Xiaomi Redmi K40S vs Xiaomi Redmi Note 9 Pro 5G

Xiaomi Redmi K40S

Xiaomi Redmi Note 9 Pro 5G

Network
2G network

GSM 850, 900, 1800, 1900; CDMA 800

GSM 850, 900, 1800, 1900; CDMA 800
3G network

HSDPA 850, 900, 1700(AWS), 1900, 2100; CDMA2000 1x

HSDPA 850, 900, 1900, 2100; CDMA2000 1xEV-DO
4G network

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

LTE frequency band 1, 3, 5, 7, 8, 34, 38, 39, 40, 41
5G network

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

5G band 1, 3, 41, 78, 79 SA/NSA/Sub6
HSDPA speed

42.2 Mbps

42.2 Mbps
HSUPA speed

5.76 Mbps

5.76 Mbps
EV-DO speed

-

EV-DO Rev.A 3.1 Mbps download, 1.8 Mbps upload
LTE speed

LTE-A

LTE-A
GPRS

Yes

Yes
EDGE

Yes

Yes

Design
Build

Glass front (Gorilla Glass 5), plastic back

Glass front (Gorilla Glass 5), glass back (Gorilla Glass 5)
SIM

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

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

163.2 mm

165.4 mm
Width

76 mm

76.8 mm
Thickness

7.7 mm

9 mm
Weight

195 g

215 g
Splash resistant

Yes

IP53
Colors

Black, Blue, Gray, Green

Blue, Gray, Red/Mint

Display
Display type

AMOLED

IPS LCD
Physical size

6.67 inches

6.67 inches
Resolution

1080 x 2400 pixels

1080 x 2400 pixels
Pixel density

395 ppi

395 ppi
Display colors

16777216

16777216
Protection

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

Scratch resistant, Corning Gorilla Glass 5
Display features

120Hz, HDR10+, 1300 nits (peak)

HDR10, 120Hz, 450 nits (typ)

Hardware
CPU

Octa-core

Octa-core
CPU

Single-core 3.2 GHz Kryo 585

Dual-core 2.2 GHz Kryo 570
CPU(second)

Triple-core 2.42 GHz Kryo 585

Hexa-core 1.8 GHz Kryo 570
CPU(third)

Quad-core 1.80 GHz Kryo 585
Chipset

Qualcomm SM8250-AC Snapdragon 870 5G

Qualcomm SM7225 Snapdragon 750G 5G
GPU

Adreno 650

Adreno 619
Memory RAM

6, 8, 12 GB

6, 8 GB
Internal storage

128, 256 GB

128, 256 GB
Memory card

No

microSD, microSDHC, microSDXC
Memory card max

-

512 GB
Storage

UFS 3.1

UFS 2.2

Main camera
Camera type

Triple

Quad
Main camera

(wide) , 48 MP, f/1.8 , 1/2" , 0.8 µm

(wide) , 108 MP, f/1.8 , 1/1.52" , 0.7 µm, 26 mm
(ultrawide) , 8 MP, 119˚

(ultrawide) , 8 MP, 118˚ , f/2.2 , 1/4.0" , 1.12 µm
(macro) , 2 MP, f/2.4

(macro) , 2 MP, f/2.4
(depth) , 2 MP, f/2.4
Primary camera resolution

8000 x 6000 pixels

-
Primary camera video

4K@30fps, 1080p@30/60/120fps, 720p@960fps; gyro-EIS

4K@30fps, 1080p@30/60fps, gyro-EIS
Primary camera flash

dual-LED dual-tone flash

dual-LED dual-tone flash
Camera features

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

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, super night view 2.0, movie frame, video tag, cinematic filters, photo movie

Selfie camera
Selfie camera type

Single

Single
Selfie camera

(wide) , 20 MP

16 MP, f/2.0
Selfie camera resolution

-

4608 x 3456 pixels
Selfie camera features

Face unlock, HDR

Digital image stabilization, face detection, face unlock, HDR
Selfie camera video

1080p@30/120fps

1080p@30fps, gyro-EIS

Connectivity
WLAN

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

Wi-Fi 802.11b, 802.11g, 802.11n
WLAN WiFi Hotspot

Yes

Yes
WLAN WiFi Direct

Yes

Yes
WLAN WiFi Dual Band

Yes

Yes
USB

Type-C 2.0

Type-C 2.0
USB On-The-Go

Yes

-
Bluetooth

v5.2

v5.1
Bluetooth A2DP

Yes

Yes
bluetooth LE

Yes

Yes
Infrared

-

Yes
NFC

Yes

Yes
GPS

Yes, with A-GPS

Yes, with dual-band A-GPS
GLONASS

Yes

Yes
GALILEO

Yes

Yes
BDS

Yes

Yes
QZSS

Yes

Yes
NavIC

Yes

-
GNSS

-

Yes

Features
Sensors

Accelerometer, color spectrum, compass, fingerprint, gyroscope, proximity

Accelerometer, compass, fingerprint, gyroscope, proximity

Battery
Battery type

Li-Po

Li-Po
Battery capacity

4500 mAh

4820 mAh
Battery removable

Non-removable

Non-removable
Fast battery charging

Quick Charge 3+, 67W (100% in 38 min)

Yes (100% in 58 min)

Xiaomi Redmi K40S comparisons