Compare Redmi K40 Pro vs ASUS ZenFone 8 vs ASUS ZenFone 6
Connectivity
Ports
USB-C
USB-C 2.0 + 3.5mm audio combo
USB-C 2.0 + 3.5mm audio combo
Wireless Connectivity
WiFi 6E, Bluetooth 5.2, NFC, IR blaster
WiFi 6E + Bluetooth 5.2 + NFC
WiFi 5 + Bluetooth 5.0 + NFC
Construction
Battery | Capacity
4520 mAh
4000 mAh
5000 mAh
Camera | Front
20MP
Sony flagship IMX663 12 MP, f/2.5, 28mm, 1/2.93", 1.22µm, dual pixel PDAF
Motorized flip-up main camera module that doubles as front camera
Camera | Rear | Telephoto
5MP
Camera | Rear | Ultra-Wide
8MP, f/2.2
Sony IMX363 dual pixel, 12 MP, f/2.2, 112˚, 14mm, 1/2.55", 1.4µm, dual pixel PDAF
13 MP, f/2.4, 11mm
Camera | Rear | Wide
64MP, Sony IMX686, f/1.89
Sony flagship IMX686 64 MP, f/1.8, 26mm, 1/1.73", 0.8µm, PDAF, OIS
48 MP, f/1.8, 26mm
Colors
Glossy Black, Icy White, and Dreamland
Obsidian Black, Horizon Silver, Moonlight White
Twilight Silver, Midnight Black, Matte Black
Material
Corning Gorrila Glass 5
Glass front (Gorilla Glass Victus), glass back (Gorilla Glass 3), aluminum frame
Corning Gorilla Glass 6
Microphone
Triple microphones with OZO Audio Zoom & ASUS Noise Reduction Technology
Speakers
Dual speakers
Dual stereo speakers with Dirac HD Sound
Dimensions
Bezels
82.9% screen-to-body ratio
92% screen-to-body ratio
Size | Depth
7.8 mm
159.1 mm / 6.26 inches
Size | Height
163.7 mm
8.9 mm / 0.35"
9.1 mm / 0.36 inches
Size | Length
148 mm / 5.83"
Size | Width
76.4 mm
68.5 mm / 2.7"
75.44 mm / 2.97 inches
Weight
196 g
169 g / 5.96 oz
190 g / 6.7 oz
Display
Aspect Ratio
20:9
20:9
Brightness
900 nits (typ) / 1300 nits (max)
700 nits standard / 1100 nits peak
600 nits
Contrast Ratio
5,000,000:1 (typical)
Display Color Depth
10-bit
Display Diagonal
6.67 inch
5.9 inch
6.4 inch
Display Type
Samsung E4 AMOLED (OLED)
Samsung Super AMOLED (OLED)
IPS
Gamut
100% DCI-P3
112% DCI-P3, 107% NTSC, 151.9% sRGB
96% NTSC, 100% DCI-P3
Pixel Density
446 ppi
Refresh Rate
120 Hz
120 Hz
Resolution
FHD+ 2400x1080
FHD+ 2400x1080
FHD+ 2340x1080
Response Time
1 ms
Function
Audio
Dolby Atmos
Bluetooth Codecs
AAC / LDAC / LHDC
Bluetooth Profiles
A2DP, LE, aptX HD, aptX Adaptive
EDR + A2DP + aptX Adaptive
Chipset
Qualcomm Snapdragon 888
Qualcomm Snapdragon 888 5G Mobile Platform (5nm)
Qualcomm SM8150 Snapdragon 855 (7 nm)
DAC
Qualcomm Audio CODEC
Fast Charging
55W wired turbo charging
Fast charging 30W, 60% in 25 min, 100% in 80 min
18W Quick Charge 4.0 + 10W Reverse Charging
GPS
GPS: L1+L5 / Galileo: E1+E5a / GLONASS: G1 / Beidou
GPS (L1/L5), Glonass (L1), Galileo (E1/E5a), BeiDou (B1/B2a), QZSS (L1/L5), NavIC (L5)
GPS (Dual bands, L1+L5), GLONASS (G1), BDS (B1), GALILEO (Dual bands, E1+E5a), QZSS (Dual bands, L1+L5)
Graphics
Qualcomm Adreno 660 GPU
Qualcomm Adreno 660
Adreno 640
HDR
HDR10+
HDR 10 and HDR10+ certified
HDR10
Operating System
MIUI 12, Android 11
Android 11, ZenUI 8
Android with ZenUI
Processor
Qualcomm Kryo 680, 8-core
64-bit Octa-core (1x2.84 GHz Kryo 680 & 3x2.42 GHz Kryo 680 & 4x1.80 GHz Kryo 680)
Octa-core (1x2.84 GHz Kryo 485 & 3x2.42 GHz Kryo 485 & 4x1.78 GHz Kryo 485)
SIM
Dual nano 5G
Dual Nano 5G
Dual 4G
Security
Side-mounted fingerprint sensor
Sensor
Gyroscope sensor, E-compass sensor, Proximity sensor, Ambient light sensor, G-sensor, Hall sensor, In-display fingerprint sensor, Accelerator sensor, Face recognition sensor, Angle sensor
Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass
Touch Screen
360Hz touch sampling rate
Capacitive touch panel with 10 points multi-touch
Capacitive touch panel with 10 points multi-touch
Tuner
FM Radio
FM Radio
Video Recording
8K 30fps / 4K 60fps / FHD 960fps
8K 24fps / 4K 120fps / FHD 240fps / HD 480fps dual pixel PDAF
4K 60fps / FHD 240fps / HD 480fps gyro-EIS
Weather Resistance
IP65/IP68
Performance
Charging Time
52min to 100%
Memory | Capacity
6 or 8 GB
6, 8, 12, or 16 GB
6 / 8 GB
Memory | Type
LPDDR5 6400Mbps
LPDDR5
Power Supply
33 W
Storage
128 or 256 GB UFS 3.1
128 or 256 GB UFS3.1
Up to 256GB UFS2.1 + microSD
Production
Debut
2021-02-25
2021-05-12
2019-05
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