XiaomiSmartphone

Xiaomi Redmi K40

Name: Xiaomi Redmi K40
Brand: Xiaomi

Xiaomi Redmi K40 is a smartphone released in March 2021. Key specs: screen size 6.7″, refresh rate 120 Hz, chipset Qualcomm SM8250-AC Snapdragon 870 5G, RAM 12 GB.

7.8Score

Display7.9

Camera6.7

Battery4.2

Features8.7

price range$260–330Reference price converted from EUR

Full specifications

Released: March 2021
Type: Smartphone
Brand: Xiaomi
Popularity: #578 of 4,418
Series: Xiaomi Redmi K · 6 generations
Model numbers: M2012K11AC

6.7″Screen size

120 HzRefresh rate

Snapdragon 870Chipset

12 GBRAM

48 MPMain camera

4,520 mAhBattery capacity

33 WWired charging

196 gWeight

Spec guide

How it ranks among smartphones of 2021

Spec guide

Screen size · 6.7″Top 25% Refresh rate · 120 HzTop 16% RAM · 12 GBTop 12% Main camera · 48 MPBottom 49% Battery capacity · 4,520 mAhBottom 45% Wired charging · 33 WTop 35% Weight · 196 gBottom 41%

Compared with smartphones released in 2021. Bars show the share of models it beats.

compared with other smartphones

Why is Redmi K40 a good choice?

RAM: 12 GBbetter than 80% of smartphones

Refresh rate: 120 Hzbetter than 72% of smartphones

Thickness: 7.8 mmbetter than 87% of smartphones

Selfie camera: 20 MPbetter than 74% of smartphones

Specifications

Full specifications

Design

Weight: 196 g
Thickness: 7.8 mm
Height: 163.7 mm
Width: 76.4 mm
Glass protection: Corning Gorilla Glass 5
Colours: Black, White, Aurora

Display

Screen size: 6.7″
Panel: Super AMOLED
OLED panel: Yes
Resolution (width): 1,080 px
Resolution (height): 2,400 px
Pixel density: 395 ppi
Refresh rate: 120 Hz
Peak brightness: 1,300 nits
Screen-to-body ratio: 85.9%
HDR: Yes

Performance

Chipset: Qualcomm SM8250-AC Snapdragon 870 5G
Chip maker: Qualcomm
Process: 7 nm
CPU cores: 8
CPU frequency: 3.2 GHz
GPU: Adreno 650

Memory

RAM: 12 GB
Storage (max): 256 GB
Storage (base): 128 GB
Storage type: UFS 3.1
Memory card slot: No

Camera

Main camera: 48 MP
Main camera aperture: f/1.8
Main sensor size: 1/2.0"
Rear cameras: 2
Optical stabilisation: No
Ultra-wide camera: Yes
Telephoto camera: No
Max video: 4K
4K video frame rate: 30 fps
Selfie camera: 20 MP
4K selfie video: No

Battery

Battery capacity: 4,520 mAh
Battery type: Li-Po
Wired charging: 33 W
Charged in 30 min: 58%
Wireless charging: No

Connectivity

5G: Yes
eSIM: No
Dual SIM: Yes
Wi-Fi standard: Wi-Fi 6
Bluetooth: 5.1
NFC: Yes
USB: USB Type-C 2.0
USB version: 2
Dual-band GPS: Yes
Satellite navigation: GLONASS, GALILEO, BDS, QZSS, NavIC

Features

Stereo speakers: Yes
3.5 mm headphone jack: No
Fingerprint sensor: Side
Sensors: Fingerprint (side-mounted), accelerometer, gyro, proximity, compass

Software