Xiaomi Redmi Note 9 vs Note 8

Here we compared two mid-range smartphones: the 6.53-inch Xiaomi Redmi Note 9 (with MediaTek Helio G85) that was released on April 30, 2020, against the Xiaomi Redmi Note 8, which is powered by Qualcomm Snapdragon 665 and came out 8 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 9
  • Comes with 1020 mAh larger battery capacity: 5020 vs 4000 mAh
  • Shows 22% longer battery life (35:35 vs 29:07 hours)
  • 21% better performance in AnTuTu Benchmark (248K versus 204K)
  • More recent OS version: Android 12 versus 11
  • Reverse charging feature
  • 17% faster in single-core GeekBench 5 test: 369 and 315 points
  • The phone is 8-months newer
Reasons to consider the Xiaomi Redmi Note 8
  • Delivers 34% higher peak brightness (626 against 466 nits)
  • Ability to record video in 4K resolution
  • Slow-motion recording at 240FPS

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

Display

Type IPS LCD IPS LCD
Size 6.53 inches 6.3 inches
Resolution 1080 x 2340 pixels 1080 x 2340 pixels
Aspect ratio 19.5:9 19.5:9
PPI 395 ppi 409 ppi
Refresh rate 60 Hz 60 Hz
Max rated brightness 450 nits 450 nits
HDR support No No
Screen protection Corning Gorilla Glass 5 Corning Gorilla Glass 5
Screen-to-body ratio 83.5% 81.7%
Display tests
RGB color space 97.7% -
PWM Not detected -
Response time 32.2 ms -
Contrast 4608:1 -
Peak brightness test (auto)
466 nits
626 nits
Sources: NotebookCheck [3]

Design and build

Height 162.3 mm (6.39 inches) 158.3 mm (6.23 inches)
Width 77.2 mm (3.04 inches) 75.3 mm (2.96 inches)
Thickness 8.9 mm (0.35 inches) 8.4 mm (0.33 inches)
Weight 199 gramm (7.02 oz) 190 gramm (6.7 oz)
Waterproof No No
Rear material Plastic Glass
Frame material Plastic Plastic
Colors White, Gray, Green White, Black, Blue
Fingerprint scanner Yes, rear Yes, rear
Screen-to-body ratio
83.5%
81.7%

Performance

Tests of Xiaomi Redmi Note 9 and Xiaomi Redmi Note 8 in the benchmarks
SoC
Chipset MediaTek Helio G85 Qualcomm Snapdragon 665
Max. clock 2000 MHz 2000 MHz
CPU cores 8 (2 + 6) 8 (4 + 4)
Architecture - 6 cores at 1.8 GHz: Cortex-A55
- 2 cores at 2 GHz: Cortex-A75
- 4 cores at 1.8 GHz: Kryo 260 Silver (Cortex-A53)
- 4 cores at 2 GHz: Kryo 260 Gold (Cortex-A73)
Lithography process 12 nanometers 11 nanometers
Graphics Mali-G52 MP2 Adreno 610
GPU clock 1000 MHz 950 MHz
FLOPS ~59 GFLOPS ~273 GFLOPS
Memory
RAM size 3, 4, 6 GB 3, 4, 6 GB
Memory type LPDDR4X LPDDR4X
Memory clock 2133 MHz 1866 MHz
Channels 2 2
Storage
Storage size 64, 128 GB 32, 64, 128 GB
Storage type eMMC 5.1 eMMC 5.1
Memory card MicroSD MicroSD
Memory card max. size Up to 512 GB Up to 256 GB

Benchmarks

Geekbench 5 (Single-Core)
369
Geekbench 5 (Multi-Core)
1318
AnTuTu Benchmark 9
248518
204824
CPU 70992 66836
GPU 58131 39821
Memory 36905 37987
UX 83025 62159
Total score 248518 204824
3DMark Wild Life Performance
Stability - 98%
Graphics test - 1 FPS
Graphics score - 220
PCMark 3.0 score - 6390
Sources: 3DMark [3]

Software

Operating system Android 10 (Can be upgraded to Android 12) Android 9.0 (Can be upgraded to Android 11)
ROM MIUI 13 MIUI 12.5 Enhanced
OS size 16.5 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 Yes No
Fast charging Yes (50% in 40 min) Yes, Quick Charge 4.0 (50% in 35 min)
Full charging time 1:30 hr 2:05 hr
Battery life tests
Web browsing 12:34 hr 11:36 hr
Watching video 14:56 hr 11:32 hr
Gaming 05:48 hr 05:19 hr
Standby 120 hr 87 hr
General battery life
35:35 hr
29:07 hr

Camera

Specs and camera test of smartphones
Main camera
Matrix 48 megapixels 48 megapixels
Image resolution 8000 x 6000 8000 x 6000
Zoom Digital Digital
Flash LED LED
Stabilization Digital Digital
8K video recording No No
4K video recording No Up to 30FPS
1080p video recording Up to 30FPS Up to 60FPS
Slow motion 120 FPS (720p) 240 FPS (720p)
Angle of widest lens 118° 118°
Lenses 4 (48 MP + 8 MP + 2 MP + 2 MP) 4 (48 MP + 8 MP + 2 MP + 2 MP)
Wide (main) lens - 48 MP
- Aperture: f/1.8
- Focal length: 26 mm
- Pixel size: 0.8 micron
- Sensor: 1/2.0", Samsung S5KGM1 (ISOCELL Plus CMOS)
- Phase autofocus
- 48 MP
- Aperture: f/1.8
- Focal length: 26 mm
- Pixel size: 0.8 micron
- Sensor: 1/2", Samsung S5KGM2 (ISOCELL CMOS)
- Phase autofocus
Ultra-wide lens - 8 MP
- Aperture: f/2.2
- Pixel size: 1.12 micron
- Sensor: 1/4.0" (CMOS)
- 8 MP
- Aperture: f/2.2
- Focal length: 13 mm
- Pixel size: 1.12 micron
- Sensor: 1/5", Omnivision OV8856
Macro lens - 2 MP
- Aperture: f/2.4
- 2 MP
- Aperture: f/2.4
- Pixel size: 1.75 micron
- Sensor: 1/5", Omnivision OV02A10 (CMOS)
Depth lens - 2 MP
- Aperture: f/2.4
- 2 MP
- Aperture: f/2.4
- Pixel size: 1.75 micron
- Sensor: 1/5", Omnivision OV02A10 (CMOS)
Camera features - Bokeh mode
- Pro mode
- Bokeh mode
- Pro mode
Selfie camera
Megapixels 13 megapixels 13 megapixels
Image resolution 4128 x 3096 4224 x 3136
Aperture f/2.3 f/2.0
Focal length 29 mm 28.21 mm
Pixel size 1.12 microns 1.12 microns
Sensor type CMOS -
Sensor size 1/3.1" 1/2.9"
Video resolution 1080p (Full HD) at 30 FPS 1080p (Full HD) at 30 FPS

Connectivity

Wi-Fi standard Wi-Fi 5 (802.11 a/b/g/n/ac) Wi-Fi 5 (802.11 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, HID, A2DP
USB type USB Type-C USB Type-C
USB version 2 2
USB features - Charging
- USB-Storage mode
- OTG
- Charging
- USB-Storage mode
- OTG
GPS GPS, GLONASS, Beidou, Galileo GPS, GLONASS, Beidou
NFC* Yes No
Infrared port Yes Yes
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* 7 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
92.4 dB
81.3 dB

Other

Category Mid-range Mid-range
Announced April 2020 August 2019
Release date June 2020 September 2019
SAR (head) 0.8 W/kg 0.191 W/kg
SAR (body) 1.14 W/kg 1.034 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 performance, software, battery life, and sound are more important to you, then choose the Xiaomi Redmi Note 9. But if the camera and design are more of a priority – go for the Xiaomi Redmi Note 8.

Cast your vote

So, which phone would you choose?
943 (47.7%)
1033 (52.3%)
Total votes: 1976

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