Comparison between:
- Samsung Galaxy Note FE SD820
- Ulefone Power 3S
- Vernee X
- Cubot Power

Brand and model

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

Samsung Galaxy Note FE SD820Ulefone Power 3SVernee XCubot Power
Samsung Galaxy Note FE SD820Ulefone Power 3S
Prices
Vernee X
Prices
Cubot Power
Prices
Model aliasGalaxy Note 7R
SM-N935K
SM-N935L
SM-N935S
Power3S--

Design

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

Width73.9 mm
7.39 cm
0.24 ft
2.91 in
75.9 mm
7.59 cm
0.25 ft
2.99 in
76 mm
7.6 cm
0.25 ft
2.99 in
74.39 mm
7.44 cm
0.24 ft
2.93 in
Height153.5 mm
15.35 cm
0.5 ft
6.04 in
159.2 mm
15.92 cm
0.52 ft
6.27 in
159.5 mm
15.95 cm
0.52 ft
6.28 in
158.39 mm
15.84 cm
0.52 ft
6.24 in
Thickness7.9 mm
0.79 cm
0.03 ft
0.31 in
9.85 mm
0.99 cm
0.03 ft
0.39 in
9.8 mm
0.98 cm
0.03 ft
0.39 in
10.75 mm
1.08 cm
0.04 ft
0.42 in
Weight169 g
0.37 lbs
5.96 oz
210 g
0.46 lbs
7.41 oz
198 g
0.44 lbs
6.98 oz
215 g
0.47 lbs
7.58 oz
Volume89.61 cm³
5.44 in³
119.02 cm³
7.23 in³
118.8 cm³
7.21 in³
126.66 cm³
7.69 in³
ColorsBlack
Blue
Silver
Black
Gold
Black
Blue
Black
Blue
Body materialsMetal
Glass
Aluminium alloyMetalAluminium alloy
Polycarbonate
CertificationIP68---

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 / microSD
Nano-SIM
Nano-SIM
Nano-SIM / microSD
Nano-SIM
Nano-SIM / microSD
Number of SIM cards2222

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
GSM 850 MHz
GSM 900 MHz
GSM 1800 MHz
GSM 1900 MHz
CDMACDMA 800 MHz
CDMA 1900 MHz
---
W-CDMA-W-CDMA 900 MHz
W-CDMA 2100 MHz
W-CDMA 900 MHz
W-CDMA 2100 MHz
W-CDMA 900 MHz
W-CDMA 2100 MHz
TD-SCDMATD-SCDMA 1880-1920 MHz
TD-SCDMA 2010-2025 MHz
---
UMTSUMTS 850 MHz
UMTS 900 MHz
UMTS 1900 MHz
UMTS 2100 MHz
---
LTELTE 700 MHz Class 13
LTE 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 1900 MHz (B39)
LTE-TDD 2300 MHz (B40)
LTE-TDD 2500 MHz (B41)
LTE-TDD 2600 MHz (B38)
LTE 700 MHz (B12)
LTE 700 MHz (B29)
LTE 800 MHz (B18)
LTE 800 MHz (B19)
LTE 800 MHz (B26)
LTE 2300 MHz (B30)
LTE 800 MHz
LTE 900 MHz
LTE 1800 MHz
LTE 2100 MHz
LTE 2600 MHz
LTE 800 MHz
LTE 900 MHz
LTE 1800 MHz
LTE 2100 MHz
LTE 2600 MHz
LTE 800 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 9
EV-DO Rev. A
TD-SCDMA
TD-HSDPA
UMTS
EDGE
GPRS
HSPA+
LTE Cat 7
UMTS
EDGE
GPRS
HSPA+
LTE Cat 7
UMTS
EDGE
GPRS
HSPA+
LTE Cat 6

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 6.0.1 marshmallow
Android 7.1 Nougat
Android 8.0 Oreo
Android 7.1 Nougat
Android 8.1 Oreo
VOS (Android 7.1.1 Nougat)Android 8.1 Oreo

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 820 MSM8996MediaTek Helio P23 (MT6763V)MediaTek Helio P23 (MT6763V)MediaTek Helio P23 (MT6763T)
Process technology14 nm16 nm16 nm16 nm
CPU2x 2.15 GHz Kryo, 2x 1.6 GHz Kryo4x 2.0 GHz ARM Cortex-A53, 4x 1.5 GHz ARM Cortex-A534x 2.0 GHz ARM Cortex-A53, 4x 1.5 GHz ARM Cortex-A534x 2.3 GHz ARM Cortex-A53, 4x 1.65 GHz ARM Cortex-A53
CPU bits64 bit64 bit64 bit64 bit
Instruction setARMv8-AARMv8-AARMv8-AARMv8-A
Level 1 cache memory (L1)32 KB + 32 KB---
Level 2 cache memory (L2)1536 KB
1.5 MB
---
CPU cores4888
CPU frequency2150 MHz2000 MHz2000 MHz2300 MHz
GPUQualcomm Adreno 530ARM Mali-G71 MP2ARM Mali-G71 MP2ARM Mali-G71 MP2
GPU cores-222
GPU frequency624 MHz700 MHz700 MHz770 MHz
RAM capacity4 GB4 GB4 GB
6 GB
6 GB
RAM typeLPDDR4LPDDR4XLPDDR4XLPDDR4X
RAM channelsDouble channelDouble channelDouble channelDouble channel
RAM frequency1866 MHz1600 MHz1600 MHz1600 MHz

Storage

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

Storage64 GB64 GB64 GB
128 GB
128 GB
UFS 2.0-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
microSD
microSDHC
microSDXC

Display

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

Type/technologySuper AMOLEDIPSIPSIPS
Diagonal size5.7 in
144.78 mm
14.48 cm
6 in
152.4 mm
15.24 cm
6 in
152.4 mm
15.24 cm
5.99 in
152.15 mm
15.21 cm
Width2.79 in
70.98 mm
7.1 cm
2.68 in
68.16 mm
6.82 cm
2.68 in
68.16 mm
6.82 cm
2.68 in
68.04 mm
6.8 cm
Height4.97 in
126.19 mm
12.62 cm
5.37 in
136.31 mm
13.63 cm
5.37 in
136.31 mm
13.63 cm
5.36 in
136.08 mm
13.61 cm
Aspect ratio1.778:1
16:9
2:1
2:1 (18:9)
2:1
2:1 (18:9)
2:1
2:1 (18:9)
Resolution1440 x 2560 pixels1080 x 2160 pixels1080 x 2160 pixels1080 x 2160 pixels
Pixel density515 ppi
202 ppcm
402 ppi
158 ppcm
402 ppi
158 ppcm
403 ppi
158 ppcm
Color depth24 bit
16777216 colors
24 bit
16777216 colors
24 bit
16777216 colors
24 bit
16777216 colors
Display area79.21 %77.13 %76.89 %78.84 %
Other featuresCapacitive
Multi-touch
Scratch resistant
Capacitive
Multi-touch
Scratch resistant
Capacitive
Multi-touch
Capacitive
Multi-touch
Corning Gorilla Glass 5
Dual Edge display
Always-On Display
VR headset support
Corning Gorilla Glass 4
2.5D curved glass screen
Display manufacturer - AU Optronics
2.5D curved glass screen
2200:1 contrast ratio
490 cd/m²
Viewing angle - 178°
2.5D curved glass screen
1300:1 contrast ratio
450 cd/m²
90% NTSC

Sensors

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

SensorsProximity
Light
Accelerometer
Compass
Gyroscope
Barometer
Fingerprint
Hall
Heart rate
Iris sensor
Proximity
Light
Accelerometer
Compass
Gyroscope
Fingerprint
Proximity
Light
Accelerometer
Compass
Gyroscope
Fingerprint
Hall
Proximity
Light
Accelerometer
Gyroscope
Magnetometer
Fingerprint
Fingerprint sensor model - Synaptics---

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 modelSony IMX260 Exmor RS-Sony IMX258 Exmor RSSamsung S5K3P3
Sensor typeCMOSCMOSCMOSISOCELL
Sensor size--4.71 x 3.49 mm
0.23 in
4.74 x 3.56 mm
0.23 in
Pixel size--1.133 µm
0.001133 mm
1.029 µm
0.001029 mm
Crop factor--7.377.29
ISO---100 - 1600
Aperturef/1.7f/2f/2f/2.8
Focal length4.2 mm-3.5 mm
25.81 mm *(35 mm / full frame)
3.5 mm
25.53 mm *(35 mm / full frame)
Flash typeDual LEDDual LEDDual LEDLED
Image resolution4032 x 3024 pixels
12.19 MP
4160 x 3120 pixels
12.98 MP
4160 x 3120 pixels
12.98 MP
4608 x 3456 pixels
15.93 MP
Video resolution3840 x 2160 pixels
8.29 MP
1920 x 1088 pixels
2.09 MP
1920 x 1080 pixels
2.07 MP
1920 x 1080 pixels
2.07 MP
Video FPS30 fps30 fps30 fps30 fps
FeaturesAutofocus
Continuous shooting
Digital zoom
Optical 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
Geotagging
Panorama
HDR
Touch focus
Face detection
White balance settings
ISO settings
Exposure compensation
Self-timer
Scene mode
Autofocus
Continuous shooting
Digital zoom
Optical 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
Geotagging
Panorama
HDR
Touch focus
Face detection
White balance settings
ISO settings
Exposure compensation
Self-timer
Scene mode
Available also with Samsung S5K2L1 (ISOCELL)
Phase detection with Dual Pixel
Object tracking AF
Smart OIS
1080p @ 60 fps
720p @ 120 fps
Phase detection
5-element lens
Interpolated resolution - 16 MP
Secondary rear camera - 5 MP
Phase detection
Interpolated resolution - 16 MP
Secondary rear camera - 5 MP
6-element lens
Flash - 1.0A
Interpolated resolution - 20 MP

Secondary camera

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

Sensor modelSamsung S5K4E6OmniVision OV8856OmniVision OV8856GalaxyCore GC8024
Sensor typeISOCELLPureCelPureCelCMOS BSI
Sensor size3.6 x 2.7 mm
0.18 in
3.68 x 2.77 mm
0.18 in
3.68 x 2.77 mm
0.18 in
3.67 x 2.76 mm
0.18 in
Pixel size1.389 µm
0.001389 mm
1.127 µm
0.001127 mm
1.127 µm
0.001127 mm
1.124 µm
0.001124 mm
Crop factor9.619.49.49.42
Aperturef/1.7f/2.2f/2.8f/2.8
Focal length2.1 mm
20.19 mm *(35 mm / full frame)
-3.5 mm
32.9 mm *(35 mm / full frame)
3.5 mm
32.98 mm *(35 mm / full frame)
Flash type-LEDLED-
Image resolution2592 x 1944 pixels
5.04 MP
3264 x 2448 pixels
7.99 MP
3264 x 2448 pixels
7.99 MP
3264 x 2448 pixels
7.99 MP
Video resolution1920 x 1080 pixels
2.07 MP
1280 x 720 pixels
0.92 MP
640 x 480 pixels
0.31 MP
1920 x 1080 pixels
2.07 MP
Video FPS30 fps30 fps30 fps30 fps
Auto HDRFace unlock
Interpolated resolution - 13 MP
Secondary front camera - 5 MP
Face unlock
Interpolated resolution - 13 MP
Secondary front camera - 5 MP
4-element lens
Interpolated resolution - 13 MP

Audio

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

SpeakerLoudspeaker
Earpiece
Loudspeaker
Earpiece
Loudspeaker
Earpiece
Loudspeaker
Earpiece
192 kHz / 24-bit
HAC (M4/T4) - Hearing Aid Compatibility
Awinic AW8736 (6-th generation Class K audio amplifier)
Headphone adapter
Headphone adapter-

Radio

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

RadioNoYesYesYes
-RDSRDS-

Tracking/Positioning

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

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

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
802.11ac
Dual band
Wi-Fi Hotspot
Wi-Fi Direct
802.11a
802.11b
802.11g
802.11n
802.11n 5GHz
Dual band
Wi-Fi Hotspot
802.11a
802.11b
802.11g
802.11n
802.11n 5GHz
Dual band
Wi-Fi Hotspot
Wi-Fi Direct
Wi-Fi Display
802.11a
802.11b
802.11g
802.11n
802.11n 5GHz
Dual band
Wi-Fi Hotspot
Wi-Fi Direct
Wi-Fi Display
VHT80 MiMO---

Bluetooth

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

Version4.24.14.04.2
FeaturesA2DP
AVRCP
DIP
HFP
HID
HSP
LE
MAP
OPP
PAN
PBAP
A2DPA2DP
LE
A2DP

USB

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

Connector typeUSB Type-CUSB Type-CUSB Type-CUSB Type-C
Version3.12.02.02.0
FeaturesCharging
Mass storage
On-The-Go
Charging
Mass storage
On-The-Go
Charging
Mass storage
On-The-Go
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 jackYesNoNoYes

Connectivity

Information about other important connectivity technologies supported by the devices.

ConnectivityComputer sync
OTA sync
Tethering
NFC
ANT+
Computer sync
OTA sync
Tethering
Computer sync
OTA sync
Tethering
VoLTE
ViLTE
Computer sync
OTA sync
Tethering
VoLTE
ViLTE

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/codecsAAC
AAC+
AMR
AMR-WB
aptX
eAAC+
FLAC
M4A
MIDI
MP3
OGG
WMA
WAV
XMF
AAC
AAC+
AMR
eAAC+
FLAC
MIDI
MP3
OGG
WMA
WAV
AAC
AAC+
AMR
eAAC+
FLAC
MIDI
MP3
OGG
WMA
WAV
AAC
AMR
eAAC+
FLAC
M4A
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
3GPP2
AVI
DivX
Flash Video
H.263
H.264
MKV
MP4
WebM
WMV
Xvid
ASF
3GPP
AVI
H.263
H.264
H.265
MKV
MP4
WebM
WMV
Xvid
3GPP
AVI
Flash Video
H.263
H.264
MKV
QuickTime
MP4
WMV
Xvid
3GPP
AVI
Flash Video
H.263
H.264
MKV
QuickTime
MP4
WebM
WMV
WMV9
Xvid

Battery

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

Capacity3200 mAh6350 mAh6200 mAh6000 mAh
TypeLi-PolymerLi-PolymerLi-PolymerLi-Ion
2G talk time31 h
1860 min
1.3 days
64 h
3840 min
2.7 days
65 h
3900 min
2.7 days
46 h
2760 min
1.9 days
2G stand-by time744 h
44640 min
31 days
1800 h
108000 min
75 days
1824 h
109440 min
76 days
600 h
36000 min
25 days
3G talk time31 h
1860 min
1.3 days
64 h
3840 min
2.7 days
65 h
3900 min
2.7 days
46 h
2760 min
1.9 days
3G stand-by time744 h
44640 min
31 days
1800 h
108000 min
75 days
1824 h
109440 min
76 days
600 h
36000 min
25 days
Charger output power9 V / 1.67 A5 V / 3 A5 V / 2 A
7 V / 2 A
9 V / 2 A
12 V / 1.5 A
5 V / 2 A
Quick charge technology-MediaTek Pump Express Plus 2.0--
FeaturesWireless charging
Fast charging
Non-removable
Fast charging
Non-removable
Fast charging
Non-removable
Fast charging
Non-removable
Qi/PMA wireless charging---

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)---0.414 W/kg
Body SAR (EU)---0.74 W/kg
Head SAR (USA)0.57 W/kg---
Body SAR (USA)0.79 W/kg---

Additional features

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

Additional featuresS Pen stylus (4096 pressure levels)---
 Samsung Galaxy Note FE SD820Ulefone Power 3SVernee XCubot Power