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Sunday, November 25, 2018

Vivo Y91 Vs Lenovo K9 Vs Samsung Galaxy J4 Plus Comparisons


The Vivo Y91 comes with 2/3 GB of RAM and 16/32 GB of internal memory which can be expanded via microSD. The Vivo Y91 boasts of the 13/2-megapixels dual rear camera and 8-megapixels front camera for selfies and video calling.

The Samsung Galaxy J4 Plus comes with 2/3 GB of RAM and 16/32 GB of internal memory which can be expanded via MicroSD. The Samsung Galaxy J4 Plus boasts of the 13-megapixels rear camera and 5-megapixel front camera for selfies and video calling.

The Lenovo K9 comes with 3 GB of RAM and 32 GB of internal memory which can be expanded via microSD. The Lenovo K9 boasts of the 13/5-megapixels dual rear camera and also 13/5-megapixel front dual camera for selfies and video calling.




Vivo Y91
Lenovo K9
Samsung Galaxy J4 Plus

Brand and Model   
Brand and Model
Brand and Model
Brand  
Vivo
  Lenovo
  Samsung
Model  
Y91
  K9
 Galaxy J4+
Model Alias 


 Galaxy J4 Plus


 Galaxy J4Plus

   SIM Card    
SIM Card
SIM Card
SIM Card Type  
Nano-SIM (4FF-fourth form factor, since 2012, 12.30 x 8.80 x 0.67 mm)  
Nano-SIM (4FF-fourth form factor, since 2012, 12.30 x 8.80 x 0.67 mm) 
Nano-SIM (4FF- fourth form factor, since 2012, 12.30 x 8.80 x 0.67 mm)  
Number of SIM Cards  
  2
  2
  2
Features
Dual SIM stand-by
 Dual SIM stand-by
Dual SIM stand-by

   Networks    
Networks
Networks
Network  
GSM / LTE / W-CDMA
GSM / LTE / UMTS
GSM / LTE / UMTS

   Mobile Network Technology and Bandwidth   
Mobile Network Technology and Bandwidth
Mobile Network Technology and Bandwidth
Mobile Network Technologies  
 UMTS (384 kbit/s) 
 UMTS (384 kbit/s) 
 UMTS (384 kbit/s) 
 EDGE 
 EDGE 
 EDGE 
 GPRS  
 GPRS  
 GPRS  
 HSPA+ 
 HSPA+ 
 HSPA+ 
LTE Cat 4 (51.0 Mbit/s, 150.8 Mbit/s)
LTE Cat 6 (51.0 Mbit/s, 301.5 Mbit/s)
 LTE Cat 4 (51.0 Mbit/s,150.8 Gbit/s)

Operating System
Operating System
Operating System
Operating System (OS)  
Funtouch 4.5 OS (Android 8.1 Oreo)
Android 8.1 Oreo
 Android 8.1 Oreo

   System on Chip (SOC)    
System on Chip (SOC)
System on Chip (SOC)
SOC  
Qualcomm Snapdragon 439
MediaTek Helio P22 (MT6762)
Qualcomm Snapdragon 425 MSM8917
Process Technology  
 12 nm 
 12 nm 
 28 nm 
CPU  
4x 1.95 GHz ARM Cortex-A53
4x 2.0 GHz ARM Cortex-A53
ARM Cortex-A53
4x 1.45 GHz ARM Cortex-A53
4x 1.5 GHz ARM Cortex-A53

CPU Bits  
 64 bits 
 64 bits 
 64 bits 
Instruction Set  
 ARMv8
 ARMv8-A
 ARMv8
CPU Frequency  
 1950 MHz  
 2000 MHz  
 1400 MHz  
CPU Cores  
 8
  8
  4
GPU  
Qualcomm Adreno 505
PowerVR GE8320
Qualcomm Adreno 308
RAM Capacity  
2 GB
  2 GB  
3 GB
  3 GB
 3 GB
RAM Type  
LPDDR3
 LPDDR3
 LPDDR3
RAM Channels  
Single channel
Single channel
 Single channel
RAM Frequency  

 933 MHz
 667 MHz

   Storage    
Storage
Storage
Storage  
 16 GB 
  16 GB 
32 GB
  32 GB 
  32 GB

Memory Cards   
Memory Cards
Memory Cards
Types  
microSD
 microSD
  microSD
microSDHC
 microSDHC
 microSDHC
microSDXC
 microSDXC
 microSDXC

   Display    
Display
Display
Type / Technology  
IPS
 IPS
  TFT
Diagonal Size  
 6.22 in 
  5.7 in 
  6 in 
 157.99 mm 
  144.78 mm 
  152.4 mm 
 15.8 cm 
  14.48 cm 
  15.24 cm 
Width  
  2.66 in 
  2.55 in 
  2.62 in 
  67.63 mm 
  64.75 mm 
  66.67 mm 
  6.76 cm 
  6.47 cm 
  6.67 cm 
Height  
  5.62 in 
  5.1 in 
  5.4 in 
 142.78 mm 
  129.5 mm 
  137.04 mm 
  14.28 cm 
  12.95 cm 
  13.7 cm 
Aspect Ratio  
 2.111:1
 2:1
 2.056:1 

 2:1 (18:9)

Resolution  
 720 x 1520 pixels 
 720 x 1440 pixels 
 72 x 1480 pixels 
Pixel Density  
  270 ppi 
  282 ppi 
  274 ppi 
  106 ppcm 
  110 ppcm 
  107 ppcm 
Color Depth  
  24 bits  
  24 bits  
  24 bits  
  16777216 colors 
  16777216 colors 
  16777216 colors 
Display Area  
  83.18 % 
  75.02 % 
  74.09 % 
Other Features  
 Capacitive 
 Capacitive 
 Capacitive 
 Multi-touch 
 Multi-touch 
 Multi-touch 
Scratch resistant

2.5D curved glass screen
 2.5D Curved glass screen


   Sensors    
Sensors
Sensors
Sensors  
Proximity
 Proximity
 Proximity
Light
 Light
 Light
Accelerometer
 Accelerometer
 Accelerometer
Compass
  
Gyroscope


Fingerprint
 Fingerprint


   Primary Camera    
Primary Camera
Primary Camera
Sensor type  
CMOS

 CMOS BSI
Aperture 
f/2.2
 f/2.2
 f/1.9
Flash Type 
LED
Dual LED
 LED
 Image Resolution  
 4160 x 3120 pixels 
 4160 x 3120 pixels 
 4160 x 3120 pixels 
 12.98 MP 
 12.98 MP 
 12.98 MP 
Video resolution 
1920 x 1080 pixels
 1920 x 1080 pixels
 1920 x 1080 pixels
2.07 MP
 2.07 MP
 2.07 MP
Video FPS 
30 fps
 30 fps
 30 fps
Features  
Autofocus 
Autofocus 
Autofocus 
Continuous shooting 
Continuous shooting  
Continuous shooting 
Digital zoom
Digital zoom
Digital zoom 
Geotagging 
Geotagging 
Geotagging 
Panorama 
Panorama 
Panorama 
HDR 
HDR 
HDR 
Touch focus 
Touch focus 
Touch focus 
Face detection
Face detection
Face detection
White balance setting 
White balance setting 
White balance setting 
ISO setting 
ISO setting 
ISO setting 
Exposure compensation 
Exposure compensation 
Exposure compensation 
Self-timer 
Self-timer 
Self-timer 
Scene mode 
Scene mode 
Scene mode 

Pixel size- 1.12 um


Phase detection

Secondary rear camera - 2 MP
Secondary rear camera- 5 MP

Aperture size - f/2.4 (#2)
Aperture size- f/2.4 (#2)


   Secondary Camera    
Secondary Camera
Secondary Camera  
Aperture 
f/2
 f/2.2
 f/2.2 
Image Resolution  
3260 x 2448 pixels
 4160 x 3120 pixels 
 2560 x 1920 pixels 
7.99 MP
  12.98 MP 
  4.92 MP 
Video Resolution 
1280 x 720 pixels
 1280 x 720 pixels
 1280 x 720 pixels
0.92  MP
 0.92 MP
 0.92 MP
Video FPS 
30 fps
 30 fps
 30 fps

Face unlock
Pixel size- 1.12 um


Secondary front camera- 5 MP


Aperture size- f/2.4 (#2)


   Audio
Audio
Audio
Speaker  
Loudspeaker 
Loudspeaker 
Loudspeaker 
Earpiece
Earpiece
Earpiece

   Radio    
Radio
Radio
Radio  
Yes
  Yes
  Yes

Tracking /  Positioning
Tracking /  Positioning
Tracking /  Positioning
Tracking /  Positioning  
GPS
 A-GPS 
 GPS 
A-GPS
GPS
 A-GPS 
GLONASS
GLONASS
GLONASS
BeiDou

BeiDoui

Wi-Fi    
Wi-Fi
Wi-Fi
Wi-Fi 

 802.11b (IEEE 802.11b-1999)
802.11b (IEEE 802.11b-1999)
 802.11b (IEEE 802.11b-1999)
 802.11g (IEEE 802.11g-1999)
802.11g (IEEE 802.11g-1999)
 802.11g (IEEE 802.11g-1999)
 802.11n (IEEE 802.11n-2003) 
802.11n (IEEE 802.11n-2003) 
 802.11n (IEEE 802.11n-2003) 

 Wi-Fi Hotspot 
 Wi-Fi Hotspot 
 Wi-Fi Hotspot 
Wi-Fi Direct
 Wi-Fi-Direct
 Wi-Fi-Direct

   Bluetooth  
Bluetooth
Bluetooth
Version  
 4.2
 4.1
 4.1
Features  
A2DP 
A2DP 
A2DP 


AVRCP

LE
DIP


HFP


HID


MAP


OPP


PAN


PBAP/PAB


HOGP

USB
USB
USB
Connector Type  
Micro USB
 USB Type-C
 Micro USB
Version  
 2.0
  2.0
  2.0
Features  
Charging 
Charging 
Charging 
Mass Storage 
Mass Storage 
Mass Storage 
On-The-Go
On-The-Go


Headphone Jack
Headphone Jack
Headphone Jack
Headphone Jack  
Yes
 Yes
 Yes

   Connectivity    
Connectivity
Connectivity
Connectivity  
 Computer sync 
 Computer sync 
 Computer sync 
 OTA sync 
 OTA sync 
 OTA sync 
Tethering
 Tethering
 Tethering
VoLTE
 VoLTE
 ANT+


 NFC

   Browser    
Browser
Browser
Browser  
HTML 
HTML 
HTML 
HTML5 
HTML5 
HTML5 
CSS 3 
CSS 3 
CSS 3 

   Audio File Formats / Codecs    
Audio File Formats / Codecs
Audio File Formats / Codecs
Audio File Formats  / Codecs   
AAC 
AAC 
AAC 
AAC+ / aacPlus / HE-AAC v1
AAC+ / aacPlus / HE-AAC v1
AMR / AMR-NB / GSM-AMR 
AMR / AMR-NB / GSM-AMR 
AMR / AMR-NB / GSM-AMR 
aptX / apt-X
AMR-WB



eAAC+ / aacPlus v2 / HE-AAC v2
eAAC+ / aacPlus v2 / HE-AAC v2
eAAC+ / aacPlus v2 / HE-AAC v2

M4A
FLAC 
FLAC 
FLAC 
MIDI 
MIDI 
MIDI 
MP3 
MP3 
MP3 
OGG 
OGG 
OGG 
WMA 
WMA 
WMA 
WAV 
WAV 
WAV 

   Video File Formats / Codecs    
Video File Formats / Codecs
Video File Formats / Codecs
Video File Formats /  Codecs  
3GPP 
3GPP 
3GPP 
AVI 
AVI 
AVI 


3GPP2
Flash Video
H.263
H.263

H.264 / MPEG-4 Part 10 / AVC video
H.264 / MPEG-4 Part 10 / AVC video


QuickTime

MKV
MKV
MP4
MP4
MP4
WebM
WebM
WebM

WMV
WMV
Xvid
Xvid


   Battery    
Battery
Battery
Capacity  
4030 MAh
 3000 mAh
3300 mAh
Type  
Li-Ion
 Li-Polymer
 Li-Ion
Features  
Non-removable 
 Non-removable 
 Non-removable 

Fast charging


Launch   
Launch
Launch
Announced  
 2018, November
 2018, October
 2018, September 
Status  
Release Nov. 2018
Release 13 Dec.  2018
Release Sep. 2018

Price   
Price
Price
Price  
 About 190 $
 About 130 $
 About 175 $ 

   Design    
Design
Design
Colors  
Black
 Black
 Black
Blue
 Blue
 Rose-Gold


 Gold
Width  
 75.09 mm 
  72.9 mm 
  76.7 mm 
  7.51 cm 
  7.29 cm 
  7.67 cm 
 0.25 ft 
  0.24 ft 
  0.25 ft 
  2.96 in 
  2.87 in 
  3.02 in 
Height  
154.11 mm 
 153.8 mm 
 161.3 mm 
15.51 cm 
 15.38 cm 
 16.13 cm 
 0.51 ft 
  0.5 ft 
  0.53 ft 
  6.11 in 
  6.06 in 
  6.35 in 
Thickness  
 8.28 mm 
  7.95 mm 
  7.9 mm 
  0.83 cm 
  0.8 cm 
  0.79 cm 
 0.03 ft 
  0.03 ft 
  0.03 ft 
  0.33 in 
  0.31 in 
  0.31 in 
Weight  
163 g
  155 g
  178 g
0.36 lbs
   0.34 lbs
  0.39 lbs
5.77 oz
  5.47 oz
  6.28 oz
Volume  
 96.44 cm3
  89.14 cm3
  97.74 cm3
  5.86 in3
  5.41 in3
  5.94 in3
Body Materials  
Plastic
 Metal
 Plastic

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