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Xiaomi Redmi K40 Specs, review, opinions, comparisons

Discover all the technical specs of the Xiaomi Redmi K40 - from its camera and display to performance and battery life.
Added by on 02.26.21 | Last update 04.25.23
Xiaomi Redmi K40 Specs, review, opinions, comparisons
Xiaomi Redmi K40 Xiaomi Redmi K40 Xiaomi Redmi K40 Xiaomi Redmi K40 Xiaomi Redmi K40
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Xiaomi Redmi K40 is a 2021 smartphone. It measures 163.7 x 76.4 x 7.8 mm and weighs 196 g. It has a Super AMOLED display measuring 6.67" inches. The resolution is 1080 x 2400 and 395 ppi pixel density.

There is Single front camera with 20 MP. The main camera is Triple with 48 MP.

It runs on Octa-core (1x3.2 GHz Kryo 585 & 3x2.42 GHz Kryo 585 & 4x1.80 GHz Kryo 585) CPU with 128GB 6GB RAM, 128GB 8GB RAM, 256GB 8GB RAM, 256GB 12GB RAM memory. The battery is 4520 mAh.

Scroll down to discover all the features and specs this device has to offer.

Compare with another Copy

Linked models: Xiaomi Redmi K40S | Xiaomi Redmi K40 Gaming | Xiaomi Redmi K40 Pro | Xiaomi Redmi K40 Pro+ |

Pros and Cons

Xiaomi Redmi K40 specs

General specs

Brand and model

Xiaomi Redmi K40

Release date

2021, February 25

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)

Colors

Black, White, Aurora

Battery

4520 mAh, Li-Po, non-removable

Approximate price280 EUR

Screen

Technology

Super AMOLED

Touchscreen

capacitive touchscreen

Display colors

16M

Screen size

6.67" inc

Screen area

107.4 cm2

Screen format

20:9 (height:width)

Screen to body ratio

85.9%

Screen resolution

1080 x 2400 px

PPI /points per inch/

395 PPI

Screen protection

Corning Gorilla Glass 5

Other - 120Hz
-HDR10+
-1300 nits (peak)

Camera and Video

Rear camera, main

48 MP, Triple

Camera specs

-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

Functions

LED flash, HDR, panorama

Video 4K@30fps, 1080p@30/60/120/240/960fps, gyro-EIS
Front (selfie) camera

20 MP, Single

Specifications

20 MP, f/2.5, (wide), 1/3.4", 0.8µm

Functions

HDR

Video 1080p@30fps, 720p@120fps

Performance

Operating system OS

Android 11, MIUI 12

Chipset

Qualcomm SM8250-AC Snapdragon 870 5G (7 nm)

Other models with the same chipset include: vivo S16, ZTE Axon 30S, Xiaomi Poco F4, vivo iQOO Neo 6 (Global), Oppo Realme GT Neo 3T, vivo T2, ZTE Axon 40 pro, vivo S15, vivo iQOO Neo6 SE, Oppo Realme Q5 Pro
Processor CPU

- Octa-core (1x3.2 GHz Kryo 585 & 3x2.42 GHz Kryo 585 & 4x1.80 GHz Kryo 585)

Graphics processor GPU

- Adreno 650

External memory

No

Internal memory

128GB 6GB RAM, 128GB 8GB RAM, 256GB 8GB RAM, 256GB 12GB RAM

Benchmark

Antutu 9 Score 722021 (Rank 255 of 1310)
GeekBench 6 Single Core 1177 (Rank 72 of 480)
GeekBench 6 Multi Core 3053 (Rank 90 of 480)
GeekBench 6 Vulkan 3126 (Rank 91 of 256)
GeekBench 6 OpenCL 2911 (Rank 82 of 306)
GeekBench 5 Single Core 917 (Rank 220 of 1646)
GeekBench 5 Multi-Core 3083 (Rank 229 of 1637)

Communication and Connectivity

SIM card Dual SIM (Nano-SIM, dual stand-by)
Network GSM / CDMA / HSPA / CDMA2000 / LTE / 5G
Show all network frequencies:
Speed HSPA 42.2/5.76 Mbps, LTE-A, 5G
GPRS Yes
Edge Yes
Wi-Fi Wi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct, hotspot
GPS Yes, with dual-band A-GPS, GLONASS, BDS, GALILEO, QZSS, NavIC
NFC Yes
USB USB Type-C 2.0, USB On-The-Go
Bluetooth 5.1, A2DP, LE

Music and Audio

Radio No
Headphone jack No
Others
- 24-bit/192kHz audio

Other features

- Sensors - Fingerprint (side-mounted), accelerometer, gyro, proximity, compass, color spectrum , Infrared port
- Fast charging 33W, 100% in 52 min
-Power Delivery 3.0
-Quick Charge 3+
Disclaimer: The information provided here is based on publicly available information and official specifications from Xiaomi. While every effort has been made to provide accurate and reliable information, readers should be aware that specifications are subject to change and updates from Xiaomi may not be reflected.

Xiaomi Redmi K40 Video review - click to play

Richard Taylor

Richard Taylor

Richard Taylor is a technology expert and journalist based in the UK. With a degree in Computer Science from the University of Birmingham, he provides insightful analysis and expert reviews of the latest smartphones and technology. His technical expertise, passion for technology and years of experience make him a trusted source in the industry.


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Frequently Asked Questions

The base approximate price of the Xiaomi Redmi K40 was around 280 EUR after it was officially announced. At this point, the price may be lower.
The official release date is 2021, February 25.
The weight of the Xiaomi Redmi K40 is 196 g.
The screen size of the Xiaomi Redmi K40 is 6.67" inches.
The size of the Xiaomi Redmi K40 is 163.7 x 76.4 x 7.8 mm (HxWxD).

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Compare with similar models:

Xiaomi Redmi K30 Ultra Huawei P30 Pro Xiaomi Mi 10 5G Xiaomi Redmi Note 8 Pro
Model Xiaomi
Redmi K30 Ultra
Huawei
P30 Pro
Xiaomi
Mi 10 5G
Xiaomi
Redmi Note 8 Pro
Year 2020 2019 2020 2019
Screen 6.67 "
AMOLED
6.47 "
OLED
6.67 "
Super AMOLED
6.53 "
IPS LCD
Camera Quad
64 MP
Quad
40 MP
Quad
108 MP
Quad
64 MP
Weight 213 gr 192 gr 208 gr 199 gr
Battery 4500 mah 4200 mah 4780 mah 4500 mah
Compare Compare Compare Compare