Xiaomi Mi 11 Ultra vs Xiaomi Redmi K40S

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 1xEV-DO

HSDPA 850, 900, 1700(AWS), 1900, 2100; CDMA2000 1x
4G network

LTE frequency band 1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 28, 32, 38, 40, 41, 42, 66 - global; 1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28, 34, 38, 39, 40, 41, 42 - China

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

5G band 1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 77, 78, 79 SA/NSA - global; 1, 3, 28, 41, 77, 78, 79 SA/NSA - China

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

42.2 Mbps

42.2 Mbps
HSUPA speed

5.76 Mbps

5.76 Mbps
LTE speed

LTE-A

LTE-A
GPRS

Yes

Yes
EDGE

Yes

Yes

Design
Build

Glass front (Gorilla Glass Victus), ceramic back, aluminum frame

Glass front (Gorilla Glass 5), plastic back
SIM

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

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

164.3 mm

163.2 mm
Width

74.6 mm

76 mm
Thickness

8.4 mm

7.7 mm
Weight

234 g

195 g
Waterproof

IP68

-
Splash resistant

-

Yes
Dust proof

IP68

-
Colors

Black, White

Black, Blue, Gray, Green

Display
Display type

AMOLED

AMOLED
Physical size

6.81 inches

6.67 inches
Resolution

1440 x 3200 pixels

1080 x 2400 pixels
Pixel density

515 ppi

395 ppi
Display colors

1073741824

16777216
Protection

Scratch resistant, 3D curved glass screen, Corning Gorilla Glass Victus

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

120Hz, HDR10+, Dolby Vision, 900 nits, 1700 nits (peak)

120Hz, HDR10+, 1300 nits (peak)

Hardware
CPU

Octa-core

Octa-core
CPU

Single-core 2.84 GHz Kryo 680

Single-core 3.2 GHz Kryo 585
CPU(second)

Triple-core 2.42 GHz Kryo 680

Triple-core 2.42 GHz Kryo 585
CPU(third)

Quad-core 1.80 GHz Kryo 680

Quad-core 1.80 GHz Kryo 585
Chipset

Qualcomm SM8350 Snapdragon 888 5G

Qualcomm SM8250-AC Snapdragon 870 5G
GPU

Adreno 660

Adreno 650
Memory RAM

8, 12 GB

6, 8, 12 GB
Internal storage

256, 512 GB

128, 256 GB
Memory card

No

No
Storage

UFS 3.1

UFS 3.1

Main camera
Camera type

Triple

Triple
Main camera

(wide) , 50 MP, f/2.0 , 24 mm, 1/1.12" , 1.4 µm

(wide) , 48 MP, f/1.8 , 1/2" , 0.8 µm
(periscope telephoto) , 48 MP, f/4.1 , 120 mm, 1/2.0" , 0.8 µm, 5x optical zoom

(ultrawide) , 8 MP, 119˚
128˚ , (ultrawide) , 48 MP, f/2.2 , 12 mm, 1/2.0" , 0.8 µm

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

8160 x 6144 pixels

8000 x 6000 pixels
Primary camera video

8K@24fps, 4K@30/60fps, 1080p@30/60fps, gyro-EIS, HDR10+ rec.

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

dual-LED flash

dual-LED dual-tone flash
Camera features

Autofocus, continuous autofocus, 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, laser autofocus, AI 2.0, night mode 2.0, stagger HDR

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
DxOMark photo

148

-
DxOMark zoom

100

-
DxOMark video

117

-
DxOMark camera score

143

-

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, 802.11ax
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

Yes
Bluetooth

v5.2

v5.2
Bluetooth A2DP

Yes

Yes
bluetooth LE

Yes

Yes
Bluetooth AptX

aptX HD

-
Infrared

Yes

-
NFC

Yes

Yes
GPS

Yes, with tri-band A-GPS

Yes, with A-GPS
GLONASS

Yes

Yes
GALILEO

Yes

Yes
BDS

Yes

Yes
QZSS

Yes

Yes
NavIC

Yes

Yes

Features
Sensors

Accelerometer, compass, fingerprint, gyroscope, proximity

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

Battery
Battery type

Li-Po

Li-Po
Battery capacity

5000 mAh

4500 mAh
Battery removable

Non-removable

Non-removable
Fast battery charging

Quick Charge 4+ (100% in 36 min)

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

Yes

-
Fast wireless charging

Yes (100% in 39 min)

-