Comparison between:
- Kazam Trooper 455
- Kazam Trooper 451

Brand and model

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

Kazam Trooper 455

Kazam Trooper 455

Dimensions: 80.5 x 156 x 9.75 mm
Weight: 190 g
SoC: Spreadtrum SC7731G
CPU: ARM Cortex-A7, 1200 MHz, Cores: 4
GPU: ARM Mali-400 MP2, 400 MHz
RAM: 512 MB
Storage: 4 GB
Display: 5.5 in, IPS, 480 x 854 pixels, 24 bit
Battery: 2800 mAh, Li-Ion
OS: Android 4.4.2 KitKat
Camera: 2560 x 1920 pixels, 1920 x 1080 pixels, 30 fps

Kazam Trooper 451

Kazam Trooper 451

Dimensions: 72.2 x 141.3 x 9.75 mm
Weight: 164 g
SoC: Spreadtrum SC7731G
CPU: ARM Cortex-A7, 1200 MHz, Cores: 4
GPU: ARM Mali-400 MP2, 400 MHz
RAM: 512 MB
Storage: 4 GB
Display: 5 in, IPS, 480 x 854 pixels, 24 bit
Battery: 1800 mAh, Li-Ion
OS: Android 4.4.2 KitKat
Camera: 2560 x 1920 pixels, 1920 x 1080 pixels, 30 fps

Design

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

Width80.5 mm
8.05 cm
0.26 ft
3.17 in
72.2 mm
7.22 cm
0.24 ft
2.84 in
Height156 mm
15.6 cm
0.51 ft
6.14 in
141.3 mm
14.13 cm
0.46 ft
5.56 in
Thickness9.75 mm
0.98 cm
0.03 ft
0.38 in
9.75 mm
0.98 cm
0.03 ft
0.38 in
Weight190 g
0.42 lbs
6.7 oz
164 g
0.36 lbs
5.78 oz
Volume122.44 cm³
7.44 in³
99.47 cm³
6.04 in³
ColorsBlack
White
Black
White
Body materialsPlasticPlastic

SIM card

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

SIM card typeMini-SIMMini-SIM
Number of SIM cards22
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
UMTSUMTS 850 MHz
UMTS 900 MHz
UMTS 2100 MHz
UMTS 900 MHz
UMTS 2100 MHz

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+

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 4.4.2 KitKatAndroid 4.4.2 KitKat

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.

SoCSpreadtrum SC7731GSpreadtrum SC7731G
Process technology28 nm28 nm
CPUARM Cortex-A7ARM Cortex-A7
CPU bits32 bit32 bit
Instruction setARMv7ARMv7
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 cores44
CPU frequency1200 MHz1200 MHz
GPUARM Mali-400 MP2ARM Mali-400 MP2
GPU cores22
GPU frequency400 MHz400 MHz
RAM capacity512 MB512 MB

Storage

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

Storage4 GB4 GB

Memory cards

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

TypesmicroSD
microSDHC
microSD
microSDHC

Display

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

Type/technologyIPSIPS
Diagonal size5.5 in
139.7 mm
13.97 cm
5 in
127 mm
12.7 cm
Width2.69 in
68.45 mm
6.84 cm
2.45 in
62.23 mm
6.22 cm
Height4.79 in
121.78 mm
12.18 cm
4.36 in
110.71 mm
11.07 cm
Aspect ratio1.779:11.779:1
Resolution480 x 854 pixels480 x 854 pixels
Pixel density178 ppi
69 ppcm
196 ppi
77 ppcm
Color depth24 bit
16777216 colors
24 bit
16777216 colors
Display area66.59 %67.75 %
Other featuresCapacitive
Multi-touch
Scratch resistant
Capacitive
Multi-touch
Dragontrail glass-

Sensors

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

SensorsProximity
Light
Accelerometer
Proximity
Light
Accelerometer

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 typeCMOSCMOS
Flash typeLEDLED
Image resolution2560 x 1920 pixels
4.92 MP
2560 x 1920 pixels
4.92 MP
Video resolution1920 x 1080 pixels
2.07 MP
1920 x 1080 pixels
2.07 MP
Video FPS30 fps30 fps
FeaturesAutofocus
Continuous shooting
Digital zoom
Digital image stabilization
Geotagging
Panorama
HDR
Touch focus
Face detection
White balance settings
ISO settings
Exposure compensation
Scene mode
Autofocus
Digital zoom
Digital image stabilization
Geotagging
Panorama
HDR
Touch focus
Face detection
White balance settings
ISO settings
Exposure compensation
Scene mode

Secondary camera

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

Image resolution640 x 480 pixels
0.31 MP
640 x 480 pixels
0.31 MP
Video resolution640 x 480 pixels
0.31 MP
640 x 480 pixels
0.31 MP

Audio

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

SpeakerLoudspeaker
Earpiece
Loudspeaker
Earpiece

Radio

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

RadioYesYes
RDS-

Tracking/Positioning

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

Tracking/PositioningGPS
A-GPS
GPS
A-GPS

Wi-Fi

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

Wi-Fi802.11b
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.

Version4.04.0
FeaturesA2DPA2DP

USB

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

Connector typeMicro USBMicro USB
Version2.02.0
FeaturesCharging
Mass storage
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 jackYesYes

Connectivity

Information about other important connectivity technologies supported by the devices.

ConnectivityComputer sync
OTA sync
Tethering
Computer sync
OTA sync
Tethering

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

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+
MIDI
MP3
WMA
WAV
AAC
AMR
eAAC+
MIDI
MP3
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
H.263
H.264
MKV
MP4
WMV
3GPP
AVI
H.263
H.264
MP4

Battery

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

Capacity2800 mAh1800 mAh
TypeLi-IonLi-Ion
2G talk time4 h
240 min
0.2 days
4 h
240 min
0.2 days
2G stand-by time240 h
14400 min
10 days
170 h
10200 min
7.1 days
3G talk time4 h
240 min
0.2 days
4 h
240 min
0.2 days
3G stand-by time240 h
14400 min
10 days
170 h
10200 min
7.1 days
FeaturesRemovableRemovable

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)0.231 W/kg0.29 W/kg
Body SAR (EU)0.527 W/kg-