Comparison of Watchtech V3 and Xiaomi redmi note 7 64Gb smartphones based on their characteristics

Watchtech V3

Xiaomi redmi note 7 64Gb

Manufacturer and Model

Manufacturer

Watchtech

Xiaomi

Phone model

V3

redmi note 7 64Gb

Year of release

2011

2019

Appearance

Case type

Watch

Monoblock

Body length

60 mm

159 mm

Body width

50 mm

75 mm

Body thickness

11 mm

8.1 mm

Weight

48 g

186 g

Volume

33 cm³

96.97 cm³

Body materials and finishes

• Plastic

• Aluminium alloy
• Plastic

Colors

• White
• Olive

• Black

Processor (CPU)

Processor model

• Qualcomm Snapdragon 660 AIE

CPU clock speed

2200 MHz

Number of processor cores

1

8

Processor size

64 bits

Instruction set architecture

ARMv8

Manufacturing process

14 nm

Graphics Processor (GPU)

GPU

GPU model

• Qualcomm Adreno 512

Primary storage (RAM)

The amount of RAM

6 GB

RAM frequency

1866 MHz

Number of RAM channels

2

Internal storage

Built-in memory

• 505 kB

• 64 GB

SD card

Types of Supported Memory Cards

• microSD

• microSDXC
• microSDHC
• microSD

Maximum expandable memory

4 GB

256 GB

Hot swappable memory card

Mainboard

Chipset

• Qualcomm Snapdragon 660 MSM8976 Plus

Operating system

Operating system

Android 9.0

Battery

Battery capacity

350

4000

Battery type

Li-Ion

Li-Ion

Charging the battery from USB

Fast battery charging

Fast charging technology

Qualcomm Quick Charge 4.0

Adapter output power

• 5 V / 2 A

Call duration in GSM networks

1 h

23 h

Standby time in GSM networks

120 h

251 h

Call duration in UMTS (WCDMA) networks

23 h

Standby time on UMTS (WCDMA) networks

251 h

Screen

Screen diagonal

1.5 in

6.3 in

Screen resolution

128 x 128 pixels

2340 x 1080 pixels

Resolution formats

• Full HD
• HD

Pixel density

121 ppi

409 ppi

Screen technology

IPS

Color depth

18 bit

24 bit

Touch screen

Touch screen type

Resistive

Capacitive

Anti-scratch screen

Glass screen

Aspect ratio

1

2.167

2.5D curved screen

Contrast ratio

1500:1

Screen brightness

450 cd/m²

Auto-rotate screen

Ambient light sensor

Proximity sensor

Main photo/video camera

Camera megapixels

1.3 Mp

48 Mp

Maximum photo resolution

1280 x 1024 pixels

9238 x 5196 pixels

Shooting resolution formats

• Full Ultra HD
• Ultra HD
• Quad HD
• Full HD
• HD

Dual camera

The presence of a flash

Flash type

Dual LED

Photomatrix model

Samsung Bright GM1

Aperture

f/1.8

Number of lens elements

6

Shooting settings

Autofocus

Phase detection autofocus

Face detector

Panoramic photography

HDR photography

Viewfinder

Continuous photography

Touch focus

Exposure compensation

Self-timer

Digital image stabilization

White balance

ISO setting

Scene selection

Other photo settings

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

Video capability

Maximum video resolution

1920 x 1080 pixels

Movie speed

30 fps

Movie settings

Movie settings list

• White balance
• Color effects
• Scene selection mode

Front photo/video camera

Front camera megapixels

13 Mp

Maximum photo resolution

4807 x 2704 pixels

Shooting resolution formats

• Ultra HD
• Quad HD
• Full HD
• HD

Photomatrix model

OmniVision OV13855

Photomatrix type

PureCel

Photomatrix size

4.75 x 3.54 mm

Photomatrix pixel size

1.142 μm

Crop factor

7.31

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

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

Ability to mute the microphone during a call

Extended phone book

Contacts in the phone book

250

Unlimited

Data exchange between SIM card and internal memory

Mobile communications

Cellular generation

2.5G

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

CDMA2000 support

UMTS support

UMTS frequencies

• 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 850 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

CDMA2000 standards

• 1xEV-DO Rev. A

Data transmission standards

• EDGE
• GPRS

• HSPA+
• HSUPA
• HSDPA
• EDGE
• GPRS

Wi-Fi

Built-in Wi-Fi

Wi-Fi standards

• 802.11a
• 802.11b
• 802.11g
• 802.11n
• 802.11n 5GHz
• 802.11ac

Wi-Fi Direct support

Wi-Fi hotspot mode

Dual band Wi-Fi

USB

USB connector

USB connector type

USB Type-C

USB standard

2.0

USB OTG support

USB host support

USB Mass Storage support

Bluetooth

Built-in Bluetooth

Bluetooth standard

5.0

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

Radio recording

Sensors and gauges

Ambient light sensor

Proximity sensor

Accelerometer

Orientation and rotation sensor

Gyroscope

Magnetometer

Connectors and interfaces

USB connector

USB Type-C

TRS jack (mini/micro jack)

3.5 mm

Infrared port (IrDA)

Images

Supported image formats

• JPG
• GIF

• PNG
• JPEG
• GIF
• BMP

Installed image editor

Geo tags

Video

Installed video player

Supported video formats

• MPEG-4
• 3GPP

• MP4
• MPEG-4
• MKV
• AVI
• 3GPP
• 3GPP
• Xvid
• H.263
• H.264
• H.265
• WMV

Video resolution formats

• Full HD
• HD

Streaming video

Geo tags

Audio

Installed audio player

Supported audio formats

• MIDI
• MP3

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

MP3 support

Streaming audio

Number of polyphony voices

64

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

Handwriting recognition

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

Software features

Installed browser

• HTML
• WAP

• HTML
• HTML5
• CSS3
• WAP

Installed games

Receiving and sending SMS

SMS messages

SMS T9 support

SMS output in the form of a chat

MMS support

Security

Fingerprint scanner

Face scanner

Installed VPN

Additional features

Standalone mode (flight mode)

SAR level

SAR level

0.59 W/kg