Comparison between:
- Helio S10
- Helio S25
- Xiaomi Redmi Note 5 SD636 China

Brand and model

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

Helio S10Helio S25Xiaomi Redmi Note 5 SD636 China
Helio S10Helio S25Xiaomi Redmi Note 5 SD636 China
Prices
Model alias--Redmi Note 5 AI Dual Camera

Design

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

Width76.5 mm
7.65 cm
0.251 ft
3.012 in
76.4 mm
7.64 cm
0.251 ft
3.008 in
75.4 mm
7.54 cm
0.247 ft
2.969 in
Height154.5 mm
15.45 cm
0.507 ft
6.083 in
154.2 mm
15.42 cm
0.506 ft
6.071 in
158.6 mm
15.86 cm
0.52 ft
6.244 in
Thickness8.3 mm
0.83 cm
0.027 ft
0.327 in
7.4 mm
0.74 cm
0.024 ft
0.291 in
8.05 mm
0.805 cm
0.026 ft
0.317 in
Weight182 g
0.4 lbs
6.42 oz
168 g
0.37 lbs
5.93 oz
181 g
0.4 lbs
6.38 oz
Volume98.1 cm³
5.96 in³
87.18 cm³
5.29 in³
96.27 cm³
5.85 in³
ColorsBlack
Gold
Black
Gold
Black
Gold
Blue
Rose-gold
Body materialsMetalMetalAluminium alloy

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 / microSD
Micro-SIM
Nano-SIM / microSD
Nano-SIM
Nano-SIM / microSD
Nano-SIM
Number of SIM cards222

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 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
LTELTE 800 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 800 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)

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
UMTS
EDGE
GPRS
HSPA+
LTE Cat 6
UMTS
EDGE
GPRS
HSPA+
LTE
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 6.0 MarshmallowMIUI V9.2 (Android 8.0 Oreo)
MIUI (Android 9.0 Pie)

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 Helio P10 (MT6755)MediaTek Helio P10 (MT6755)Qualcomm Snapdragon 636
Process technology28 nm28 nm14 nm
CPU4x 1.95 GHz ARM Cortex-A53, 4x 1.2 GHz ARM Cortex-A534x 1.95 GHz ARM Cortex-A53, 4x 1.2 GHz ARM Cortex-A534x 1.8 GHz Kryo 260, 4x 1.6 GHz Kryo 260
CPU bits64 bit64 bit64 bit
Instruction setARMv8-AARMv8-AARMv8
Level 1 cache memory (L1)256 KB + 256 KB256 KB + 256 KB-
Level 2 cache memory (L2)2048 KB
2 MB
2048 KB
2 MB
-
CPU cores888
CPU frequency1950 MHz1950 MHz1800 MHz
GPUARM Mali-T860 MP2ARM Mali-T860 MP2Qualcomm Adreno 509
GPU cores22-
GPU frequency700 MHz700 MHz-
RAM capacity4 GB4 GB3 GB
4 GB
6 GB
RAM typeLPDDR3LPDDR3LPDDR4X
RAM channelsSingle channelSingle channelDouble channel
RAM frequency933 MHz933 MHz1333 MHz

Storage

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

Storage32 GB64 GB32 GB
64 GB
128 GB
--eMMC 5.1

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
5.5 in
139.7 mm
13.97 cm
5.99 in
152.15 mm
15.21 cm
Width2.7 in
68.49 mm
6.85 cm
2.7 in
68.49 mm
6.85 cm
2.68 in
68.04 mm
6.8 cm
Height4.79 in
121.76 mm
12.18 cm
4.79 in
121.76 mm
12.18 cm
5.36 in
136.08 mm
13.61 cm
Aspect ratio1.778:1
16:9
1.778:1
16:9
2:1
2:1 (18:9)
Resolution1080 x 1920 pixels1080 x 1920 pixels1080 x 2160 pixels
Pixel density401 ppi
157 ppcm
401 ppi
157 ppcm
403 ppi
158 ppcm
Color depth24 bit
16777216 colors
24 bit
16777216 colors
24 bit
16777216 colors
Display area70.78 %71.01 %77.68 %
Other featuresCapacitive
Multi-touch
Scratch resistant
Capacitive
Multi-touch
Scratch resistant
Capacitive
Multi-touch
Scratch resistant
Corning Gorilla Glass 3
2.5D curved glass screen
Corning Gorilla Glass 3
LTPS (Low Temperature PolySilicon)
Corning Gorilla Glass
2.5D curved glass screen
1000:1 contrast ratio
450 cd/m²
84% NTSC

Sensors

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

SensorsProximity
Light
Accelerometer
Compass
Gyroscope
Fingerprint
Hall
Proximity
Light
Accelerometer
Compass
Gyroscope
Fingerprint
Hall
Proximity
Light
Accelerometer
Compass
Gyroscope
Fingerprint
Hall

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 IMX258 Exmor RSSony Exmor RSSamsung S5K2L7
Sensor typeCMOSCMOSISOCELL
Sensor size4.71 x 3.49 mm
0.23 in
4.71 x 3.49 mm
0.23 in
-
Sensor format--1/2.56"
Pixel size1.133 µm
0.001133 mm
1.133 µm
0.001133 mm
1.4 µm
0.001400 mm
Crop factor7.377.37-
Aperturef/2f/2f/1.9
Focal length and 35 mm equivalent--3.81 mm
Number of lenses55-
Flash typeDual LEDDual LEDDual LED
Image resolution4160 x 3120 pixels
12.98 MP
4160 x 3120 pixels
12.98 MP
4000 x 3000 pixels
12 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
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
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
Phase detection autofocus (PDAF)
-Secondary rear camera - 5 MP
Aperture size - f/2.2 (#2)
Phase detection with Dual Pixel
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)
Aperture size - f/2.0 (#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 S5K3P3SamsungOmniVision OV13855
Sensor typeISOCELLISOCELLPureCel
Sensor size4.74 x 3.56 mm
0.23 in
4.69 x 3.52 mm
0.23 in
4.75 x 3.54 mm
0.23 in
Pixel size1.029 µm
0.001029 mm
1.127 µm
0.001127 mm
1.142 µm
0.001142 mm
Crop factor7.297.387.31
Aperturef/2f/2.2-
Auxiliary lightLEDLEDLED
Image resolution4608 x 3456 pixels
15.93 MP
4160 x 3120 pixels
12.98 MP
4160 x 3120 pixels
12.98 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
Features--Face unlock

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

Tracking/Positioning

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

Tracking/PositioningGPS
A-GPS
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
802.11n 5GHz
Dual band
Wi-Fi Hotspot
802.11a
802.11b
802.11g
802.11n
802.11n 5GHz
Dual band
Wi-Fi Hotspot
802.11a
802.11b
802.11g
802.11n
802.11n 5GHz
802.11ac
Dual band
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.

Version4.04.05.0
FeaturesA2DPA2DPA2DP
EDR
HID
LE

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
On-The-Go
Charging
Mass storage
On-The-Go
Charging
Host
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 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
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
AAC+
AMR
eAAC+
FLAC
M4A
MIDI
MP3
OGG
WMA
WAV
AAC
AAC+
AMR
eAAC+
FLAC
M4A
MIDI
MP3
OGG
WMA
WAV
AAC
AAC+
AMR
AMR-WB
aptX
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
H.263
H.264
H.265
MKV
MP4
WebM
WMV
Xvid
3GPP
AVI
H.263
H.264
H.265
MKV
MP4
WebM
WMV
Xvid
3GPP
AVI
DivX
H.263
H.264
H.265
MKV
QuickTime
MP4
VC-1
WebM
WMV
Xvid

Battery

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

Capacity4010 mAh3000 mAh4000 mAh
TypeLi-PolymerLi-PolymerLi-Polymer
2G talk time42 h
2520 min
1.8 days
20 h
1200 min
0.8 days
23 h
1380 min
1 days
2G stand-by time600 h
36000 min
25 days
250 h
15000 min
10.4 days
-
3G talk time22 h
1320 min
0.9 days
16 h
960 min
0.7 days
23 h
1380 min
1 days
3G stand-by time560 h
33600 min
23.3 days
209 h
12540 min
8.7 days
-
4G talk time16 h
960 min
0.7 days
11 h
660 min
0.5 days
-
4G stand-by time350 h
21000 min
14.6 days
199 h
11940 min
8.3 days
-
Charger output power9 V / 1.8 A5 V / 2 A5 V / 2 A
Quick charge technology--Qualcomm Quick Charge 2.0
FeaturesFast charging
Non-removable
Non-removableFast charging
Non-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)--1.29 W/kg
Body SAR (EU)--1.24 W/kg
Head SAR (USA)--1.03 W/kg
Body SAR (USA)--0.79 W/kg
 Helio S10Helio S25Xiaomi Redmi Note 5 SD636 China