Comparison between:
- Samsung Galaxy S9+ SD845
- Xiaomi Mi 8 SE

Brand and model

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

Samsung Galaxy S9+ SD845Xiaomi Mi 8 SE
Samsung Galaxy S9+ SD845
Prices
Xiaomi Mi 8 SE
Prices
Model aliasGalaxy S9 Plus SD845
SM-G965D
G965D
SM-G965U
G965U
SM-G965W
G965W
Mi8 SE
Mi8SE

Design

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

Width73.8 mm
7.38 cm
0.24 ft
2.91 in
73.09 mm
7.31 cm
0.24 ft
2.88 in
Height158.1 mm
15.81 cm
0.52 ft
6.22 in
147.28 mm
14.73 cm
0.48 ft
5.8 in
Thickness8.5 mm
0.85 cm
0.03 ft
0.33 in
7.5 mm
0.75 cm
0.02 ft
0.3 in
Weight189 g
0.42 lbs
6.67 oz
164 g
0.36 lbs
5.78 oz
Volume99.18 cm³
6.02 in³
80.74 cm³
4.9 in³
ColorsBlack
Lilac
Gray
Blue
Red
Gold
Black
Blue
Silver
Body materialsGlass
Aluminium alloy
Metal
Glass
CertificationIP68-

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
Number of SIM cards12
FeaturesDual SIM optional (A variant of the model with two SIM card slots is available)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
CDMA-CDMA 800 MHz
W-CDMA-W-CDMA 850 MHz
W-CDMA 900 MHz
W-CDMA 1900 MHz
W-CDMA 2100 MHz
TD-SCDMA-TD-SCDMA 1900 MHz
TD-SCDMA 2000 MHz
UMTSUMTS 850 MHz
UMTS 900 MHz
UMTS 1700/2100 MHz
UMTS 1900 MHz
UMTS 2100 MHz
-
LTELTE 700 MHz Class 13
LTE 700 MHz Class 17
LTE 800 MHz
LTE 850 MHz
LTE 900 MHz
LTE 1700/2100 MHz
LTE 1800 MHz
LTE 1900 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 700 MHz (B12)
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 18
UMTS
EDGE
GPRS
HSPA+
LTE Cat 18
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 8.0 Oreo
Android 9.0 Pie
MIUI V9.5 (Android 8.1 Oreo)
MIUI V10 (Android 8.1 Oreo)
MIUI (Android 9.0 Pie)
User interface (UI)Experience 9.0-

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 845Qualcomm Snapdragon 710
Process technology10 nm10 nm
CPU4x 2.8 GHz Kryo 385, 4x 1.8 GHz Kryo 3852x 2.2 GHz Kryo 360, 6x 1.7 GHz Kryo 360
CPU bits64 bit64 bit
Instruction setARMv8-AARMv8
Level 1 cache memory (L1)32 KB + 32 KB-
Level 2 cache memory (L2)1536 KB
1.5 MB
-
Level 3 cache memory (L3)2048 KB
2 MB
-
CPU cores88
CPU frequency2800 MHz2200 MHz
GPUQualcomm Adreno 630Qualcomm Adreno 616
GPU frequency710 MHz500 MHz
RAM capacity6 GB4 GB
6 GB
RAM typeLPDDR4XLPDDR4X
RAM channelsDouble channelDouble channel
RAM frequency1866 MHz1866 MHz

Storage

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

Storage64 GB
128 GB
256 GB
64 GB
128 GB
UFS 2.1-

Memory cards

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

TypesmicroSD
microSDHC
microSDXC
-

Display

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

Type/technologySuper AMOLEDSuper AMOLED
Diagonal size6.2 in
157.48 mm
15.75 cm
5.88 in
149.35 mm
14.94 cm
Width2.71 in
68.89 mm
6.89 cm
2.55 in
64.77 mm
6.48 cm
Height5.58 in
141.61 mm
14.16 cm
5.3 in
134.58 mm
13.46 cm
Aspect ratio2.056:12.078:1
Resolution1440 x 2960 pixels1080 x 2244 pixels
Pixel density531 ppi
208 ppcm
424 ppi
166 ppcm
Color depth24 bit
16777216 colors
24 bit
16777216 colors
Display area83.88 %81.23 %
Other featuresCapacitive
Multi-touch
Scratch resistant
Capacitive
Multi-touch
Scratch resistant
Corning Gorilla Glass 5
Dual Edge display
Always-On Display
VR headset support
HDR10
Display manufacturer - Samsung
Corning Gorilla Glass 5
2.5D curved glass screen
60000:1 contrast ratio
600 cd/m²

Sensors

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

SensorsProximity
Light
Accelerometer
Compass
Gyroscope
Barometer
Fingerprint
Hall
Heart rate
Iris sensor
Proximity
Light
Accelerometer
Compass
Gyroscope
Fingerprint
Hall
-Fingerprint sensor model - Fingerprint Cards FPC1291

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 modelSony IMX345 Exmor RSSony IMX363 Exmor RS
Sensor typeCMOSCMOS
ISO-100 - 3200
Aperturef/1.5 - 2.4f/1.9
Focal length4.3 mm-
Flash typeDual LEDDual LED
Image resolution4032 x 3024 pixels
12.19 MP
4032 x 3024 pixels
12.19 MP
Video resolution3840 x 2160 pixels
8.29 MP
3840 x 2160 pixels
8.29 MP
Video FPS30 fps30 fps
FeaturesAutofocus
Continuous shooting
Digital zoom
Optical image stabilization
Geotagging
Panorama
HDR
Touch focus
Face detection
White balance settings
ISO settings
Exposure compensation
Self-timer
Scene mode
Autofocus
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
RAW
Sensor size - 1/2.55"
Pixel size - 1.4 μm
Phase detection with Dual Pixel
Object tracking AF
Smart OIS
High CRI LED flash
Focal length (35 mm equivalent) - 26 mm
Wide-angle lens - 77°
2160p @ 60 fps
1080p @ 240 fps
720p @ 960 fps
Secondary rear camera - 12 MP (telephoto)
Pixel size - 1.0 μm (#2)
Aperture size - f/2.4 (#2)
Focal length (35 mm equivalent) - 52 mm (#2)
Sensor size - 1/2.55"
Pixel size - 1.4 μm
Phase detection with Dual Pixel
1080p @ 120 fps
720p @ 240 fps
Secondary rear camera - 5 MP (telephoto)
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)

Secondary camera

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

Sensor modelSony IMX320 Exmor RSSamsung S5K2T7
Sensor typeCMOSISOCELL
Aperturef/1.7f/2
Focal length2.92 mm-
Flash type-LED
Image resolution3264 x 2448 pixels
7.99 MP
5120 x 3840 pixels
19.66 MP
Video resolution2560 x 1440 pixels
3.69 MP
1920 x 1080 pixels
2.07 MP
Video FPS30 fps30 fps
Sensor size - 1/3.6"
Pixel size - 1.22 μm
Focal length (35 mm equivalent) - 25 mm
Wide-angle lens - 80°
Auto HDR
Sensor size - 1/2.8"
Pixel size - 2.0 μm (4-in-1 pixel binning)
Face recognition

Audio

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

SpeakerLoudspeaker
Earpiece
Loudspeaker
Earpiece
384 kHz / 32-bit
Dolby Atmos
Headphone adapter

Radio

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

RadioYesNo

Tracking/Positioning

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

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

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
802.11ac
Dual band
Wi-Fi Hotspot
Wi-Fi Direct
802.11a
802.11b
802.11g
802.11n
802.11n 5GHz
802.11ac
Dual band
Wi-Fi Hotspot
Wi-Fi Direct
Wi-Fi Display
VHT80 MU-MiMO
1024-QAM
2x2 MiMO

Bluetooth

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

Version5.05.0
FeaturesA2DP
AVRCP
DIP
HFP
HID
HSP
LE
MAP
OPP
PAN
PBAP
A2DP
LE

USB

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

Connector typeUSB Type-CUSB Type-C
Version3.12.0
FeaturesCharging
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 jackYesNo

Connectivity

Information about other important connectivity technologies supported by the devices.

ConnectivityComputer sync
OTA sync
Tethering
NFC
ANT+
Computer sync
OTA sync
Infrared
Tethering
DLNA
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

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
aptX
eAAC+
FLAC
M4A
MIDI
MP3
OGG
WMA
WAV
XMF
AAC
AAC+
AMR
AMR-WB
aptX
aptX HD
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
3GPP2
AVI
DivX
Flash Video
H.263
H.264
MKV
MP4
WebM
WMV
Xvid
ASF
3GPP
AVI
DivX
H.263
H.264
H.265
MKV
MP4
VC-1
Xvid

Battery

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

Capacity3500 mAh3120 mAh
TypeLi-PolymerLi-Polymer
2G stand-by time-269 h
16140 min
11.2 days
3G stand-by time-269 h
16140 min
11.2 days
Charger output power5 V / 2 A
9 V / 1.67 A
5 V / 3 A
9 V / 2 A
12 V / 1.5 A
Quick charge technology-Qualcomm Quick Charge 3.0
FeaturesWireless charging
Fast charging
Non-removable
Fast charging
Non-removable
Qi/PMA wireless charging-

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 (USA)0.78 W/kg-
Body SAR (USA)0.79 W/kg-
 Samsung Galaxy S9+ SD845Xiaomi Mi 8 SE