Comparison between:
- Xiaomi Redmi S2
- Xiaomi Redmi 5A
- Xiaomi Redmi Note 5A Standard Edition
- iOcean X7s Elite

Brand and model

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

Xiaomi Redmi S2Xiaomi Redmi 5AXiaomi Redmi Note 5A Standard EditioniOcean X7s Elite
Xiaomi Redmi S2
Prices
Xiaomi Redmi 5A
Prices
Xiaomi Redmi Note 5A Standard Edition
Prices
iOcean X7s Elite
Model alias-Hongmi 5A
Red Rise 5A
Redmi Rise Note 5A Standard
Hongmi Rice 5A Standard
-

Design

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

Width77.26 mm
7.726 cm
0.253 ft
3.042 in
70.1 mm
7.01 cm
0.23 ft
2.76 in
76.2 mm
7.62 cm
0.25 ft
3 in
69 mm
6.9 cm
0.226 ft
2.717 in
Height160.73 mm
16.073 cm
0.527 ft
6.328 in
140.4 mm
14.04 cm
0.461 ft
5.528 in
153 mm
15.3 cm
0.502 ft
6.024 in
141 mm
14.1 cm
0.463 ft
5.551 in
Thickness8.1 mm
0.81 cm
0.027 ft
0.319 in
8.35 mm
0.835 cm
0.027 ft
0.329 in
7.55 mm
0.755 cm
0.025 ft
0.297 in
8.95 mm
0.895 cm
0.029 ft
0.352 in
Weight170 g
0.37 lbs
6 oz
137 g
0.3 lbs
4.83 oz
150 g
0.33 lbs
5.29 oz
150 g
0.33 lbs
5.29 oz
Volume100.59 cm³
6.11 in³
82.18 cm³
4.99 in³
88.02 cm³
5.35 in³
87.07 cm³
5.29 in³
ColorsGold
Silver
Rose-gold
Gold
Rose-gold
Gray
Silver
Rose-gold
Gold
Blue
Black
White
Body materialsPlasticPlasticAluminium alloy
Plastic
-

SIM card

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

SIM card typeNano-SIMNano-SIM
Nano-SIM / microSD
Nano-SIMMini-SIM
Micro-SIM
Number of SIM cards2222
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)Dual SIM stand-by (Both cards are active. When one is busy, the other is not active)
-Two dedicated Nano-SIM slots (India)--

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
GSM 850 MHz
GSM 900 MHz
GSM 1800 MHz
GSM 1900 MHz
CDMACDMA 800 MHzCDMA 800 MHzCDMA 800 MHz-
W-CDMA--W-CDMA 850 MHz
W-CDMA 900 MHz
W-CDMA 1900 MHz
W-CDMA 2100 MHz
W-CDMA 900 MHz
W-CDMA 2100 MHz
TD-SCDMATD-SCDMA 1880-1920 MHz
TD-SCDMA 2010-2025 MHz
TD-SCDMA 1880-1920 MHz
TD-SCDMA 2010-2025 MHz
TD-SCDMA 1880-1920 MHz
TD-SCDMA 2010-2025 MHz
-
UMTSUMTS 850 MHz
UMTS 900 MHz
UMTS 1900 MHz
UMTS 2100 MHz
UMTS 850 MHz
UMTS 900 MHz
UMTS 1900 MHz
UMTS 2100 MHz
--
LTELTE 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)
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)
LTE-TDD 1900 MHz (B39)
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 2600 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 Cat 6
EV-DO Rev. A
TD-SCDMA
TD-HSDPA
UMTS
EDGE
GPRS
HSPA+
LTE Cat 4
EV-DO Rev. A
TD-SCDMA
TD-HSDPA
UMTS
EDGE
GPRS
HSPA+
LTE Cat 4
EV-DO Rev. A
TD-SCDMA
TD-HSDPA
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)MIUI V9.5 (Android 8.1 Oreo)
MIUI (Android 9.0 Pie)
MIUI V9 (Android 7.1 Nougat)
MIUI V10
MIUI V8.5.1 (Android 7.1.1 Nougat)
MIUI V9 (Android 7.1.2 Nougat)
MIUI V10.2 (Android 7.1.2 Nougat)
Android 4.2.2 Jelly Bean

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 625 MSM8953Qualcomm Snapdragon 425 MSM8917Qualcomm Snapdragon 425 MSM8917MediaTek MT6592
Process technology14 nm28 nm28 nm28 nm
CPUARM Cortex-A53ARM Cortex-A53ARM Cortex-A53ARM Cortex-A7
CPU bits64 bit64 bit64 bit32 bit
Instruction setARMv8ARMv8ARMv8ARMv7
Level 1 cache memory (L1)---32 KB + 32 KB
Level 2 cache memory (L2)---1024 KB
1 MB
CPU cores8448
CPU frequency2000 MHz1400 MHz1400 MHz1700 MHz
GPUQualcomm Adreno 506Qualcomm Adreno 308Qualcomm Adreno 308ARM Mali-450 MP4
GPU cores---4
GPU frequency650 MHz500 MHz500 MHz700 MHz
RAM capacity3 GB
4 GB
2 GB
3 GB
2 GB2 GB
RAM typeLPDDR3LPDDR3LPDDR3LPDDR2
RAM channelsSingle channelSingle channelSingle channel-
RAM frequency933 MHz667 MHz667 MHz533 MHz

Storage

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

Storage32 GB
64 GB
16 GB
32 GB
16 GB16 GB
--eMMC-

Memory cards

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

TypesmicroSD
microSDHC
microSDXC
microSD
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/technologyIPSIPSIPSIPS
Diagonal size5.99 in
152.15 mm
15.21 cm
5 in
127 mm
12.7 cm
5.5 in
139.7 mm
13.97 cm
5 in
127 mm
12.7 cm
Width2.68 in
68.04 mm
6.8 cm
2.45 in
62.26 mm
6.23 cm
2.7 in
68.49 mm
6.85 cm
2.45 in
62.26 mm
6.23 cm
Height5.36 in
136.08 mm
13.61 cm
4.36 in
110.69 mm
11.07 cm
4.79 in
121.76 mm
12.18 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
1.778:1
16:9
Resolution720 x 1440 pixels720 x 1280 pixels720 x 1280 pixels1080 x 1920 pixels
Pixel density269 ppi
105 ppcm
294 ppi
115 ppcm
267 ppi
104 ppcm
441 ppi
173 ppcm
Color depth24 bit
16777216 colors
24 bit
16777216 colors
24 bit
16777216 colors
24 bit
16777216 colors
Display area74.8 %70.25 %71.76 %71.07 %
Other featuresCapacitive
Multi-touch
Capacitive
Multi-touch
Capacitive
Multi-touch
Scratch resistant
Capacitive
Multi-touch
1000:1 contrast ratio
450 cd/m²
70.8 % NTSC
1000:1 contrast ratio
72% NTSC
Corning Gorilla Glass 3
2.5D curved glass screen
1000:1 contrast ratio
450 cd/m²
70% NTSC
OGS (One Glass Solution)
Full Lamination Technology

Sensors

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

SensorsProximity
Light
Accelerometer
Compass
Gyroscope
Fingerprint
Proximity
Light
Accelerometer
Proximity
Light
Accelerometer
Compass
Gyroscope
Fingerprint
Hall
Proximity
Light
Accelerometer
Compass
Gyroscope
Gravity
Fingerprint sensor model - Fingerprint Cards FPC1028-Fingerprint sensor model - Fingerprint Cards FPC1035-

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-Samsung S5K3L8Sony Exmor RS
Sensor typeCMOSCMOSISOCELLCMOS
Sensor size--4.69 x 3.52 mm
0.23 in
-
Sensor format1/2.9"---
Pixel size1.25 µm
0.001250 mm
-1.127 µm
0.001127 mm
-
Crop factor--7.38-
ISO100 - 3200-100 - 1600-
Aperturef/2.2f/2.2f/2.2f/2.2
Focal length and 35 mm equivalent3.84 mm---
Number of lenses55--
Flash typeLEDLEDLEDLED
Image resolution4000 x 3000 pixels
12 MP
4160 x 3120 pixels
12.98 MP
4160 x 3120 pixels
12.98 MP
4096 x 3072 pixels
12.58 MP
Video resolution1920 x 1080 pixels
2.07 MP
1920 x 1080 pixels
2.07 MP
1920 x 1080 pixels
2.07 MP
1920 x 1080 pixels
2.07 MP
Video FPS30 fps30 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
Self-timer
Scene mode
Phase detection autofocus (PDAF)
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
Phase detection autofocus (PDAF)
Autofocus
Continuous shooting
Geotagging
HDR
Touch focus
Face detection
ISO settings
Secondary rear camera - 5 MP
Sensor model - Samsung S5K5E8 (#2)
Sensor type - CMOS BSI (#2)
Sensor size - 2.9 x 2.15 mm (#2)
Pixel size - 1.12 μm (#2)
---

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.

Sensor modelSamsung S5K3P8SP-Samsung S5K5E8-
Sensor typeISOCELL-CMOS BSI-
Sensor size--2.9 x 2.15 mm
0.14 in
-
Sensor format1/3.1"---
Pixel size1 µm
0.001000 mm
-1.119 µm
0.001119 mm
-
Crop factor--11.99-
Aperturef/2f/2f/2-
Focal length and 35 mm equivalent3.52 mm---
Auxiliary lightLED---
Image resolution4608 x 3456 pixels
15.93 MP
2592 x 1944 pixels
5.04 MP
2592 x 1944 pixels
5.04 MP
2560 x 1920 pixels
4.92 MP
Video resolution1920 x 1080 pixels
2.07 MP
1920 x 1080 pixels
2.07 MP
1280 x 720 pixels
0.92 MP
1920 x 1080 pixels
2.07 MP
Video FPS30 fps30 fps30 fps30 fps
FeaturesFace unlock---

Audio

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

SpeakerLoudspeaker
Earpiece
Loudspeaker
Earpiece
Loudspeaker
Earpiece
Loudspeaker
Earpiece

Radio

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

RadioYesYesYesYes

Tracking/Positioning

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

Tracking/PositioningGPS
A-GPS
GLONASS
BeiDou
GPS
A-GPS
GLONASS
BeiDou
GPS
A-GPS
GLONASS
BeiDou
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
Wi-Fi Display
802.11b
802.11g
802.11n
Wi-Fi Hotspot
Wi-Fi Direct
Wi-Fi Display
802.11a
802.11b
802.11g
802.11n
Wi-Fi Hotspot
Wi-Fi Direct
Wi-Fi Display
802.11b
802.11g
802.11n
Wi-Fi Hotspot
Wi-Fi Direct
Wi-Fi Display

Bluetooth

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

Version4.24.14.24.0
FeaturesA2DP
HID
A2DP
HID
A2DP
HID
LE
A2DP

USB

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

Connector typeMicro USBMicro USBMicro USBMicro USB
Version2.02.02.02.0
FeaturesCharging
Host
Mass storage
On-The-Go
Charging
Host
Mass storage
On-The-Go
Charging
Host
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 jackYesYesYesYes

Connectivity

Information about other important connectivity technologies supported by the devices.

ConnectivityComputer sync
OTA sync
Infrared
Tethering
VoLTE
Computer sync
OTA sync
Infrared
Tethering
VoLTE
Computer sync
OTA sync
Infrared
Tethering
VoLTE
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
HTML
HTML5
CSS 3
HTML
HTML5

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+
AC3
AMR
eAAC+
FLAC
MIDI
MP3
OGG
WMA
WAV
AAC
AC3
AMR
eAAC+
FLAC
MIDI
MP3
OGG
WMA
WAV
AAC
AAC+
AMR
AMR-WB
eAAC+
FLAC
MIDI
MP3
OGG
WMA
WAV
AMR
AMR-WB
FLAC
MIDI
MP3
OGG
RealAudio
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
VC-1
VP8
Xvid
3GPP
AVI
H.263
H.264
MKV
MP4
VC-1
VP8
Xvid
3GPP
AVI
H.263
H.264
H.265
MKV
QuickTime
VC-1
Xvid
3GPP
AVI
Flash Video
MKV
QuickTime
MPEG-4
WMV
ASF
RMVB

Battery

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

Capacity3080 mAh3000 mAh3080 mAh2000 mAh
TypeLi-PolymerLi-PolymerLi-PolymerLi-Ion
2G talk time--35 h
2100 min
1.5 days
15 h
900 min
0.6 days
2G stand-by time--264 h
15840 min
11 days
500 h
30000 min
20.8 days
3G talk time--35 h
2100 min
1.5 days
15 h
900 min
0.6 days
3G stand-by time--264 h
15840 min
11 days
500 h
30000 min
20.8 days
Charger output power5 V / 2 A5 V / 1 A5 V / 2 A-
FeaturesNon-removableNon-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)0.429 W/kg0.53 W/kg0.66 W/kg-
Body SAR (EU)1.577 W/kg1.234 W/kg1.74 W/kg-
Head SAR (USA)0.89 W/kg1.072 W/kg1.01 W/kg-
Body SAR (USA)1.43 W/kg0.91 W/kg1.04 W/kg-
 Xiaomi Redmi S2Xiaomi Redmi 5AXiaomi Redmi Note 5A Standard EditioniOcean X7s Elite