Comparison of Acer Allegro and Xiaomi Redmi 9 64Gb smartphones based on their characteristics

Acer Allegro

Xiaomi Redmi 9 64Gb

Manufacturer and Model

Manufacturer

Acer

Xiaomi

Phone model

Allegro

Redmi 9 64Gb

Year of release

2011

2020

Appearance

Case type

Monoblock

Monoblock

Body length

116 mm

163 mm

Body width

59 mm

77 mm

Body thickness

12 mm

9.1 mm

Weight

130 g

198 g

Volume

81.99 cm³

114.42 cm³

Body materials and finishes

• Plastic

• Plastic

Colors

• Black
• White

• Gray
• Sea wave
• Violet blue

Processor (CPU)

Processor model

• Qualcomm 8255

• MediaTek Helio G80

CPU clock speed

1000 MHz

2000 MHz

Number of processor cores

1

8

Level 1 cache (L1)

32 + 32 kB

Level 2 cache (L2)

384 kB

Processor size

32 bits

Instruction set architecture

ARMv7

Manufacturing process

45 nm

Graphics Processor (GPU)

GPU

GPU model

• AMD Adreno 205

• Mali-G52 2EEMC2

Primary storage (RAM)

The amount of RAM

512 MB

4 GB

RAM type

LPDDR2

RAM frequency

500 MHz

Number of RAM channels

2

Internal storage

Built-in memory

• 8 GB

• 64 GB

SD card

Types of Supported Memory Cards

• microSDHC
• microSD

• microSDXC
• microSDHC
• microSD

Maximum expandable memory

32 GB

Hot swappable memory card

Mainboard

Chipset

• Qualcomm Snapdragon S2 MSM8255

Operating system

Operating system

Windows Phone 7.5

Android 10.0

Battery

Battery capacity

1300

5020

Battery type

Li-Ion

Li-Ion

Removable battery

Charging the battery from USB

Call duration in GSM networks

6 h

31 h

Standby time in GSM networks

400 h

185 h

Call duration in UMTS (WCDMA) networks

6 h

31 h

Standby time on UMTS (WCDMA) networks

185 h

Screen

Screen diagonal

3.6 in

6.53 in

Screen resolution

800 x 480 pixels

2340 x 1080 pixels

Resolution formats

• Full HD
• HD

Pixel density

259 ppi

395 ppi

Screen technology

TFT

S-IPS

Color depth

18 bit

24 bit

Touch screen

Touch screen type

Capacitive

Capacitive

Anti-scratch screen

Aspect ratio

1.667

2.167

Auto-rotate screen

Ambient light sensor

Proximity sensor

Main photo/video camera

Camera megapixels

5 Mp

13 Mp

Maximum photo resolution

2592 x 1944 pixels

4807 x 2704 pixels

Shooting resolution formats

• Quad HD
• Full HD
• HD

• Ultra HD
• Quad HD
• Full HD
• HD

Dual camera

The presence of a flash

Flash type

LED

LED

Shooting settings

Autofocus

Auto exposure

Face detector

Viewfinder

Digital image stabilization

Other photo settings

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

Video capability

Maximum video resolution

1280 x 720 pixels

1920 x 1080 pixels

Movie speed

30 fps

30 fps

Movie settings

Movie settings list

• White balance
• Color effects
• Scene selection mode

Front photo/video camera

Front camera megapixels

8 Mp

Maximum photo resolution

3771 x 2121 pixels

Shooting resolution formats

• Quad HD
• Full HD
• HD

Front camera video

SIM card and calls

Number of SIM-cards

1

2

Mode of operation of multiple SIM-cards

Alternating

SIM card type

Nano-SIM

MP3 ringtones

Polyphonic ringtones

Vibration mode

Speakerphone

Conference call

Speed dial

Video calls

Second microphone

Autodial

Noise reduction during a call

Sound indication of talk time

Ability to mute the microphone during a call

Extended phone book

Contacts in the phone book

Unlimited

Data exchange between SIM card and internal memory

Mobile communications

Cellular generation

3.5G

4.5G

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 1700 MHz
• UMTS 1900 MHz
• UMTS 2100 MHz

LTE support

Internet data transmission standards

Data transmission standards

• HSDPA
• EDGE
• GPRS

• HSPA+
• HSUPA
• HSDPA
• EDGE
• GPRS

Wi-Fi

Built-in Wi-Fi

Wi-Fi standards

• 802.11b
• 802.11g
• 802.11n

Wi-Fi Direct support

USB

USB connector

USB connector type

Micro USB

USB Type-C

USB standard

2.0

2.0

USB OTG support

USB Mass Storage support

Bluetooth

Built-in Bluetooth

Bluetooth standard

2.1 + EDR

5.0

A2DP support

AVRCP 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 - 108.0

87.5 - 108 МГц

RDS support

DRM support

Radio recording

Sensors and gauges

Ambient light sensor

Proximity sensor

Accelerometer

Orientation and rotation sensor

Magnetometer

Connectors and interfaces

USB connector

Micro USB

USB Type-C

TRS jack (mini/micro jack)

3.5 mm

3.5 mm

Wireless NFC

Images

Supported image formats

• PNG
• JPEG
• GIF
• BMP

Installed image editor

Geo tags

DLNA support

Video

Installed video player

Supported video formats

• MPEG-4
• H.263
• H.264
• WMV

• MP4
• AVI
• 3GPP
• WMV

Video resolution formats

• HD

• Full HD
• HD

Streaming video

Geo tags

Audio

Installed audio player

Supported audio formats

• AAC
• eAAC+
• MP3
• WMA
• WAV

• AAC
• MIDI
• MP3
• WMA
• WAV

MP3 support

Streaming audio

Number of polyphony voices

64

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

Synchronization over the mobile network

OTA sync

Synchronization with services

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

Software features

Installed browser

• HTML
• HTML5
• WAP

• HTML
• WAP

Receiving and sending SMS

SMS messages

SMS T9 support

SMS output in the form of a chat

MMS support

Security

Installed VPN

Additional features

Standalone mode (flight mode)

SAR level

SAR level

0.55 W/kg