Comparison between:
- HTC Desire 820
- Xiaomi Mi MIX 2

Brand and model

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

HTC Desire 820Xiaomi Mi MIX 2
HTC Desire 820Xiaomi Mi MIX 2
Prices
Model aliasD820
D820u
D820q
D820mu
Mi Mix Evo
Mi Mix2

Design

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

Width78.74 mm
7.874 cm
0.258 ft
3.1 in
75.5 mm
7.55 cm
0.248 ft
2.972 in
Height157.7 mm
15.77 cm
0.517 ft
6.209 in
151.8 mm
15.18 cm
0.498 ft
5.976 in
Thickness7.74 mm
0.774 cm
0.025 ft
0.305 in
7.7 mm
0.77 cm
0.025 ft
0.303 in
Weight155 g
0.34 lbs
5.47 oz
185 g
0.41 lbs
6.53 oz
Volume96.11 cm³
5.84 in³
88.25 cm³
5.36 in³
ColorsWhite
Gray
Orange
Blue
Pink
Black
White
Body materialsPlasticAluminium alloy
Ceramic

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 cards22
Features-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
CDMA 1900 MHz
CDMA 800 MHz (B10)
TD-SCDMATD-SCDMA 1900 MHz
TD-SCDMA 2000 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
LTELTE 900 MHz
LTE 1800 MHz
LTE 2100 MHz
LTE 2600 MHz
LTE-TDD 1900 MHz (B39)
LTE-TDD 2300 MHz (B40)
LTE-TDD 2600 MHz (B38)
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 850 MHz (B26)
LTE 1900 MHz (B25)
LTE 700 MHz (B12)
LTE 700 MHz (B28)
LTE 800 MHz (B18)
LTE 800 MHz (B19)
LTE 700 MHz (B29)
LTE 2300 MHz (B30)

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+
LTE Cat 12
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 4.4.2 KitKat
Android 5.1 Lollipop
Android 6.0.1 Marshmallow
MIUI V8.5.4 (Android 7.1.1 Nougat)
MIUI V9.1.1 (Android 7.1 Nougat)
MIUI (Android 9.0 Pie)
User interface (UI)Sense 6-

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 615 MSM8939Qualcomm Snapdragon 835 MSM8998
Process technology28 nm10 nm
CPU4x 1.5 GHz ARM Cortex-A53, 4x 1.0 GHz ARM Cortex-A534x 2.45 GHz Kryo 280, 4x 1.9 GHz Kryo 280
CPU bits64 bit64 bit
Instruction setARMv8ARMv8-A
Level 0 cache memory (L0)4 KB + 4 KB-
Level 1 cache memory (L1)16 KB + 16 KB32 KB + 32 KB
Level 2 cache memory (L2)2048 KB
2 MB
3072 KB
3 MB
CPU cores88
CPU frequency1500 MHz2450 MHz
GPUQualcomm Adreno 405Qualcomm Adreno 540
GPU frequency550 MHz710 MHz
RAM capacity2 GB6 GB
RAM typeLPDDR3LPDDR4X
RAM channelsSingle channelDouble channel
RAM frequency800 MHz1866 MHz

Storage

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

Storage16 GB64 GB
128 GB
256 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/technologyLCDJDI IPS
Diagonal size5.5 in
139.7 mm
13.97 cm
5.99 in
152.15 mm
15.21 cm
Width2.7 in
68.49 mm
6.85 cm
2.68 in
68.04 mm
6.8 cm
Height4.79 in
121.76 mm
12.18 cm
5.36 in
136.08 mm
13.61 cm
Aspect ratio1.778:1
16:9
2:1
2:1 (18:9)
Resolution720 x 1280 pixels1080 x 2160 pixels
Pixel density267 ppi
104 ppcm
403 ppi
158 ppcm
Color depth24 bit
16777216 colors
24 bit
16777216 colors
Display area67.38 %81.05 %
Other featuresCapacitive
Multi-touch
Capacitive
Multi-touch
Scratch resistant
OGS (One Glass Solution)Corning Gorilla Glass 4
1500:1 contrast ratio
450 cd/m²

Sensors

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

SensorsProximity
Light
Accelerometer
Compass
Light
Accelerometer
Compass
Gyroscope
Barometer
Fingerprint
Hall
Ultrasonic
-Fingerprint sensor model - Fingerprint Cards / Goodix

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 IMX386 Exmor RS
Sensor typeCMOS BSICMOS
Sensor size-4.96 x 3.72 mm
0.24 in
Pixel size-1.24 µm
0.001240 mm
Crop factor-6.98
ISO-100 - 3200
Aperturef/2.2f/2
Focal length and 35 mm equivalent28 mm *(35 mm / full frame)4.5 mm
31.4 mm *(35 mm / full frame)
Number of lenses-5
Flash typeLEDDual LED
Image resolution4224 x 2368 pixels
10 MP
4000 x 3000 pixels
12 MP
Video resolution1920 x 1080 pixels
2.07 MP
3840 x 2160 pixels
8.29 MP
Video 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
Geotagging
Panorama
HDR
Touch focus
Face detection
White balance settings
ISO settings
Exposure compensation
Self-timer
Scene mode
Phase detection autofocus (PDAF)
-4-axis OIS
720p @ 120 fps

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 model-OmniVision OV5675
Sensor typeCMOSPureCel
Sensor size-2.98 x 2.21 mm
0.15 in
Pixel size-1.151 µm
0.001151 mm
Crop factor-11.66
Aperturef/2.3f/2
Focal length and 35 mm equivalent-3.5 mm
40.82 mm *(35 mm / full frame)
Image resolution3264 x 2448 pixels
7.99 MP
2592 x 1944 pixels
5.04 MP
Video resolution1920 x 1080 pixels
2.07 MP
1920 x 1080 pixels
2.07 MP
Video FPS30 fps30 fps

Audio

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

SpeakerLoudspeaker
Earpiece
Stereo speakers
Loudspeaker
Earpiece
-192 kHz / 24-bit
Dual ADC HD recording
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

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
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
-2x2 MiMO

Bluetooth

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

Version4.05.0
FeaturesA2DPA2DP

USB

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

Connector typeMicro USBUSB Type-C
Version2.02.0
FeaturesCharging
Mass storage
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
DLNA
Computer sync
OTA sync
Tethering
NFC
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
AMR
aptX
FLAC
M4A
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
3GPP2
AVI
MP4
WMV
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.

Capacity2600 mAh3400 mAh
TypeLi-PolymerLi-Polymer
2G talk time22 h 24 min
22.4 h
1344 min
0.9 days
-
2G stand-by time424 h
25440 min
17.7 days
-
3G talk time22 h 24 min
22.4 h
1344 min
0.9 days
-
3G stand-by time424 h
25440 min
17.7 days
-
Charger output power5 V / 1 A5 V / 3 A
9 V / 2 A
12 V / 1.5 A
Quick charge technology-Qualcomm Quick Charge 3.0
FeaturesNon-removableFast charging
Non-removable

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)0.373 W/kg0.39 W/kg
Body SAR (EU)0.323 W/kg1.77 W/kg
Head SAR (USA)0.203 W/kg-
Body SAR (USA)0.316 W/kg-
 HTC Desire 820Xiaomi Mi MIX 2