Comparison between:
- Nokia 5.1
- Nokia X2
- Nokia 2.2
- Xiaomi Redmi 8A

Brand and model

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

Nokia 5.1Nokia X2Nokia 2.2Xiaomi Redmi 8A
Nokia 5.1
Prices
Nokia X2
Prices
Nokia 2.2
Prices
Xiaomi Redmi 8A
Model alias5 (2018)
5 2018
5.1 Android One
TA-1061
TA-1075
TA-1076
TA-1081
TA-1088
RM-1013TA-1179
TA-1183
TA-1188
TA-1191
Redmi8A
Red Rice 8A
Red Rice8A
MZB8298IN
M1908C3KG
M1908C3KH

Design

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

Width70.73 mm
7.073 cm
0.232 ft
2.785 in
68.3 mm
6.83 cm
0.224 ft
2.689 in
70.56 mm
7.056 cm
0.231 ft
2.778 in
75.41 mm
7.541 cm
0.247 ft
2.969 in
Height151.1 mm
15.11 cm
0.496 ft
5.949 in
121.7 mm
12.17 cm
0.399 ft
4.791 in
145.96 mm
14.596 cm
0.479 ft
5.746 in
156.48 mm
15.648 cm
0.513 ft
6.161 in
Thickness8.27 mm
0.827 cm
0.027 ft
0.326 in
11.1 mm
1.11 cm
0.036 ft
0.437 in
9.3 mm
0.93 cm
0.031 ft
0.366 in
9.4 mm
0.94 cm
0.031 ft
0.37 in
Weight-149 g
0.33 lbs
5.27 oz
153 g
0.34 lbs
5.4 oz
188 g
0.41 lbs
6.63 oz
Volume88.38 cm³
5.37 in³
92.26 cm³
5.6 in³
95.78 cm³
5.82 in³
110.92 cm³
6.74 in³
ColorsBlue
Black
Copper
Green
Yellow
Black
White
Gray
Orange
Black
Gray
Midnight Black
Ocean Blue
Sunset Red
Body materialsAluminium alloy-PolycarbonatePlastic

SIM card

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

SIM card typeNano-SIM
Nano-SIM / microSD
Micro-SIMNano-SIMNano-SIM
Number of SIM cards2222
Features-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.

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 (B5)
GSM 900 MHz (B8)
GSM 1800 MHz (B3)
GSM 1900 MHz (B2)
W-CDMA---W-CDMA 850 MHz (B5)
W-CDMA 900 MHz (B8)
W-CDMA 1900 MHz (B2)
W-CDMA 2100 MHz (B1)
UMTSUMTS 850 MHz
UMTS 900 MHz
UMTS 1700/2100 MHz
UMTS 1900 MHz
UMTS 2100 MHz
UMTS 900 MHz
UMTS 2100 MHz
UMTS 850 MHz
UMTS 900 MHz
UMTS 2100 MHz
-
LTELTE 700 MHz Class 13
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 2300 MHz (B40)
LTE-TDD 2600 MHz (B38)
LTE 700 MHz (B12)
LTE 700 MHz (B28)
LTE 1700/2100 MHz (B66)
-LTE-TDD 2300 MHz (B40)
LTE-TDD 2600 MHz (B38)
LTE 800 MHz
LTE 850 MHz
LTE 900 MHz
LTE 1800 MHz
LTE 2100 MHz
LTE 2600 MHz
LTE 700 MHz (B28)
LTE-FDD 850 MHz (B5)
LTE-FDD 900 MHz (B8)
LTE-FDD 1800 MHz (B3)
LTE-FDD 2100 MHz (B1)
LTE-TDD 2300 MHz (B40)
LTE-TDD 2500 MHz (B41)

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 4
UMTS
EDGE
GPRS
HSPA+
UMTS
EDGE
GPRS
HSPA+
LTE Cat 4
UMTS
EDGE
GPRS
HSPA+
LTE
EV-DO Rev. A

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
Nokia X 2.0 (Android 4.3 Jelly Bean AOSP)Android One (Android 9.0 Pie)MIUI 10 (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 P18 (MT6755S)Qualcomm Snapdragon 200 MSM8210MediaTek Helio A22 (MT6761)Qualcomm Snapdragon 439
Process technology28 nm28 nm12 nm12 nm
CPU4x 2.0 GHz ARM Cortex-A53, 4x 1.2 GHz ARM Cortex-A53ARM Cortex-A7ARM Cortex-A534x 1.95 GHz ARM Cortex-A53, 4x 1.45 GHz ARM Cortex-A53
CPU bits64 bit32 bit64 bit64 bit
Instruction setARMv8-AARMv7ARMv8-AARMv8
Level 1 cache memory (L1)256 KB + 256 KB---
Level 2 cache memory (L2)2048 KB
2 MB
1024 KB
1 MB
--
CPU cores8248
CPU frequency2000 MHz1200 MHz2000 MHz1950 MHz
GPUARM Mali-T860 MP2Qualcomm Adreno 302PowerVR GE8300Qualcomm Adreno 505
GPU cores2---
GPU frequency700 MHz--650 MHz
RAM capacity2 GB
3 GB
1 GB2 GB
3 GB
2 GB
3 GB
RAM typeLPDDR3LPDDR2LPDDR3LPDDR3
RAM channelsSingle channel-Single channelSingle channel
RAM frequency933 MHz-933 MHz933 MHz

Storage

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

Storage16 GB
32 GB
4 GB16 GB
32 GB
32 GB
eMMC 5.1-eMMCeMMC 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/technologyIPSIPSIPSIPS
Diagonal size5.5 in
139.7 mm
13.97 cm
4.3 in
109.22 mm
10.92 cm
5.71 in
145.03 mm
14.5 cm
6.22 in
157.91 mm
15.79 cm
Width2.46 in
62.48 mm
6.25 cm
2.21 in
56.19 mm
5.62 cm
2.44 in
62.09 mm
6.21 cm
2.66 in
67.6 mm
6.76 cm
Height4.92 in
124.95 mm
12.5 cm
3.69 in
93.66 mm
9.37 cm
5.16 in
131.07 mm
13.11 cm
5.62 in
142.71 mm
14.27 cm
Aspect ratio2:1
2:1 (18:9)
1.667:1
5:3
2.111:12.111:1
Resolution1080 x 2160 pixels480 x 800 pixels720 x 1520 pixels720 x 1520 pixels
Pixel density439 ppi
172 ppcm
217 ppi
85 ppcm
295 ppi
115 ppcm
271 ppi
106 ppcm
Color depth24 bit
16777216 colors
24 bit
16777216 colors
24 bit
16777216 colors
24 bit
16777216 colors
Display area73.28 %63.52 %79.27 %82.02 %
Other featuresCapacitive
Multi-touch
Scratch resistant
Capacitive
Multi-touch
Scratch resistant
Capacitive
Multi-touch
Capacitive
Multi-touch
Scratch resistant
Corning Gorilla Glass 3
LTPS (Low Temperature PolySilicon)
ClearBlack displayAlways-On DisplayIn-cell
2.5D curved glass screen
1500:1
70.8% NTSC

Sensors

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

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

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 model---Sony IMX363 Exmor RS
Sensor typeCMOSCMOSCMOSCMOS
Sensor size-3.6 x 2.7 mm
0.18 in
--
Sensor format--1/3"1/2.55"
Pixel size-1.406 µm
0.001406 mm
1.12 µm
0.001120 mm
1.4 µm
0.001400 mm
Crop factor-9.61--
Aperture-f/2.7f/2.2f/1.8
Focal length and 35 mm equivalent-3.13 mm
30.11 mm *(35 mm / full frame)
--
Number of lenses---6
Flash typeDual LEDLEDLEDDual LED
Image resolution4608 x 3456 pixels
15.93 MP
2560 x 1920 pixels
4.92 MP
4160 x 3120 pixels
12.98 MP
4032 x 3024 pixels
12.19 MP
Video resolution1920 x 1080 pixels
2.07 MP
1280 x 720 pixels
0.92 MP
1920 x 1080 pixels
2.07 MP
1920 x 1080 pixels
2.07 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
Phase detection autofocus (PDAF)
Autofocus
Digital zoom
Geotagging
Touch focus
Exposure compensation
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
Phase detection autofocus (PDAF)
---Phase detection with Dual Pixel

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 type--CMOSCMOS
Pixel size---1.12 µm
0.001120 mm
Aperturef/2f/2.8-f/2
Image resolution3264 x 2448 pixels
7.99 MP
640 x 480 pixels
0.31 MP
2560 x 1920 pixels
4.92 MP
3264 x 2448 pixels
7.99 MP
Video resolution1280 x 720 pixels
0.92 MP
640 x 480 pixels
0.31 MP
1920 x 1080 pixels
2.07 MP
1280 x 720 pixels
0.92 MP
Video FPS30 fps-30 fps-
Features--Face unlockFace unlock

Audio

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

SpeakerLoudspeaker
Earpiece
Loudspeaker
Earpiece
Loudspeaker
Earpiece
Loudspeaker
Earpiece
---Smart PA
0.82 CC acoustic chamber

Radio

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

RadioYesYesYesYes
RDSRDS--

Tracking/Positioning

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

Tracking/PositioningGPS
A-GPS
GLONASS
BeiDou
GPS
A-GPS
GLONASS
Wi-Fi
Cell ID
BeiDou
GPS
A-GPS
GLONASS
GPS
A-GPS
GLONASS

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
802.11b
802.11g
802.11n
Wi-Fi Hotspot
802.11a
802.11b
802.11g
802.11n
Wi-Fi Hotspot
Wi-Fi Direct
802.11b
802.11g
802.11n
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.

Version4.24.04.24.2
FeaturesA2DPA2DP
AVRCP
FTP
GAVDP
HFP
HID
HSP
OPP
PAN
PBAP
HS
A2DPA2DP
LE

USB

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

Connector typeMicro USBMicro USBMicro USBUSB Type-C
Version2.02.02.02.0
FeaturesCharging
Mass storage
Charging
Mass storage
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
Computer sync
OTA sync
Tethering
Computer sync
OTA sync
Tethering
VoLTE
Computer sync
OTA sync
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
AAC+
AMR
eAAC+
FLAC
MIDI
MP3
OGG
WMA
WAV
3GPP
AAC
AMR
AMR-WB
eAAC+
FLAC
MIDI
MP3
OGG
WMA
WAV
AAC
AAC+
AMR
eAAC+
FLAC
MIDI
MP3
OGG
WMA
WAV
AAC
AAC+
AMR
AMR-WB
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
MKV
MP4
WMV
Xvid
AVI
H.263
H.264
MP4
MPEG-4
3GPP
AVI
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.

Capacity3000 mAh1800 mAh3000 mAh5000 mAh
TypeLi-PolymerLi-IonLi-PolymerLi-Polymer
2G talk time19 h
1140 min
0.8 days
10 h
600 min
0.4 days
--
2G stand-by time588 h
35280 min
24.5 days
552 h
33120 min
23 days
--
3G talk time19 h
1140 min
0.8 days
13 h
780 min
0.5 days
--
3G stand-by time588 h
35280 min
24.5 days
552 h
33120 min
23 days
--
Charger output power5 V / 2 A-5 V / 1 A5 V / 2 A
9 V / 2 A
Quick charge technology---Qualcomm Quick Charge 3.0
FeaturesNon-removableRemovableRemovableNon-removable
-Battery model: BV-5SBattery model: HQ510-

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)0.29 W/kg0.81 W/kg0.446 W/kg0.231 W/kg
Body SAR (EU)1.8 W/kg0.78 W/kg1.608 W/kg1.48 W/kg
Head SAR (USA)1.1 W/kg0.99 W/kg0.648 W/kg0.478 W/kg
Body SAR (USA)1.08 W/kg0.53 W/kg0.728 W/kg1.074 W/kg

Additional features

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

Additional featuresTA-1061 - SAR (Specific Absorption Rate) EU: head - 0.290 W/kg; body - 1.180 W/kg
TA-1061 - SAR (Specific Absorption Rate) US: head - 1.100 W/kg; body - 1.080 W/kg
TA-1075 - SAR (Specific Absorption Rate) EU: head - 0.290 W/kg; body - 1.180 W/kg
TA-1075 - SAR (Specific Absorption Rate) US: head - 1.100 W/kg; body - 1.080 W/kg
TA-1076 - SAR (Specific Absorption Rate) EU: head - 0.290 W/kg; body - 0.610 W/kg
TA-1081 - SAR (Specific Absorption Rate) EU: head - 0.290 W/kg; body - 1.180 W/kg
TA-1081 - SAR (Specific Absorption Rate) US: head - 1.100 W/kg; body - 1.080 W/kg
TA-1088 - SAR (Specific Absorption Rate) EU: head - 0.290 W/kg; body - 1.180 W/kg
TA-1088 - SAR (Specific Absorption Rate) US: head - 1.100 W/kg; body - 1.080 W/kg
-TA-1179 - SAR (Specific Absorption Rate) EU: head - 0.446 W/kg; body - 1.608 W/kg
TA-1179 - SAR (Specific Absorption Rate) US: head - 0.480 W/kg; body - 1.430 W/kg
TA-1183 - SAR (Specific Absorption Rate) EU: head - 0.446 W/kg; body - 1.608 W/kg
TA-1183 - SAR (Specific Absorption Rate) US: head - 0.648 W/kg; body - 0.728 W/kg
TA-1188 - SAR (Specific Absorption Rate) EU: head - 0.446 W/kg; body - 1.608 W/kg
TA-1188 - SAR (Specific Absorption Rate) US: head - 0.430 W/kg; body - 1.370 W/kg
TA-1191 - SAR (Specific Absorption Rate) EU: head - 0.446 W/kg; body - 1.608 W/kg
TA-1191 - SAR (Specific Absorption Rate) US: head - 0.430 W/kg; body - 1.370 W/kg
MZB8298IN - SAR (Specific Absorption Rate) India: head - 0.339 W/kg; body - 1.000 W/kg
P2i nano-coating
 Nokia 5.1Nokia X2Nokia 2.2Xiaomi Redmi 8A