Xiaomi Redmi K40 vs Xiaomi Black Shark 4
Product
Price
579 USD
579 USD
Status
Available
Available
Brand
Xiaomi Mobiles
Xiaomi Mobiles
Model No
M2012K11C
Xiaomi Black Shark 4
Launch Date
2021, March 04
2021, March 31
Wikipedia
Technology
GSM / CDMA / HSPA / CDMA2000 / LTE / 5G
GSM / CDMA / HSPA / EVDO / LTE / 5G
2G bands
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2,
CDMA 800
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
CDMA 800 & TD-SCDMA
3G bands
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100,
CDMA2000 1x
HSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100
CDMA2000 1xEV-DO
4G bands
1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28, 34, 38, 39, 40, 41, 42
LTE
5G bands
1, 3, 28, 41, 77, 78 SA/NSA/Sub6
SA/NSA
Speed
HSPA 42.2/5.76 Mbps, LTE-A, 5G
HSPA 42.2/5.76 Mbps, LTE-A; 5G
Dimensions
163.7 x 76.4 x 7.8 mm (6.44 x 3.01 x 0.31 in)
163.8 x 76.4 x 9.9 mm (6.45 x 3.01 x 0.39 in)
Weight
196 g (6.91 oz)
210 g (7.41 oz)
Build
IP53, dust and splash protection, Corning Gorilla Glass 5
Gorilla Glass 5, Physical pop-up gaming triggers
SIM
Dual SIM (Nano-SIM, dual stand-by)
Dual SIM (Nano-SIM, dual stand-by)
Colors
Black, White, Aurora
Magic Black, Black, Blue, Silver
Type
Super AMOLED, 120Hz, HDR10+, 1300 nits (peak)
Super AMOLED, 144Hz, HDR10+, 1300 nits (peak)
Size
6.67 inches, 107.4 cm2 (~85.9% screen-to-body ratio)
6.67 inches, 107.4 cm2 (~85.8% screen-to-body ratio)
Resolution
1080 x 2400 pixels, 20:9 ratio (~395 ppi density)
1080 x 2400 pixels, 20:9 ratio (~395 ppi density)
Always-on display
RAM
8GB/12GB
8GB/12GB
Storage
128GB/256GB, UFS 3.1
128GB/256GB UFS 3.1
Card Slot
No
No
Lens 1
64 MP, f/1.9, 26mm (wide), 1/1.7", 0.8µm, PDAF
48 MP, f/1.8, (wide), 1/2.0", 0.8µm, PDAF
Lens 2
8 MP, f/2.2, 119˚ (ultrawide)
8 MP, f/2.2, 120˚ (ultrawide), 1/4.0", 1.12µm
Lens 3
5 MP, 50mm (macro), 1/5.0", 1.12µm
5 MP, f/2.4, (macro), AF
Features
Digital Zoom, Auto Flash, Face detection, Touch to focus, Exposure compensation, ISO control
LED flash, HDR, panorama
Video
8K@30fps, 4K@30/60fps, 1080p@30/60/120/240/960fps, gyro-EIS, HDR10+
4K@30/60fps, 1080p@30/60/240fps, 720p@1920fps
Lens 1
20 MP, (wide), 1/3.4", 0.8µm
20 MP, f/2.0, (wide), 0.8µm
Video
1080p@30fps, 720p@120fps
1080p@30fps
Features
HDR
Capacity
Li-Po 4520 mAh, non-removable
Li-Po 4500 mAh, non-removable
Charging
Fast charging 33W, 100% in 52 min,
Power Delivery 3.0,
Quick Charge 3+
Fast charging 120W
Magnetic charging 18W
Sensors
Fingerprint (side-mounted), accelerometer, gyro, proximity, compass, color spectrum, barometer
Fingerprint (under display, optical), accelerometer, gyro, proximity, compass
Loudspeaker
Yes, with stereo speakers
Yes, with stereo speakers
3.5mm jack
Yes
Yes
WLAN
Wi-Fi 802.11 a/b/g/n/ac/6e, dual-band, Wi-Fi Direct, hotspot
Wi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct, hotspot
Bluetooth
5.2, A2DP, LE
5.2, A2DP, LE, aptX HD, aptX Adaptive
GPS
Yes, with dual-band A-GPS, GLONASS, BDS, GALILEO, QZSS, NavIC
Yes, with A-GPS, GLONASS, GALILEO, QZSS, BDS
NFC
Yes
No
USB
USB Type-C 2.0, USB On-The-Go
USB Type-C 2.0
Radio
No
OS
Android 11, Joy UI 12.5
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