Comparison between:
- Sigma Mobile X-style Tab A104
- Sigma Mobile X-style Tab A83

Brand and model

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

Sigma Mobile X-style Tab A104Sigma Mobile X-style Tab A83
Sigma Mobile X-style Tab A104Sigma Mobile X-style Tab A83
Model aliasA104A83

Design

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

Width261 mm
26.1 cm
0.856 ft
10.276 in
207 mm
20.7 cm
0.679 ft
8.15 in
Height161 mm
16.1 cm
0.528 ft
6.339 in
123 mm
12.3 cm
0.404 ft
4.843 in
Thickness10 mm
1 cm
0.033 ft
0.394 in
9 mm
0.9 cm
0.03 ft
0.354 in
Weight604 g
1.33 lbs
21.31 oz
360 g
0.79 lbs
12.7 oz
Volume420.21 cm³
25.52 in³
229.15 cm³
13.92 in³
ColorsBlack
Silver
Black
Gray
Body materialsPlastic
Metal
Plastic
Metal

SIM card

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

SIM card typeMini-SIMMicro-SIM
Number of SIM cards21
FeaturesDual 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 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 8.1 OreoAndroid 8.1 Oreo

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 MT8321MediaTek MT8321
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)256 KB
0.25 MB
256 KB
0.25 MB
CPU cores44
CPU frequency1300 MHz1300 MHz
GPUARM Mali-400 MP2ARM Mali-400 MP2
GPU cores22
GPU frequency500 MHz500 MHz
RAM capacity2 GB2 GB
RAM typeLPDDR3LPDDR3

Storage

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

Storage16 GB16 GB

Memory cards

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

TypesmicroSD
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/technologyIPSIPS
Diagonal size10.1 in
256.54 mm
25.65 cm
8 in
203.2 mm
20.32 cm
Width8.56 in
217.55 mm
21.75 cm
6.78 in
172.31 mm
17.23 cm
Height5.35 in
135.97 mm
13.6 cm
4.24 in
107.7 mm
10.77 cm
Aspect ratio1.6:1
16:10
1.6:1
16:10
Resolution1280 x 800 pixels1280 x 800 pixels
Pixel density149 ppi
58 ppcm
189 ppi
74 ppcm
Color depth24 bit
16777216 colors
24 bit
16777216 colors
Display area70.62 %73.12 %
Other featuresCapacitive
Multi-touch
Capacitive
Multi-touch

Sensors

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

SensorsProximity
Light
Accelerometer
Proximity
Light
Accelerometer

Rear camera

The primary camera of the mobile device is usually placed on its back and can be combined with one or more additional cameras.

Sensor typeCMOS BSICMOS BSI
Flash typeLEDLED
Image resolution2592 x 1944 pixels
5.04 MP
2592 x 1944 pixels
5.04 MP
Video resolution1280 x 720 pixels
0.92 MP
1280 x 720 pixels
0.92 MP
Video FPS30 fps30 fps
FeaturesContinuous shooting
Digital zoom
Geotagging
Panorama
HDR
White balance settings
ISO settings
Exposure compensation
Self-timer
Scene mode
Continuous shooting
Digital zoom
Geotagging
Panorama
HDR
White balance settings
ISO settings
Exposure compensation
Self-timer
Scene mode

Front camera

Modern smartphones have one or more front cameras and their positioning has led to various design concepts – pop-up camera, rotating camera, notch, punch hole, under-display camera, etc.

Image resolution1600 x 1200 pixels
1.92 MP
1600 x 1200 pixels
1.92 MP
Video resolution640 x 480 pixels
0.31 MP
640 x 480 pixels
0.31 MP
Video FPS30 fps30 fps

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

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
Wi-Fi Direct
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
FeaturesA2DP
EDR
LE
A2DP
EDR
LE

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
On-The-Go
Charging
Mass storage
On-The-Go

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+
FLAC
MIDI
MP3
OGG
WMA
WAV
AAC
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
MKV
QuickTime
MP4
WebM
Xvid
3GPP
AVI
MKV
QuickTime
MP4
WebM
Xvid

Battery

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

Capacity9000 mAh4000 mAh
TypeLi-PolymerLi-Polymer
FeaturesNon-removableNon-removable
 Sigma Mobile X-style Tab A104Sigma Mobile X-style Tab A83