Comparison between:
- Samsung Galaxy A50
- Samsung Galaxy S8 Exynos
- Nokia 8.1
- Xiaomi Redmi Note 7 Pro

Brand and model

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

Samsung Galaxy A50Samsung Galaxy S8 ExynosNokia 8.1Xiaomi Redmi Note 7 Pro
Samsung Galaxy A50
Prices
Samsung Galaxy S8 Exynos
Prices
Nokia 8.1
Prices
Xiaomi Redmi Note 7 Pro
Prices
Model aliasSM-A505FD
A505FD
SM-G950F
G950F
SM-G950FD
G950FD
TA-1119
TA-1121
TA-1128
TA-1131
Redmi Note7 Pro
Redmi Note 7Pro
Redmi Note7Pro
Red Rice Note 7 Pro
Red Rice Note 7Pro
Red Rice Note7 Pro
Red Rice Note7Pro

Design

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

Width74.7 mm
7.47 cm
0.25 ft
2.94 in
68.1 mm
6.81 cm
0.22 ft
2.68 in
75.76 mm
7.58 cm
0.25 ft
2.98 in
75.21 mm
7.52 cm
0.25 ft
2.96 in
Height158.5 mm
15.85 cm
0.52 ft
6.24 in
148.9 mm
14.89 cm
0.49 ft
5.86 in
154.8 mm
15.48 cm
0.51 ft
6.09 in
159.21 mm
15.92 cm
0.52 ft
6.27 in
Thickness7.7 mm
0.77 cm
0.03 ft
0.3 in
8 mm
0.8 cm
0.03 ft
0.31 in
7.97 mm
0.8 cm
0.03 ft
0.31 in
8.1 mm
0.81 cm
0.03 ft
0.32 in
Weight166 g
0.37 lbs
5.86 oz
155 g
0.34 lbs
5.47 oz
178 g
0.39 lbs
6.28 oz
186 g
0.41 lbs
6.56 oz
Volume91.17 cm³
5.54 in³
81.12 cm³
4.93 in³
93.47 cm³
5.68 in³
96.99 cm³
5.89 in³
ColorsBlack
Blue
White
Coral
Black
Silver
Gold
Blue
Gray
Pink
Red
Blue
Silver
Black
Copper
Blue
Black
Red
Body materialsPlasticGlass
Aluminium alloy
Aluminium alloy
Glass
Glass
Plastic
Certification-IP68--

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-SIMNano-SIM
Nano-SIM / microSD
Nano-SIM
Nano-SIM / microSD
Number of SIM cards2122
FeaturesDual SIM stand-by (Both cards are active. When one is busy, the other is not active)Dual SIM optional (A variant of the model with two SIM card slots is available)--

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
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 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 1700/2100 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 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 700 MHz (B28)
LTE 850 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 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 2000 MHz (B34)

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 12
UMTS
EDGE
GPRS
HSPA+
LTE Cat 16
TD-SCDMA
TD-HSDPA
UMTS
EDGE
GPRS
HSPA+
LTE Cat 6
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 9.0 PieAndroid 7.0 Nougat
Android 8.0 Oreo
Android 9.0 Pie
Android 9.0 PieMIUI V10.2 (Android 9.0 Pie)
MIUI V10.3.5 (Android 9.0 Pie)
User interface (UI)-Experience 8.1--

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.

SoCSamsung Exynos 7 Octa 9610Samsung Exynos 9 Octa 8895Qualcomm Snapdragon 710Qualcomm Snapdragon 675
Process technology10 nm10 nm10 nm11 nm
CPU4x 2.3 GHz ARM Cortex-A73, 4x 1.7 GHz ARM Cortex-A534x 2.3 GHz Exynos M2 Mongoose, 4x 1.7 GHz ARM Cortex-A532x 2.2 GHz Kryo 360, 6x 1.7 GHz Kryo 3602x 2.0 GHz Kryo 460, 6x 1.7 GHz Kryo 460
CPU bits64 bit64 bit64 bit64 bit
Instruction setARMv8-AARMv8-AARMv8ARMv8
CPU cores8888
CPU frequency2300 MHz2300 MHz2200 MHz2000 MHz
GPUARM Mali-G72 MP3ARM Mali-G71 MP20Qualcomm Adreno 616Qualcomm Adreno 612
GPU cores320--
GPU frequency-546 MHz500 MHz-
RAM capacity4 GB
6 GB
4 GB4 GB
6 GB
4 GB
6 GB
RAM typeLPDDR4XLPDDR4XLPDDR4XLPDDR4X
RAM channelsDouble channelDouble channelDouble channelDouble channel
RAM frequency-1794 MHz1866 MHz1866 MHz

Storage

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

Storage64 GB
128 GB
64 GB64 GB
128 GB
64 GB
128 GB
-UFS 2.1eMMC 5.1eMMC 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
microSD
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 AMOLEDIPSIPS
Diagonal size6.4 in
162.56 mm
16.26 cm
5.8 in
147.32 mm
14.73 cm
6.18 in
156.97 mm
15.7 cm
6.3 in
160.02 mm
16 cm
Width2.68 in
68.12 mm
6.81 cm
2.54 in
64.45 mm
6.44 cm
2.65 in
67.2 mm
6.72 cm
2.64 in
67.06 mm
6.71 cm
Height5.81 in
147.6 mm
14.76 cm
5.22 in
132.48 mm
13.25 cm
5.59 in
141.86 mm
14.19 cm
5.72 in
145.29 mm
14.53 cm
Aspect ratio2.167:12.056:12.111:12.167:1
Resolution1080 x 2340 pixels1440 x 2960 pixels1080 x 2280 pixels1080 x 2340 pixels
Pixel density403 ppi
158 ppcm
568 ppi
223 ppcm
408 ppi
160 ppcm
409 ppi
160 ppcm
Color depth24 bit
16777216 colors
24 bit
16777216 colors
24 bit
16777216 colors
24 bit
16777216 colors
Display area85.2 %84.47 %81.55 %81.63 %
Other featuresCapacitive
Multi-touch
Scratch resistant
Capacitive
Multi-touch
Scratch resistant
Capacitive
Multi-touch
Scratch resistant
Capacitive
Multi-touch
Scratch resistant
Corning Gorilla Glass 3
400 cd/m²
Peak brightness - 550 cd/m²
Corning Gorilla Glass 5
Dual Edge display
Always-On Display
540 cd/m²
90% DCI-P3
NEG Glass
Full Lamination Technology
1500:1 contrast ratio
500 cd/m²
96% NTSC
HDR10
Display manufacturer - Shenchao
Corning Gorilla Glass 5
2.5D curved glass screen
LTPS (Low Temperature PolySilicon)
1500:1 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
Proximity
Light
Accelerometer
Compass
Gyroscope
Barometer
Fingerprint
Hall
Heart rate
Iris sensor
Proximity
Light
Accelerometer
Compass
Gyroscope
Fingerprint
Hall
Proximity
Light
Accelerometer
Compass
Gyroscope
Fingerprint
In-display fingerprint sensorFingerprint sensor model - Synaptics Namsan--

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 model-Sony IMX333 Exmor RSSony IMX363 Exmor RSSony IMX586 Exmor RS
Sensor typeCMOS BSICMOSCMOSCMOS BSI
ISO---100 - 3200
Aperturef/1.7f/1.7f/1.8f/1.79
Focal length3.93 mm4.2 mm4.36 mm4.74 mm
Flash typeLEDDual LEDDual LEDDual LED
Image resolution5760 x 4312 pixels
24.84 MP
4032 x 3024 pixels
12.19 MP
4032 x 3024 pixels
12.19 MP
8000 x 6000 pixels
48 MP
Video resolution1920 x 1080 pixels
2.07 MP
3840 x 2160 pixels
8.29 MP
3840 x 2160 pixels
8.29 MP
3840 x 2160 pixels
8.29 MP
Video FPS30 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
Autofocus
Continuous shooting
Digital zoom
Digital image stabilization
Optical image stabilization
Geotagging
Panorama
HDR
Touch focus
Face detection
White balance settings
ISO settings
Exposure compensation
Self-timer
Scene mode
RAW
Autofocus
Continuous shooting
Digital zoom
Optical 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
Digital image stabilization
Geotagging
Panorama
HDR
Touch focus
Face detection
White balance settings
ISO settings
Exposure compensation
Self-timer
Scene mode
RAW
Focal length (35 mm equivalent) - 26 mm
Secondary rear camera - 8 MP (ultra-wide angle)
Aperture size - f/2.2 (#2)
Focal length (35 mm equivalent) - 13 mm (#2)
Angle of view - 123° (#2)
Third rear camera - 5 MP
Aperture size - f/2.2 (#3)
Available also with Samsung S5K2L2 (ISOCELL)
Pixel size - 1.4 μm
Sensor size - 1/2.55"
Phase detection with Dual Pixel
Object tracking AF
Smart OIS
High CRI LED flash
Focal length (35 mm equivalent) - 26 mm
Angle of view - 77°
720p @ 240 fps
Available also with Samsung S5K2L7 (ISOCELL)
Sensor size - 1/2.56"
Pixel size - 1.4 μm
Phase detection with Dual Pixel
Carl Zeiss lens
High CRI LED flash
Focal length (35 mm equivalent) - 25 mm
Angle of view - 80°
Secondary rear camera - 13 MP
Sensor model - Samsung S5K3L6 (#2)
Sensor type - ISOCELL (#2)
Sensor size - 1/3.1" (#2)
Pixel size - 1.12 μm (#2)
Aperture size - f/2.2 (#2)
Carl Zeiss lens (#2)
Sensor size - 1/2"
Pixel size - 1.6 μm (4-in-1 pixel binning)
Phase detection with Dual Pixel
6-element lens
Focal length (35 mm equivalent) - 25 mm
1080p @ 120 fps
720p @ 120 fps
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)

Secondary camera

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

Sensor model-Sony IMX320 Exmor RSSamsung S5K3T1OmniVision OV13855
Sensor typeCMOS BSICMOSISOCELLPureCel
Sensor size---4.75 x 3.54 mm
0.23 in
Pixel size---1.124 µm
0.001124 mm
Crop factor---7.31
Aperturef/2f/1.7f/2f/2
Focal length3.75 mm2.95 mm3.52 mm3.51 mm
25.65 mm *(35 mm / full frame)
Image resolution5760 x 4312 pixels
24.84 MP
3264 x 2448 pixels
7.99 MP
5184 x 3880 pixels
20.11 MP
4224 x 3136 pixels
13.25 MP
Video resolution1920 x 1080 pixels
2.07 MP
2560 x 1440 pixels
3.69 MP
1920 x 1080 pixels
2.07 MP
1920 x 1080 pixels
2.07 MP
Video FPS30 fps30 fps30 fps30 fps
Focal length (35 mm equivalent) - 25 mmAvailable also with Samsung S5K3H1
Sensor size - 1/3.6"
Pixel size - 1.22 μm
Focal length (35 mm equivalent) - 25 mm
Angle of view - 80°
Auto HDR
Pixel size - 1.8 μm (4-in-1 pixel binning)
Carl Zeiss lens
Focal length (35 mm equivalent) - 20 mm
Face unlock

Audio

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

SpeakerLoudspeaker
Earpiece
Loudspeaker
Earpiece
Loudspeaker
Earpiece
Loudspeaker
Earpiece
-192 kHz / 24-bitOZO AudioSmart PA

Radio

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

RadioYesNoYesYes

Tracking/Positioning

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

Tracking/PositioningGPS
A-GPS
GLONASS
BeiDou
Galileo
GPS
A-GPS
GLONASS
BeiDou
Galileo
GPS
A-GPS
GLONASS
BeiDou
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
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
802.11a
802.11b
802.11g
802.11n
802.11n 5GHz
802.11ac
Dual band
Wi-Fi Hotspot
Wi-Fi Direct
Wi-Fi Display
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
--

Bluetooth

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

Version5.05.05.05.0
FeaturesA2DP
AVRCP
DIP
HFP
HID
HSP
MAP
OPP
PAN
PBAP
HOGP
A2DP
AVRCP
DIP
HFP
HID
HSP
LE
MAP
OPP
PAN
PBAP
A2DPA2DP
LE

USB

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

Connector typeUSB Type-CUSB Type-CUSB Type-CUSB Type-C
Version2.03.12.02.0
FeaturesCharging
Mass storage
On-The-Go
Charging
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 jackYesYesYesYes

Connectivity

Information about other important connectivity technologies supported by the devices.

ConnectivityComputer sync
OTA sync
Tethering
NFC
VoLTE
ANT+
Computer sync
OTA sync
Tethering
NFC
ANT+
Computer sync
OTA sync
Tethering
NFC
VoLTE
VoWiFi
Computer sync
OTA sync
Infrared
Tethering
VoLTE
NFC - market dependent---

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
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
AMR-WB
eAAC+
FLAC
M4A
MIDI
MP3
OGG
WMA
WAV
AAC
AAC+
AMR
AMR-WB
aptX
eAAC+
FLAC
M4A
MIDI
MP3
OGG
WMA
WAV
XMF
AAC
AMR
AMR-WB
eAAC+
FLAC
M4A
MIDI
MP3
OGG
WMA
WAV
AAC
AAC+
AMR
AMR-WB
aptX
aptX HD
eAAC+
FLAC
MIDI
MP3
OGG
WMA
WAV
LDAC

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
Flash Video
H.263
H.264
H.265
MKV
MP4
VC-1
VP8
VP9
WebM
WMV
WMV7
WMV8
Xvid
3GPP
3GPP2
AVI
DivX
Flash Video
H.263
H.264
MKV
MP4
WebM
WMV
Xvid
ASF
3GPP
AVI
H.263
H.264
MKV
MP4
WMV
Xvid
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.

Capacity4000 mAh3000 mAh3500 mAh4000 mAh
TypeLi-PolymerLi-IonLi-PolymerLi-Polymer
2G talk time23 h
1380 min
1 days
29 h
1740 min
1.2 days
-45 h 30 min
45.5 h
2730 min
1.9 days
2G stand-by time---450 h
27000 min
18.8 days
3G talk time23 h
1380 min
1 days
29 h
1740 min
1.2 days
-45 h 30 min
45.5 h
2730 min
1.9 days
3G stand-by time---450 h
27000 min
18.8 days
Charger output power5 V / 2 A
9 V / 1.67 A
5 V / 2 A
9 V / 1.67 A
5 V / 3 A
9 V / 2 A
12 V / 1.5 A
5 V / 3 A
9 V / 2 A
12 V / 1.5 A
Quick charge technology---Qualcomm Quick Charge 4.0
FeaturesFast charging
Non-removable
Wireless charging
Fast charging
Non-removable
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 (EU)0.27 W/kg0.315 W/kg0.514 W/kg-
Body SAR (EU)1.39 W/kg1.27 W/kg1.49 W/kg-
Head SAR (USA)0.34 W/kg0.37 W/kg--
Body SAR (USA)0.45 W/kg0.75 W/kg--

Additional features

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

Additional features---M1901F7S - SAR (Specific Absorption Rate) India: head - 0.962 W/kg; body - 0.838 W/kg
P2i nano-coating
 Samsung Galaxy A50Samsung Galaxy S8 ExynosNokia 8.1Xiaomi Redmi Note 7 Pro