Comparison between:
- UMIDIGI A3
- BLU Advance A5 Plus LTE
- BLU R1 HD (2018)

Brand and model

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

UMIDIGI A3BLU Advance A5 Plus LTEBLU R1 HD (2018)
UMIDIGI A3
Prices
BLU Advance A5 Plus LTE
Prices
BLU R1 HD (2018)
Prices
Model alias--R020P

Design

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

Width70.2 mm
7.02 cm
0.23 ft
2.76 in
-71.1 mm
7.11 cm
0.23 ft
2.8 in
Height147.2 mm
14.72 cm
0.48 ft
5.8 in
-147.3 mm
14.73 cm
0.48 ft
5.8 in
Thickness8.5 mm
0.85 cm
0.03 ft
0.33 in
-7.6 mm
0.76 cm
0.02 ft
0.3 in
Weight186 g
0.41 lbs
6.56 oz
--
Volume87.83 cm³
5.33 in³
-79.6 cm³
4.83 in³
ColorsGray
Gold
GrayBlack
Gold
Gray
Body materialsMetal
Plastic
Aluminium alloyAluminium alloy

SIM card

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

SIM card typeNano-SIMNano-SIM
Nano-SIM / microSD
Nano-SIM
Number of SIM cards221
FeaturesDual 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
GSM 850 MHz
GSM 900 MHz
GSM 1800 MHz
GSM 1900 MHz
W-CDMAW-CDMA 850 MHz
W-CDMA 900 MHz
W-CDMA 1700 MHz
W-CDMA 1900 MHz
W-CDMA 2100 MHz
--
UMTS-UMTS 850 MHz
UMTS 900 MHz
UMTS 1700/2100 MHz
UMTS 1900 MHz
UMTS 2100 MHz
UMTS 850 MHz
UMTS 900 MHz
UMTS 1700/2100 MHz
UMTS 1900 MHz
UMTS 2100 MHz
LTELTE 700 MHz Class 17
LTE 800 MHz
LTE 850 MHz
LTE 900 MHz
LTE 1700/2100 MHz
LTE 1800 MHz
LTE 1900 MHz
LTE 2100 MHz
LTE 2600 MHz
LTE-TDD 2300 MHz (B40)
LTE-TDD 2500 MHz (B41)
LTE-TDD 2600 MHz (B38)
LTE 700 MHz (B12)
LTE 800 MHz (B19)
LTE 700 MHz Class 17
LTE 1700/2100 MHz
LTE 1800 MHz
LTE 1900 MHz
LTE 2100 MHz
LTE 2600 MHz
LTE 700 MHz (B12)
LTE 700 MHz (B28)
LTE 700 MHz Class 17
LTE 850 MHz
LTE 1700/2100 MHz
LTE 1800 MHz
LTE 1900 MHz
LTE 2100 MHz
LTE 2600 MHz
LTE 700 MHz (B12)

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
UMTS
EDGE
GPRS
HSPA+
LTE Cat 4

Operating system

Operating system is the system software, which manages and controls the functioning of the hardware components of the device.

Operating system (OS)Android 8.1 OreoAndroid 7.0 NougatAndroid 7.0 Nougat

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.

SoCMediaTek MT6739MediaTek MT6737MediaTek MT6750
Process technology28 nm28 nm28 nm
CPUARM Cortex-A53ARM Cortex-A534x 1.5 GHz ARM Cortex-A53, 4x 1.0 GHz ARM Cortex-A53
CPU bits64 bit64 bit64 bit
Instruction setARMv8-AARMv8-AARMv8-A
Level 1 cache memory (L1)-32 KB + 32 KB32 KB + 32 KB
Level 2 cache memory (L2)-512 KB
0.5 MB
512 KB
0.5 MB
CPU cores448
CPU frequency1500 MHz1250 MHz1500 MHz
GPUPowerVR GE8100ARM Mali-T720 MP1ARM Mali-T860 MP2
GPU cores-12
GPU frequency570 MHz600 MHz520 MHz
RAM capacity2 GB2 GB2 GB
RAM typeLPDDR3LPDDR3LPDDR3
RAM channelsSingle channelSingle channelSingle channel
RAM frequency667 MHz640 MHz667 MHz

Storage

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

Storage16 GB16 GB16 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
microSD
microSDHC
microSDXC

Display

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

Type/technologyIPSIPSIPS
Diagonal size5.5 in
139.7 mm
13.97 cm
5.5 in
139.7 mm
13.97 cm
5.2 in
132.08 mm
13.21 cm
Width2.46 in
62.48 mm
6.25 cm
2.7 in
68.49 mm
6.85 cm
2.55 in
64.75 mm
6.48 cm
Height4.92 in
124.95 mm
12.5 cm
4.79 in
121.76 mm
12.18 cm
4.53 in
115.12 mm
11.51 cm
Aspect ratio2:1
2:1 (18:9)
1.778:1
16:9
1.778:1
16:9
Resolution720 x 1440 pixels720 x 1280 pixels720 x 1280 pixels
Pixel density293 ppi
115 ppcm
267 ppi
104 ppcm
282 ppi
110 ppcm
Color depth24 bit
16777216 colors
24 bit
16777216 colors
24 bit
16777216 colors
Display area75.79 %-71.41 %
Other featuresCapacitive
Multi-touch
Capacitive
Multi-touch
Capacitive
Multi-touch
2.5D curved glass screen
520 cd/m²
2.5D curved glass screen-

Sensors

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

SensorsProximity
Light
Accelerometer
Compass
Gyroscope
Fingerprint
Proximity
Light
Accelerometer
Proximity
Light
Accelerometer
Fingerprint

Primary camera

The primary camera of the mobile device is usually placed at its back and is used for taking photos and recording videos.

Sensor modelOmniVision OV12870--
Sensor typePureCelCMOSCMOS
ISO100 - 1600--
Aperturef/2--
Focal length3.5 mm--
Flash typeDual LEDLEDDual LED
Image resolution3968 x 2976 pixels
11.81 MP
4160 x 3120 pixels
12.98 MP
4160 x 3120 pixels
12.98 MP
Video resolution1920 x 1080 pixels
2.07 MP
1280 x 720 pixels
0.92 MP
1920 x 1080 pixels
2.07 MP
Video FPS30 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
Autofocus
Continuous shooting
Digital zoom
Geotagging
Panorama
HDR
Touch focus
Face detection
White balance settings
ISO settings
Exposure compensation
Self-timer
Scene mode
Autofocus
Continuous shooting
Digital zoom
Geotagging
Panorama
HDR
Touch focus
Face detection
White balance settings
ISO settings
Exposure compensation
Self-timer
Scene mode
Available also with Samsung Sony IMX386 Exmor RS (CMOS)
Pixel size - 1.25 μm
Phase detection
6-element lens
Secondary rear camera - 5 MP
--

Secondary camera

Secondary cameras are placed above the screen of the device and are usually used for video calls, gesture recognition, etc.

Sensor modelOmniVision OV8856--
Sensor typePureCel-CMOS
Sensor size3.68 x 2.77 mm
0.18 in
--
Pixel size1.127 µm
0.001127 mm
--
Crop factor9.4--
Aperturef/2--
Focal length3.5 mm
32.9 mm *(35 mm / full frame)
--
Flash type-LED-
Image resolution3264 x 2448 pixels
7.99 MP
3264 x 2448 pixels
7.99 MP
2560 x 1920 pixels
4.92 MP
Video resolution1280 x 720 pixels
0.92 MP
1280 x 720 pixels
0.92 MP
640 x 480 pixels
0.31 MP
Video FPS30 fps30 fps30 fps
Face unlock--

Audio

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

SpeakerLoudspeaker
Earpiece
LoudspeakerLoudspeaker
Earpiece

Radio

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

RadioYesYesYes

Tracking/Positioning

Information about the positioning and navigation technologies supported by the device.

Tracking/PositioningGPS
A-GPS
GLONASS
BeiDou
GPS
A-GPS
GPS
A-GPS

Wi-Fi

Wi-Fi is a technology that provides wireless data connections between various devices within a short range.

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

Bluetooth

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

Version4.04.14.0
FeaturesA2DPA2DPA2DP

USB

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

Connector typeMicro USBMicro USBMicro USB
Version2.02.02.0
FeaturesCharging
Mass storage
On-The-Go
Charging
Mass storage
Charging
Mass storage

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 jackYesYesYes

Connectivity

Information about other important connectivity technologies supported by the devices.

ConnectivityComputer sync
OTA sync
Tethering
VoLTE
Computer sync
OTA sync
Tethering
Computer sync
OTA sync
Tethering

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
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
AAC+
AMR
AMR-WB
eAAC+
FLAC
MIDI
MP3
OGG
WMA
WAV
AAC
AMR
AMR-WB
eAAC+
FLAC
MIDI
MP3
OGG
WMA
WAV
AAC
AMR
AMR-WB
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
DivX
H.263
H.264
MKV
MP4
WebM
Xvid
3GPP
AVI
MP4
Xvid
3GPP
AVI
Flash Video
H.263
H.264
MKV
MP4
WMV
Xvid

Battery

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

Capacity3300 mAh-2800 mAh
TypeLi-PolymerLi-IonLi-Polymer
Charger output power5 V / 1 A--
FeaturesNon-removableNon-removableNon-removable
 UMIDIGI A3BLU Advance A5 Plus LTEBLU R1 HD (2018)