Xiaomi Redmi 8 vs. Xiaomi Redmi Note 9S

Phone Comparison, Reviews and Tests

In depth comparison and review of Xiaomi Redmi 8 and Xiaomi Redmi Note 9S. 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 Note 9S Comparison Chart
DESIGN AND DIMENSIONS Xiaomi Redmi 8 Xiaomi Redmi Note 9S
Product Type Smartphone Smartphone
Form Factor Touch Touch
Height 156.5 mm 165.75 mm Xiaomi Redmi Note 9S has greater height than Xiaomi Redmi 8.
Width 75.4 mm 76.68 mm Xiaomi Redmi Note 9S has greater width than Xiaomi Redmi 8.
Depth 9.4 mm 8.8 mm Xiaomi Redmi Note 9S is narrower than Xiaomi Redmi 8.
Weight - 209 g
Body Colour Sapphire blue Aurora blue
Body Material - Curved 3D glass, Gorilla glass 5
Protection Splashproof Dustproof, splashproof
Waterproof (Water-resistant) - -
SAR Value 1.48 W/kg (body), 0.231 W/kg (head), 2.23 W/kg (limb) 0.98 W/kg (body), 0.72 W/kg (head), 2.35 W/kg (limb)
Integrated Components FM radio Ultra-linear speakers
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
SIM Card Configuration Details - Nano SIM + nano SIM/microSD
DISPLAY Xiaomi Redmi 8 Xiaomi Redmi Note 9S
Display Type - LCD display
Screen Size (Display Size) 6.22" 6.67" Xiaomi Redmi Note 9S has larger screen size than Xiaomi Redmi 8.
Screen Resolution (Display Resolution) 1520 x 720 pixels 2400 x 1080 pixels Xiaomi Redmi Note 9S has better screen resolution than Xiaomi Redmi 8.
Display Format HD+ Full HD+
Pixel Density 270 ppi -
Aspect Ratio 19:9 -
Max Brightness 400 cd/m² -
Contrast Ratio 1500:1 1500:1 Both phones have the same display contrast ratio.
HDR - Yes Xiaomi Redmi Note 9S has HDR.
Display Enhancement Technology Sunlight mode -
Display Features Reading mode, Colour temperature adjustment, night mode, Dot Drop display Reading mode 2.0, Dot Display
Display Protection (Screen Protector) Corning Gorilla Glass 5 (scratch resistant glass) Corning Gorilla Glass 5 (scratch resistant glass)
PROCESSOR Xiaomi Redmi 8 Xiaomi Redmi Note 9S
Processor Type (CPU) Qualcomm Snapdragon 439 Qualcomm Snapdragon 720G
Clock Speed 2 GHz 2.3 GHz Xiaomi Redmi Note 9S has higher clock speed than Xiaomi Redmi 8.
Processor Core Qty 8-core 8-core Both phones have the same number of phone cores.
64-bit Architecture - Yes Xiaomi Redmi Note 9S has 64-bit architecture.
Graphics System (GPU) Qualcomm ADRENO 505 Qualcomm ADRENO 618
MEMORY Xiaomi Redmi 8 Xiaomi Redmi Note 9S
RAM LPDDR3 SDRAM - 3 GB 4 GB Xiaomi Redmi Note 9S has more RAM than Xiaomi Redmi 8.
Internal Memory Size (Storage Capacity) 32 GB 64 GB Xiaomi Redmi Note 9S has more internal memory than Xiaomi Redmi 8.
Supported Flash Memory Cards (Expandable Memory) microSDHC, microSDXC microSDHC, microSDXC - up to 512 GB
CAMERA Xiaomi Redmi 8 Xiaomi Redmi Note 9S
MAIN CAMERA
Number of Main Cameras 2 4
Sensor Resolution 12 Megapixel 48 Megapixel Xiaomi Redmi Note 9S has better camera resolution than Xiaomi Redmi 8.
Sensor Size - 1/2"
Lens Aperture - F/1.79
Lens Construction - 6-element
Field of View (FoV) - 79 degree(s)
Pixel Size - 0.8 μm
Focus Adjustment Automatic Automatic
Special Effects HDR HDR, Kaleidoscope
Camera Modes AI portrait mode, Landscapes, Night scenes, AI Beautify 4.0 Burst mode, Panorama, night mode, Smart ultra-wide angle mode, Photo timer, Custom watermark, Documents, Beautify, Levelling, Cinematic portraits
Face Recognition (Face ID) Face recognition Face recognition Both phones have face detection.
Light Source LED flash Dual LED flash
Still Image Resolutions - 8000 x 6000
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, 1920 x 1080 (1080p) at 60 fps, 1280 x 720 (720p) at 30 fps, Slo-mo video 1920 x 1080 (1080p) at 120 fps, Slo-mo video 1280 x 720 (720p) at 240 fps, 3840 x 2160 (4K) at 30 fps, Slo-mo video 1280 x 720 (720p) at 120 fps, Slo-mo video 1280 x 720 (720p) at 960 fps
Camera Features (Functions) Phase Detect Auto-Focus (PDAF), AI Dual camera, AI scene detection 4-in-1 Super Pixel, AI scene detection, Portrait mode with background blurring, Ultra wide-angle edge distortion correction, Steady handheld night photography, full screen frame, AI watermark
SECOND CAMERA
Sensor Resolution (2nd Camera) 2 Megapixel 8 Megapixel Xiaomi Redmi Note 9S 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) - 119 degree(s)
Pixel Size (2nd Camera) - 1.12 μm
THIRD CAMERA
Sensor Resolution (3rd Camera) - 5 Megapixel
Lens Aperture (3rd Camera) - F/2.4
Pixel Size (3rd Camera) - 1.12 μm
Camera Functions (3rd Camera) - Macro camera
Camera Features (3rd Camera) - AF (2cm-10cm)
FOURTH CAMERA
Sensor Resolution (4th Camera) - 2 Megapixel
Lens Aperture (4th Camera) - F/2.4
Pixel Size (4th Camera) - 1.75 μm
Camera Functions (4th Camera) - Depth camera
FRONT CAMERA
Number of Front Cameras 1 1
Sensor Resolution (Front) 8 Megapixel 16 Megapixel Xiaomi Redmi Note 9S has better front camera resolution than Xiaomi Redmi 8.
Lens Aperture (Front) F/2.0 F/2.48 Xiaomi Redmi 8 has better front lens aperture than Xiaomi Redmi 8.
Pixel Size (Front) 1.12 μm 1 μm Xiaomi Redmi 8 has larger front camera pixel size than Xiaomi Redmi Note 9S.
Special Effects (Front) HDR HDR
Camera Modes (Front) AI portrait mode, AI Beautify 4.0 Panoramic selfies, AI portrait mode, AI Beautify, Slo-mo Selfie
Face Recognition (Face ID) Face recognition Face recognition Both phones have face detection.
Light Source (Front) Display flash Display flash
Camera Features (Front) Self-timer AI scene detection, Palm shutter, AI silhouette detection
BATTERY AND CHARGING Xiaomi Redmi 8 Xiaomi Redmi Note 9S
Battery Capacity (Battery Size) 5000 mAh 5020 mAh Xiaomi Redmi Note 9S 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 1980 minutes Xiaomi Redmi Note 9S 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 1980 min
Gaming: up to 13 hrs
Playback (Music): up to 147 hrs
Navigation: up to 16 hrs
Battery Technology - Lithium Ion
CELLULAR Xiaomi Redmi 8 Xiaomi Redmi Note 9S
Technology WCDMA (UMTS) / GSM WCDMA (UMTS) / GSM
Mobile Broadband Generation 4G 4G Both phones have the same mobile network generation.
User Interface - MIUI 10
Payment Technology - Google Pay
Navigation GPS, A-GPS, GLONASS, BeiDou GPS, A-GPS, GLONASS, BeiDou, Galileo
COMMUNICATIONS Xiaomi Redmi 8 Xiaomi Redmi Note 9S
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 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
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
Wireless Interface IEEE 802.11b/g/n IEEE 802.11a/b/g/n/ac
Bluetooth Bluetooth 4.2 Bluetooth 5.0
Messaging Services SMS, MMS SMS, MMS
MEDIA Xiaomi Redmi 8 Xiaomi Redmi Note 9S
Supported Digital Audio Standards AAC, PCM, MP3, FLAC, AAC +, APE (Monkey's Audio), AMR-WB, AMR-NB WAV, AAC, AMR, MP3, FLAC, APE (Monkey's Audio), MP4
Supported Digital Video Standards MKV, MPEG-4, MPEG4-ASP, MPEG-4 SP, H.264 BP, H.264 MP, H.264 HP MKV, XviD, M4V, MP4
Sound Enhancements Large speaker box -
Audio Amplifier - Smart PA
FEATURES Xiaomi Redmi 8 Xiaomi Redmi Note 9S
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, digital compass, gyro sensor, distance sensor, infrared (IR) sensor, In-screen ambient light sensor
Security Devices Face recognition, fingerprint reader Face recognition, fingerprint reader (side)
Security Technology - A.I. face recognition
Additional Phone Features Infrared remote control, notification LED, AI face unlock Infrared remote control, AI face unlock, Qualcomm 5th generation AI Engine, Z-axis linear vibration motor
OTHERS Xiaomi Redmi 8 Xiaomi Redmi Note 9S
Included Accessories SIM card removal tool, USB-C cable, TPU case, 10W charger Protective cover, SIM card removal tool, USB-C cable, 18W charger
Compliant Standards - TUV Rheinland
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