Home Phone comparison Xiaomi Redmi Note 9S and Xiaomi Mi 9 - Which is better?

Xiaomi Redmi Note 9S vs Xiaomi Mi 9

49 out 100
Xiaomi Redmi Note 9S
VS
50 out 100
Xiaomi Mi 9
Xiaomi Redmi Note 9S
Xiaomi Mi 9

Compared 2 smartphones : Xiaomi Redmi Note 9S Manufactured in April, 2020, with display 6.67 with chipsetQualcomm Snapdragon 720G, vs Xiaomi Mi 9, Manufactured in April, 2019with chipsetQualcomm Snapdragon 855. Below are specs, tests, pros and cons for each device

  1. Differences
  2. Review
  3. Specs
  4. Benchmarks
  5. Battery Life
  6. Cameras
  7. Comments (0)

Key Differences

Device key advantages
Reasons to choose Xiaomi Redmi Note 9S
  • Larger display: 6.67in
  • Higher battery capacity: 5020mAh vs 3300mAh
Reasons to choose Xiaomi Mi 9
  • Higher pixel density: 403ppi
  • Lighter design: 173g vs 210g

Versions

Available versions and configurations
Memory Options - 4/64 GB
- 4/128 GB
- 6/64 GB
- 6/128 GB		 - 6/64 GB
- 6/128 GB
- 8/64 GB
- 8/128 GB
- 8/256 GB

Review

Key Specs Xiaomi Redmi Note 9S and Xiaomi Mi 9
Display
Color accuracy, sharpness & brightness
Camera
Main & front camera tests
Performance
App & system performance
Games
3D gaming performance
Battery
Battery life, charging speed & type
Connectivity
Connectivity features
NanoReview Score
Overall score by NanoReview
Adjust each parameter’s importance to find the best match for you.
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Function
Importance (Weight)
Display:
Camera:
Performance:
Gaming:
Battery:
Connectivity:
Higher weight means greater impact on NanoReview score.

Tests & specs

Specs & test comparison
Smartphones:
Xiaomi Redmi Note 9S
vs
Xiaomi Mi 9

Display

Display quality comparison
Type IPS LCD AMOLED
Size 6.67 in 6.39 in
Resolution 1080x2400 pixels 1080x2340 pixels
Aspect ratio 20:9 19.5:9
Pixel density 395 ppi 403 ppi
Refresh rate 60 Hz 60 Hz
Adaptive refresh rate No No
Max brightness 628 nits 600 nits
HDR support Yes HDR10 Yes HDR10
Screen-to-body ratio 84 % 85.3 %
Features n/a - Always-On Display
- DC dimming
Display test
Peak brightness (auto)
Xiaomi Redmi Note 9S
571 nits
Xiaomi Mi 9
619 nits
sRGB gamut114.9 %95.4 %
PWM (Flicker)n/a245 Hz
Response time34 ms4.2 ms
Contrast1111:1∞ Infinite
Sources: NotebookCheck [Xiaomi Redmi Note 9S], [Xiaomi Mi 9]

Design & Build

Design and ergonomics comparison
Height 166 mm (6.54 in) 157.5 mm (6.2 in)
Width 77 mm (3.03 in) 74.6 mm (2.94 in)
Thickness 8.8 mm (0.35 in) 7.6 mm (0.3 in)
Weight 210 g (7.41 oz) 173 g (6.1 oz)
Water resistance No No
Back panel Glass Glass
Frame Plastic Metal
Colors - White
- Black
- Blue		 - Black
- Blue
- Purple
Fingerprint sensor Yes In-Button Yes In-Display
Screen-to-body ratio
Xiaomi Redmi Note 9S
84 %
Xiaomi Mi 9
85.3 %

Performance

Testing Xiaomi Redmi Note 9S and Xiaomi Mi 9 In benchmarks
Processor
Chipset Qualcomm Snapdragon 720G Qualcomm Snapdragon 855
Max Frequency 2300 MHz 2840 MHz
CPU Cores 8 (2 + 6) 8 (1 + 3 + 4)
Architecture - 6/1.8 (Kryo 465 Silver (Cortex-A55))
- 2/2.3 (Kryo 465 Gold (Cortex-A76))		 - 4/1.8 (Cortex-A55 (Kryo 485 Silver))
- 3/2.42 (Cortex-A76 (Kryo 485 Gold))
- 1/2.84 (Cortex-A76 (Kryo 485 Gold))
Process Samsung TSMC
Transistor Size 8 nm 7 nm
Neural Processor Hexagon 692 Hexagon 690
Graphics Adreno 618 Adreno 640
GPU Cores 256 768
GPU Frequency 750 MHz 585 MHz
FLOPS 384 GFLOPS 898.5 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Xiaomi Redmi Note 9S
722
Xiaomi Mi 9
898
Geekbench 6 (Multi-Core)
Xiaomi Redmi Note 9S
1880
Xiaomi Mi 9
2206
Geekbench 6 (Single-Core)722898
Geekbench 6 (Multi-Core)18802206
AnTuTu 10
AnTuTu 10
Xiaomi Redmi Note 9S
387217
Xiaomi Mi 9
651041
CPU130988209300
GPU90091191747
Memory72615113809
UX93523136185
NanoReview Score387217651041
3DMark Wild Life
3DMark Wild Life
Xiaomi Redmi Note 9S
1041
Xiaomi Mi 9
3100
Max Surface Temp.42.4 °C35.6 °C
Stability98 %91 %
Graphics Test6 fps18 fps
Graphics Score10413100
Sources: 3DMark [Xiaomi Redmi Note 9S], [Xiaomi Mi 9]
PCMark 3.0
PCMark 3.0
Xiaomi Redmi Note 9S
8091
Xiaomi Mi 9
10649
Writing score966314618
Web score59437084
Video editing54376715
Data manipulation68027931
NanoReview Score809110649

Memory

RAM
RAM Size - 4 GB
- 6 GB		 6 GB
Memory Type LPDDR4X LPDDR4X
Memory Frequency 2133 MHz 2133 MHz
Channels 2 2
Storage
Storage Capacity- 64 GB
- 128 GB		128 GB
Storage TypeUFS 2.1UFS 2.1
Memory CardMicroSDNo

Software

OS Android 10.0 (Upgradeable to Android 12) Android 9.0 (Upgradeable to Android 11)
OS Size 18 GB 13.5 GB
UI Skin MIUI 14 MIUI 12.5

Battery

Volume 5020 mAh 3300 mAh
Max Charging Power 18 W 27 W
Battery Type Li-Po Li-Po
Removable No No
Wireless Charging No Yes (20 W)
Reverse Charging No No
Fast Charging Yes (50% in 50 min) Yes Quick Charge 4 (50% in 30 min)
Full Charge Time 2:30 h 1:30 h
Battery Life Test
Battery Life
Xiaomi Redmi Note 9S
26:58
Xiaomi Mi 9
17:14
Web Browsing10:56 h06:08 h
Video Playback15:15 h11:37 h
Games05:45 h04:07 h
Standby Mode136 h83 h

Main camera

Matrix 48 MP 48 MP
Photo resolution 8000x6000 pixels 8000x6000 pixels
Zoom Digital Optical, 2x
Flash LED Dual LED
Stabilization Digital Digital
8K Recording No No
4K Recording Yes (Up to 30 fps) Yes (Up to 60 fps)
1080p Recording Yes (Up to 60 fps) Yes (Up to 60 fps)
Slow Motion 960 fps (720p) 960 fps (1080p)
Wide-angle lens 119 ° 117 °
Lenses count Standard: 48 MP
Ultra-wide: 8 MP
Macro: 5 MP
Depth: 2 MP		 Standard: 48 MP
Telephoto: 12 MP
Ultra-wide: 16 MP
Features - Bokeh effect
- Pro mode		 - Bokeh effect
- Pro mode
- RAW support
Main lens
Matrix48 MP48 MP
Aperturef/1.8f/1.8
Focal length26 mm27 mm
SensorSamsung S5KGM2Sony IMX586
Sensor size1/21/2
Pixel size0.8 μm0.8 μm
AutofocusPhase autofocusLaser autofocus
StabilizationDigitalDigital
Telephoto
Matrixn/a12 MP
Aperturen/af/2.2
Focal lengthn/a54 mm
Sensorn/aSamsung S5K3M5
Sensor sizen/a1/3.6
Pixel sizen/a1 μm
Stabilizationn/aDigital
Ultra-wide lens
Matrix8 MP16 MP
Aperturef/2.2f/2.2
Focal length13 mm13 mm
SensorOmnivision OV8856Sony IMX481
Sensor size1/4.01/3.0
Pixel size1.12 μm1 μm
StabilizationDigitalDigital
Main camera DxOMark results
Photo quality
Xiaomi Redmi Note 9S
n/a
Xiaomi Mi 9
112
Video quality
Xiaomi Redmi Note 9S
n/a
Xiaomi Mi 9
99
Overall camera score
Xiaomi Redmi Note 9S
n/a
Xiaomi Mi 9
107
Sources: DxOMark [Xiaomi Mi 9]

Front camera

Matrix 16 MP 20 MP
Photo resolution 4920x3264 pixels 5184x3880 pixels
Aperture f/2.5 f/2.0
Focal length n/a 18 mm
Sensor Omnivision OV16A1Q CMOS
Sensor size 1/3.06 1/3
Pixel size 1 μm 0.9 μm
Autofocus No No
Stabilization Digital Digital
Video resolution 1080p (Full HD) at 30 fps 1080p (Full HD) at 30 fps
TOF 3D sensor No No

Connectivity

Wi-Fi version Wi-Fi 5 (802.11 a/b/g/n/ac) Wi-Fi 5 (802.11 a/b/g/n/ac)
Wi-Fi features - Dual Band
- Wi-Fi Direct
- Wi-Fi Hotspot
- Wi-Fi Display		 - Dual Band
- Wi-Fi Direct
- Wi-Fi Hotspot
- Wi-Fi Display
Bluetooth version 5 5
Bluetooth features LE, HID, A2DP LE, A2DP
USB type USB Type-C USB Type-C
USB version 2 2
USB features - Charging
- USB Storage Mode
- OTG		 - Charging
- USB Storage Mode
- USB-Host mode
- OTG
GPS - GPS
- GLONASS
- Beidou
- Galileo
- NAVIC		 - GPS
- GLONASS
- Beidou
- Galileo
NFC* No Yes
Infrared Port Yes Yes
Connectivity
SIM Count*22
SIM TypeNanoNano
SIM ModeDual SIM StandbyDual SIM Standby
eSIM Support *NoNo
Hybrid SlotNoNo
2G BandsGSM 850 / 900 / 1800 / 2100 / 2600 / 2300 / 2500GSM 850, GSM 900, GSM 1800, GSM 1900
3G BandsHSDPA 850 / 900 / 1900 / 2100HSDPA 850, HSDPA 900, HSDPA 1900, HSDPA 2100
LTE Bands*LTE (B850/B900/B1800/B2100/B2300/B2500/B2600)LTE (B800/B900/B1800/B2100/B2300/B2500/B2600)
LTE category1220
5G SupportNoNo

Sound

Speakers Mono Mono
3.5 mm Jack Yes No
FM Radio Yes No
Dolby Atmos No No
Speaker Test
Max Volume
Xiaomi Redmi Note 9S
81 dB
Xiaomi Mi 9
87.1 dB

Other

Class Mid-range Flagship
Announced March, 2020 yr February, 2019 yr
Release Date April, 2020 yr April, 2019 yr
Launch Price ($) 200 460
Sensors - Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor		 - Hall Sensor
- Barometer
- Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor
* Attention! Config, frequencies, NFC, and other specs may vary by region.

Results

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