Xiaomi Redmi Note 9 vs Samsung Galaxy S23 Ultra Specs Comparison

Compare mobile phone specifications of up to three devices at once. Our specs comparison tool helps you find and compare the perfect phone for your needs.

8.5	7.1
Xiaomi Redmi Note 9	Samsung Galaxy S23 Ultra
Released · May 12, 2020	Released · Feb 17, 2023
6.5-inch · 2340x1080px	6.8-inch · 3088x1440px
Quad camera	Quad camera
3GB · 64GB	8GB · 256GB
5020 mAh	5000 mAh
Check prices	Check prices

Design

Dimensions
6.39 x 3.04 x 0.35 inches 162.3 x 77.2 x 8.9 mm	6.43 x 3.07 x 0.35 inches (~0.42 inches with camera bump) 163.3 x 78 x 8.9 mm (~10.68 mm with camera bump)
Weight
7.02 oz (199.0 g)	8.25 oz (234.0 g)
Materials
Frame: Plastic	Back: Glass (Corning Gorilla Glass Victus 2) Frame: Aluminum
Resistance
Splash	Water, Splash, Dust; IP68
Biometrics
Fingerprint (touch)	2D Face unlock, Ultrasonic in-screen fingerprint
Features
	Stylus
Keys
Right: Volume control, Lock/Unlock key	Right: Volume control, Lock/Unlock key
Colors
Forest green, Polar white, Midnight gray	Phantom Black, Cream, Green, Lavender

Display

Size
6.5-inch	6.8-inch
Resolution
2340x1080px, 19.5:9 ratio, 395 PPI	3088x1440px, 19.3:9 ratio, 501 PPI
Technology
IPS LCD	Dynamic AMOLED
Refresh rate
	120Hz
Screen-to-body
83.52 %	89.87 %
Peak brightness
	1750 cd/m2 (nit)
Features
Scratch-resistant glass (Corning Gorilla Glass 5), Ambient light sensor, Proximity sensor	HDR support, Scratch-resistant glass (Corning Gorilla Glass Victus 2), Ambient light sensor, Proximity sensor

Hardware

System chip
MediaTek Helio G85 (12 nm)	Qualcomm Snapdragon 8 Gen 2 SM8550 (4 nm)
Processor
Octa-core 2000 MHz Arm Cortex-A75 and ArmCortex-A55	Octa-core 1x3.36GHz Kryo Prime 4x2.8GHz Kryo Gold 3x2.0GHz Kryo Silve
GPU
Mali G52 MC2	Adreno 740
RAM
3GB (LPDDR4)	8GB (LPDDR5X)
Internal storage
64GB (eMMC 5.1)	256GB (UFS 4.0)
Storage expansion
microSDXC up to 128 GB	not expandable
OS
Android (10), Xiaomi MI UI	Android (14, 13), One UI

Battery

Capacity
5020 mAh	5000 mAh
Type
Li - Polymer	Li - Ion
Charging
Fast charging, Reverse wired charging	Fast charging, Qi wireless charging, Reverse wireless charging
Charge speed
Wired: 18.0W	Wired: 45.0W Wireless: 15.0W

Battery Life Estimate

Untested

Browsing

Untested

Video

10h 43min

Gaming

7h 34min

Battery Life Estimate

7h 17min

Browsing

18h 57min

Video

8h 54min

Gaming

10h 59min

Camera

Rear
Quad camera	Quad camera
Main camera
48 MP (PDAF) Aperture size: F1.8 Sensor size: 1/2" Pixel size: 0.8 μm	200 MP (OIS, PDAF) Sensor name: Samsung ISOCELL HP2 Aperture size: F1.7 Focal length: 24 mm Sensor size: 1/1.3" Pixel size: 0.6 μm
Second camera
8 MP (Ultra-wide) Aperture size: F2.2 Sensor size: 1/4" Pixel size: 1.2 μm	12 MP (Ultra-wide) Sensor name: Sony IMX564 Aperture size: F2.2 Focal Length: 13 mm Sensor size: 1/2.55" Pixel size: 1.4 μm
Third camera
2 MP (Macro, Autofocus) Aperture size: F2.4 Pixel size: 1.75 μm	10 MP (Telephoto) Sensor name: Sony IMX754 Optical zoom: 10.0x Aperture size: F4.9 Focal Length: 230 mm Sensor size: 1/3.52" Pixel size: 1.12 μm
Fourth camera
2 MP Aperture size: F2.4 Sensor size: 1/5" Pixel size: 1.7 μm	10 MP (Telephoto, OIS) Sensor name: Sony IMX754 Optical zoom: 3.0x Aperture size: F2.4 Focal Length: 69 mm Sensor size: 1/3.52" Pixel size: 1.12 μm
Flash
LED	LED
Video recording
1920x1080 (Full HD) (30 fps), 1280x720 (HD) (120 fps)	7680x4320 (8K UHD) (30 fps), 3840x2160 (4K UHD) (60 fps), 1920x1080 (Full HD) (960 fps) OIS, HDR
Front
13 MP (HDR), Video capture: 1920x1080 (Full HD)	12 MP (PDAF), Video capture: 3840x2160 (4K UHD) (60 fps)

N/A

Overall

N/A

Photo

N/A

Video

147

Overall

150

Photo

144

Video

Connectivity & Features

Bluetooth
5.0	5.3
WLAN
802.11 a,b,g,n,ac,dual-band Wi-Fi Direct, Hotspot	802.11 a,b,g,n,ac,ax(Wi-Fi 6),Wi-Fi 6E Wi-Fi Direct, Hotspot
USB
Type-C, USB 2.0	Type-C, USB 3.2
Hearing aid compatible
	M3/T4
Location
GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning	GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning
Sensors
Accelerometer, Gyroscope, Compass	Accelerometer, Gyroscope, Compass, Barometer
Other
NFC, Infrared	NFC, Ultra Wideband (UWB)

Multimedia

Headphones
3.5mm jack	No 3.5mm jack
Speakers
Earpiece, Loudspeaker	Earpiece, Multiple speakers
Screen mirroring
Wireless screen share
Additional microphone(s)
Noise cancellation

Cellular

5G
	Bands n1, n7, n28, n41, n66, n71, n78, n258, n260, n261, SA, NSA, Sub-6, mmWave
4G (FDD)
Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 20(800 DD), 28(700 APT)	Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 12(700 a), 13(700 c), 14(700 PS), 18(800 Lower), 19(800 Upper), 20(800 DD), 25(1900+), 26(850+), 28(700 APT), 29(700 d), 30(2300 WCS), 66(AWS-3), 71(600)
4G (TDD)
Bands 38(2600), 40(2300), 41(2600+)	Bands 38(2600), 39(1900+), 40(2300), 41(2600+), 46, 48(3600)
3G
Bands 1(2100), 2(1900), 4(1700/2100), 5(850), 8(900)	Bands 1(2100), 2(1900), 4(1700/2100), 5(850), 8(900)
Data Speed
LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s	LTE-A, HSDPA+ (4G) 42.2 Mbit/s
Dual SIM
Yes
SIM type
Nano SIM	Dual Nano SIM + eSIM
VoLTE
Yes

Regulatory Approval

FCC approval
	Date approved: Dec 08, 2023 FCC ID value: A3LSMS918U
Measured SAR
	Head: 1.12 W/kg Body: 0.92 W/kg Simultaneous Transmission: 1.58 W/kg Wireless Router: 1.16 W/kg

Buyers information

MSRP
	$ 1200 / € 1300
In The Box
22.5W Charger, Simple protective cover, USB Type-C cable, SIM eject tool, User guide, Warranty card	USB-C cable, SIM Tray ejector, Paperwork

Availability

Officially announced
Apr 30, 2020	Feb 01, 2023

Alternative variants

with 128GB storage


RAM	4GB
Internal storage	128GB

With 12GB RAM


RAM	12GB

With 12GB RAM and 512GB internal storage


RAM	12GB
Internal storage	512GB
MSRP	$ 1450 / € 1589

With 12GB RAM and 1TB internal storage


RAM	12GB
Internal storage	1024GB
MSRP	$ 1649 / € 1749

International


5G	Bands n1, n2, n3, n5, n7, n8, n12, n20, n25, n28, n38, n40, n41, n66, n75, n77, n78, SA, NSA, Sub-6
4G (FDD)	Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 12(700 a), 13(700 c), 17(700 b), 18(800 Lower), 19(800 Upper), 20(800 DD), 25(1900+), 26(850+), 28(700 APT), 32(1500 L-band), 66(AWS-3)
4G (TDD)	Bands 38(2600), 39(1900+), 40(2300), 41(2600+)

Links

Full specifications
Xiaomi Redmi Note 9 Specs	Samsung Galaxy S23 Ultra Specs
PhoneArena Review
Xiaomi Redmi Note 9 Review	Samsung Galaxy S23 Ultra Review
User Reviews
Xiaomi Redmi Note 9 User Reviews	Samsung Galaxy S23 Ultra User Reviews