Comparison between:
- Xiaomi Redmi 7A
- Asus ZenFone 2E
- Sony Xperia SX

Brand and model

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

Xiaomi Redmi 7AAsus ZenFone 2ESony Xperia SX
Xiaomi Redmi 7A
Prices
Asus ZenFone 2ESony Xperia SX
Model alias-U500SO-05D

Design

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

Width70.41 mm
7.041 cm
0.231 ft
2.772 in
71.4 mm
7.14 cm
0.234 ft
2.811 in
54 mm
5.4 cm
0.177 ft
2.126 in
Height146.3 mm
14.63 cm
0.48 ft
5.76 in
148.1 mm
14.81 cm
0.486 ft
5.831 in
115 mm
11.5 cm
0.377 ft
4.528 in
Thickness9.55 mm
0.955 cm
0.031 ft
0.376 in
10.9 mm
1.09 cm
0.036 ft
0.429 in
9.4 mm
0.94 cm
0.031 ft
0.37 in
Weight165 g
0.36 lbs
5.82 oz
155 g
0.34 lbs
5.47 oz
95 g
0.21 lbs
3.35 oz
Volume98.37 cm³
5.97 in³
115.26 cm³
7 in³
58.37 cm³
3.55 in³
ColorsBlack
Blue
Black
White
-
Body materialsPolycarbonate--

SIM card

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

SIM card typeNano-SIMMicro-SIMMicro-SIM
Number of SIM cards211
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
GSM 850 MHz
GSM 900 MHz
GSM 1800 MHz
GSM 1900 MHz
CDMACDMA 800 MHz--
W-CDMAW-CDMA 850 MHz
W-CDMA 900 MHz
W-CDMA 2100 MHz
--
TD-SCDMATD-SCDMA 1900 MHz
TD-SCDMA 2000 MHz
--
UMTS-UMTS 850 MHz
UMTS 900 MHz
UMTS 1900 MHz
UMTS 2100 MHz
UMTS 800 MHz
UMTS 2100 MHz
LTELTE-TDD 1900 MHz (B39)
LTE-TDD 2000 MHz (B34)
LTE-TDD 2300 MHz (B40)
LTE-TDD 2500 MHz (B41)
LTE-TDD 2600 MHz (B38)
LTE 850 MHz
LTE 900 MHz
LTE 1800 MHz
LTE 2100 MHz
LTE 700 MHz Class 17
LTE 800 MHz
LTE 850 MHz
LTE 1800 MHz
LTE 1900 MHz
LTE 2600 MHz
LTE 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+
LTE
EV-DO Rev. A
TD-SCDMA
TD-HSDPA
UMTS
EDGE
GPRS Class 12
HSPA+
LTE Cat 3
UMTS
EDGE
GPRS Class 12
HSPA
LTE Cat 3

Operating system

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

Operating system (OS)MIUI V10.2 (Android 9.0 Pie)
MIUI V11.0.1 (Android 10)
Android 5.0.1 LollipopAndroid 4.0.4 Ice Cream Sandwich
User interface (UI)-ZenUI-

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.

SoCQualcomm Snapdragon 439Intel Atom Z2560Qualcomm Snapdragon S4 Plus MSM8960
Process technology12 nm32 nm28 nm
CPU4x 1.95 GHz ARM Cortex-A53, 4x 1.45 GHz ARM Cortex-A53Intel Clover Trail+Krait
CPU bits64 bit32 bit32 bit
Instruction setARMv8IA-32 (x86)ARMv7
Level 0 cache memory (L0)--4 KB + 4 KB
Level 1 cache memory (L1)-24 KB + 32 KB16 KB + 16 KB
Level 2 cache memory (L2)-512 KB
0.5 MB
1024 KB
1 MB
CPU cores822
CPU frequency1950 MHz1600 MHz1500 MHz
GPUQualcomm Adreno 505PowerVR SGX544 MP2Qualcomm Adreno 225
GPU cores-2-
GPU frequency-400 MHz-
RAM capacity2 GB
3 GB
1 GB1 GB
RAM typeLPDDR3LPDDR3LPDDR2
RAM channelsSingle channelDouble channelDouble channel
RAM frequency-533 MHz500 MHz

Storage

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

Storage16 GB
32 GB
8 GB4 GB

Memory cards

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

TypesmicroSD
microSDHC
microSDXC
microSD
microSDHC
microSDXC
microSD
microSDHC

Display

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

Type/technologyIPSIPSLCD
Diagonal size5.45 in
138.43 mm
13.84 cm
5 in
127 mm
12.7 cm
3.7 in
93.98 mm
9.4 cm
Width2.44 in
61.91 mm
6.19 cm
2.45 in
62.26 mm
6.23 cm
1.81 in
46.07 mm
4.61 cm
Height4.87 in
123.82 mm
12.38 cm
4.36 in
110.69 mm
11.07 cm
3.22 in
81.91 mm
8.19 cm
Aspect ratio2:1
2:1 (18:9)
1.778:1
16:9
1.778:1
16:9
Resolution720 x 1440 pixels720 x 1280 pixels540 x 960 pixels
Pixel density295 ppi
115 ppcm
294 ppi
115 ppcm
298 ppi
117 ppcm
Color depth24 bit
16777216 colors
24 bit
16777216 colors
24 bit
16777216 colors
Display area74.65 %65.39 %60.97 %
Other featuresCapacitive
Multi-touch
Capacitive
Multi-touch
Scratch resistant
Capacitive
Multi-touch
Scratch resistant
2.5D curved glass screen
1000:1 contrast ratio
70.8% NTSC
Corning Gorilla Glass 3
Full Lamination Technology
LED-backlit
Shatter proof sheet on scratch-resistant glass

Sensors

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

SensorsProximity
Light
Accelerometer
Compass
Proximity
Light
Accelerometer
Compass
Proximity
Light
Accelerometer
Compass
Gyroscope

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 modelSony IMX486 Exmor RS-Sony Exmor R
Sensor typeCMOSCMOSCMOS BSI
Sensor format1/2.9"--
Pixel size1.25 µm
0.001250 mm
--
Aperturef/2.2f/2-
Number of lenses-5-
Flash typeDual LEDLEDLED
Image resolution4160 x 3120 pixels
12.98 MP
3264 x 2448 pixels
7.99 MP
3264 x 2448 pixels
7.99 MP
Video resolution1920 x 1080 pixels
2.07 MP
1920 x 1080 pixels
2.07 MP
1920 x 1080 pixels
2.07 MP
Video FPS30 fps30 fps30 fps
FeaturesAutofocus
Continuous shooting
Digital zoom
Optical zoom
Digital image stabilization
Geotagging
Panorama
HDR
Touch focus
Face detection
White balance settings
ISO settings
Exposure compensation
Self-timer
Scene mode
Macro mode
Phase detection autofocus (PDAF)
Autofocus
Continuous shooting
Digital zoom
Digital image stabilization
Geotagging
Panorama
HDR
Touch focus
Face detection
White balance settings
ISO settings
Exposure compensation
Scene mode
Autofocus
Optical zoom
Digital image stabilization
Geotagging
Panorama
Touch focus
Self-timer

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 resolution2592 x 1944 pixels
5.04 MP
1600 x 1200 pixels
1.92 MP
-
Video resolution1920 x 1080 pixels
2.07 MP
1280 x 720 pixels
0.92 MP
640 x 480 pixels
0.31 MP
Video FPS30 fps30 fps-
FeaturesFace unlock--
--0.3 MP

Audio

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

SpeakerLoudspeaker
Earpiece
Loudspeaker
Earpiece
Loudspeaker
Earpiece

Radio

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

RadioYesYesYes
--RDS

Tracking/Positioning

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

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

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
Wi-Fi Display
802.11a
802.11b
802.11g
802.11n
Wi-Fi Hotspot
802.11a
802.11b
802.11g
802.11n
Dual band
Wi-Fi Hotspot
Wi-Fi Direct

Bluetooth

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

Version4.24.03.1
FeaturesA2DP
LE
A2DP
EDR
A2DP
AVRCP
HFP
HID
HSP
OPP
PAN
PBAP
SPP

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

HDMI

The High-Definition Multimedia Interface (HDMI) is considered to be the digital alternative of the analog audio/video interface standards.

HDMI--Micro USB to HDMI MHL adapter

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
VoLTE
Computer sync
OTA sync
Tethering
Computer sync
OTA sync
Infrared
Tethering
DLNA

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
Flash

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
AAC+
AMR
AMR-WB
eAAC+
FLAC
MIDI
MP3
OGG
WMA
WAV
AAC
AMR
eAAC+
MIDI
MP3
WMA
WAV
AAC
AAC+
AMR
AMR-WB
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
DivX
H.263
H.264
H.265
MKV
MP4
VC-1
Xvid
3GPP
AVI
H.263
H.264
MP4
VP8
VP9
WMV
H.263
H.264
MPEG-4
VP8

Battery

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

Capacity4000 mAh2500 mAh1500 mAh
TypeLi-PolymerLi-PolymerLi-Ion
2G talk time25 h
1500 min
1 days
19 h
1140 min
0.8 days
6 h
360 min
0.3 days
2G stand-by time-300 h
18000 min
12.5 days
280 h
16800 min
11.7 days
3G talk time25 h
1500 min
1 days
19 h
1140 min
0.8 days
5 h 50 min
5.8 h
349.8 min
0.2 days
3G stand-by time-300 h
18000 min
12.5 days
360 h
21600 min
15 days
Charger output power5 V / 2 A--
FeaturesNon-removableNon-removableRemovable

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)0.557 W/kg--
Body SAR (EU)1.166 W/kg--
Head SAR (USA)1 W/kg--
Body SAR (USA)1.12 W/kg1.18 W/kg-

Additional features

Some devices have additional features, different from the standard ones above, but equally important and worth mentioning.

Additional featuresP2i nano-coating--
 Xiaomi Redmi 7AAsus ZenFone 2ESony Xperia SX