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Mid-range · 2022

Xiaomi Redmi K40S

Our Take CPU benches near recent mid-range phones like the Google Pixel 7a

A solid mid-ranger with 67W fast charging and an AMOLED screen.

Best for Streaming · reading · social
Strength 67W fast charging, AMOLED screen
6.67″ AMOLED · 120Hz
Snapdragon 870 5G 6 / 128 GB
4500 mAh 67W charging
48 MP 3 rear · 20 MP selfie
5G NFC
Compare

Full specifications

What stands out

Hi-Res audio, Dolby Atmos for higher-quality listening

Pro camera extras: RAW, Night mode, manual focus

960 fps slow motion for action clips

Display

6.67″ · AMOLED · 1080 × 2400 · 120 Hz · HDR
OLED + smooth

A clean OLED panel — colours pop and sunlight visibility is solid.

Screen size
6.67"
Panel type
AMOLED
OLED
Resolution
1080 × 2400 px
Refresh rate
120 Hz
Smooth
Brightness
1300 nits
HDR
Supported
Protection
Corning Gorilla Glass 5

Performance

Qualcomm SM8250-AC Snapdragon 870 5G (7 nm) · 8-core 3.2 GHz · Adreno 650
Everyday capable

Daily apps and casual games run smoothly — heavy gaming will drop frames.

Chipset
Qualcomm SM8250-AC Snapdragon 870 5G (7 nm)
Current CPU tier
Mid-range
Launch class
Upper mid-range
AnTuTu
785,648
v10
CPU
8-core, 3.2 GHz
GPU
Adreno 650
Process
7 nm
RAM type
RAM LPDDR5
Storage type
UFS Storage 3.1
CPU layout
1x Cortex A77 3.20 GHz + 3x Cortex A77 2.4 GHz + 4x Cortex A55 1.8 GHz

Camera

48 MP f/1.8 main · OIS · 20 MP selfie · 4K video
OIS + 4K

Stabilised main camera holds up in low light. Front camera is fine for daylight selfies.

Main camera
48 MP f/1.8
OIS
Ultrawide
8 MP
Macro
2 MP
Front camera
20 MP
Main sensor
Sony IMX582 Exmor RS, 1/2.96", 0.6µm
Slow motion
Yes, 960 fps
Camera extras
RAW, Night mode, manual focus
Video
4K @ 30 fps
4K video

Battery

4500 mAh · 67 W wired

Battery is average for the class — fine for daily use.

Capacity
4500 mAh
Wired charging
67 W
Fast
Removable
No

Audio

Stereo · Dolby Atmos · Hi-Res
Stereo speakers
Speakers
Stereo
Stereo
Dolby Atmos
Supported
Hi-Res audio
Supported
Audio features
Hi-Res audio, Dolby Atmos
Microphones
2

Memory

6 GB RAM · 128 GB
RAM
6 GB
Storage
128 GB
Storage type
UFS 3.1
Expandable
No

Connectivity

5G · NFC · Wi-Fi 6
Modern radios
5G
Yes
4G LTE
Yes
NFC
Yes
Contactless
Wi-Fi
Wi-Fi 6
Modern Wi-Fi
Bluetooth
5.2
GPS systems
A-GPS, GLONASS, Beidou, QZSS, Galileo, GPS (L1+L5), GLONASS (L1), BeiDou (B1), Galileo (E1+E5a), BeiDou (B2), NavIC System, QZSS (L1 + L5)
USB
USB-C
USB OTG
Supported
3.5mm jack
No
IR blaster
No
SIM
1× Nano-SIM

Build & Design

195 g · 7.7 mm
Height
163.2 mm
Width
76.0 mm
Thickness
7.7 mm
Weight
195 g

Sensors

Fingerprint (side-mounted) · accelerometer · gyro · proximity
Sensors
Fingerprint (side-mounted), accelerometer, gyro, proximity, compass

Specifications sourced from GSMArena

How it stacks up against the rest.

Quick reads against a few phones in the same price tier. Tap any one for the deep comparison.

vs

Apple iPhone 14

Trades blows 2 wins 2 losses
Smoother display
120 Hz vs 60 Hz refresh · 6.67″ vs 6.1″ screen · Tradeoff: 1080 × 2400 vs 1170 × 2532 resolution
37% larger battery capacity
67 W vs 15 W charging · 4,500 mAh vs 3,279 mAh battery
Lower benchmark score
786k vs 1.4M AnTuTu · Mid-range vs High-end tier
Less protected
None vs IP68 protection · 195 g vs 172 g
Full comparison
vs

Samsung Galaxy S22 5G

Loses on most 1 win 4 losses
22% larger battery capacity
67 W vs 25 W charging · 4,500 mAh vs 3,700 mAh battery
Weaker display tech
AMOLED vs Dynamic AMOLED panel · Tradeoff: 6.67″ vs 6.1″ screen
Lower benchmark score
786k vs 1.0M AnTuTu · Mid-range vs Upper mid-range tier
Lower video ceiling
4K @ 30 fps vs 8K @ 24 fps video
Less protected
None vs IP68 protection · 195 g vs 167 g
Full comparison

Where to buy

We don't have any listings for this phone yet. Try searching on Konga or Jiji.

Search on Konga Search on Jiji

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