Comparison between:
- Xiaomi Redmi Note 8 2021
- Xiaomi Redmi Note 8
- Ulefone Note 6P
- Ulefone Note 8

Brand and model

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

Xiaomi Redmi Note 8 2021Xiaomi Redmi Note 8Ulefone Note 6PUlefone Note 8
Xiaomi Redmi Note 8 2021Xiaomi Redmi Note 8Ulefone Note 6PUlefone Note 8
Model aliasRedmi Note8 2021Redmi Note8
Red Rice Note 8
Red Rice Note8
C3J
M1908C3JH
M1908C3JG
M1908C3JI		Note6PNote8

Design

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

Width75.3 mm
7.53 cm
0.247 ft
2.965 in		75.3 mm
7.53 cm
0.247 ft
2.965 in		73.4 mm
7.34 cm
0.241 ft
2.89 in		66.5 mm
6.65 cm
0.218 ft
2.618 in
Height158.3 mm
15.83 cm
0.519 ft
6.232 in		158.3 mm
15.83 cm
0.519 ft
6.232 in		155.35 mm
15.535 cm
0.51 ft
6.116 in		141.7 mm
14.17 cm
0.465 ft
5.579 in
Thickness8.35 mm
0.835 cm
0.027 ft
0.329 in		8.35 mm
0.835 cm
0.027 ft
0.329 in		8.5 mm
0.85 cm
0.028 ft
0.335 in		12 mm
1.2 cm
0.039 ft
0.472 in
Weight190 g
0.42 lbs
6.7 oz		190 g
0.42 lbs
6.7 oz		155 g
0.34 lbs
5.47 oz		153 g
0.34 lbs
5.4 oz
Volume99.53 cm³
6.04 in³		99.53 cm³
6.04 in³		96.92 cm³
5.89 in³		113.08 cm³
6.87 in³
ColorsBlack
Dark Blue
Light Blue		Meteorite Black
Dream Blue
White
Nebula Purple		Purple
Red
Green
Black		Amber Sunrise
Midnight Green
Black
Body materialsPlastic
Glass		Aluminium alloy
Plastic		PlasticPlastic
Certification-IP52--

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-SIMNano-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)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.

GSMGSМ 850 МНz (В5)
GSМ 900 МНz (В8)
GSМ 1900 МНz (В2)		GSМ 850 МНz (В5)
GSМ 900 МНz (В8)
GSМ 1900 МНz (В2)		GSМ 850 МНz (В5)
GSМ 900 МНz (В8)
GSМ 1900 МНz (В2)		GSМ 850 МНz (В5)
GSМ 900 МНz (В8)
GSМ 1900 МНz (В2)
CDMACDMA 800 MHz (BC0)CDMA 800 MHz (BC0)--
W-CDMAW-CDMA 850 MHz (B5)
W-CDMA 900 MHz (B8)
W-CDMA 2100 MHz (B1)		W-CDMA 850 MHz (B5)
W-CDMA 900 MHz (B8)
W-CDMA 2100 MHz (B1)		W-CDMA 850 MHz (B5)
W-CDMA 900 MHz (B8)
W-CDMA 2100 MHz (B1)		W-CDMA 850 MHz (B5)
W-CDMA 900 MHz (B8)
W-CDMA 1700 MHz (B4)
W-CDMA 1900 MHz (B2)
W-CDMA 2100 MHz (B1)
TD-SCDMATD-SCDMA 1900 MHz
TD-SCDMA 2000 MHz		TD-SCDMA 1900 MHz
TD-SCDMA 2000 MHz		--
LTELТЕ-FDD 850 МНz (В5)
LТЕ-FDD 900 МНz (В8)
LТЕ-FDD 1800 МНz (В3)
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 850 МНz (В5)
LТЕ-FDD 900 МНz (В8)
LТЕ-FDD 1800 МНz (В3)
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 800 МНz (В20)
LТЕ-FDD 850 МНz (В5)
LТЕ-FDD 900 МНz (В8)
LТЕ-FDD 1800 МНz (В3)
LТЕ-FDD 2600 МНz (В7)		-

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 technologiesUМТS
GРRS
LТЕ Саt 12		UМТS
GРRS
LТЕ Саt 12		UМТS
GРRS
LТЕ		UМТS
GРRS

Operating system

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

Operating system (OS)МΙUΙ 12.5 (Аndrоid 11)МΙUΙ V10 (Аndrоid 9.0 Рiе)
МΙUΙ V11 (Аndrоid 9.0 Рiе)
МΙUΙ V12 (Аndrоid 10)		Аndrоid 11 Gо еditiоnАndrоid 10 Gо еditiоn

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.

SoCМеdiаТеk Неliо G85 (МТ6769Ζ)Quаlсоmm Snарdrаgоn 665 (SМ6125)Unisос SС9863АМеdiаТеk МТ6580А
Process technology12 nm11 nm28 nm28 nm
CPU2х 2.0 GНz АRМ Соrtех-А75, 6х 1.8 GНz АRМ Соrtех-А554х 2.0 GНz АRМ Соrtех-А73, 4х 1.8 GНz АRМ Соrtех-А53 (Κryо 260)4х 1.6 GНz АRМ Соrtех-А55, 4х 1.2 GНz АRМ Соrtех-А554х 1.3 GНz АRМ Соrtех-А7
CPU bits64 bit64 bit64 bit64 bit
Instruction setARMv8.2-AARMv8-AARMv8.2-AARMv8
Level 1 cache memory (L1)16 KB + 16 KB16 KB + 16 KB16 KB + 16 KB16 KB + 16 KB
Level 2 cache memory (L2)---512 KB
0.5 MB
CPU cores8884
CPU frequency2000 MHz2000 MHz1600 MHz1300 MHz
GPUARM Mali-G52 2EEMC2Qualcomm Adreno 610PowerVR GE8322 / IMG8322ARM Mali-400 MP1
GPU cores2-21
GPU frequency1000 MHz950 MHz550 MHz500 MHz
RAM capacity4 GB4 GB
6 GB		2 GB2 GB
RAM typeLPDDR4XLPDDR4XLPDDR4/LPDDR4XLPDDR2/LPDDR3
RAM channelsDouble channelDouble channelDouble channelSingle channel
RAM frequency1700 MHz1999 MHz1733 MHz433 MHz

Storage

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

Storage64 GB
128 GB		64 GB
128 GB		32 GB16 GB
-eMMC 5.1UFS 2.1-

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/technologyIPSIPSIPSIPS
Diagonal size6.3 in
160.02 mm
16 cm		6.3 in
160.02 mm
16 cm		6.1 in
154.94 mm
15.49 cm		5.5 in
139.7 mm
13.97 cm
Width2.82 in
71.56 mm
7.16 cm		3.01 in
76.52 mm
7.65 cm		2.56 in
64.93 mm
6.49 cm		2.26 in
57.33 mm
5.73 cm
Height5.63 in
143.13 mm
14.31 cm		5.53 in
140.54 mm
14.05 cm		5.54 in
140.68 mm
14.07 cm		5.02 in
127.4 mm
12.74 cm
Aspect ratio2:1
2:1 (18:9)		1.837:12.167:12.222:1
Resolution1080 x 2160 pixels1176 x 2160 pixels1080 x 2340 pixels1080 x 2400 pixels
Pixel density383 ppi
150 ppcm		390 ppi
153 ppcm		422 ppi
165 ppcm		479 ppi
188 ppcm
Color depth24 bit
16777216 colors		24 bit
16777216 colors		24 bit
16777216 colors		24 bit
16777216 colors
Display area86.21 %90.51 %80.36 %77.76 %
Other featuresCapacitive
Scratch resistant		Capacitive
Scratch resistant		Capacitive
Multi-touch		Capacitive
Multi-touch
2.5D curved glass screen
Corning Gorilla Glass 5
1500:1 contrast ratio
84% NTSC		2.5D curved glass screen
Corning Gorilla Glass 5
TÜV Rheinland certification for low blue light emissions
1500:1 contrast ratio
84% NTSC		2.5D curved glass screen2.5D curved glass screen

Sensors

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

SensorsProximity
Light
Accelerometer
Gyroscope		Proximity
Light
Accelerometer
Gyroscope		Proximity
Light
Accelerometer		Accelerometer

Main rear camera

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

Sensor modelSamsung S5KGM2Samsung S5KGM1--
Sensor typeISOCELLISOCELLCMOSCMOS
Sensor format1/2.25"1/2.25"--
Pixel size0.8 µm
0.000800 mm		0.8 µm
0.000800 mm		--
ISO--100 - 800100 - 800
Aperturef/1.79f/1.79-f/2.8
Focal length and 35 mm equivalent13 mm *(35 mm / full frame)13 mm *(35 mm / full frame)--
Field of view79.4 °79.4 °--
Number of lenses6655
Flash typeLEDLEDDual LEDDual LED
Image resolution8000 x 6000 pixels
48 MP		8000 x 6000 pixels
48 MP		3264 x 2448 pixels
7.99 MP		2560 x 1920 pixels
4.92 MP
Video resolution3840 x 2160 pixels
8.29 MP		3840 x 2160 pixels
8.29 MP		1920 x 1080 pixels
2.07 MP		1280 x 720 pixels
0.92 MP
Video FPS30 fps30 fps30 fps16 fps
FeaturesAutofocus
Digital zoom
Digital 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)		Autofocus
Digital zoom
Digital 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)		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
Pixel size - 1.6 μm (4-in-1 pixel binning)
Sensor type - ISOCELL PLUS
Super Phase Detection
1080p @ 120 fps
720p @ 240 fps
Samsung S5KGM1 is also available		Pixel size - 1.6 μm (4-in-1 pixel binning)
Sensor type - ISOCELL PLUS
Super Phase Detection
1080p @ 120 fps
720p @ 240 fps
Samsung S5KGM1 is also available		-Secondary rear camera - 2 MP

Ultra-wide camera

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 format1/4"1/4"--
Pixel size1.12 µm
0.001120 mm		1.12 µm
0.001120 mm		--
Aperturef/2.2f/2.2--
Field of view120 °120 °--
Image resolution8 MP8 MP--

Macro camera

Specifications of the macro camera of the device. This type of camera in smartphones is used to snap close-up photos of tiny objects.

Sensor format1/5"1/5"--
Pixel size1.75 µm
0.001750 mm		1.75 µm
0.001750 mm		--
Aperturef/2.4f/2.4--
Image resolution2 MP2 MP--

Depth-sensing camera

Specifications of the depth sensor of the device. Depth sensors measure the distance between the subject and the camera, enabling features such as bokeh in portraits.

Sensor format1/5"1/5"--
Pixel size1.75 µm
0.001750 mm		1.75 µm
0.001750 mm		--
Aperturef/2.4f/2.4--
Image resolution2 MP2 MP--

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 modelOmniVision OV13855OmniVision OV13855--
Sensor typePureCelPureCelCMOS-
Sensor size4.75 x 3.54 mm
0.23 in		4.75 x 3.54 mm
0.23 in		--
Pixel size1.12 µm
0.001120 mm		1.12 µm
0.001120 mm		--
Crop factor7.317.31--
Aperturef/2f/2--
Focal length and 35 mm equivalent3.86 mm
28.21 mm *(35 mm / full frame)		3.86 mm
28.21 mm *(35 mm / full frame)		--
Image resolution4480 x 2957 pixels
13.25 MP		4608 x 2875 pixels
13.25 MP		2560 x 1922 pixels
4.92 MP		1920 x 1088 pixels
2.09 MP
Video resolution1920 x 1080 pixels
2.07 MP		1920 x 1080 pixels
2.07 MP		1280 x 720 pixels
0.92 MP		1280 x 720 pixels
0.92 MP
Video FPS30 fps30 fps30 fps17 fps
FeaturesFace unlockFace unlockFace unlock
HDR		Face unlock

Audio

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

SpeakerLoudspeaker
Earpiece
Stereo speakers		Loudspeaker
Earpiece		Loudspeaker
Earpiece		Loudspeaker
Earpiece
Smart PA
Stereo speakers model - 1217SLS		Smart PA
1217 ultra-linear speaker		--

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/PositioningGРS
А-GРS		GРS
А-GРS
GLОΝАSS		GРS
А-GРS
GLОΝАSS		GРS
А-GРS

Wi-Fi

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

Wi-Fi802.11а
802.11b
802.11g
Wi-Fi Disрlаy
802.11а		802.11а
802.11b
802.11g
Wi-Fi Disрlаy
802.11а
802.11ас 5GНz		802.11b
802.11g
802.11а
802.11ас 5GНz
802.11аd		802.11b
802.11g
802.11а

Bluetooth

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

Version4.24.24.24.2
FeaturesA2DP
EDR
HID
LE		A2DP
EDR
HID
LE		A2DPA2DP

USB

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

Connector typeMicro USBUSB Type-CUSB Type-CMicro USB
Version2.02.02.02.0
FeaturesCharging
Mass storage
On-The-Go		Charging
Mass storage
On-The-Go		Charging
Mass storage		Charging
Mass storage

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
Tethering
VoLTE		Computer sync
OTA sync
Tethering
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		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
eAAC+
FLAC
MIDI
MP3
OGG
WMA
WAV
LDAC		AAC
AAC+
AMR
AMR-WB
eAAC+
FLAC
MIDI
MP3
OGG
WMA
WAV
LDAC		AAC
AAC+
AMR
eAAC+
FLAC
MIDI
MP3
OGG
WMA
WAV		AAC
AAC+
AMR
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
DivX
H.263
H.264
H.265
MKV
MP4
VC-1
Xvid		3GPP
AVI
DivX
H.263
H.264
H.265
MKV
MP4
VC-1
Xvid		3GPP
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

Battery

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

Capacity4000 mAh4000 mAh3300 mAh2700 mAh
TypeLi-IonLi-IonLi-IonLi-Ion
3G talk time--12 h
720 min
0.5 days		7 h
420 min
0.3 days
3G stand-by time--250 h
15000 min
10.4 days		280 h
16800 min
11.7 days
Charger output power9 V / 2 A9 V / 2 A5 V / 1 A5 V / 1 A
Quick charge technologyQualcomm Quick Charge 4.0Qualcomm Quick Charge 4.0--
FeaturesFast charging
Non-removable		Fast charging
Non-removable		Non-removableNon-removable
22.5W charger in the box---

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)--0.556 W/kg-
Body SAR (EU)0.764 W/kg0.644 W/kg0.597 W/kg-
Head SAR (USA)0.064 W/kg---
Body SAR (USA)0.757 W/kg0.617 W/kg--
Head SAR (India)-1.13 W/kg--
Body SAR (India)-0.634 W/kg--

Additional features

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

Additional featuresM1908C3JG - SAR (Specific Absorption Rate) EU: head - 0.191 W/kg; body - 1.034 W/kg
M1908C3JG - SAR (Specific Absorption Rate) US: head - 0.374 W/kg; body - 0.987 W/kg
M1908C3JH - SAR (Specific Absorption Rate) EU: head - 0.191 W/kg; body - 1.089 W/kg
M1908C3JH - SAR (Specific Absorption Rate) US: head - 0.387 W/kg; body - 1.056 W/kg
Anti-splash coating		M1908C3JG - SAR (Specific Absorption Rate) EU: head - 0.191 W/kg; body - 1.034 W/kg
M1908C3JG - SAR (Specific Absorption Rate) US: head - 0.374 W/kg; body - 0.987 W/kg
M1908C3JH - SAR (Specific Absorption Rate) EU: head - 0.191 W/kg; body - 1.089 W/kg
M1908C3JH - SAR (Specific Absorption Rate) US: head - 0.387 W/kg; body - 1.056 W/kg
Anti-splash coating		--
 Xiaomi Redmi Note 8 2021Xiaomi Redmi Note 8Ulefone Note 6PUlefone Note 8

Last viewed devices

List of mobile devices, whose specifications have been recently viewed.

Xiaomi Redmi K90 Pro Max

Xiaomi Redmi K90 Pro Max

Dimensions: 77.82 x 163.33 x 7.9 mm
Weight: 218 g
SoC: Qualcomm Snapdragon 8 Elite Gen 5 (SM8850-AC)
CPU: 2x 4.61 GHz Oryon, 6x 3.63 GHz Oryon, Cores: 8
GPU: Qualcomm Adreno 840 (829), 768 MHz
RAM: 12 GB, 16 GB, 5333 MHz
Storage: 256 GB, 512 GB, 1024 GB
Display: 6.9 in, M10 AMOLED, 1200 x 2608 pixels, 36 bit
Battery: 7560 mAh, Li-Polymer
OS: Xiaomi HyperOS 3.0
Camera: 8120 x 6180 pixels, 7680 x 4320 pixels, 30 fps

Xiaomi Mi 3 TD

Xiaomi Mi 3 TD

Dimensions: 73.6 x 144 x 8.1 mm
Weight: 145 g
SoC: Nvidia Tegra 4 AP40
CPU: 4x ARM Cortex-A15, 1x ARM Cortex-A9, 1800 MHz, Cores: 5
GPU: GeForce, 672 MHz
RAM: 2 GB, 933 MHz
Storage: 16 GB, 64 GB
Display: 5 in, IPS, 1080 x 1920 pixels, 24 bit
Battery: 3050 mAh, Li-Ion
OS: Android 4.2.2 Jelly Bean
Camera: 4208 x 2368 pixels, 1920 x 1080 pixels, 30 fps

Xiaomi Redmi A7 Pro

Xiaomi Redmi A7 Pro

Dimensions: 79.47 x 171.56 x 8.15 mm
Weight: 208 g
SoC: Unisoc T7250
CPU: 2x 1.8 GHz ARM Cortex-A75, 6x 1.6 GHz ARM Cortex-A55, Cores: 8
GPU: ARM Mali-G57 MP1, 850 MHz
RAM: 4 GB, 1800 MHz
Storage: 64 GB, 128 GB
Display: 6.9 in, IPS, 720 x 1640 pixels, 24 bit
Battery: 6000 mAh, Li-Polymer
OS: Xiaomi HyperOS 3
Camera: 4130 x 3120 pixels, 1920 x 1080 pixels, 30 fps

Xiaomi Mi 2a

Xiaomi Mi 2a

Dimensions: 66.5 x 133 x 9.5 mm
Weight: 133 g
SoC: Qualcomm Snapdragon S4 Pro (MSM8260A Pro)
CPU: 2x 1.7 GHz Krait 300, Cores: 2
GPU: Qualcomm Adreno 320, 400 MHz
RAM: 1 GB, 500 MHz
Storage: 16 GB
Display: 4.5 in, IPS, 720 x 1280 pixels, 24 bit
Battery: 2030 mAh, Li-Ion
OS: MIUI V5 (Android 4.1.1 Jelly Bean)
Camera: 3264 x 2448 pixels, 1920 x 1080 pixels, 30 fps

Asus ZenWatch

Asus ZenWatch

Dimensions: 39.8 x 50.6 x 9.4 mm
Weight: 75 g
SoC: Qualcomm Snapdragon 400 (APQ8026)
CPU: 4x 1.2 GHz ARM Cortex-A7, Cores: 4
GPU: Qualcomm Adreno 305, 450 MHz
RAM: 512 MB, 533 MHz
Storage: 4 GB
Display: 1.63 in, AMOLED, 320 x 320 pixels, 24 bit
Battery: 370 mAh, Li-Polymer
OS: Android Wear