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Xiaomi Redmi K40
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
- Released
- March 2021
- Type
- Smartphone
- Brand
Xiaomi- Popularity
- #544 of 4,088
- 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
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 42%Wired charging · 33 WTop 34%Weight · 196 gBottom 42%
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 73% of smartphones
Weak points
Battery capacity: 4,520 mAhworse than 76% 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
- Process
- 7 nm
- CPU cores
- 8
- CPU frequency
- 3.2 GHz
Camera
- Main camera
- 48 MP
- Main camera aperture
- f/1.8
- 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
Specs are collected from manufacturers and open databases and normalised to one format; check details with the seller before you buy.
Compare
Compare Redmi K40 with
In collections
Android phones: RAM from 12 GB + OLED panel1,023Android phones: Refresh rate from 120 Hz + OLED panel1,292Android phones: Refresh rate from 120 Hz + NFC1,586Android phones: 5G + NFC1,712Android phones: RAM from 12 GB1,242Android phones: OLED panel1,667Android phones: Refresh rate from 120 Hz1,944Android phones: 5G2,201
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