Xiaomi 12S Ultra vs Xiaomi Redmi Note 9S

Network
2G network

GSM 850, 900, 1800, 1900;CDMA 800

GSM 850, 900, 1800, 1900
3G network

HSDPA 800, 850, 900, 1700(AWS), 1900, 2100; CDMA2000 1xEV-DO

HSDPA 850, 900, 1700(AWS), 1900, 2100
4G network

LTE frequency band 1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 26, 34, 38, 39, 40, 41, 42

LTE frequency band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 20(800), 28(700), 38(2600), 40(2300)
5G network

5G band 1, 3, 5, 8, 28, 38, 40, 41, 77, 78, 79 SA/NSA

-
HSDPA speed

42.2 Mbps

42.2 Mbps
HSUPA speed

5.76 Mbps

5.76 Mbps
EV-DO speed

-

3.1 Mbps download, 1.8 Mbps upload
LTE speed

LTE-A

LTE, Cat12, 603 Mbps download, 102 Mbps upload
GPRS

Class 33

Yes
EDGE

Class 33

Yes

Design
Build

Glass front (Gorilla Glass Victus), eco leather back, aluminum frame

Glass front, glass back, plastic frame
SIM

Dual SIM (Nano-SIM, dual stand-by)

Dual SIM (Nano-SIM, dual stand-by)
Height

163.2 mm

165.8 mm
Width

75 mm

76.7 mm
Thickness

9.1 mm

8.8 mm
Weight

225 g

209 g
Splash resistant

-

Yes
Colors

Black, Green

Black, Gray, White

Display
Display type

LTPO2 AMOLED

IPS LCD capacitive touchscreen
Physical size

6.73 inches

6.67 inches
Resolution

1440 x 3200 pixels

1080 x 2400 pixels
Pixel density

522 ppi

395 ppi
Display colors

1073741824

16777216
Protection

Scratch resistant, Corning Gorilla Glass Victus

Scratch resistant, 2.5D curved glass screen, Corning Gorilla Glass 5, Oleophobic coating
Multitouch

-

Yes
Display features

120Hz, Dolby Vision, HDR10+, 1000 nits (HBM), 1500 nits (peak)

450 nits typ. brightness

Hardware
CPU

Octa-core

Octa-core
CPU

Single-core 3.19 GHz Cortex-X2

Dual-core 2.3 GHz Kryo 465 Gold
CPU(second)

Triple-core 2.75 GHz Cortex-A710

Hexa-core 1.8 GHz Kryo 465 Silver
CPU(third)

Quad-core 1.8 GHz Cortex-A510
Chipset

Qualcomm SM8475 Snapdragon 8+ Gen 1

Qualcomm SM7125 Snapdragon 720G
GPU

Adreno 730

Adreno 618
Memory RAM

8, 12 GB

4, 6 GB
Internal storage

256, 512 GB

64, 128 GB
Memory card

No

microSD, microSDHC, microSDXC
Memory card max

-

512 GB
Storage

UFS 3.1

UFS 2.1

Main camera
Camera type

Quad

Quad
Main camera

(wide) , 50 MP, f/1.9 , 23 mm, 1.0" , 1.6 µm

48 MP, f/1.8 , 26 mm, 1/2.0" , 0.8 µm
(periscope telephoto) , 48 MP, f/4.1 , 120 mm, 1/2.0" , 0.8 µm

8 MP, f/2.2 , 13 mm, 1/4.0" , 1.12 µm
128˚ , (ultrawide) , 48 MP, f/2.2 , 13 mm, 1/2.0" , 0.8 µm

5 MP, f/2.4 , 1.12 µm
2 MP, f/2.4
Primary camera resolution

-

8000 x 6000 pixels
Primary camera video

8K@24fps, 4K@30/60fps, 1080p@30/60/120/240fps, 720p@3840fps, gyro-EIS, Dolby Vision HDR 10-bit rec. (4K, 1080p)

2160p@30fps, 1080p@30/60/120fps, 720p@960fps, gyro-EIS
Primary camera optics

Leica lens

-
Primary camera flash

dual-LED flash

LED flash
Camera features

Autofocus, continuous autofocus, continuous shooting, digital zoom, optical zoom, digital image stabilization, optical image stabilization, geotagging, panorama, HDR, touch focus, face detection, face unlock, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode, phase detection autofocus, super night mode 2.0, HDR10 video recording

Autofocus, digital zoom, digital image stabilization, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode, macro mode, phase detection autofocus

Selfie camera
Selfie camera type

Single

-
Selfie camera

(wide) , 32 MP, f/2.4 , 80˚ , 25 mm, 1/3" , 0.7 µm

16 MP, f/2.5 , 1.0 µm
Selfie camera resolution

-

4608 x 3456 pixels
Selfie camera features

Face unlock, HDR, panorama

-
Selfie camera video

1080p@30/60fps

1080p@30fps

Connectivity
WLAN

Wi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11n 5GHz, 802.11ac, 802.11ax

Wi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11n 5Ghz, 802.11ac
WLAN WiFi Hotspot

Yes

Yes
WLAN WiFi Direct

Yes

Yes
Wi-Fi display

-

Yes
WLAN WiFi Dual Band

Yes

Yes
WLAN DLNA

Yes

-
USB

Type-C 2.0

Type-C 1.0 reversible connector
USB On-The-Go

Yes

Yes
Bluetooth

v5.2

v5.0
Bluetooth A2DP

Yes

Yes
bluetooth HID

-

Yes
bluetooth LE

Yes

Yes
Bluetooth EDR

-

Yes
Bluetooth AptX

aptX HD, aptX Adaptive

-
Infrared

Yes

Yes
NFC

Yes

Yes
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

Yes

Yes
GALILEO

Yes

Yes
Beidou

-

Yes
BDS

Yes

-
QZSS

Yes

-
NavIC

Yes

-

Features
Sensors

Accelerometer, barometer, color spectrum, compass, fingerprint, gyroscope, virtual proximity sensing

Accelerometer, compass, fingerprint, gyroscope, light, proximity