Xiaomi Redmi K40

Xiaomi Redmi K40

Brand: Xiaomi

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Last searched: 2026-05-14

Key Features

6.67 inches

Display

48 MP

Camera

6GB

RAM

4520

Battery

Full Specifications

Overview

Brand
Xiaomi
Model
Xiaomi Redmi K40
Released
2021, February 25
Status
Available. Released 2021, March 04
Dimensions
163.7 x 76.4 x 7.8 mm (6.44 x 3.01 x 0.31 in)
Weight
196 g (6.91 oz)
OS
Android 11, MIUI 12

Body

SIM
Nano-SIM + Nano-SIM
Weight
196 g (6.91 oz)
Dimensions
163.7 x 76.4 x 7.8 mm (6.44 x 3.01 x 0.31 in)

Misc

Price
About 280 EUR
Colors
Black, White, Aurora
Models
M2012K11AC

Comms

NFC
Yes
USB
USB Type-C 2.0, OTG
WLAN
Wi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct
Radio
No
Bluetooth
5.1, A2DP, LE
Positioning
GPS (L1+L5), GLONASS (G1), BDS (B1I+B2a), GALILEO (E1+E5a), QZSS (L1+L5), NavIC
Infrared port
Yes

Sound

3.5mm jack
No
Loudspeaker
Yes, with stereo speakers

Launch

Status
Available. Released 2021, March 04
Announced
2021, February 25

Memory

Internal
128GB 6GB RAM, 128GB 8GB RAM, 256GB 8GB RAM, 256GB 12GB RAM
Card slot
No

Battery

Type
Li-Po 4520 mAh
Charging
33W wired, PD3.0, QC3, 100% in 52 min

Display

Size
6.67 inches, 107.4 cm, 2, (~85.9% screen-to-body ratio)
Type
Super AMOLED, 120Hz, HDR10+, 1300 nits (peak)
Protection
Corning Gorilla Glass 5
Resolution
1080 x 2400 pixels, 20:9 ratio (~395 ppi density)

Network

Speed
HSPA, LTE, 5G
2G bands
GSM 850 / 900 / 1800 / 1900
3G bands
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands
1, 2, 3, 4, 5, 7, 8, 18, 19, 26, 28, 34, 38, 39, 40, 41, 42
5G bands
1, 3, 28, 41, 77, 78 SA/NSA/Sub6
Technology
GSM / CDMA / HSPA / CDMA2000 / LTE / 5G

Features

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

Platform

OS
Android 11, MIUI 12
CPU
Octa-core (1x3.2 GHz Kryo 585 & 3x2.42 GHz Kryo 585 & 4x1.80 GHz Kryo 585)
GPU
Adreno 650
Chipset
Qualcomm SM8250-AC Snapdragon 870 5G (7 nm)

Main Camera

Video
4K@30fps, 1080p@30/60/120/240/960fps, gyro-EIS
Triple
48 MP, f/1.8, 26mm (wide), 1/2.0", 0.8µm, PDAF, 8 MP, f/2.2, 119˚ (ultrawide), 5 MP, f/2.4, 50mm (macro), 1/5.0", 1.12µm
Features
Color spectrum sensor, LED flash, HDR, panorama

Selfie camera

Video
1080p@30fps, 720p@120fps
Single
20 MP, f/2.5, (wide), 1/3.4", 0.8µm
Features
HDR

About Xiaomi Redmi K40

Xiaomi Redmi K40 is another flagship from Xiaomi's popular line of first class Android phones, released in the 2021.

Xiaomi Redmi K40 has a wide variety of great specifications such as 128GB 6GB RAM, 128GB 8GB RAM, 256GB 8GB RAM, 256GB 12GB RAM with Qualcomm SM8250-AC Snapdragon 870 5G (7 nm) , as well as ultrasonic fingerprint sensor. The thing that makes this decent smartphone special is its sleek design and an amazing all-screen design with no notches at all.

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