Comparison between:
- Doogee Dagger DG550
- Lenovo K3 Note
- Uhappy UP620
- Mijue M690+

Brand and model

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

Doogee Dagger DG550Lenovo K3 NoteUhappy UP620Mijue M690+
Doogee Dagger DG550
Prices
Lenovo K3 NoteUhappy UP620Mijue M690+
Prices
Model aliasDG550K50-a40
K50-t5
--

Design

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

Width76 mm
7.6 cm
0.25 ft
2.99 in
76.2 mm
7.62 cm
0.25 ft
3 in
77 mm
7.7 cm
0.25 ft
3.03 in
70.2 mm
7.02 cm
0.23 ft
2.76 in
Height153 mm
15.3 cm
0.5 ft
6.02 in
152.6 mm
15.26 cm
0.5 ft
6.01 in
150 mm
15 cm
0.49 ft
5.91 in
146.7 mm
14.67 cm
0.48 ft
5.78 in
Thickness6.5 mm
0.65 cm
0.02 ft
0.26 in
7.99 mm
0.8 cm
0.03 ft
0.31 in
8.3 mm
0.83 cm
0.03 ft
0.33 in
8.4 mm
0.84 cm
0.03 ft
0.33 in
Weight192 g
0.42 lbs
6.77 oz
150 g
0.33 lbs
5.29 oz
164 g
0.36 lbs
5.78 oz
146 g
0.32 lbs
5.15 oz
Volume75.58 cm³
4.59 in³
92.91 cm³
5.64 in³
95.87 cm³
5.82 in³
86.51 cm³
5.25 in³
ColorsBlack
White
White
Yellow
Black
Black
White
Black
White
Body materialsPlasticPlasticPlastic-

SIM card

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

SIM card typeMini-SIM
Micro-SIM
Micro-SIMMicro-SIM
Mini-SIM
Mini-SIM
Micro-SIM
Number of SIM cards2222
FeaturesDual SIM stand-by (Both cards are active. When one is busy, the other is not active)Dual SIM stand-by (Both cards are active. When one is busy, the other is not active)Dual SIM stand-by (Both cards are active. When one is busy, the other is not active)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 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 2100 MHz
-W-CDMA 850 MHz
W-CDMA 2100 MHz
W-CDMA 850 MHz
W-CDMA 1900 MHz
W-CDMA 2100 MHz
TD-SCDMA-TD-SCDMA 1880-1920 MHz
TD-SCDMA 2010-2025 MHz
--
UMTS-UMTS 850 MHz
UMTS 900 MHz
UMTS 1900 MHz
UMTS 2100 MHz
--
LTE-LTE 1800 MHz
LTE 2100 MHz
LTE 2600 MHz
LTE-TDD 1900 MHz (B39)
LTE-TDD 2300 MHz (B40)
LTE-TDD 2600 MHz (B38)
--

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+
UMTS
EDGE
GPRS
HSPA+
LTE Cat 4
TD-SCDMA
TD-HSDPA
UMTS
EDGE
GPRS
HSPA+
UMTS
EDGE
GPRS
HSPA+

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 4.2.9 Jelly Bean
Android 4.4.2 KitKat
Android 5.0 Lollipop
Android 6.0 Marshmallow
Android 4.4.2 KitKatAndroid 4.4.2 KitKat
User interface (UI)MY UI 3.0Vibe 2.5--

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 MT6592MediaTek MT6752MediaTek MT6592MediaTek MT6592
Process technology28 nm28 nm28 nm28 nm
CPUARM Cortex-A7ARM Cortex-A53ARM Cortex-A7ARM Cortex-A7
CPU bits32 bit64 bit32 bit32 bit
Instruction setARMv7ARMv8-AARMv7ARMv7
Level 1 cache memory (L1)32 KB + 32 KB32 KB + 32 KB32 KB + 32 KB32 KB + 32 KB
Level 2 cache memory (L2)1024 KB
1 MB
512 KB
0.5 MB
1024 KB
1 MB
1024 KB
1 MB
CPU cores8888
CPU frequency1700 MHz1700 MHz1700 MHz1700 MHz
GPUARM Mali-450 MP4ARM Mali-T760 MP2ARM Mali-450 MP4ARM Mali-450 MP4
GPU cores4244
GPU frequency700 MHz700 MHz700 MHz700 MHz
RAM capacity1 GB2 GB1 GB1 GB
2 GB
RAM type-LPDDR3--
RAM channels-Single channel--
RAM frequency-800 MHz--

Storage

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

Storage16 GB16 GB8 GB8 GB
16 GB

Memory cards

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

TypesmicroSD
microSDHC
microSDXC
microSD
microSDHC
microSDXC
microSD
microSDHC
microSDXC
microSD
microSDHC

Display

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

Type/technologyIPSIPSIPSIPS
Diagonal size5.5 in
139.7 mm
13.97 cm
5.5 in
139.7 mm
13.97 cm
5.5 in
139.7 mm
13.97 cm
5 in
127 mm
12.7 cm
Width2.7 in
68.49 mm
6.85 cm
2.7 in
68.49 mm
6.85 cm
2.7 in
68.49 mm
6.85 cm
2.45 in
62.26 mm
6.23 cm
Height4.79 in
121.76 mm
12.18 cm
4.79 in
121.76 mm
12.18 cm
4.79 in
121.76 mm
12.18 cm
4.36 in
110.69 mm
11.07 cm
Aspect ratio1.778:1
16:9
1.778:1
16:9
1.778:1
16:9
1.778:1
16:9
Resolution720 x 1280 pixels1080 x 1920 pixels540 x 960 pixels720 x 1280 pixels
Pixel density267 ppi
104 ppcm
401 ppi
157 ppcm
200 ppi
78 ppcm
294 ppi
115 ppcm
Color depth24 bit
16777216 colors
24 bit
16777216 colors
24 bit
16777216 colors
24 bit
16777216 colors
Display area71.95 %71.95 %72.43 %67.14 %
Other featuresCapacitive
Multi-touch
Capacitive
Multi-touch
Scratch resistant
Capacitive
Multi-touch
Capacitive
Multi-touch
OGS (One Glass Solution)
Full Lamination Technology
Oleophobic (lipophobic) coating
Dragontrail glass
OGS (One Glass Solution)
GFF full laminationOGS (One Glass Solution)

Sensors

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

SensorsProximity
Light
Accelerometer
Compass
Gravity
Proximity
Light
Accelerometer
Compass
Gyroscope
Proximity
Light
Accelerometer
Compass
Proximity
Light
Accelerometer

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 OV8825OmniVision OV13850--
Sensor typeCMOS BSIPureCelCMOS-
Sensor size4.61 x 3.44 mm
0.23 in
4.82 x 3.68 mm
0.24 in
--
Pixel size1.414 µm
0.001414 mm
1.157 µm
0.001157 mm
--
Crop factor7.517.14--
ISO100 - 1600---
Aperturef/2.2f/2f/2.2-
Flash typeLEDDual LEDLEDLED
Image resolution3264 x 2448 pixels
7.99 MP
4160 x 3120 pixels
12.98 MP
3264 x 2448 pixels
7.99 MP
3264 x 2448 pixels
7.99 MP
Video resolution1920 x 1080 pixels
2.07 MP
1920 x 1080 pixels
2.07 MP
1920 x 1088 pixels
2.09 MP
1920 x 1080 pixels
2.07 MP
Video FPS-30 fps30 fps30 fps
FeaturesAutofocus
Continuous shooting
Digital zoom
Digital image stabilization
Geotagging
Panorama
HDR
Touch focus
Face detection
White balance settings
ISO settings
Exposure compensation
Scene mode
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
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
Autofocus
Digital zoom
Geotagging
Panorama
HDR
Touch focus
Face detection
White balance settings
ISO settings
Exposure compensation
Scene mode
Interpolated resolution - 13 MP
5-element lens
5-element lens--

Secondary camera

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

Aperture-f/2.4--
Image resolution2560 x 1920 pixels
4.92 MP
2560 x 1920 pixels
4.92 MP
2560 x 1920 pixels
4.92 MP
-
Video resolution1920 x 1080 pixels
2.07 MP
1280 x 720 pixels
0.92 MP
--
Video FPS-30 fps--
---2 MP

Audio

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

SpeakerLoudspeaker
Earpiece
LoudspeakerLoudspeaker
Earpiece
Loudspeaker
Earpiece

Radio

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

RadioYesYesYesYes

Tracking/Positioning

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

Tracking/PositioningGPS
A-GPS
EPO
GPS
A-GPS
GLONASS
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-Fi802.11b
802.11g
802.11n
Wi-Fi Hotspot
Wi-Fi Direct
Wi-Fi Display
802.11a
802.11b
802.11g
802.11n
Wi-Fi Hotspot
Wi-Fi Direct
802.11b
802.11g
802.11n
Wi-Fi Hotspot
802.11b
802.11g
802.11n
Wi-Fi Hotspot
Wi-Fi Display

Bluetooth

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

Version4.04.14.04.0
FeaturesA2DP
HID
A2DP
LE
A2DPA2DP

USB

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

Connector typeMicro USBMicro USBMicro USBMicro USB
Version2.02.02.02.0
FeaturesCharging
Mass storage
On-The-Go
Charging
Mass storage
On-The-Go
Charging
Mass storage
Charging
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 jackYesYesYesYes

Connectivity

Information about other important connectivity technologies supported by the devices.

ConnectivityComputer sync
OTA sync
Tethering
Computer sync
OTA sync
Tethering
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
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/codecsAMR
AMR-WB
MIDI
MP3
WAV
AAC
AMR
eAAC+
FLAC
MIDI
MP3
WMA
WAV
AAC
AMR
eAAC+
MIDI
MP3
WMA
WAV
AAC
eAAC+
MIDI
MP3
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
MPEG-4
RMVB
3GPP
AVI
H.263
H.264
MP4
WMV
3GPP
AVI
MP4
WMV
3GPP
AVI
MKV
MP4

Battery

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

Capacity2600 mAh3000 mAh2200 mAh1950 mAh
TypeLi-PolymerLi-PolymerLi-PolymerLi-Polymer
2G talk time--5 h
300 min
0.2 days
2 h 30 min
2.5 h
150 min
0.1 days
2G stand-by time--180 h
10800 min
7.5 days
180 h
10800 min
7.5 days
3G talk time-36 h
2160 min
1.5 days
4 h
240 min
0.2 days
2 h
120 min
0.1 days
3G stand-by time-750 h
45000 min
31.3 days
200 h
12000 min
8.3 days
120 h
7200 min
5 days
Charger output power-5 V / 2 A--
FeaturesRemovableRemovableRemovableRemovable

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 (USA)-1.59 W/kg--
Body SAR (USA)-0.688 W/kg--
 Doogee Dagger DG550Lenovo K3 NoteUhappy UP620Mijue M690+