Xiaomi Redmi 8 vs. Xiaomi Redmi 9

Phone Comparison, Reviews and Tests

In depth comparison and review of Xiaomi Redmi 8 and Xiaomi Redmi 9. Compare sizes, cameras, batteries, memory, and other important specifications and features to easily choose the right phone for you. Our goal is to help you uncover differences between the products and find the phone that will best fit your needs.

Phone Specifications Comparison

Xiaomi Redmi 8 vs. Xiaomi Redmi 9 Comparison Chart
DESIGN AND DIMENSIONS Xiaomi Redmi 8 Xiaomi Redmi 9
Product Type Smartphone Smartphone
Form Factor Touch Touch
Height 156.5 mm 163.32 mm Xiaomi Redmi 9 has greater height than Xiaomi Redmi 8.
Width 75.4 mm 77.01 mm Xiaomi Redmi 9 has greater width than Xiaomi Redmi 8.
Depth 9.4 mm 9.1 mm Xiaomi Redmi 9 is narrower than Xiaomi Redmi 8.
Weight - 198 g
Body Colour Sapphire blue Carbon grey
Protection Splashproof -
Waterproof (Water-resistant) - -
SAR Value 1.48 W/kg (body), 0.231 W/kg (head), 2.23 W/kg (limb) 1.065 W/kg (body), 0.789 W/kg (head), 2.309 W/kg (limb)
Integrated Components FM radio Ultra-linear speaker
Connector Type USB Type-C - 24 pin USB-C
Headset jack - mini-phone 3.5mm
USB Type-C - 24 pin USB-C
Headset jack - mini-phone 3.5mm
SIM Card Type (Size) Nano SIM Nano SIM
SIM Card Qty Dual-SIM Dual-SIM
DISPLAY Xiaomi Redmi 8 Xiaomi Redmi 9
Screen Size (Display Size) 6.22" 6.53" Xiaomi Redmi 9 has larger screen size than Xiaomi Redmi 8.
Screen Resolution (Display Resolution) 1520 x 720 pixels 2340 x 1080 pixels Xiaomi Redmi 9 has better screen resolution than Xiaomi Redmi 8.
Display Format HD+ Full HD+
Pixel Density 270 ppi 394 ppi Xiaomi Redmi 9 has better pixel density than Xiaomi Redmi 8.
Aspect Ratio 19:9 19.5:9
Max Brightness 400 cd/m² 400 cd/m² Both phones have the same display brightness
Contrast Ratio 1500:1 1500:1 Both phones have the same display contrast ratio.
Display Enhancement Technology Sunlight mode Sunlight mode
Display Features Reading mode, Colour temperature adjustment, night mode, Dot Drop display Colour temperature adjustment, Dot Drop display, Reading mode 2.0
Display Protection (Screen Protector) Corning Gorilla Glass 5 (scratch resistant glass) Corning Gorilla Glass 3 (scratch resistant glass)
PROCESSOR Xiaomi Redmi 8 Xiaomi Redmi 9
Processor Type (CPU) Qualcomm Snapdragon 439 MediaTek Helio G80
Clock Speed 2 GHz 2 GHz Both phones have the same clock speed.
Processor Core Qty 8-core 8-core Both phones have the same number of phone cores.
64-bit Architecture - Yes Xiaomi Redmi 9 has 64-bit architecture.
Graphics System (GPU) Qualcomm ADRENO 505 Mali-G52 MC2
MEMORY Xiaomi Redmi 8 Xiaomi Redmi 9
RAM LPDDR3 SDRAM - 3 GB LPDDR4X SDRAM - 4 GB Xiaomi Redmi 9 has more RAM than Xiaomi Redmi 8.
Internal Memory Size (Storage Capacity) 32 GB 64 GB Xiaomi Redmi 9 has more internal memory than Xiaomi Redmi 8.
Supported Flash Memory Cards (Expandable Memory) microSDHC, microSDXC microSD
CAMERA Xiaomi Redmi 8 Xiaomi Redmi 9
MAIN CAMERA
Number of Main Cameras 2 4
Sensor Resolution 12 Megapixel 13 Megapixel Xiaomi Redmi 9 has better camera resolution than Xiaomi Redmi 8.
Lens Type - Wide-angle lens
Lens Aperture - F/2.2
Field of View (FoV) - 75.2 degree(s)
Focus Adjustment Automatic Automatic
Special Effects HDR HDR, Kaleidoscope
Camera Modes AI portrait mode, Landscapes, Night scenes, AI Beautify 4.0 Portrait mode
Face Recognition (Face ID) Face recognition - Xiaomi Redmi 8 has face detection.
Light Source LED flash Flash
Video Resolutions 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps, 1280 x 720 (720p) at 60 fps 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps
Camera Features (Functions) Phase Detect Auto-Focus (PDAF), AI Dual camera, AI scene detection -
SECOND CAMERA
Sensor Resolution (2nd Camera) 2 Megapixel 8 Megapixel Xiaomi Redmi 9 has better second camera resolution than Xiaomi Redmi 8.
Lens Type (2nd Camera) - Ultra wide-angle lens
Lens Aperture (2nd Camera) - F/2.2
Field of View (2nd Camera) - 118 degree(s)
THIRD CAMERA
Sensor Resolution (3rd Camera) - 5 Megapixel
Lens Aperture (3rd Camera) - F/2.4
Camera Functions (3rd Camera) - Macro camera
FOURTH CAMERA
Sensor Resolution (4th Camera) - 2 Megapixel
Camera Functions (4th Camera) - Depth camera
FRONT CAMERA
Number of Front Cameras 1 1
Sensor Resolution (Front) 8 Megapixel 8 Megapixel Both phones have the same front camera resolution.
Lens Aperture (Front) F/2.0 F/2.0 Both phones have the same front camera lens aperture.
Field of View (Front) - 77.8 degree(s)
Pixel Size (Front) 1.12 μm -
Focus Adjustment - Focus free
Special Effects (Front) HDR HDR
Camera Modes (Front) AI portrait mode, AI Beautify 4.0 Portrait mode
Face Recognition (Face ID) Face recognition - Xiaomi Redmi 8 has face detection.
Light Source (Front) Display flash Display flash
Camera Features (Front) Self-timer Self-timer, Palm shutter
BATTERY AND CHARGING Xiaomi Redmi 8 Xiaomi Redmi 9
Battery Capacity (Battery Size) 5000 mAh 5020 mAh Xiaomi Redmi 9 has larger battery capacity than Xiaomi Redmi 8.
Fast Charging Technology Qualcomm Quick Charge 3.0 - Xiaomi Redmi 8 has fast charging technology.
Recharge Time (Charging Time) 2.2 hour(s) -
Standby Time 625 hours -
Talk Time 1680 minutes 1860 minutes Xiaomi Redmi 9 has longer battery life when making calls than Xiaomi Redmi 8.
Run Time Details Standby: up to 625 hrs
Playback (audio): up to 180.5 hrs
Talk: up to 1680 min
Playback (video): up to 17 hrs
Navigation: up to 16.5 hrs
Talk: up to 1860 min
Continuous navigation: up to 19 hrs
Playback (video): up to 19 hrs
Playback (Music): up to 185 hrs
CELLULAR Xiaomi Redmi 8 Xiaomi Redmi 9
Technology WCDMA (UMTS) / GSM WCDMA (UMTS) / GSM
Mobile Broadband Generation 4G 4G Both phones have the same mobile network generation.
Navigation GPS, A-GPS, GLONASS, BeiDou GPS, A-GPS, GLONASS, BeiDou
COMMUNICATIONS Xiaomi Redmi 8 Xiaomi Redmi 9
Data Transmission GPRS, EDGE, HSDPA, HSUPA, HSPA+, VoLTE, FDD-LTE, TDD-LTE GPRS, EDGE, HSDPA, HSUPA, HSPA+, VoLTE, FDD-LTE, TDD-LTE
2G Band 850 GSM, 900 GSM, 1900 GSM, 2100 GSM -
3G UMTS Band Band 1, Band 2, Band 4, Band 5, Band 8 Band 1, Band 2, Band 4, Band 5, Band 8
3G UMTS Frequency 2100, 1900, 1700, 850, 900 2100, 1900, 1700, 850, 900
4G LTE Band Band 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 20, Band 38, Band 40 Band 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 20, Band 28, Band 38, Band 40, Band 41
4G LTE Frequency FDD 2100, FDD 1900 PCS, FDD 1800+, FDD 1700 - 2110 AWS, FDD 850, FDD 2600, FDD 900, FDD 800 DD, TDD 2600, TDD 2300 FDD 2100, FDD 1900 PCS, FDD 1800+, FDD 1700 - 2110 AWS, FDD 850, FDD 2600, FDD 900, FDD 800 DD, FDD 700 APT, TDD 2600, TDD 2300, TDD 2500
Wireless Interface IEEE 802.11b/g/n IEEE 802.11b/g/n
Bluetooth Bluetooth 4.2 Bluetooth 5.0
Messaging Services SMS, MMS SMS, MMS
MEDIA Xiaomi Redmi 8 Xiaomi Redmi 9
Supported Digital Audio Standards AAC, PCM, MP3, FLAC, AAC +, APE (Monkey's Audio), AMR-WB, AMR-NB AAC, PCM, MP3, FLAC, AAC +, eAAC+, APE (Monkey's Audio), AMR-WB, AMR-NB
Supported Digital Video Standards MKV, MPEG-4, MPEG4-ASP, MPEG-4 SP, H.264 BP, H.264 MP, H.264 HP MKV, H.264, ASP, MP4
Sound Enhancements Large speaker box -
FEATURES Xiaomi Redmi 8 Xiaomi Redmi 9
Phone Functions Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert
Sensors Accelerometer, ambient light sensor, digital compass, distance sensor Accelerometer, ambient light sensor, digital compass, distance sensor, infrared (IR) sensor
Security Devices Face recognition, fingerprint reader Face recognition, fingerprint reader
Additional Phone Features Infrared remote control, notification LED, AI face unlock Fast Charging, AI face unlock
OTHERS Xiaomi Redmi 8 Xiaomi Redmi 9
Included Accessories SIM card removal tool, USB-C cable, TPU case, 10W charger SIM card removal tool, USB-C cable, TPU case, 10W charger
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