
equal specs
s4009 Crystal
9
spec wins
Overall winner
Screen size
Technology
R28 Denali
GSM / HSPA
s4009 Crystal
GSM / HSPA
2G bands
R28 Denali
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
s4009 Crystal
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
3G bands
R28 Denali
HSDPA 850 / 1700(AWS) / 1900
s4009 Crystal
HSDPA 850 / 1900 / 2100
Speed
R28 Denali
HSPA 7.2/5.76 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
SD card
equal specsStereo speakers
s4009 Crystal
HSPA 21.1/5.76 Mbps
Announced
R28 Denali
2015, August. Released 2015, August
s4009 Crystal
2017, June. Released 2017, June
Status
R28 Denali
Discontinued
s4009 Crystal
Discontinued
Dimensions
R28 Denali
132 x 48.5 x 15 mm (5.20 x 1.91 x 0.59 in)
s4009 Crystal
127 x 66 x 10.7 mm (5.0 x 2.60 x 0.42 in)
Weight
R28 Denali
127 g (4.48 oz)
s4009 Crystal
-
SIM
R28 Denali
Dual SIM (Mini-SIM/ Micro-SIM)
s4009 Crystal
Dual SIM (Mini-SIM/ Micro-SIM, dual stand-by)
Other
R28 Denali
IP67 dust/water resistant (up to 1m for 30 min) Flashlight
s4009 Crystal
-
Type
R28 Denali
TFT, 65K colors
s4009 Crystal
TFT
Size
R28 Denali
2.4 inches, 17.8 cm2 (~27.9% screen-to-body ratio)
s4009 Crystal
4.0 inches, 45.5 cm2 (~54.3% screen-to-body ratio)
Resolution
R28 Denali
240 x 320 pixels, 4:3 ratio (~167 ppi density)
s4009 Crystal
480 x 800 pixels, 5:3 ratio (~233 ppi density)
Protection
R28 Denali
Scratch-resistant glass
s4009 Crystal
-
CPU
R28 Denali
611 MHz
s4009 Crystal
Dual-core 1.3 GHz Cortex-A7
OS
R28 Denali
-
s4009 Crystal
Android 6.0 (Marshmallow)
Chipset
R28 Denali
-
s4009 Crystal
Mediatek MT6570 (28 nm)
GPU
R28 Denali
-
s4009 Crystal
Mali-400
Card slot
R28 Denali
microSDHC
s4009 Crystal
microSDXC
Phonebook
R28 Denali
Yes
s4009 Crystal
-
Call records
R28 Denali
Yes
s4009 Crystal
-
Internal
R28 Denali
-
s4009 Crystal
8GB 512MB RAM
Single
R28 Denali
5 MP
s4009 Crystal
5 MP, f/2.4
Video
R28 Denali
Yes
s4009 Crystal
720p@30fps
Features
R28 Denali
-
s4009 Crystal
LED flash, panorama
Other
R28 Denali
No
s4009 Crystal
-
Single
R28 Denali
-
s4009 Crystal
2 MP
Video
R28 Denali
-
s4009 Crystal
Loudspeaker
R28 Denali
Yes
s4009 Crystal
Yes
3.5mm jack
R28 Denali
No
s4009 Crystal
Yes
WLAN
R28 Denali
No
s4009 Crystal
Wi-Fi 802.11 b/g/n, Wi-Fi Direct
Bluetooth
R28 Denali
3.0, A2DP
s4009 Crystal
4.0, A2DP, LE
Positioning
R28 Denali
No
s4009 Crystal
GPS
NFC
R28 Denali
No
s4009 Crystal
No
Radio
R28 Denali
Stereo FM radio, built-in antenna
s4009 Crystal
Stereo FM radio
USB
R28 Denali
microUSB 2.0
s4009 Crystal
microUSB 2.0
Sensors
R28 Denali
s4009 Crystal
Accelerometer
Messaging
R28 Denali
SMS, MMS, Email
s4009 Crystal
-
Games
R28 Denali
No
s4009 Crystal
-
Java
R28 Denali
No
s4009 Crystal
-
Other
R28 Denali
MP3/AAC+/WAV player MP4/H.264 player
s4009 Crystal
-
Type
R28 Denali
Li-Ion 1400 mAh battery
s4009 Crystal
Li-Ion 1200 mAh, removable
Stand-by
R28 Denali
Up to 240 h (3G)
s4009 Crystal
Up to 150 h (3G)
Talk time
R28 Denali
Up to 7 h (3G)
s4009 Crystal
Up to 4 h (3G)
Colors
R28 Denali
Black
s4009 Crystal
Black/Gold
SAR
R28 Denali
0.83 W/kg (head) 1.28 W/kg (body)
s4009 Crystal
1.13 W/kg (head) 0.81 W/kg (body)