Overall Score
63.0Category Breakdown
Overall(#1112)63.0
Performance(#693)90.5
Camera(#1042)68.1
Display(#538)93.7
Battery(#2888)31.0
Build(#4361)0.2
Connectivity(#791)83.5
Audio(#115)87.6
Comparisons Featuring Xiaomi Redmi K40
Short Review
- The Xiaomi Redmi K40 features a sleek design with dimensions of 163.7 x 76.4 x 7.8 mm and a weight of 196 grams, available in Black, White, and Aurora colors.
- Its 6.67-inch Super AMOLED display supports a 120Hz refresh rate and HDR10+, providing vibrant visuals with a peak brightness of 1300 nits.
- Powered by the Qualcomm Snapdragon 870 chipset, it delivers robust performance with an octa-core CPU and Adreno 650 GPU, available in multiple RAM and storage configurations.
- The camera system includes a 48 MP main sensor, an 8 MP ultrawide lens, and a 5 MP macro lens, capable of recording 4K video at 30fps and various slow-motion options.
- The 20 MP front camera supports high-quality selfies.
- The battery capacity is 4520 mAh, supporting 33W fast charging, though it lacks wireless charging.
- Running on Android 11 with MIUI 12, the software experience is smooth and feature-rich.
- Connectivity options include 5G support, Wi-Fi 6, Bluetooth 5.1, and NFC.
- The device is equipped with stereo speakers for enhanced audio output.
- Overall, the Xiaomi Redmi K40 combines a premium display, solid performance, and versatile camera capabilities in a lightweight design.
Specifications
General
Release Date2021, February 25
Announced2021, February 25
DescriptionN/A
Display
Size6.67"
TypeSuper AMOLED, 120Hz, HDR10+, 1300 nits (peak)
Resolution1080 x 2400 pixels, 20:9 ratio (~395 ppi density)
PPI1080
Refresh Rate120Hz
HDR Support✓
ProtectionCorning Gorilla Glass 5
Performance
ChipsetQualcomm SM8250-AC Snapdragon 870 5G (7 nm)
CPUOcta-core (1x3.2 GHz Kryo 585 & 3x2.42 GHz Kryo 585 & 4x1.80 GHz Kryo 585)
GPUAdreno 650
Memory128GB 6GB RAM, 128GB 8GB RAM, 256GB 8GB RAM, 256GB 12GB RAM
Expandable Storage✗
Card SlotNo
Camera
Main Camera48 MP, f/1.8, 26mm (wide), 1/2.0", 0.8µm, PDAF8 MP, f/2.2, 119˚ (ultrawide)5 MP, f/2.4, 50mm (macro), 1/5.0", 1.12µm
Main Camera FeaturesColor spectrum sensor, LED flash, HDR, panorama
Front Camera20 MP, f/2.5, (wide), 1/3.4", 0.8µm
Front Camera FeaturesHDR
Video Recording4K@30fps, 1080p@30/60/120/240/960fps, gyro-EIS
Selfie Video1080p@30fps, 720p@120fps
Optical Stabilization✗
Night Mode✗
Raw Photo Support✗
Battery
Capacity4520 mAh
Battery DetailsLi-Po 4520 mAh
Charging Details33W wired, PD3.0, QC3, 100% in 52 min
Fast Charging✗
Wireless Charging✗
Build & Safety
Dimensions163.7 x 76.4 x 7.8 mm (6.44 x 3.01 x 0.31 in)
Weight196 g
MaterialsN/A
ColorsBlack, White, Aurora
Foldable✗
SARN/A
Connectivity
SIMNano-SIM + Nano-SIM
NetworkGSM / CDMA / HSPA / CDMA2000 / LTE / 5G
Network SpeedHSPA, LTE, 5G
5G✓
4G✓
WiFiWi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct
Bluetooth5.1, A2DP, LE
NFC✓
USBUSB Type-C 2.0, OTG
IR Blaster✗
Headphone Jack✗
Radio✗
PositioningGPS (L1+L5), GLONASS (G1), BDS (B1I+B2a), GALILEO (E1+E5a), QZSS (L1+L5), NavIC
Audio
Stereo Speakers✓
LoudspeakerYes, with stereo speakers
Audio JackNo
Software & Security
Operating SystemAndroid 11, MIUI 12
Fingerprint✓
Face Unlock✗
SensorsFingerprint (side-mounted), accelerometer, gyro, proximity, compass