Xiaomi Redmi Note 8 vs Redmi 9

46 out of 100
Xiaomi Redmi Note 8
VS
47 out of 100
Xiaomi Redmi 9

Here we compared two smartphones: the 6.3-inch Xiaomi Redmi Note 8 (with Qualcomm Snapdragon 665) that was released on August 29, 2019, against the Xiaomi Redmi 9, which is powered by MediaTek Helio G80 and came out 10 months after. On this page, you will find tests, full specs, strengths, and weaknesses of each of the devices.

Key differences

An overview of the main advantages of each smartphone
Reasons to consider the Xiaomi Redmi Note 8
  • Delivers 48% higher peak brightness (626 against 423 nits)
  • Ability to record video in 4K resolution
  • Slow-motion recording at 240FPS
Reasons to consider the Xiaomi Redmi 9
  • Comes with 1020 mAh larger battery capacity: 5020 vs 4000 mAh
  • Shows 15% longer battery life (32:52 vs 28:42 hours)
  • More recent OS version: Android 12 versus 11
  • 13% faster in single-core GeekBench 5 test: 357 and 315 points
  • The phone is 10-months newer

Review

Evaluation of Xiaomi Redmi Note 8 and Redmi 9 crucial features
Display
Screen quality, color accuracy, brightness
Camera
Photo and video recording quality
Performance
CPU and memory performance (apps, system)
Gaming
Capabilities for playing modern games
Battery
Battery life, charging type and speed
Connectivity
Networks, ports, data transmission
NanoReview Score
Final comparison evaluation
Choose the importance of each parameter to more accurately identify the smartphone that best meets your particular needs.
Adjust priorities
Feature
Priority (Weight)
Display:
Camera:
Performance:
Gaming:
Battery Life:
Connectivity:
The higher the priority, the more it will affect the final NanoReview score.

Value for money

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

Tests and specifications

Comparison table of technical specifications and tests
Phone:
vs

Display

Type IPS LCD IPS LCD
Size 6.3 inches 6.53 inches
Resolution 1080 x 2340 pixels 1080 x 2340 pixels
Aspect ratio 19.5:9 19.5:9
PPI 409 ppi 395 ppi
Refresh rate 60 Hz 60 Hz
Adaptive refresh rate No No
Max rated brightness 450 nits 400 nits
HDR support No No
Screen protection Corning Gorilla Glass 5 Corning Gorilla Glass 3
Screen-to-body ratio 81.7% 83.2%
Display tests
RGB color space - 93%
PWM - 500 Hz
Response time - 35 ms
Contrast - 710:1
Peak brightness test (auto)
626 nits
423 nits
Sources: NotebookCheck [3]

Design and build

Height 158.3 mm (6.23 inches) 163.3 mm (6.43 inches)
Width 75.3 mm (2.96 inches) 77 mm (3.03 inches)
Thickness 8.4 mm (0.33 inches) 9.1 mm (0.36 inches)
Weight 190 g (6.7 oz) 198 g (6.98 oz)
Waterproof No No
Rear material Glass Plastic
Frame material Plastic Plastic
Colors White, Black, Blue Gray, Green, Purple
Fingerprint scanner Yes, rear Yes, rear
Screen-to-body ratio
81.7%
Redmi 9 +2%
83.2%

Performance

Tests of Xiaomi Redmi Note 8 and Xiaomi Redmi 9 in the benchmarks
SoC
Chipset Qualcomm Snapdragon 665 MediaTek Helio G80
Max clock 2000 MHz 2000 MHz
CPU cores 8 (4 + 4) 8 (2 + 6)
Architecture - 4 cores at 1.8 GHz: Kryo 260 Silver (Cortex-A53)
- 4 cores at 2 GHz: Kryo 260 Gold (Cortex-A73)
- 6 cores at 1.8 GHz: Cortex-A55
- 2 cores at 2 GHz: Cortex-A75
L3 cache - 1 MB
Lithography process 11 nanometers 12 nanometers
Graphics Adreno 610 Mali-G52 MP2
GPU clock 950 MHz 950 MHz
FLOPS ~243 GFLOPS ~54.6 GFLOPS

Benchmarks

Geekbench 5 (Single-Core)
Redmi 9 +13%
357
Geekbench 5 (Multi-Core)
1306
AnTuTu Benchmark 9
204833
Redmi 9 +5%
214696
CPU 66836 73253
GPU 39821 36316
Memory 37987 39388
UX 62159 67606
Total score 204833 214696
3DMark Wild Life Performance
Redmi 9 +154%
664
Max surface temperature - 47 °C
Stability 98% 98%
Graphics test 1 FPS 3 FPS
Graphics score 261 664
Web score 5621 7317
Video editing 4907 5459
Photo editing 11582 19575
Data manipulation 5171 6258
Writing score 6638 9081
Sources: 3DMark [3], [4]

Memory

RAM
RAM size 3, 4, 6 GB 3, 4, 6 GB
Memory type LPDDR4X LPDDR4X
Memory clock 1866 MHz 1866 MHz
Channels 2 2
Storage
Storage size 32, 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 256 GB Up to 512 GB

Software

Operating system Android 9.0 (Can be upgraded to Android 11) Android 10 (Can be upgraded to Android 12)
ROM MIUI 12.5 Enhanced MIUI 13
OS size - 13 GB

Battery

Capacity 4000 mAh 5020 mAh
Max 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, Quick Charge 4.0 (50% in 35 min) Yes (50% in 80 min)
Full charging time 2:05 hr 3:05 hr
Battery life tests
Web browsing 11:17 hr 11:11 hr
Watching video 11:32 hr 13:39 hr
Gaming 05:00 hr 05:25 hr
Standby 87 hr 116 hr
General battery life
28:42 hr
Redmi 9 +15%
32:52 hr

Camera

Specs and camera test of smartphones
Main camera
Matrix 48 megapixels 13 megapixels
Image resolution 8000 x 6000 4128 x 3096
Zoom Digital Digital
Flash LED LED
Stabilization Digital Digital
8K video recording No No
4K video recording Up to 30FPS No
1080p video recording Up to 60FPS Up to 30FPS
Slow motion 240 FPS (720p) 120 FPS (720p)
Angle of widest lens 118° 118°
Lenses 4 (48 MP + 8 MP + 2 MP + 2 MP) 4 (13 MP + 8 MP + 5 MP + 2 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
- 13 MP
- Aperture: f/2.2
- Focal length: 28 mm
- Pixel size: 1.12 micron
- Sensor: 1/3.1" (CMOS)
- Phase autofocus
Ultra-wide lens - 8 MP
- Aperture: f/2.2
- Focal length: 13 mm
- Pixel size: 1.12 micron
- Sensor: 1/5", Omnivision OV8856 (PureCel)
- 8 MP
- Aperture: f/2.2
- Focal length: 13 mm
- Pixel size: 1.12 micron
- Sensor: 1/4.0", OmniVision OV8856
Macro lens - 2 MP
- Aperture: f/2.4
- Pixel size: 1.75 micron
- Sensor: 1/5", Omnivision OV02A10 (PureCel)
- 5 MP
- Aperture: f/2.4
- Pixel size: 1.12 micron
Depth lens - 2 MP
- Aperture: f/2.4
- Pixel size: 1.75 micron
- Sensor: 1/5", Omnivision OV02A10 (CMOS)
- 2 MP
- Aperture: f/2.4
- Pixel size: 1.75 micron
- Sensor: 1/5", GalaxyCore GC02M1 (CMOS)
Camera features - Bokeh mode
- Pro mode
- Bokeh mode
- Pro mode
Selfie camera
Megapixels 13 megapixels 8 megapixels
Image resolution 4224 x 3136 3264 x 2448
Aperture f/2.0 f/2.0
Focal length 28.21 mm 27 mm
Pixel size 1.12 microns -
Sensor type - CMOS
Sensor size 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 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
- 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 GPS, GLONASS, Beidou, Galileo
NFC* No Yes
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* 12 7
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
81.3 dB
Redmi 9 +3%
83.7 dB

Other

Category Mid-range Budget
Announced August 2019 June 2020
Release date September 2019 July 2020
SAR (head) 0.191 W/kg 0.71 W/kg
SAR (body) 1.034 W/kg 1.06 W/kg
Sensors - Proximity sensor
- Gyroscope
- Accelerometer
- Ambient light sensor
- Compass
- Fingerprint
- Proximity sensor
- Gyroscope
- Accelerometer
- Ambient light sensor
- Compass
- Fingerprint
Bundled charger - Yes, 10 W
*Disclaimer! NFC, GSM network support, and some other specs can be different depending on the country.

Conclusion

If the gaming, software, and battery life are more important to you, then choose the Xiaomi Redmi 9. But if the camera is more of a priority – go for the Xiaomi Redmi Note 8.

Cast your vote

So, which phone would you choose?
814 (47.2%)
912 (52.8%)
Total votes: 1726

User opinions

You can share your opinion or ask a question in the comments below
Promotion