Comparison between:
- Samsung Galaxy S21 5G Exynos
- Xiaomi 14T

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

	Samsung Galaxy S21 5G Exynos	Xiaomi 14T

Model alias	SM-G991B SM-G991B/DS SM-G991W SM-G991N SM-G9910	-

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

Width	71.2 mm 7.12 cm 0.234 ft 2.803 in	75.1 mm 7.51 cm 0.246 ft 2.957 in
Height	151.7 mm 15.17 cm 0.498 ft 5.972 in	160.5 mm 16.05 cm 0.527 ft 6.319 in
Thickness	7.9 mm 0.79 cm 0.026 ft 0.311 in	7.8 mm 0.78 cm 0.026 ft 0.307 in
Weight	171 g 0.38 lbs 6.03 oz	195 g 0.43 lbs 6.88 oz
Volume	85.33 cm³ 5.18 in³	94.02 cm³ 5.71 in³
Colors	Phantom Violet Phantom Pink Phantom Grey Phantom White	Lemon Green Titan Black Titan Gray Titan Blue
Body materials	Plastic Aluminium alloy	Aluminium alloy Glass Faux leather
Certification	IP68	IP68

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

SIM card type	Nano-SIM eSIM	Nano-SIM eSIM
Number of SIM cards	1	2
Features	Dual 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)

A mobile (cellular) network is a radio system, which allows a large number of mobile devices to communicate with each other.

GSM	GSМ 850 МНz (В5) GSМ 900 МНz (В8) GSМ 1900 МНz (В2)	GSМ 850 МНz (В5) GSМ 900 МНz (В8) GSМ 1900 МНz (В2)
W-CDMA	-	W-CDMA 850 MHz (B5) W-CDMA 850 MHz (B6) W-CDMA 900 MHz (B8) W-CDMA 900 MHz (B19) W-CDMA 1700 MHz (B4) W-CDMA 1900 MHz (B2) W-CDMA 2100 MHz (B1)
UMTS	UМТS 900 МНz (В8) UМТS 1700 МНz (В4) UМТS 1900 МНz (В2) UМТS 2100 МНz (В1)	-
LTE	LТЕ-FDD 700 МНz (В12) LТЕ-FDD 700 МНz (В13) LТЕ-FDD 700 МНz (В17) LТЕ-FDD 700 МНz (В28) LТЕ-FDD 800 МНz (В20) LТЕ-FDD 850 МНz (В5) LТЕ-FDD 900 МНz (В8) LТЕ-FDD 1700 МНz (В4) LТЕ-FDD 1800 МНz (В3) LТЕ-FDD 1900 МНz (В2) LТЕ-FDD 2100 МНz (В1) LТЕ-FDD 2600 МНz (В7) LТЕ-ТDD 1900 МНz (В39) LТЕ-ТDD 2000 МНz (В34) LТЕ-ТDD 2300 МНz (В40) LТЕ-ТDD 2600 МНz (В38)	LТЕ-FDD 700 МНz (В12) LТЕ-FDD 700 МНz (В13) LТЕ-FDD 700 МНz (В17) LТЕ-FDD 700 МНz (В28) LТЕ-FDD 800 МНz (В20) LТЕ-FDD 850 МНz (В5) LТЕ-FDD 850 МНz (В18) LТЕ-FDD 850 МНz (В19) LТЕ-FDD 850 МНz (В26) LТЕ-FDD 900 МНz (В8) LТЕ-FDD 1500 МНz (В32) LТЕ-FDD 1700 МНz (В4) LТЕ-FDD 1700 МНz (В66) LТЕ-FDD 1800 МНz (В3) LТЕ-FDD 1900 МНz (В2) LТЕ-FDD 1900 МНz (В25) LТЕ-FDD 2100 МНz (В1) LТЕ-FDD 2600 МНz (В7) LТЕ-ТDD 1900 МНz (В39) LТЕ-ТDD 2000 МНz (В34) LТЕ-ТDD 2300 МНz (В40) LТЕ-ТDD 2600 МНz (В38)
5G NR	5G-FDD 700 MHz (n28) 5G-FDD 850 MHz (n5) 5G-FDD 900 MHz (n8) 5G-FDD 1800 MHz (n3) 5G-FDD 2100 MHz (n1) 5G-TDD 2300 MHz (n40) 5G-FDD 2600 MHz (n7) 5G-TDD 3500 MHz (n78) 5G-TDD 3700 MHz (n77)	5G-FDD 700 MHz (n12) 5G-FDD 700 MHz (n28) 5G-FDD 800 MHz (n20) 5G-FDD 850 MHz (n5) 5G-FDD 900 MHz (n8) 5G-SDL 1500 MHz (n75) 5G-FDD 1700 MHz (n66) 5G-FDD 1800 MHz (n3) 5G-FDD 2100 MHz (n1) 5G-TDD 2300 MHz (n40) 5G-TDD 2500 MHz (n41) 5G-FDD 2600 MHz (n7) 5G-TDD 2600 MHz (n38) 5G-TDD 3500 MHz (n78) 5G-TDD 3700 MHz (n77)

Communication between devices within mobile networks is realized via various generations of network technologies, which provide different bandwidth.

Mobile network technologies

UМТS
GРRS
LТЕ Саt 20

UМТS
GРRS
LТЕ

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

Operating system (OS)	Аndrоid 11	Хiаоmi НyреrОS
User interface (UI)	One UI 3.1	-

A system on a chip (SoC) includes into a single chip some of the main hardware components of the mobile device.

SoC	Sаmsung Ехynоs 2100 (S5Е9840)	МеdiаТеk Dimеnsity 8300-Ultrа (МТ6897)
Process technology	5 nm	4 nm
CPU	1х 2.91 GНz АRМ Соrtех-Х1, 3х 2.81 GНz АRМ Соrtех-А78, 4х 2.2 GНz АRМ Соrtех-А55	4х 3.35 GНz АRМ Соrtех-А715, 4х 2.2 GНz АRМ Соrtех-А510
CPU bits	64 bit	64 bit
Instruction set	ARMv8.2-A	ARMv9-A
Level 1 cache memory (L1)	16 KB + 16 KB	16 KB + 16 KB
Level 3 cache memory (L3)	-	4196 KB 4.09766 MB
CPU cores	8	8
CPU frequency	2910 MHz	3350 MHz
GPU	ARM Mali-G78 MP14	ARM Mali-G615 MC6
GPU cores	14	6
GPU frequency	854 MHz	-
RAM capacity	8 GB	12 GB
RAM type	LPDDR5	LPDDR5X
RAM channels	Quad channel	Quad channel
RAM frequency	3333 MHz	4399 MHz
	-	MediaTek NPU 780 Xiaomi IceLoop Cooling

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

Storage	128 GB 256 GB	256 GB 512 GB
	eMMC 5.1	UFS 2.0

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

Type/technology	Dynamic AMOLED 2X	AMOLED
Diagonal size	6.2 in 157.48 mm 15.75 cm	6.67 in 169.42 mm 16.94 cm
Width	2.65 in 67.42 mm 6.74 cm	2.8 in 71 mm 7.1 cm
Height	5.6 in 142.32 mm 14.23 cm	6.06 in 153.82 mm 15.38 cm
Aspect ratio	2.111:1	2.167:1
Resolution	720 x 1520 pixels	1080 x 2340 pixels
Pixel density	271 ppi 106 ppcm	386 ppi 151 ppcm
Color depth	24 bit 16777216 colors	36 bit 68719476736 colors
Display area	89.12 %	90.9 %
Other features	Capacitive Multi-touch Scratch resistant	Capacitive Multi-touch Scratch resistant
	Corning Gorilla Glass Victus Infinity-O Display Always-On Display 120Hz refresh rate (adaptive) HDR10+ 1300 cd/m² peak brightness	Pro HDR display TrueColor display AI image engine Original Colour Pro Adaptive colors Reading mode 144 Hz refresh rate 480 Hz touch sampling rate 4000 cd/m² peak brightness 3840 Hz PWM dimming 100% DCI-P3 12-bit color bit depth HDR10+ Dolby Vision TÜV Rheinland Low Blue Light Certified (Hardware Solution) TÜV Rheinland Flicker Free Certified TÜV Rheinland Circadian Friendly Certified

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

Sensors	Proximity Light Accelerometer Compass Gyroscope Barometer Geomagnetic Fingerprint	Accelerometer Compass Gyroscope Fingerprint Ultrasonic proximity sensor
	In-display ultrasonic fingerprint sensor	X-axis linear motor In-display fingerprint sensor

The main camera of the mobile device is usually placed on its back and can be combined with one or more additional cameras.

Sensor model	-	Sony IMX906
Sensor type	CMOS	CMOS BSI 2
Sensor format	1/1.76"	-
Pixel size	1.8 µm 0.001800 mm	1 µm 0.001000 mm
Aperture	f/1.8	f/1.7
Focal length and 35 mm equivalent	26 mm ^{*(35 mm / full frame)}	23 mm ^{*(35 mm / full frame)}
Field of view	79 °	-
Flash type	LED	LED
Image resolution	4032 x 3024 pixels 12.19 MP	8120 x 6180 pixels 50.18 MP
Video resolution	7680 x 4320 pixels 33.18 MP	3840 x 2160 pixels 8.29 MP
Video FPS	30 fps	60 fps
Features	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 Phase detection autofocus (PDAF)	Autofocus Continuous shooting Digital zoom Optical 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 Macro mode Phase detection autofocus (PDAF) ISO Fusion Max
	Phase detection with Dual Pixel Object tracking AF Dual OIS 2160p @ 60 fps 1080p @ 240 fps 720p @ 960 fps HDR10+ video recording	Leica Vario Summilux Lens ALD polarizing filter

Specifications of the ultra-wide camera of the device. This type of camera captures a wider field of view compared to the main camera.

Sensor model	Sony IMX563	-
Sensor format	1/2.55"	-
Pixel size	1.4 µm 0.001400 mm	-
Aperture	f/2.2	f/2.2
Focal length equivalent (35 mm)	13 mm ^{*(35 mm / full frame)}	15 mm ^{*(35 mm / full frame)}
Field of view	120 °	120 °
Image resolution	12 MP	12 MP

Specifications of the telephoto camera. These cameras are used to capture distant objects by using optical zoom to make them look closer without losing resolution and detail.

Sensor format	1/1.76"	-
Pixel size	0.8 µm 0.000800 mm	-
Aperture	f/2	f/1.9
Focal length equivalent (35 mm)	28 mm ^{*(35 mm / full frame)}	50 mm ^{*(35 mm / full frame)}
Field of view	76 °	-
Image resolution	64 MP	50 MP
Features	Optical image stabilization	-
	3x hybrid optical zoom	-

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 type	CMOS	CMOS
Sensor format	1/3.24"	-
Pixel size	1.22 µm 0.001220 mm	-
Aperture	f/2.2	f/2
Focal length and 35 mm equivalent	25 mm ^{*(35 mm / full frame)}	-
Field of view	80 °	80.8 °
Image resolution	10 MP	6944 x 4655 pixels 32.32 MP
Video resolution	-	3840 x 2160 pixels 8.29 MP
Video FPS	-	30 fps
Features	Phase detection autofocus (PDAF) HDR Autofocus	Face unlock HDR Face detection Digital image stabilization
	Phase detection with Dual Pixel Auto HDR	-

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

Speaker	Loudspeaker Earpiece Stereo speakers	Loudspeaker Earpiece Stereo speakers
	384 kHz / 32-bit AKG audio Dolby Atmos	Dolby Atmos Hi-Res Audio Hi-Res Audio Wireless Four microphones with active noise cancellation

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

Radio

Yes

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

Tracking/Positioning

GРS
А-GРS
GLОΝАSS

Wi-Fi is a technology that provides wireless data connections between various devices within a short range.

Wi-Fi	802.11а 802.11b 802.11g Wi-Fi Disрlаy Wi-Fi 6 (802.11ах) 802.11а 802.11ас 5GНz	802.11а 802.11b 802.11g Wi-Fi 6 (802.11ах) Wi-Fi 6Е (802.11ах) Wi-Fi Disрlаy 802.11а 802.11ас 5GНz 802.11аd
	HE80 MiMO 1024-QAM	2x2 MIMO 8x8 MU-MIMO

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

Version	5.2	5.4
Features	A2DP AVRCP DIP HFP HID HSP LE MAP OPP PAN PBAP	A2DP EDR HID LE

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

Connector type	USB Type-C	USB Type-C
Version	3.2	3.2
Features	Charging Mass storage On-The-Go	Charging Mass storage On-The-Go
	-	Gen 1 - 5 Gbps Power Delivery DisplayPort Alt Mode

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 jack

Information about other important connectivity technologies supported by the devices.

Connectivity

Computer sync
OTA sync
Tethering
NFC

Computer sync
OTA sync
Infrared
Tethering
NFC
VoLTE
ViLTE
VoWiFi

A web browser is a software application for accessing, fetching, displaying and navigating through information on the World Wide Web.

Browser

HTML
HTML5
CSS 3

Mobile devices support various audio file formats and codecs, which respectively store and code/decode digital audio data.

Audio file formats/codecs

AAC
AMR
FLAC
M4A
MIDI
MP3
OGG
WMA
WAV
3GA
OGA
AWB
MID
XMF
MXMF
IMY
RTTTL
RTX
OTA
APE
DSF
DFF

AAC
AAC+
AMR
AMR-WB
aptX
aptX HD
eAAC+
FLAC
MIDI
MP3
OGG
WMA
WAV
LDAC
LHDC 5.0
LC3
APE
AWB

Mobile devices support various video file formats and codecs, which respectively store and code/decode digital video data.

Video file formats/codecs

AVI
MKV
MP4
WMV
M4V
3GP
3G2
ASF
FLV
WEBM

3GPP
AVI
DivX
H.263
H.264
H.265
MKV
MP4
VC-1
WebM
WMV
Xvid
ASF

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

Capacity	4000 mAh	5000 mAh
Type	Li-Polymer	Li-Polymer
Charger output power	5 V / 5 A	10 V / 6.7 A
Features	Wireless charging Fast charging Non-removable	Fast charging Non-removable
	Qi/PMA wireless charging - 15 W Wireless reverse charging - 9 W Fast Wireless Charging 2.0 USB Power Delivery 3.0	-

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)	0.796 W/kg	-
Body SAR (EU)	1.819 W/kg	-
Head SAR (USA)	1.03 W/kg	-
Body SAR (USA)	1.35 W/kg	-

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

Additional features

Samsung DeX

Samsung Galaxy S21 5G Exynos

Xiaomi 14T

Xiaomi Mi Note

Samsung Galaxy S6 Edge+

Xiaomi Mi 3 TD

Xiaomi Mi 2a