Redmi Note 9S

Released March 2020

A 6.67-inch Android phone with a Snapdragon 720G processor, a 48 MP main camera and a 5,020 mAh battery.

Screen: 6.67″
Display: LCD, 60 Hz
Chip: Qualcomm Snapdragon 720G
Memory: 4 GB – 6 GB
Storage: 64 GB – 128 GB
Main camera: 48 MP
Zoom: –
Battery: 5,020 mAh
Weight: 209 g

5,000 mAh+

What reviewers say

Both reviews praise the battery life, everyday performance and value, while noting the large, heavy body and lack of NFC. They find the cameras useful for the price but limited in fine detail and difficult lighting. Notebookcheck criticises the display's contrast and preinstalled apps, whereas Tech Advisor is more positive about the screen and MIUI.

From techadvisor.com and notebookcheck.net

Specifications

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Display

Screen size: 6.67″
Resolution: 2400 × 1080
Sharpness: 395 pixels per inch
Panel: LCD
Refresh rate: 60 Hz
Display type: IPS LCD and 60 Hz refresh identified by Tech Advisor; DotDisplay, 1,500:1 typical contrast and 84% NTSC typical
Screen protection: Corning Gorilla Glass 5 front and back
Display features: TÜV Rheinland low blue light certification and Reading mode 2.0

Performance

Chip: Qualcomm Snapdragon 720G
Memory: 4 GB – 6 GB
Storage: 64 GB, 128 GB
CPU: Octa-core Snapdragon 720G at up to 2.3 GHz; 8 nm process and Qualcomm fifth-generation AI engine
GPU: Adreno 618
Storage type: UK configurations of 4/64 GB and 6/128 GB; dedicated microSD expansion up to 512 GB

Cameras

Main camera: 48 MP
Ultra wide camera: 8 MP
Telephoto camera: None
Optical zoom: None
Front camera: 16 MP
Main camera: 48 MP, f/1.79, 1/2-inch sensor, 79° field of view, six-element lens and autofocus; 0.8 µm pixels or 4-in-1 binning to 1.6 µm; up to 8,000 × 6,000 photos
Ultra wide camera: 8 MP, f/2.2 and 1.12 µm pixels; 119° field of view before distortion correction and 108° after correction
Front camera: 16 MP, f/2.48 and 1.0 µm pixels; panorama selfie, palm shutter, HDR, face recognition, AI beauty, portrait and scene detection
Video recording: 4K at 30 fps, Full HD at 30/60 fps and HD at 30 fps; Full HD slow motion at 120 fps or HD at 120/240/960 fps; ultrawide and macro recording, short video and cinematic 4K
Front video: 120 fps slow-motion selfies
Camera features: Additional 5 MP macro with f/2.4, 1.12 µm pixels and autofocus at 2–10 cm; 2 MP depth sensor with f/2.4 and 1.75 µm pixels; night, document, cinematic portrait, 48 MP, Pro, panorama, burst, HDR, timer, levelling, watermark and kaleidoscope modes; 27 rear AI scene tags

Battery and charging

Battery: 5,020 mAh
Wired charging: Up to 18 W
Wireless charging: None
Battery life detail: 5,020 mAh typical non-removable lithium-ion polymer battery; maker laboratory claims of 147 hours music, 33 hours calling, 16 hours navigation or 13 hours gaming
Wired charging: Phone supports 18 W wired charging; included adaptor is rated at 22.5 W

Design

Type: Standard
Weight: 209 g
Thickness: 8.8 mm
Height × width: 165.75 × 76.68 mm
Materials: 3D curved glass back; plastic frame, as described by Tech Advisor
Colours: Interstellar Grey, Aurora Blue and Glacier White
Water resistance detail: Splash-proof nano-coating; no published IP rating
Biometrics: Side fingerprint reader combined with the power button; AI face unlock
Sensors: Z-axis linear vibration motor, fingerprint, distance, in-screen ambient light, accelerometer, gyroscope, compass and IR blaster
Speakers: 1216 ultra-linear speaker with 0.5 mm maximum amplitude and 10 V Smart PA; 3.5 mm headphone socket

Software

Operating system: Android
Software at launch: Android 10 with MIUI 11, as reported by both reviews
In the box: Phone, power adaptor, protective cover, USB-C cable, SIM tool, user guide and warranty card

Connectivity

Mobile network: Dual SIM VoLTE, subject to local operator support; LTE FDD B1/B2/B3/B4/B5/B7/B8/B20/B28 and TDD B38/B40; WCDMA B1/B2/B4/B5/B8 and GSM B2/B3/B5/B8
SIM: Two nano-SIM slots plus a separate microSD slot
Wi-Fi: Wi-Fi 802.11 a/b/g/n/ac, 2.4/5 GHz and Wi-Fi Direct
Bluetooth: Bluetooth 5.0
NFC: No NFC, as confirmed by both reviews
USB: USB-C; USB 2.0 controller identified by Notebookcheck
Positioning: GPS, A-GPS, GLONASS and BeiDou

Storage options

Storage	Memory
64 GB	4 GB
128 GB	6 GB

Pros and cons

Pros

Main, ultrawide and autofocus macro cameras
Dedicated microSD slot alongside two SIMs
Headphone socket and IR blaster

Cons

No NFC or wireless charging
No optical telephoto camera
209 g weight

Closest rivals

Model	Screen	Display	Chip	Memory	Storage	Main camera	Zoom	Battery	Weight	Released
SamsungGalaxy A71	6.7″	OLED	Snapdragon 730	6 GB	128 GB	64 MP	–	4,500 mAh	179 g	Jan 2020
SamsungGalaxy A21s	6.5″	LCD	Exynos 850	3 GB – 6 GB	32 GB – 64 GB	48 MP	–	5,000 mAh	192 g	May 2020
OnePlusNord N10 5G	6.49″	LCD, 90 Hz	Qualcomm Snapdragon 690 5G	6 GB	128 GB	64 MP	–	4,300 mAh	190 g	Nov 2020

Sources

Photo: i01.appmifile.com

Redmi Note 9S, Interstellar Grey front and rear: i01.appmifile.com/webfile/globalimg/products/pc/redmi-note-9s/overview_10.png
Redmi Note 9S, close view of the rear camera housing: i01.appmifile.com/webfile/globalimg/products/pc/redmi-note-9s/animate4.png

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