• 6.67" (2400x1080) AMOLED
  • 6GB/8GB/12GB
    Snapdragon 870 SoC
    128GB/256GB Storage
  • 48-MP, f/1.79 3 Rear Cameras
  • 4500 mAh
  • 6.67" (2400x1080) IPS LCD
  • 6GB
    Snapdragon 732 SoC
    64GB/128GB Storage
  • 64-MP, f/1.89 4 Rear Cameras
    CAMERA HW score: 127
  • 5160 mAh

Specifications Highlights
Product NameRedmi K40SX3 NFC
ProductRedmi K40S (Launched 2022-03-17)POCO X3 NFC (Launched 2020-09-07), Price: 277 USD at Amazon
Display6.67" 2400x1080 AMOLED 6.67" 2400x1080 IPS LCD
Rear Camera(s)
  • 48-MP f/1.79 (Primary)
  • 8-MP f/2.2
  • 2-MP f/2.4
  • 25mm 64-MP f/1.89 (Primary)
  • 15mm 13-MP f/2.2
  • 2-MP f/2.4 +Bokeh Sensor
  • 2-MP f/2.4
Selfie Camera(s)
  • 20-MP
  • 20-MP f/2.2
Computing
  • Snapdragon 870 SoC
  • 6GB/8GB/12GB RAM
  • 128GB/256GB Storage
  • Snapdragon 732 SoC
  • 6GB RAM
  • 64GB/128GB Storage
  • MicroSDXC
Battery4500 mAh5160 mAh
DesignIP Rating, 195g (6.9oz), 75.95x163.2x7.7 mm (2.99 x 6.43 x 0.30 inches)IP53, 215g (7.6oz), 76.8x165.3x9.4 mm (3.02 x 6.51 x 0.37 inches)
Price (Market)$277
Price at Launch$299
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Display
Product NameRedmi K40SX3 NFC
TypeAMOLEDIPS LCD
display_refresh_Ühz_Ünum240
Diagonal (inches)6.67"6.67"
Display/Body Ratio86.7%84.6%
Resolution2400x10802400x1080
Sharpness (PPI)395 PPI395 PPI
Brightness (specs)450 NITs
Display Glass TypeGorilla Glass 5Gorilla Glass 5
Features
  • Multitouch
  • Glossy
  • HDR
  • Multitouch
  • Glossy
  • 2.5D
  • HDR
Color Depth24 bit (16,777,216 Colors)24 bit (16,777,216 Colors)
Primary Camera
Product NameRedmi K40SX3 NFC
Megapixel8-MP64-MP
Aperturef/2.2f/1.89
Focal Length (35mm) 25mm
Sensor SizeSmallLarge
Autofocus Features
  • Phase Detection
Hardware Features
  • Quad Bayer
Ultrawide Camera
Product NameX3 NFC
Megapixel13-MP
Aperturef/2.2
Focal Length (35mm) 15mm
Sensor SizeSmall
Macro Camera
Product NameRedmi K40SX3 NFC
Megapixel2-MP2-MP
Aperturef/2.4f/2.4
Sensor SizeVery small
Hardware Features
  • Macro Lens
  • EIS
  • LED Flash
  • Macro Lens
Video Resolutions
  • 2160p/30fps
Battery
Product NameRedmi K40SX3 NFC
Battery TypeLi-PolyLi-Poly
Battery Capacity (mAh)4500 mAh5160 mAh
Battery Features
  • Fast Charge
  • Non-Removable
  • Fast Charge
  • Non-Removable
Computing
Product NameRedmi K40SX3 NFC
Processor BrandQualcommQualcomm
Processor NameSnapdragon 870Snapdragon 732
Processor # Cores88
Main Processor Frequency (GHz)3.2 GHz2.2 GHz
RAM Options6GB/8GB/12GB6GB
Internal Storage Options128GB/256GB64GB/128GB
Memory Card TypeMicroSDXC
Operating System + VersionAndroid 11Android 10
Communications
Product NameRedmi K40SX3 NFC
LTE Bands1, 18, 19, 2, 26, 28, 3, 34, 38, 39, 4, 40, 41, 5, 7, 81, 3, 40, 41, 5, 8
Modem Features
  • EDGE
  • GPRS
  • HSPA+
  • LTE
  • TD-SCDMA
  • 5G NSA
  • 5G SA
  • EDGE
  • GPRS
  • HSPA+
  • LTE
  • TD-SCDMA
WiFi Speed
  • a
  • b
  • g
  • n
  • ac
  • a
  • b
  • g
  • n
  • ac
WiFi Features
  • Dual-band
  • Hotspot
  • WiFi Direct
  • Dual-band
  • Hotspot
  • WiFi Direct
Bluetooth VersionBluetooth 5.2Bluetooth 5.1
Bluetooth Features
  • A2DP
  • BT LE
  • A2DP
  • BT LE
NFC Features
  • NFC Supported
  • NFC Supported
Connector TypeUSB Type CUSB Type C
Connector Features
  • USB 2.0
  • USB OTG
  • USB 2.0
  • USB OTG
Sim Card 0
Product NameRedmi K40SX3 NFC
NameSIM0SIM0
SIM TypeNano SIMNano SIM
Sim Card 1
Product NameRedmi K40SX3 NFC
NameSIM0SIM0
SIM TypeNano SIM/MicroSDNano SIM/MicroSD
Multimedia
Product NameRedmi K40SX3 NFC
Multimedia Features
  • IR
  • IR
Audio Features
  • Loudspeaker
  • Hi-Fi
  • FM Radio
  • Loudspeaker
  • FM Radio
  • 3.5mm Port
Audio Formats
  • AAC
  • AMR
  • AWB
  • RA
  • FLAC
  • MP3
  • OGA
  • OGG
  • WMA
  • WAV
  • AAC
  • 3GA
  • AMR
  • RA
  • AWB
  • FLAC
  • MID
  • MIDI
  • MP3
  • OGA
  • OGG
  • WMA
  • WAV
Video Formats
  • MPEG-4
  • MP4
  • DIVX
  • H.263
  • H.264
  • MPEG-4
  • MP4
  • XVID
Sensors
  • Accelerometer
  • Compass
  • Gyroscope
  • Fingerprint
  • GPS
  • A-GPS
  • BeiDou
  • Galileo
  • Proximity
  • Accelerometer
  • Compass
  • Gyroscope
  • Fingerprint
  • GPS
  • A-GPS
  • GLONASS
  • BeiDou
  • Galileo

Xiaomi Redmi K40S vs. POCO X3 NFC Specs & Speed Benchmarks

Battery Capacity (mAh)

Higher is better