Xiaomi Redmi K40 Gaming vs Infinix Smart 20

Key Specs
Display 6.67"
Battery 5065 mAh
Camera 64 MP + 8 MP + 2 MP
Storage 256 GB 12 GB RAM

Network
TechnologyGSM / CDMA / HSPA / CDMA2000 / LTE / 5G
2G bandsGSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
 CDMA 800
3G bandsHSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
 CDMA2000 1x
4G bands1, 2, 3, 4, 5, 7, 8, 18, 19, 26, 34, 38, 39, 40, 41, 42
5G bands1, 3, 28, 41, 77, 78 SA/NSA/Sub6
SpeedHSPA 42.2/5.76 Mbps, LTE-A, 5G
Launch
Announced2021, April 27
StatusAvailable. Released 2021, April 30
Body
Dimensions161.9 x 76.9 x 8.3 mm (6.37 x 3.03 x 0.33 in)
Weight205 g (7.23 oz)
BuildGlass front (Gorilla Glass 5), glass back (Gorilla Glass 5)
SIMDual SIM (Nano-SIM, dual stand-by)
 Physical pop-up gaming triggers
IP53, dust and splash protection
Display for Xiaomi Redmi K40 Gaming
TypeOLED, 1B colors, 120Hz, HDR10+, 500 nits (typ)
Size6.67 inches, 107.4 cm2 (~86.3% screen-to-body ratio)
Resolution1080 x 2400 pixels, 20:9 ratio (~395 ppi density)
ProtectionCorning Gorilla Glass 5
Platform
OSAndroid 11, MIUI 12.5
ChipsetMediaTek MT6893 Dimensity 1200 5G (6 nm)
CPUOcta-core (1x3.0 GHz Cortex-A78 & 3x2.6 GHz Cortex-A78 & 4x2.0 GHz Cortex-A55)
GPUMali-G77 MC9
Memory
Card slotNo
Internal128GB 6GB RAM, 128GB 8GB RAM, 128GB 12GB RAM, 256GB 8GB RAM, 256GB 12GB RAM
 UFS 3.1
Main Camera
Triple64 MP, f/1.7, 26mm (wide), 1/2.0", 0.7µm, PDAF
8 MP, f/2.2, 120Ëš (ultrawide)
2 MP, f/2.4, (macro)
FeaturesDual-LED flash, HDR, panorama
Video4K@30fps, 1080p@30/60/120fps, 720p@960fps, HDR
Selfie camera
Single16 MP
FeaturesHDR
Video1080p@30fps, 720p@120fps, HDR
Sound
Loudspeaker Yes, with stereo speakers
3.5mm jack No
 24-bit/192kHz audio
Tuned by JBL
Comms
WLANWi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct, hotspot
Bluetooth5.2, A2DP, LE
GPSYes, with dual-band A-GPS, GLONASS, BDS, GALILEO, QZSS, NavIC
NFCYes
Infrared portYes
RadioNo
USBUSB Type-C 2.0, USB On-The-Go
Features
SensorsFingerprint (side-mounted), accelerometer, gyro, proximity, compass, barometer, color spectrum
Battery
TypeLi-Po 5065 mAh, non-removable
ChargingFast charging 67W, 100% in 42 min (advertised)
Power Delivery 3.0
Quick Charge 3+
space
Key Specs
Display 6.78""
Battery 5200 mAh
Camera 8 MP
Storage 64GB Built-in
Network
Technology GSM / HSPA / LTE
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, 20, 28, 38, 41, 40
Speed HSPA, LTE
Launch
Announced 2026, March 04
Status Available. Released 2026, March
Body
Dimensions 167.7 x 78.8 x 7.7 mm (6.60 x 3.10 x 0.30 in)
Weight -
Build Glass front, plastic back, plastic frame
SIM Nano-SIM + Nano-SIM
 IP64 dust tight and water resistant (water splashes)
Drop resistant up to 1.5m
Display for Infinix Smart 20
Type IPS LCD, 120Hz, 700 nits (HBM)
Size 6.78 inches, 109.5 cm2 (~82.9% screen-to-body ratio)
Resolution 720 x 1576 pixels, 19.5:9 ratio (~259 ppi density)
Platform
OS Android 16, XOS 16
Chipset Mediatek Helio G81 Ultimate (12 nm)
CPU Octa-core (2x2.0 GHz Cortex-A75 & 6x1.7 GHz Cortex-A55)
GPU Mali-G52 MC2
Memory
Card slot microSDXC (dedicated slot)
Internal 64GB 4GB RAM, 128GB 4GB RAM
 eMMC 5.1
Main Camera
Single 8 MP, f/2.0, (wide), 1/4.0", 1.12µm, AF
Features Dual-LED flash, panorama
Video 1440p@30fps, 1080p@30fps
Selfie camera
Single 8 MP, f/2.0, (wide), 1/4.0", 1.12µm
Video 1440p@30fps, 1080p@30fps
Sound
Loudspeaker Yes
3.5mm jack Yes
Comms
WLAN Wi-Fi 802.11 a/b/g/n/ac, dual-band
Bluetooth Yes
Positioning GPS
NFC Yes
Infrared port Yes
Radio FM radio
USB USB Type-C 2.0, OTG
Features
Sensors Fingerprint (side-mounted), accelerometer, proximity, compass
Battery
Type 5200 mAh
Charging 15W wired
5W reverse wired