Lenovo S820 vs Xiaomi Redmi Note 4X: Comparison

Comparison of features, performance, design, battery, camera and connectivity between the following smartphones: Lenovo S820 vs Xiaomi Redmi Note 4X. The complete information of specifications to decide which to buy.

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Lenovo S820Lenovo S820China · 1GB · 4GB
Xiaomi Redmi Note 4XXiaomi Redmi Note 4XChina · 3GB · 32GB
Technical data sheets

Basics
Lenovo S820
Lenovo S820
China · 1GB · 4GB
View datasheet
vs
Xiaomi Redmi Note 4X
Xiaomi Redmi Note 4X
China · 3GB · 32GB
View datasheet
vs

Score
Ki Cost-effective
Score		 -- Not available -- Not available
Design and Screen score --Design & Materials --Design & Materials
Performance and Hardware score --Performance & Hardware --Performance & Hardware
Camera score --Camera --Camera
Connectivity score -- Connectivity -- Connectivity
Battery score --Battery --Battery

User reviews
User score
--
3 reviews
8.6
235 reviews

Technical specifications of the Lenovo S820 vs Xiaomi Redmi Note 4X

Specs stores to buy Lenovo S820 Lenovo S820
China · 1GB · 4GB 		Xiaomi Redmi Note 4X price compare Xiaomi Redmi Note 4X
China · 3GB · 32GB
Inches 4.7" 5.5"
Resolution HD FHD
Usable surface 62% useful 72% useful
Aspect Ratio 16:9 16:9
Dimensions 69.7 mm
139.5 mm
9.0 mm 		76.0 mm
151.0 mm
8.4 mm
Weight 143 g 165 g
Micro MT6589
Quad-Core 		SnapD. 625
Octa-Core
RAM 1 GB RAM 3 GB RAM
Storage 4 GB 32 GB
AnTuTu 14.028
v? 		107.194
v9
Battery 2000 mAh 4100 mAh
Main Camera 1
12 Mpx · Unknow

1
13 Mpx · ƒ/2.0
OV13855
Selfie Camera SELF 2 Mpx · ƒ/-- SELF 5 Mpx · ƒ/--
Bands
OS Android 4.1 Jelly Bean Android 7.0 Nougat

Brand
Brand Lenovo Xiaomi
Aliases IdeaPhone S820, LePhone S820 --

Release Date
Release date May 2013,
11 years ago 		February 2017,
7 years ago
State Not available Not available
Market China China

Design & Materials

Structure

Lenovo S820
Xiaomi Redmi Note 4X
Lenovo S820
Xiaomi Redmi Note 4X
Size
69.7 mm • 139.5 mm • 9.0 mm
See more details
 Print 3D Model
76.0 mm • 151.0 mm • 8.4 mm
See more details
 Print 3D Model
Weight 143 g 165 g
Usable surface 62 % 72 %
Materials Polycarbonate Plastic, Metal
Resistance - -
Colors
Black

Gold

Screen
Diagonal 4.7" 5.5"
Type LCD IPS • LCD IPS
Aspect Ratio 16:9 16:9
Resolution HD
720 x 1280 px 		FHD
1080 x 1920 px
Density 312 Pixels per inch 401 Pixels per inch

Others

Others
  • Without Notch
  • Scratch resistant
  • Corning Gorilla Glass
  • Curved Glass display
  • Capacitive
  • Multi-touch
  • Without Notch
  • Brightnes 450 cd/m² (typ)
  • 1000:1 contrast ratio
  • NTSC
  • 72% NTSC
  • Color LED Notifications
  • Scratch resistant
  • 2.5D curved glass screen
  • Capacitive
  • Multi-touch
  • Viewing angle - 178°

User reviews

Is it a drop-resistant and scratch-resistant smartphone?
--
7.4
Do you think it's a nice phone?
--
8.5
Is it comfortable?
--
8.5
Can you see it well in the sunlight?
--
7.7
Number of reviews
--
235 reviews

Performance & Hardware

Processor
Model MediaTek MT6589 Qualcomm Snapdragon 625 MSM8953
CPU 4x Cortex-A7 1.2 GHz 8x Cortex-A53 2.0 GHz
Type Quad-Core Octa-Core
Manufacturing 28 nm 14 nm
64 Bits No Yes

Graphics
GPU PowerVR SGX544 Qualcomm Adreno 506

RAM
RAM 1 GB 3 GB
Type -- LPDDR3 RAM

Antutu
Score
14.028
Antutu v?
Overall performance better than 7% of devices
See more details
107.194
Antutu v9
Overall performance better than 32% of devices
See more details

Storage
Capacity 4 GB 32 GB
Type -- --
SD Slot Yes ,
Independent SD slot 		Yes ,
Slot for SD or second SIM card

Security
Fingerprint No Yes, in the back

Sensors
Sensors
  • Proximity
  • Light sensor
  • Accelerometer
  • Compass
  • Fingerprint
  • Proximity
  • Light sensor
  • Accelerometer
  • Compass
  • Gyroscope
  • Hall

Audio

Audio
-
-

Others
Notifications LED -- Color LED Notifications
Cooling system No No
Gaming buttons No No

User reviews

Does it have good sound?
--
7.8
Does it work smoothly in everyday use?
--
8.9
What's your experience been with demanding games?
--
7.9
Number of reviews
--
235 reviews

Camera

Main
No. of cameras Rear camera Rear camera
1
Camera type

Standard

Standard
Resolution 12 Mpx 13 Mpx
Sensor Unknown Omnivision OV13855
Type Unknown PureCel
Aperture Unknow ƒ/ 2.0
ISO -- --
Pixel size -- 1.12 µm
Pixel Binning -- --
Sensor size -- 1/2.9"

Features
Flash LED Dual LED
Optical Stabilisation No No
Slow Motion Video No,
30 fps 		Yes,
120 fps
Others
  • Digital zoom
  • Digital image stabilization
  • Autofocus
  • Touch focus
  • Continuous shooting
  • Geotagging
  • Panorama
  • HDR
  • Face detection
  • White balance settings
  • ISO settings
  • Exposure compensation
  • Scene mode
  • Self-timer

Selfie
SELF
Camera type

Dedicated

Dedicated
Resolution 2 Mpx 5 Mpx
Sensor Unknown Unknown
Type -- --
Aperture ƒ/ -- ƒ/ --
Pixel size -- --
Pixel Binning -- --
Sensor size -- --
Others
--
--

DxOMark Score
DxOMark Score -- --

User reviews

Quality of daytime photos
--
8.2
Quality of nighttime photos
--
5.9
Quality of selfies
--
7.2
Does it have a powerful flash?
--
8.0
Number of reviews
--
235 reviews

Connectivity

Network compatibility

5G -- --
4G LTE --
  • B1 (2100)
  • B3 (1800)
  • B5 (850)
  • B7 (2600)
  • B38 (TDD 2600)
  • B39 (TDD 1900)
  • B40 (TDD 2300)
  • B41 (TDD 2500)
3G
  • B1 (2100)
  • B8 (900)
  • B1 (2100)
  • B2 (1900)
  • B5 (850)
  • B8 (900)
  • B34 (TD 2000)
  • B39 (TD 1900+)
2G
  • B2 (1900)
  • B3 (1800)
  • B8 (900)
  • CDMA BC0 (800)
  • B2 (1900)
  • B3 (1800)
  • B5 (850)
  • B8 (900)

SIM card
Dual SIM Dual Sim Dual Standby Dual Sim Dual Standby
Type
  • Unknown
  • Unknown
  • Nano SIM
  • Micro SIM

Wi-Fi
Wi-Fi
  • 802.11a
  • 802.11b
  • 802.11g
  • 802.11n
  • 802.11a
  • 802.11b
  • 802.11g
  • 802.11n
  • 802.11ac
Others
  • Dual band
  • Wi-Fi Hotspot
  • Wi-Fi Hotspot
  • Wi-Fi Direct
  • Wi-Fi Display

Bluetooth
Version Bluetooth 3.0 Bluetooth 4.2 LE Low energy consumption
Others
  • A2DP (Advanced Audio Distribution Profile)
  • A2DP (Advanced Audio Distribution Profile)
  • HID (Human Interface Profile)
  • LE (Low Energy)

Navigation
Navigation
  • GPS
  • A-GPS
  • GPS
  • A-GPS
  • GLONASS
  • Beidou

USB
USB
  • Charging
  • Charging
  • USB On-The-Go (OTG)

SAR
European measurement

The European Union sets a limit of 2 W/kg averaged over 10 grams of tissue.

 -- W/Kg on head
0.572 W/Kg on body 		--
American measurement

The FCC limit is 1.6 W/kg measured in a volume of 1 gram of tissue

 -- --

Others
Others
  • Audio Jack
  • Radio FM
  • Computer sync
  • OTA sync
  • Tethering.
  • DLNA
  • Audio Jack
  • Radio FM
  • Computer sync
  • OTA sync
  • Infrared
  • Tethering.
  • VoLTE

User reviews

Does it have good coverage for calls?
--
8.7
Quality of the GPS
--
8.6
And the WiFi?
--
9.0
Number of reviews
--
235 reviews

Battery

Battery
Capacity
2000 mAh
See more details
4100 mAh
See more details
Type Li-Polymer Li-Polymer
Fast charge No No
Others
  • Removable
  • Non-removable

User reviews

How long does the battery last?
--
  • 2%
    Less than half day
  • 4%
    Less than a day
  • 17%
    One day
  • 50%
    More than one day
  • 28%
    Two days or more
Number of reviews
--
235 reviews

Software

Software
Operating System
  • Android 4.2 Jelly Bean
    Android 4.1 Jelly Bean, 11 years ago
  • MIUI V9 (Android 7.1 Nougat)
    Android 7.0 Nougat, 7 years ago
Google Services (official) Yes No

User reviews

Did it come with preinstalled applications?
--
  • 5%
    It comes with a clean operating system
  • 80%
    It has preinstalled apps but they don't bother me
  • 15%
    It has preinstalled apps that I can't uninstall
Do you regularly receive updates?
--
  • 4%
    Never
  • 6%
    Once a year
  • 38%
    Every six months
  • 52%
    Every two months or less
Number of reviews
--
235 reviews
Prices
Prices unavailable
Prices unavailable