Xiaomi Mi A1 vs Xiaomi Redmi Note 9S
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Display
Size
Resolution
Technology
IPS LCD
IPS LCD
Screen-to-body
70.87 %
84.42 %
Peak brightness
450 cd/m2 (nit)
Features
Oleophobic coating, Ambient light sensor, Proximity sensor
HDR video support, Scratch-resistant glass (Corning Gorilla Glass 5), Ambient light sensor, Proximity sensor
Hardware
System chip
Qualcomm Snapdragon 625 8953
Qualcomm Snapdragon 720G SM7125
Processor
GPU
Adreno 506
Adreno 618
RAM
Internal storage
64GB
64GB
Storage expansion
microSDXC up to 256 GB
microSDXC up to 512 GB
Device type
Smartphone
Smartphone
OS
Android (9.0 Pie, 8.1 Oreo, 8.0 Oreo, 7.1 Nougat)
Android (10)
Battery
Capacity
3080 mAh
5020 mAh
Type
Li - Ion, Not user replaceable
Li - Polymer, Not user replaceable
Charging
Fast charging
Fast charging
Camera
Rear
Dual camera
Quad camera
Main camera
Specifications
Aperture size: F2.2; Focal length: 26 mm; Pixel size: 1.25 μm
Aperture size: F1.8; Sensor size: 1/2"; Pixel size: 0.8 μm
Second camera
12 MP (Telephoto, Autofocus)
8 MP (Ultra-wide)
Specifications
Optical zoom: 2x; Aperture size: F2.6; Focal Length: 50 mm; Pixel size: 1 μm
Aperture size: F2.2; Pixel size: 1.12 μm
Third camera
5 MP (Macro, Autofocus)
Specifications
Aperture size: F2.4; Pixel size: 1.12 μm
Fourth camera
2 MP (Depth information)
Specifications
Aperture size: F2.4; Pixel size: 1.75 μm
Video recording
3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (30 fps), 1280x720 (HD) (120 fps)
3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (120 fps), 1280x720 (HD) (960 fps)
Features
Video calling, Video sharing
Front
5 MP
16 MP (HDR, Slow-motion videos)
Design
Dimensions
Weight
the average is 6.3 oz (179 g)
the average is 6.3 oz (179 g)
Materials
Back: Metal
Back: Glass (Corning Gorilla Glass 5)
Biometrics
Fingerprint (touch)
Fingerprint (touch)
Features
Touch sensitive control keys
Keys
Right: Volume control, Lock/Unlock key
Right: Volume control, Lock/Unlock key
Colors
Black, Gold, Pink
Interstellar grey, Aurora blue, Glacier white
Cellular
LTE (FDD)
Bands 1(2100), 3(1800), 5(850)
LTE (TDD)
Bands 40(2300), 41(2600+)
Bands 38(2600), 40(2300)
UMTS
850, 900, 1900, 2100 MHz
850, 900, 1700/2100, 1900, 2100 MHz
Data Speed
Dual SIM
Yes
Yes
SIM type
Nano SIM
Nano SIM
VoLTE
Yes
Multimedia
Headphones
3.5mm jack
3.5mm jack
Speakers
Earpiece, Loudspeaker
Earpiece, Loudspeaker
Features
Album art cover, Background playback
Screen mirroring
Wireless screen share
Wireless screen share
Radio
FM
Additional microphone(s)
for Noise cancellation
for Noise cancellation
Connectivity & Features
Bluetooth
4.2
5.0
Wi-Fi
802.11 a, b, g, n, ac, dual-band; Wi-Fi Direct, Hotspot
802.11 a, b, g, n, ac, dual-band; Wi-Fi Direct, Hotspot
USB
Type-C (reversible)
Type-C (reversible)
Features
Mass storage device, Charging
Charging
Location
GPS, A-GPS, Glonass, BeiDou
GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning
Sensors
Accelerometer, Gyroscope, Hall (for flip covers)
Accelerometer, Gyroscope, Compass
Other
Infrared, VoIP, Tethering, Computer sync, OTA sync
Infrared
Buyers information
Price
$ 249
In The Box
22.5W Wire charger, Simple protective cover, USB Type-C cable, SIM eject tool, User guide, Warranty card
Availability
Officially announced
Sep 05, 2017
Mar 23, 2020
