Comparison between:
- Vsmart Joy 1
- Xiaomi Redmi 6A

Brand and model

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

Vsmart Joy 1Xiaomi Redmi 6A
Vsmart Joy 1Xiaomi Redmi 6A
Prices
Model aliasJoy1
PQ4001
Redmi6A

Design

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

Width70.94 mm
7.094 cm
0.233 ft
2.793 in
71.5 mm
7.15 cm
0.235 ft
2.815 in
Height144.58 mm
14.458 cm
0.474 ft
5.692 in
147.5 mm
14.75 cm
0.484 ft
5.807 in
Thickness8.3 mm
0.83 cm
0.027 ft
0.327 in
8.3 mm
0.83 cm
0.027 ft
0.327 in
Weight150 g
0.33 lbs
5.29 oz
145 g
0.32 lbs
5.11 oz
Volume85.13 cm³
5.17 in³
87.53 cm³
5.32 in³
ColorsBlack
White
Gold
Rose-gold
Blue
Gray
Body materialsPlasticPolycarbonate

SIM card

The Subscriber Identity Module (SIM) is used in mobile devices for storing data authenticating the subscribers of mobile services.

SIM card typeNano-SIM
Nano-SIM / microSD
Nano-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
TD-SCDMA-TD-SCDMA 1880-1920 MHz
TD-SCDMA 2010-2025 MHz
UMTSUMTS 900 MHz
UMTS 2100 MHz
UMTS 850 MHz
UMTS 900 MHz
UMTS 1900 MHz
UMTS 2100 MHz
LTELTE 800 MHz
LTE 900 MHz
LTE 1800 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
LTE 900 MHz
LTE 1800 MHz
LTE 2100 MHz
LTE 2600 MHz

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 4
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)VOS (Android 8.1 Oreo)MIUI V9.6 (Android 8.1 Oreo)
MIUI V10.0 (Android 8.1 Oreo)
MIUI (Android 9.0 Pie)

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 435 MSM8940MediaTek Helio A22 (MT6761)
Process technology28 nm12 nm
CPU4x 1.4 GHz ARM Cortex-A53, 4x 1.1 GHz ARM Cortex-A53ARM Cortex-A53
CPU bits64 bit64 bit
Instruction setARMv8ARMv8-A
CPU cores84
CPU frequency1400 MHz2000 MHz
GPUQualcomm Adreno 505PowerVR GE8300
GPU frequency450 MHz-
RAM capacity3 GB2 GB
3 GB
4 GB
RAM typeLPDDR3LPDDR3
RAM channelsSingle channelSingle channel
RAM frequency800 MHz933 MHz

Storage

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

Storage32 GB16 GB
32 GB
64 GB
-eMMC 5.1

Memory cards

Memory cards are used in mobile devices for expanding their external storage capacity.

TypesmicroSD
microSDHC
microSDXC
microSD
microSDHC
microSDXC

Display

The display of a mobile device is characterized by its technology, resolution, pixel density, diagonal length, color depth, etc.

Type/technologyIPSIPS
Diagonal size5.45 in
138.43 mm
13.84 cm
5.45 in
138.43 mm
13.84 cm
Width2.44 in
61.91 mm
6.19 cm
2.44 in
61.91 mm
6.19 cm
Height4.87 in
123.82 mm
12.38 cm
4.87 in
123.82 mm
12.38 cm
Aspect ratio2:1
2:1 (18:9)
2:1
2:1 (18:9)
Resolution720 x 1440 pixels720 x 1440 pixels
Pixel density295 ppi
115 ppcm
295 ppi
115 ppcm
Color depth24 bit
16777216 colors
24 bit
16777216 colors
Display area74.98 %72.92 %
Other featuresCapacitive
Multi-touch
Capacitive
Multi-touch
2.5D curved glass screen
450 cd/m²
85% NTSC
2.5D curved glass screen
1000:1 contrast ratio

Sensors

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

SensorsProximity
Light
Accelerometer
Fingerprint
Proximity
Light
Accelerometer
Compass

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 modelSamsung S5K3L6-
Sensor typeISOCELLCMOS
Sensor format1/3.1"-
Pixel size1.12 µm
0.001120 mm
-
ISO100 - 1600-
Aperturef/2f/2.2
Shutter speed1/2 - 1/6400-
Focal length and 35 mm equivalent-3.79 mm
Number of lenses55
Flash typeLEDDual LED
Image resolution4160 x 3120 pixels
12.98 MP
4160 x 3120 pixels
12.98 MP
Video resolution1920 x 1080 pixels
2.07 MP
1920 x 1080 pixels
2.07 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
RAW
Phase detection autofocus (PDAF)
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)

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 modelHynix Hi-556-
Sensor format1/5"-
Pixel size1.12 µm
0.001120 mm
-
Aperturef/2f/2.2
Auxiliary lightLED-
Image resolution2592 x 1944 pixels
5.04 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
FeaturesFace unlockFace unlock

Audio

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

SpeakerLoudspeaker
Earpiece
Loudspeaker
Earpiece
Smart PA-

Radio

The radio in a mobile device is a built-in FM radio receiver.

RadioYesYes

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-Fi802.11b
802.11g
802.11n
802.11n 5GHz
802.11ac
Dual band
Wi-Fi Hotspot
802.11b
802.11g
802.11n
Wi-Fi Hotspot
Wi-Fi Direct
Wi-Fi Display

Bluetooth

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

Version4.24.2
FeaturesA2DPA2DP
HID

USB

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

Connector typeUSB Type-CMicro USB
Version2.02.0
FeaturesCharging
Mass storage
On-The-Go
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 jackYesYes

Connectivity

Information about other important connectivity technologies supported by the devices.

ConnectivityComputer sync
OTA sync
Tethering
Computer sync
OTA sync
Tethering
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
eAAC+
FLAC
M4A
MIDI
MP3
OGG
WMA
WAV
AAC
AAC+
AC3
AMR
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
AVI
Flash Video
MKV
QuickTime
MP4
WebM
WMV
Xvid
3GPP
AVI
H.263
H.264
MKV
MP4
VC-1
VP8
Xvid

Battery

The batteries of mobile devices differ in capacity and technology. They provide the electrical charge needed for the functioning of the devices.

Capacity3000 mAh3000 mAh
TypeLi-IonLi-Polymer
Charger output power5 V / 1 A5 V / 1 A
FeaturesNon-removableNon-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)-0.656 W/kg
Body SAR (EU)-1.523 W/kg
Head SAR (USA)-0.78 W/kg
Body SAR (USA)-1.17 W/kg

Additional features

Some devices have additional features, different from the standard ones above, but equally important and worth mentioning.

Additional features-M1804C3CG - SAR (Specific Absorption Rate) EU: head - 0.656 W/kg; body - 1.523 W/kg
M1804C3CG - SAR (Specific Absorption Rate) US: head - 0.780 W/kg; body - 1.170 W/kg
M1804C3CH - SAR (Specific Absorption Rate) EU: head - 0.442 W/kg; body - 1.356 W/kg
M1804C3CH - SAR (Specific Absorption Rate) US: head - 0.790 W/kg; body - 1.180 W/kg
M1804C3CI - SAR (Specific Absorption Rate) India: head - 0.746 W/kg; body - 0.715 W/kg
 Vsmart Joy 1Xiaomi Redmi 6A