Comparison between:
- Oukitel C8
- Ulefone S8 Pro
- Xiaomi Redmi 4X

Brand and model

Information about the brand, model and model alias (if any) of a specific device.

Oukitel C8Ulefone S8 ProXiaomi Redmi 4X
Oukitel C8
Prices
Ulefone S8 Pro
Prices
Xiaomi Redmi 4X
Prices
Model alias-S8ProHongmi 4X
Red Rise 4X

Design

Information about the dimensions and weight of the device, shown in different measurement units. Body materials, available colors, certifications.

Width70.5 mm
7.05 cm
0.23 ft
2.78 in
72.2 mm
7.22 cm
0.24 ft
2.84 in
69.96 mm
7 cm
0.23 ft
2.75 in
Height147 mm
14.7 cm
0.48 ft
5.79 in
146.4 mm
14.64 cm
0.48 ft
5.76 in
139.24 mm
13.92 cm
0.46 ft
5.48 in
Thickness10.2 mm
1.02 cm
0.03 ft
0.4 in
9.2 mm
0.92 cm
0.03 ft
0.36 in
8.65 mm
0.87 cm
0.03 ft
0.34 in
Weight156 g
0.34 lbs
5.5 oz
184 g
0.41 lbs
6.49 oz
150 g
0.33 lbs
5.29 oz
Volume105.71 cm³
6.42 in³
97.24 cm³
5.91 in³
84.26 cm³
5.12 in³
ColorsBlack
Gold
Rose-gold
Blue
Purple
Black
White
Gold
Black
Pink
Champagne
Body materialsPlasticPlasticMetal

SIM card

The Subscriber Identity Module (SIM) is used in mobile devices for storing data authenticating the subscribers of mobile services.

SIM card typeMicro-SIM
Nano-SIM
Micro-SIMMicro-SIM
Nano-SIM / microSD
Number of SIM cards222
FeaturesDual SIM stand-by (Both cards are active. When one is busy, the other is not active)Dual SIM stand-by (Both cards are active. When one is busy, the other is not active)-

Networks

A mobile (cellular) network is a radio system, which allows a large number of mobile devices to communicate with each other.

GSMGSM 850 MHz
GSM 900 MHz
GSM 1800 MHz
GSM 1900 MHz
GSM 850 MHz
GSM 900 MHz
GSM 1800 MHz
GSM 1900 MHz
GSM 850 MHz
GSM 900 MHz
GSM 1800 MHz
GSM 1900 MHz
CDMA--CDMA 800 MHz
W-CDMAW-CDMA 850 MHz
W-CDMA 900 MHz
W-CDMA 1900 MHz
W-CDMA 2100 MHz
W-CDMA 850 MHz
W-CDMA 900 MHz
W-CDMA 2100 MHz
W-CDMA 850 MHz
W-CDMA 900 MHz
W-CDMA 1900 MHz
W-CDMA 2100 MHz
TD-SCDMA--TD-SCDMA 1880-1920 MHz
TD-SCDMA 2010-2025 MHz
LTE-LTE 800 MHz
LTE 900 MHz
LTE 1800 MHz
LTE 2100 MHz
LTE 2600 MHz
LTE 850 MHz
LTE 900 MHz
LTE 1800 MHz
LTE 2100 MHz
LTE 2600 MHz
LTE-TDD 1900 MHz (B39)
LTE-TDD 2300 MHz (B40)
LTE-TDD 2500 MHz (B41)
LTE-TDD 2600 MHz (B38)

Mobile network technologies and bandwidth

Communication between devices within mobile networks is realized via various generations of network technologies, which provide different bandwidth.

Mobile network technologiesUMTS
EDGE
GPRS
HSPA+
UMTS
EDGE
GPRS
HSPA+
LTE Cat 4
UMTS
EDGE
GPRS
HSPA+
LTE Cat 4
EV-DO Rev. A
TD-SCDMA
TD-HSDPA

Operating system

Operating system is the system software, which manages and controls the functioning of the hardware components of the device.

Operating system (OS)Android 7.0 NougatAndroid 7.0 NougatMIUI V8 (Android 6.0.1 Marshmallow)
MIUI V8.2 (Android 7.1.1 Nougat)
MIUI V10

System on Chip (SoC)

A system on a chip (SoC) includes into a single chip some of the main hardware components of the mobile device.

SoCMediaTek MT6580AMediaTek MT6737Qualcomm Snapdragon 435 MSM8940
Process technology28 nm28 nm28 nm
CPUARM Cortex-A7ARM Cortex-A534x 1.4 GHz ARM Cortex-A53, 4x 1.1 GHz ARM Cortex-A53
CPU bits32 bit64 bit64 bit
Instruction setARMv7ARMv8-AARMv8
Level 1 cache memory (L1)32 KB + 32 KB32 KB + 32 KB-
Level 2 cache memory (L2)512 KB
0.5 MB
512 KB
0.5 MB
-
CPU cores448
CPU frequency1300 MHz1300 MHz1400 MHz
GPUARM Mali-400 MP2ARM Mali-T720 MP1Qualcomm Adreno 505
GPU cores21-
GPU frequency-600 MHz-
RAM capacity2 GB2 GB2 GB
3 GB
RAM type-LPDDR3LPDDR3
RAM channelsSingle channelSingle channelSingle channel
RAM frequency533 MHz640 MHz800 MHz

Storage

Every mobile device has a built-in storage (internal memory) with a fixed capacity.

Storage16 GB16 GB16 GB
32 GB

Memory cards

Memory cards are used in mobile devices for expanding their external storage capacity.

TypesmicroSD
microSDHC
microSDXC
microSD
microSDHC
microSDXC
microSD
microSDHC
microSDXC

Display

The display of a mobile device is characterized by its technology, resolution, pixel density, diagonal length, color depth, etc.

Type/technologyIPSIPSIPS
Diagonal size5.5 in
139.7 mm
13.97 cm
5.3 in
134.62 mm
13.46 cm
5 in
127 mm
12.7 cm
Width2.46 in
62.48 mm
6.25 cm
2.6 in
66 mm
6.6 cm
2.45 in
62.26 mm
6.23 cm
Height4.92 in
124.95 mm
12.5 cm
4.62 in
117.33 mm
11.73 cm
4.36 in
110.69 mm
11.07 cm
Aspect ratio2:1
2:1 (18:9)
1.778:1
16:9
1.778:1
16:9
Resolution640 x 1280 pixels720 x 1280 pixels720 x 1280 pixels
Pixel density260 ppi
102 ppcm
277 ppi
108 ppcm
294 ppi
115 ppcm
Color depth24 bit
16777216 colors
24 bit
16777216 colors
24 bit
16777216 colors
Display area75.57 %73.5 %70.98 %
Other featuresCapacitive
Multi-touch
Scratch resistant
Capacitive
Multi-touch
Capacitive
Multi-touch
Dragontrail glass
2.5D curved glass screen
LTPS (Low Temperature PolySilicon)
2.5D curved glass screen
Full Lamination Technology
2.5D curved glass screen
1000:1 contrast ratio
450 cd/m²
72% NTSC

Sensors

Different sensors measure different physical quantities and convert them into signals recognizable by the mobile device.

SensorsProximity
Light
Accelerometer
Fingerprint
Proximity
Light
Accelerometer
Fingerprint
Proximity
Light
Accelerometer
Gyroscope
Fingerprint
--Fingerprint sensor model - Fingerprint Cards FPC1035

Primary camera

The primary camera of the mobile device is usually placed at its back and is used for taking photos and recording videos.

Sensor modelGalaxyCore GC8024SK Hynix Hi-841 (YACG4A1C)-
Sensor typeCMOS BSICMOSCMOS
Sensor size3.67 x 2.76 mm
0.18 in
3.66 x 2.74 mm
0.18 in
-
Pixel size1.124 µm
0.001124 mm
1.12 µm
0.00112 mm
-
Crop factor9.429.47-
Aperturef/2.4f/2.2f/2
Focal length3.5 mm
32.98 mm *(35 mm / full frame)
-3.57 mm
Flash typeLEDDual LEDLED
Image resolution3264 x 2448 pixels
7.99 MP
3264 x 2448 pixels
7.99 MP
4160 x 3120 pixels
12.98 MP
Video resolution1920 x 1080 pixels
2.07 MP
1280 x 720 pixels
0.92 MP
1920 x 1080 pixels
2.07 MP
Video FPS30 fps30 fps30 fps
FeaturesAutofocus
Continuous shooting
Digital zoom
Geotagging
Panorama
HDR
Touch focus
Face detection
White balance settings
ISO settings
Exposure compensation
Scene mode
Autofocus
Continuous shooting
Digital zoom
Geotagging
Panorama
HDR
Touch focus
Face detection
White balance settings
ISO settings
Exposure compensation
Self-timer
Scene mode
Autofocus
Continuous shooting
Digital zoom
Geotagging
Panorama
HDR
Touch focus
Face detection
White balance settings
ISO settings
Exposure compensation
Self-timer
Scene mode
Interpolated resolution - 13 MP5-element lens
Interpolated resolution - 13 MP
Secondary rear camera - 5 MP (interpolated from 0.3 MP)
Phase detection
5-element lens

Secondary camera

Secondary cameras are placed above the screen of the device and are usually used for video calls, gesture recognition, etc.

Sensor modelGalaxyCore GC2385GalaxyCore GC2365-
Sensor typeCMOSCMOSCMOS
Sensor size-2.64 x 1.98 mm
0.13 in
-
Pixel size-1.65 µm
0.00165 mm
-
Crop factor-13.11-
Aperturef/2.8-f/2.2
Focal length3.5 mm-2.64 mm
Flash typeLEDLED-
Image resolution1600 x 1200 pixels
1.92 MP
1600 x 1200 pixels
1.92 MP
2592 x 1944 pixels
5.04 MP
Video resolution640 x 480 pixels
0.31 MP
640 x 480 pixels
0.31 MP
1280 x 720 pixels
0.92 MP
Video FPS30 fps30 fps30 fps
Interpolated resolution - 5 MPInterpolated resolution - 5 MP-

Audio

Information about the type of speakers and the audio technologies supported by the device.

SpeakerLoudspeaker
Earpiece
LoudspeakerLoudspeaker
Earpiece

Radio

The radio in a mobile device is a built-in FM radio receiver.

RadioYesYesYes

Tracking/Positioning

Information about the positioning and navigation technologies supported by the device.

Tracking/PositioningGPS
A-GPS
GLONASS
GPS
A-GPS
GPS
A-GPS
GLONASS
BeiDou

Wi-Fi

Wi-Fi is a technology that provides wireless data connections between various devices within a short range.

Wi-Fi802.11a
802.11b
802.11g
802.11n
Wi-Fi Hotspot
802.11b
802.11g
802.11n
Wi-Fi Hotspot
802.11b
802.11g
802.11n
Wi-Fi Hotspot
Wi-Fi Direct

Bluetooth

Bluetooth is a standard for secure wireless data transfer between different types of devices over short distances.

Version4.04.04.2
FeaturesA2DPA2DPA2DP
HID

USB

The Universal Serial Bus (USB) is an industry standard that allows different electronic devices to exchange data.

Connector typeMicro USBMicro USBMicro USB
Version2.02.02.0
FeaturesCharging
Mass storage
Charging
Mass storage
On-The-Go
Charging
Mass storage

Headphone jack

The headphone jack is an audio phone connector, a.k.a. an audio jack. The most widely used one in mobile devices is the 3.5 mm headphone jack.

Headphone jackYesYesYes

Connectivity

Information about other important connectivity technologies supported by the devices.

ConnectivityComputer sync
OTA sync
Tethering
Computer sync
OTA sync
Tethering
Computer sync
OTA sync
Infrared
Tethering
VoLTE

Browser

A web browser is a software application for accessing, fetching, displaying and navigating through information on the World Wide Web.

BrowserHTML
HTML5
CSS 3
HTML
HTML5
CSS 3
HTML
HTML5
CSS 3

Audio file formats/codecs

Mobile devices support various audio file formats and codecs, which respectively store and code/decode digital audio data.

Audio file formats/codecsAAC
AMR
eAAC+
FLAC
MIDI
MP3
OGG
WMA
WAV
AAC
AMR
eAAC+
FLAC
MIDI
MP3
OGG
WMA
WAV
AAC
AC3
AMR
eAAC+
FLAC
MIDI
MP3
OGG
WMA
WAV

Video file formats/codecs

Mobile devices support various video file formats and codecs, which respectively store and code/decode digital video data.

Video file formats/codecs3GPP
AVI
MP4
Xvid
3GPP
AVI
MP4
WebM
WMV
Xvid
3GPP
AVI
H.263
H.264
MKV
MP4
VC-1
VP8
Xvid

Battery

The batteries of mobile devices differ in capacity and technology. They provide the electrical charge needed for the functioning of the devices.

Capacity3000 mAh3000 mAh4100 mAh
TypeLi-IonLi-PolymerLi-Polymer
2G talk time-13 h
780 min
0.5 days
36 h
2160 min
1.5 days
2G stand-by time--432 h
25920 min
18 days
3G talk time-13 h
780 min
0.5 days
18 h
1080 min
0.8 days
3G stand-by time--432 h
25920 min
18 days
4G stand-by time--432 h
25920 min
18 days
Charger output power5 V / 1 A-5 V / 2 A
FeaturesRemovableRemovableNon-removable

Specific Absorption Rate (SAR)

The SAR rating shows the amount of electromagnetic radiation absorbed by the human body when using a mobile device, expressed in W/kg.

Head SAR (EU)--0.583 W/kg
Body SAR (EU)--1.5 W/kg
Head SAR (USA)--0.75 W/kg
Body SAR (USA)--0.612 W/kg
 Oukitel C8Ulefone S8 ProXiaomi Redmi 4X