Comparison of Apple iPhone 8 128Gb and Xiaomi Redmi 4A smartphones based on their characteristics

Apple iPhone 8 128Gb

Xiaomi Redmi 4A

Manufacturer and Model

Manufacturer

Apple

Xiaomi

Phone model

iPhone 8 128Gb

Redmi 4A

Year of release

2017

2016

Appearance

Case type

Monoblock

Monoblock

Body length

138 mm

140 mm

Body width

67 mm

70 mm

Body thickness

7.3 mm

8.5 mm

Weight

148 g

132 g

Volume

68 cm³

83.48 cm³

Body materials and finishes

• Aluminium alloy

• Metal
• Plastic

Colors

• Black
• Light gray
• Golden

• Pink
• Golden

Processor (CPU)

Processor model

• Apple A11 Bionic

• Qualcomm Snapdragon 425 MSM8917

CPU clock speed

2100 MHz

1400 MHz

Number of processor cores

6

4

Processor size

64 bits

Instruction set architecture

ARMv8

Manufacturing process

28 nm

Graphics Processor (GPU)

GPU

GPU model

• Adreno 308

GPU clock speed

500 MHz

Primary storage (RAM)

The amount of RAM

2 GB

2 GB

RAM type

LPDDR3

RAM frequency

667 MHz

Number of RAM channels

1

Internal storage

Built-in memory

• 128 GB

• 16 GB

SD card

Types of Supported Memory Cards

• microSDXC
• microSDHC
• microSD

Maximum expandable memory

128 GB

Hot swappable memory card

Mainboard

Chipset

• Qualcomm Snapdragon 425 MSM8917

Operating system

Operating system

iOS 11

Android 6.0

Battery

Battery capacity

1821

3120

Battery type

Li-Ion

Li-Ion

Wireless battery charging

Charging the battery from USB

Adapter output power

• 5 V / 1 A

Call duration in GSM networks

14 h

Call duration in UMTS (WCDMA) networks

14 h

Duration of listening to music

40 h

Video watching duration

13 h

Duration of using Wi-Fi

12 h

Screen

Screen diagonal

4.7 in

5 in

Screen resolution

1334 x 750 pixels

1280 x 720 pixels

Resolution formats

• HD

• HD

Pixel density

326 ppi

294 ppi

Screen technology

IPS

S-IPS

Color depth

24 bit

24 bit

Touch screen

Touch screen type

Capacitive

Capacitive

Anti-scratch screen

Glass screen

Aspect ratio

1.779

1.778

Contrast ratio

1000:1

Auto-rotate screen

Ambient light sensor

Proximity sensor

Main photo/video camera

Camera megapixels

12 Mp

13 Mp

Maximum photo resolution

4619 x 2598 pixels

4807 x 2704 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

4 LEDs

LED

Digital zoom

5 X

Photomatrix type

CMOS

Aperture

f/2.2

Number of lens elements

5

Shooting settings

Autofocus

Auto exposure

Face detector

Smile detector

Panoramic photography

HDR photography

Viewfinder

Continuous photography

Touch focus

Exposure compensation

Self-timer

Optical image stabilization

White balance

ISO setting

Scene selection

Other photo settings

• Serial shooting
• Panoramic shooting
• Hdr shooting
• Face detection
• Dual optical image stabilization
• Live photos

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

Video capability

Maximum video resolution

3840 x 2160 pixels

1920 x 1080 pixels

Movie speed

60 fps

30 fps

Digital video zoom

6 X

Movie settings

Movie settings list

• White balance
• Color effects
• Scene selection mode

• White balance
• Color effects
• Scene selection mode

Front photo/video camera

Front camera megapixels

7 Mp

5 Mp

Maximum photo resolution

3528 x 1984 pixels

2981 x 1677 pixels

Shooting resolution formats

• Quad HD
• Full HD
• HD

• Quad HD
• Full HD
• HD

Aperture

f/2.2

Front camera video

Maximum video resolution

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

Micro-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

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

CDMA support

CDMA frequencies

• CDMA 800 MHz
• CDMA 1700 MHz
• CDMA 1900 MHz
• CDMA 2100 MHz

• CDMA 800 MHz

CDMA2000 support

UMTS support

UMTS frequencies

• UMTS 850 MHz
• UMTS 900 MHz
• UMTS 1700 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 1800 MHz
• LTE 2100 MHz
• LTE 2600 MHz
• LTE-TDD 1900 MHz
• LTE-TDD 2300 MHz
• LTE-TDD 2500 MHz
• LTE-TDD 2600 MHz

LTE-Advanced support

TDD LTE support

Internet data transmission standards

LTE standards

• LTE Cat 4

CDMA2000 standards

• 1xEV-DO Rev. A

• 1xEV-DO Rev. A

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

Wi-Fi Direct support

Wi-Fi hotspot mode

USB

USB connector

USB connector type

Micro USB

USB standard

2.0

2.0

USB OTG support

USB host support

USB Mass Storage support

Bluetooth

Built-in Bluetooth

Bluetooth standard

5.0

4.1

A2DP support

Other Bluetooth profiles

• HID

Navigation and positioning

Built-in GPS

A-GPS support

Installed GLONASS

Built-in digital compass

Radio

Built-in radio receiver

Sensors and gauges

Ambient light sensor

Proximity sensor

Accelerometer

Orientation and rotation sensor

Gyroscope

Magnetometer

Barometer

Connectors and interfaces

USB connector

Micro USB

TRS jack (mini/micro jack)

3.5 mm

Wireless NFC

Infrared port (IrDA)

Images

Supported image formats

• JPEG

• PNG
• JPEG
• GIF
• BMP

Installed image editor

Geo tags

AirPlay support

Video

Installed video player

Supported video formats

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

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

Video resolution formats

• Ultra HD
• Quad HD
• Full HD
• HD

• Full HD
• HD

Streaming video

Geo tags

Audio

Installed audio player

Supported audio formats

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

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

MP3 support

Built-in stereo speakers

Streaming audio

Dolby Digital support

Dictaphone

Voice notes

TRS jack (mini/micro jack)

3.5 mm

Control elements

Touch input

Multitouch

Pinch zoom

Russified input

Documents and office

Installed Organizer (PIM)

Office document support

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

• ITunes U
• IMovie
• Apple Store
• Apple TV Remote
• Music Memos
• ICloud Drive
• IBooks

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

Software features

Installed browser

• HTML
• WAP

• HTML
• HTML5
• CSS3
• WAP

Receiving and sending SMS

SMS messages

SMS T9 support

SMS output in the form of a chat

MMS support

Impact protection

Waterproof case

Dustproof case

Security

Fingerprint scanner

Remote phone search

Installed VPN

Additional features

Standalone mode (flight mode)

SAR level

SAR level

1.35 W/kg

0.53 W/kg