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Xiaomi Redmi Note 9S vs Mi 9T

Here we compared two mid-range smartphones: the 6.67-inch Xiaomi Redmi Note 9S (with Qualcomm Snapdragon 720G) that was released on March 23, 2020, against the Xiaomi Mi 9T, which is powered by Qualcomm Snapdragon 730 and came out 10 months before. On this page, you will find tests, full specs, strengths, and weaknesses of each of the gadgets.

Key differences

An overview of the main advantages of each smartphone
Reasons to consider the Xiaomi Redmi Note 9S
  • Comes with 1020 mAh larger battery capacity: 5020 vs 4000 mAh
  • Shows 27% longer battery life (127 vs 100 hours)
  • Expandable storage via MicroSD card up to 512GB
  • The phone is 10-months newer
  • Has a built-in infrared port
Reasons to consider the Xiaomi Mi 9T
  • The rear camera has a 2x optical zoom
  • Has 50% more RAM: 6GB versus 4GB
  • Delivers 12% higher maximum brightness (653 against 585 nits)
  • AMOLED display (versus competitor's IPS LCD)
  • Weighs 19 grams less

Review

Display
Screen quality, color accuracy, brightness
Performance
CPU/GPU performance in apps and games
Battery
Battery life, charging type and speed
Camera
Photo and video recording quality
Connectivity
Networks, ports, data transmission
NanoReview score
Final comparison evaluation

Value for money

You can enter your local price of these phones (in USD or any other currency) and click on the "Calculate" button to see which one has a better value for money.
Price

Tests and specifications

Comparison table of technical specifications and tests
Phone:
vs

Display

Type IPS LCD AMOLED
Size 6.67 inches 6.39 inches
Resolution 1080 x 2400 pixels 1080 x 2340 pixels
Aspect ratio 20:9 19.5:9
PPI 395 ppi 403 ppi
Refresh rate 60 Hz 60 Hz
HDR support Yes, HDR10 Yes, HDR10
Screen protection Corning Gorilla Glass 5 Corning Gorilla Glass 5
Screen-to-body ratio 84.5% 86.1%
Display features - - Always-On Display
Display tests
RGB color space 114.9% 95.1%
PWM Not detected 245 Hz
Response time 34 ms 3.6 ms
Contrast 1111:1 ∞ Infinity
Max. Brightness
585 nits
Mi 9T +12%
653 nits
Sources: NotebookCheck [1], [2]

Design and build

Height 166 mm (6.54 inches) 156.7 mm (6.17 inches)
Width 77 mm (3.03 inches) 74.3 mm (2.93 inches)
Thickness 8.8 mm (0.35 inches) 8.8 mm (0.35 inches)
Weight 210 gramm (7.41 oz) 191 gramm (6.74 oz)
Waterproof No No
Rear material Glass Glass
Frame material Plastic Metal
Colors White, Black, Blue Black, Blue, Red
Fingerprint scanner Yes, in home button Yes, in-display
Screen-to-body ratio
Mi 9T +2%
86.1%

Performance

Tests of Xiaomi Redmi Note 9S and Xiaomi Mi 9T in the benchmarks
SoC
Chipset Qualcomm Snapdragon 720G Qualcomm Snapdragon 730
Max. clock 2300 MHz 2200 MHz
CPU cores 8 (2 + 6) 8 (2 + 6)
Architecture - 6 cores at 1.8 GHz: Kryo 465 Silver (Cortex-A55)
- 2 cores at 2.3 GHz: Kryo 465 Gold (Cortex-A76)
- 6 cores at 1.8 GHz: Kryo 470 Silver (Cortex-A55)
- 2 cores at 2.2 GHz: Kryo 470 Gold (Cortex-A76)
L3 cache 1 MB -
Lithography process 8 nanometers 8 nanometers
Graphics Adreno 618 Adreno 618
GPU clock 750 MHz 500 MHz
FLOPS ~435 GFLOPS ~386 GFLOPS
Memory
RAM size 4 GB 6 GB
Memory type LPDDR4X LPDDR4X
Memory clock 2133 MHz 1866 MHz
Channels 2 2
Storage
Storage size 64 GB 64, 128 GB
Storage type UFS 2.1 UFS 2.1
Memory card MicroSD No
Memory card max. size Up to 512 GB -

Benchmarks

Geekbench 5 (Single-Core)
582
553
Geekbench 5 (Multi-Core)
1764
1647
AnTuTu Benchmark 7
215773
AnTuTu Benchmark 8
279535
261048
AnTuTu Rating (242nd and 269th place)

Software

Operating system Android 10.0 Android 9.0 (Can be upgraded to Android 10)
ROM MIUI 12 MIUI 12
OS size 18 GB 11.3 GB

Battery

Specifications
Capacity 5020 mAh 4000 mAh
Charge power 18 W 18 W
Battery type Li-Po Li-Po
Replaceable No No
Wireless charging No No
Reverse charging No No
Fast charging Yes (50% in 50 min) Yes (45% in 30 min)
Full charging time 2:30 hr 1:25 hr

Battery life tests

Web browsing (Wi-Fi)
19:12 hr
11:53 hr
Watching videos (Player)
16:30 hr
Mi 9T +5%
17:19 hr
Talk (3G)
41:30 hr
33:20 hr
Mobile Phone Battery Life Ranking (17th and 112th place)

Camera

Specs and camera test of smartphones
Main camera
Matrix 48 megapixels 48 megapixels
Image resolution 8000 x 6000 8000 x 6000
Zoom Digital Optical, 2x
Flash LED Dual LED
Stabilization Digital Digital
8K video recording No No
4K video recording Up to 30FPS Up to 30FPS
1080p video recording Up to 60FPS Up to 240FPS
Slow motion 960 FPS (1080p) 960 FPS (1080p)
Angle of widest lens 119° 124°
Lenses 4 (48 MP + 8 MP + 5 MP + 2 MP) 3 (48 MP + 8 MP + 13 MP)
Wide (main) lens - 48 MP
- Aperture: f/1.8
- Focal length: 26 mm
- Pixel size: 0.8 micron
- Sensor: 1/2", Samsung S5KGM2 (ISOCELL CMOS)
- Phase autofocus
- 48 MP
- Aperture: f/1.8
- Focal length: 26 mm
- Pixel size: 0.8 micron
- Sensor: 1/2", Sony IMX582 (Exmor-RS CMOS)
- Phase autofocus
Telephoto lens - - 8 MP
- Aperture: f/2.4
- Focal length: 53 mm
- Pixel size: 1.12 micron
- Sensor: 1/4", Omnivision OV8865 (BSI CMOS)
- Phase autofocus
Ultra-wide lens - 8 MP
- Aperture: f/2.2
- Focal length: 13 mm
- Pixel size: 1.12 micron
- Sensor: 1/4.0", Omnivision OV8856
- 13 MP
- Aperture: f/2.4
- Focal length: 12 mm
- Pixel size: 1.12 micron
- Sensor: 1/3.1", Samsung S5K3L6 (ISOCELL CMOS)
Macro lens - 5 MP
- Aperture: f/2.4
- Pixel size: 1.12 micron
-
Depth lens - 2 MP
- Aperture: f/2.4
- Pixel size: 1.75 micron
-
Camera features - Bokeh mode
- Pro mode
- Bokeh mode
- Pro mode
- RAW support
Selfie camera
Megapixels 16 megapixels 20 megapixels
Image resolution 4920 x 3264 5184 x 3880
Aperture f/2.5 f/2.2
Focal length - 18 mm
Pixel size 1 microns 0.8 microns
Sensor type CMOS CMOS
Sensor size 1/3.06" 1/3.4"
Video resolution 1080p (Full HD) при 30 FPS 1080p (Full HD) при 30 FPS

Connectivity

Wi-Fi standard Wi-Fi 5 (802.11 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
NFC* No Yes
Infrared port Yes No
Network
Number of SIM* 2 2
Type of SIM card Nano Nano
Multi SIM mode Standby Standby
eSIM support* No No
Hybrid slot No No
LTE Cat* 12 12
5G support No No

Sound

Speakers Mono Mono
Headphone audio jack Yes Yes
FM radio Yes Yes
Dolby Atmos No No
Speakers test
Max. loudness
Mi 9T +10%
89 dB

Other

Category Mid-range Mid-range
Announced March 2020 May 2019
Release date April 2020 June 2019
Launch price ~ 225 USD ~ 275 USD
SAR (head) 0.72 W/kg 1.34 W/kg
SAR (body) 0.98 W/kg 1.51 W/kg
Sensors - Proximity sensor
- Gyroscope
- Accelerometer
- Ambient light sensor
- Compass
- Fingerprint
- Proximity sensor
- Gyroscope
- Accelerometer
- Ambient light sensor
- Compass
- Fingerprint
*Disclaimer! NFC, GSM network support, and some other specs can be different depending on the country.

Conclusion

If the battery life is more important to you, then choose the Xiaomi Redmi Note 9S. But if the design and sound are more of a priority – go for the Xiaomi Mi 9T.

Cast your vote

So, which phone would you choose?
233 (61.3%)
147 (38.7%)
Total votes: 380

User opinions

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