Comparison of Alcatel A7 and HTC Desire 820 S Dual Sim smartphones based on their characteristics

Alcatel A7

HTC Desire 820 S Dual Sim

Manufacturer and Model

Manufacturer

Alcatel

HTC

Phone model

A7

Desire 820 S Dual Sim

Year of release

2017

2015

Appearance

Case type

Monoblock

Monoblock

Body length

153 mm

158 mm

Body width

77 mm

79 mm

Body thickness

9 mm

7.7 mm

Weight

164 g

165 g

Volume

105.13 cm³

95.57 cm³

Body materials and finishes

• Plastic

• Aluminium alloy
• Plastic

Colors

• Black

• White
• Gray

Processor (CPU)

Processor model

• MediaTek MT6750T

• MediaTek MT6752

CPU clock speed

1500 MHz

1700 MHz

Number of processor cores

8

8

Level 1 cache (L1)

32 + 32 kB

32 + 32 kB

Level 2 cache (L2)

512 kB

512 kB

Processor size

64 bits

64 bits

Instruction set architecture

ARMv8-A

ARMv8-A

Manufacturing process

28 nm

28 nm

Graphics Processor (GPU)

GPU

GPU model

• ARM Mali-T860 MP2

• Mali-T760

GPU clock speed

650 MHz

700 MHz

Number of GPU cores

2

2

Primary storage (RAM)

The amount of RAM

3 GB

2 GB

RAM type

LPDDR3

LPDDR3

RAM frequency

833 MHz

800 MHz

Number of RAM channels

1

1

Internal storage

Built-in memory

• 32 GB

• 16 GB

SD card

Types of Supported Memory Cards

• microSDXC
• microSDHC
• microSD

• microSDXC
• microSDHC
• microSD

Maximum expandable memory

128 GB

Hot swappable memory card

Mainboard

Chipset

• MediaTek MT6750T

• MediaTek MT6752

Operating system

Operating system

Android 7.0

Android 4.4

Battery

Battery capacity

4000

2600

Battery type

Li-Ion

Li-Pol

Charging the battery from USB

Fast battery charging

Adapter output power

• 9 V / 1.7 A

Call duration in GSM networks

18 h

22 h

Standby time in GSM networks

667 h

424 h

Call duration in UMTS (WCDMA) networks

18 h

22 h

Standby time on UMTS (WCDMA) networks

667 h

424 h

Screen

Screen diagonal

5.5 in

5.5 in

Screen resolution

1920 x 1080 pixels

1280 x 720 pixels

Resolution formats

• Full HD
• HD

• HD

Pixel density

401 ppi

267 ppi

Screen technology

IPS

Color depth

24 bit

24 bit

Touch screen

Touch screen type

Capacitive

Capacitive

Anti-scratch screen

Glass screen

Aspect ratio

1.778

1.778

2.5D curved screen

Auto-rotate screen

Ambient light sensor

Proximity sensor

Main photo/video camera

Camera megapixels

16 Mp

13 Mp

Maximum photo resolution

5333 x 3000 pixels

4160 x 3120 pixels

Shooting resolution formats

• Ultra HD
• Quad HD
• Full HD
• HD

• Ultra HD
• Quad HD
• Full HD
• HD

The presence of a flash

Flash type

Dual LED

LED

Photomatrix type

CMOS

CMOS BSI

Aperture

f/2

f/2.2

Shooting settings

Autofocus

Phase detection autofocus

Face detector

Panoramic photography

HDR photography

Viewfinder

Continuous photography

Touch focus

Exposure compensation

Self-timer

White balance

ISO setting

Scene selection

Other photo settings

• Serial shooting
• Panoramic shooting
• Hdr shooting
• Face detection

• Serial shooting
• Panoramic shooting
• Hdr shooting
• Face detection

Video capability

Maximum video resolution

1920 x 1080 pixels

1920 x 1080 pixels

Movie speed

30 fps

30 fps

Movie settings

Movie settings list

• White balance
• Color effects
• Scene selection mode

• White balance
• Color effects
• Hdr

Front photo/video camera

Front camera megapixels

8 Mp

8 Mp

Maximum photo resolution

3771 x 2121 pixels

3771 x 2121 pixels

Shooting resolution formats

• Quad HD
• Full HD
• HD

• Quad HD
• Full HD
• HD

Photomatrix type

CMOS

Front camera video

Maximum video resolution

1280 x 720 pixels

1920 x 1080 pixels

SIM card and calls

Number of SIM-cards

1

2

Mode of operation of multiple SIM-cards

Alternating

Alternating

SIM card type

Nano-SIM

Nano-SIM

MP3 ringtones

Polyphonic ringtones

Vibration mode

Speakerphone

Conference call

Speed dial

Video calls

Second microphone

Noise reduction during a call

Ability to mute the microphone during a call

Extended phone book

Contacts in the phone book

Unlimited

Unlimited

Data exchange between SIM card and internal memory

Mobile communications

Cellular generation

4.5G

4G

GSM support

GSM frequencies

• GSM 850 MHz
• GSM 900 MHz
• GSM 1800 MHz
• GSM 1900 MHz

• GSM 850 MHz
• GSM 900 MHz
• GSM 1800 MHz
• GSM 1900 MHz

UMTS support

UMTS frequencies

• UMTS 850 MHz
• UMTS 900 MHz
• UMTS 1900 MHz
• UMTS 2100 MHz

• UMTS 850 MHz
• UMTS 900 MHz
• UMTS 1900 MHz
• UMTS 2100 MHz

TD-SCDMA support

TD-SCDMA frequencies

• TD-SCDMA MHz
• TD-SCDMA MHz
• TD-SCDMA MHz
• TD-SCDMA MHz

LTE support

LTE frequencies

• LTE 800 MHz
• LTE 900 MHz
• LTE 1800 MHz
• LTE 2100 MHz
• LTE 2600 MHz

• LTE 900 MHz
• LTE 1800 MHz
• LTE 2100 MHz
• LTE 2600 MHz
• LTE-TDD 1900 MHz
• LTE-TDD 2300 MHz
• LTE-TDD 2500 MHz
• LTE-TDD 2600 MHz

TDD LTE support

Internet data transmission standards

LTE standards

• LTE Cat 6

• LTE Cat 4

Data transmission standards

• HSPA+
• HSUPA
• HSDPA
• EDGE
• GPRS

• HSPA+
• HSUPA
• HSDPA
• EDGE
• GPRS

Wi-Fi

Built-in Wi-Fi

Wi-Fi standards

• 802.11b
• 802.11g
• 802.11n
• 802.11n 5GHz

• 802.11b
• 802.11g
• 802.11n

Wi-Fi Direct support

Wi-Fi hotspot mode

Dual band Wi-Fi

USB

USB connector

USB connector type

Micro USB

Micro USB

USB standard

2.0

2.0

USB Mass Storage support

Bluetooth

Built-in Bluetooth

Bluetooth standard

4.2

4.0

Bluetooth LE support

A2DP support

Navigation and positioning

Built-in GPS

A-GPS support

Installed GLONASS

Built-in digital compass

Radio

Built-in radio receiver

Radio range

87.5 - 108 МГц

87.5 - 108 МГц

RDS support

Sensors and gauges

Ambient light sensor

Proximity sensor

Accelerometer

Orientation and rotation sensor

Magnetometer

Connectors and interfaces

USB connector

Micro USB

Micro USB

TRS jack (mini/micro jack)

3.5 mm

3.5 mm

Wireless NFC

Images

Supported image formats

• PNG
• JPEG
• GIF
• BMP

• PNG
• JPG
• EXIF
• GIF

Installed image editor

Geo tags

DLNA support

Video

Installed video player

Supported video formats

• MP4
• MPEG-4
• AVI
• 3GPP
• 3GPP
• H.263
• H.264
• WMV

• MP4
• MPEG-4
• AVI
• 3GPP
• 3GPP2
• WMV

Video resolution formats

• Full HD
• HD

• Full HD
• HD

Streaming video

Geo tags

Audio

Installed audio player

Supported audio formats

• AAC
• AAC+
• eAAC+
• AMR
• AMR-NB
• FLAC
• MIDI
• MP3
• OGG
• WMA
• WAV

• AAC
• AMR
• AMR-NB
• FLAC
• M4A
• MIDI
• MP3
• OGG
• WMA
• WAV

MP3 support

Built-in stereo speakers

Streaming audio

Dictaphone

Voice notes

TRS jack (mini/micro jack)

3.5 mm

3.5 mm

Control elements

Touch input

Multitouch

Pinch zoom

Russified input

Documents and office

Installed Organizer (PIM)

Office document support

Supported document formats

• PDF

Email

IMAP4 protocol support

Convert speech to text

Connectivity and synchronization

PC connection

Tethering support

Synchronization over the mobile network

OTA sync

Synchronization with services

• Gmail
• Gtalk
• Facebook
• Twitter
• Youtube
• Google search
• Google maps

• Gmail
• Gtalk
• Facebook
• Twitter
• Youtube
• Google search
• Google maps

Software features

Installed browser

• HTML
• HTML5
• CSS3
• WAP

• HTML
• HTML5
• CSS3
• WAP

Receiving and sending SMS

SMS messages

SMS T9 support

SMS output in the form of a chat

MMS support

Security

Fingerprint scanner

Installed VPN

Additional features

Standalone mode (flight mode)