Xiaomi Redmi K40

AvailableAnnounced February 2021Released March 2021

≈ ৳38,6002022 listing price in taka · BD price not confirmedSee prices

Xiaomi Redmi K40, official product image

Display: 6.67″Super AMOLED · 120 Hz
Main camera: 48MP3 rear cameras · 4K video
Battery: 4,520mAh33 W charging
RAM: 12GB128 GB – 256 GB storage

Chipset: Qualcomm SM8250-AC Snapdragon 870 5GChipset · 7 nm
Software: Android 11Software · MIUI 12

Redmi K40 price in Bangladesh

Not confirmed yet. We list a taka price once an official or market price is checked.

International price, 2022 listing: ≈ ৳38,600

€280 converted at the Bangladesh Bank rate of 15 October 2026. A currency conversion, not a Bangladesh shop price.

6 GB RAM + 128 GB
8 GB RAM + 128 GB
8 GB RAM + 256 GB
12 GB RAM + 256 GB

Compare

3 colours

Black
White
Aurora

Redmi K40 full specifications

Xiaomi Redmi K40 is a phone from Xiaomi, announced in February 2021. It has a 6.67-inch Super AMOLED display at 120 Hz, the Qualcomm SM8250-AC Snapdragon 870 5G chipset, a 48 MP main camera and a 4,520 mAh battery with 33 W charging. Memory options: 6/8/12 GB RAM · 128 GB, 256 GB.

Network

Technology	GSM / CDMA / HSPA / CDMA2000 / LTE / 5G
2G bands	GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
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
Speed	HSPA, LTE-A, 5G

Launch

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

Body

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

Display

Type	Super AMOLED, HDR10+
Size	6.67 inches
Resolution	1080 x 2400 pixels
Aspect ratio	20:9 ratio
Pixel density	~395 ppi density
Screen-to-body	~85.9%
Refresh rate	120Hz
Brightness	1300 nits (peak)
Protection	Corning Gorilla Glass 5

Platform

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

Memory

Card slot	No
RAM	6GB, 8GB, 8GB, 12GB
Storage	128GB, 128GB, 256GB, 256GB
Storage type	UFS 3.1

Main camera

Setup	48 MP, f/1.8, 26mm (wide), 1/2", 0.8µm, PDAF 8 MP, f/2.2, 119˚ (ultrawide) 5 MP, f/2.4, 50mm (macro), 1/5.0", 1.12µm
Features	HDR
Video	4K@30fps, 1080p@30/60/120/240/960fps, gyro-EIS

Selfie camera

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

Sound

Loudspeaker	Yes, with stereo speakers
3.5mm jack	No

Connectivity

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

Features

Sensors	fingerprint, accelerometer, gyroscope, proximity, compass

Battery

Type	Li-Po
Capacity	4520 mAh
Charging	Fast charging 33W, 100% in 52 min (advertised) Power Delivery 3.0 Quick Charge 3+

Colors	Black, White, Aurora
Models	M2012K11AC

Sources: a public spec dataset compiled in 2022. These specs have not yet been re-checked against Xiaomi’s own pages. How we source specs and prices

Compare Redmi K40 with

More from Xiaomi

All Xiaomi

Questions about Redmi K40

What is the price of Xiaomi Redmi K40 in Bangladesh?

We haven't confirmed a Bangladesh price for Xiaomi Redmi K40 yet. Its international price in 2022 listings was €280 (about ৳38,600 at the Bangladesh Bank rate of 15 October 2026).

Does Xiaomi Redmi K40 support 5G?

Yes. Xiaomi Redmi K40 supports 5G networks.

How big is the Xiaomi Redmi K40 battery?

4,520 mAh, with 33 W wired charging.

How much RAM and storage does Xiaomi Redmi K40 have?

6/8/12 GB RAM · 128 GB, 256 GB.