Samsung Galaxy A21s vs Xiaomi Redmi Note 9 Pro

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Galaxy A21s compared with Redmi Note 9 Pro

	SamsungGalaxy A21s	XiaomiRedmi Note 9 Pro
Overview
Released
Released	May 2020	May 2020
Display
Screen size
Screen size	6.5″	6.67″
Resolution
Resolution	1600 × 720	2400 × 1080 (better)
Sharpness
Sharpness	270 pixels per inch	395 pixels per inch (better)
Panel
Panel	LCD	LCD
Display type
Display type	HD+ TFT Infinity-O display, 20:9 aspect ratio	IPS LCD (YugaTech and Notebookcheck) with a central selfie-camera cutout; maker does not publish refresh rate.
Display features
Display features	–	Gorilla Glass 5, reading mode and 84% NTSC typical coverage.
Performance
Chip
Chip	Exynos 850	Qualcomm Snapdragon 720G
Memory
Memory	3 GB – 6 GB	6 GB
Storage
Storage	32 GB, 64 GB	64 GB, 128 GB (better)
CPU
CPU	–	8 nm octa-core CPU up to 2.3 GHz.
GPU
GPU	–	Adreno 618.
Storage type
Storage type	32 GB in the UK; dedicated microSD slot up to 512 GB	LPDDR4X and UFS 2.1 (YugaTech); Notebookcheck's storage tests instead suggested UFS 2.0. Dedicated microSD expansion up to 512 GB.
Cameras
Main camera
Main camera	48 MP	64 MP (better)
Ultra wide camera
Ultra wide camera	8 MP	8 MP
Telephoto camera
Telephoto camera	None	None
Optical zoom
Optical zoom	None	None
Front camera
Front camera	13 MP	16 MP (better)
Main camera
Main camera	48 MP, F2.0	f/1.89, 1/1.72-inch sensor and four-pixel binning to 1.6 µm.
Ultra wide camera
Ultra wide camera	8 MP, F2.2, 123-degree field of view	f/2.2 and 119° field of view, 108.3° after distortion correction.
Video recording
Video recording	–	Rear 4K at 30 fps, 1080p at 30/60 fps; slow motion up to 960 fps at 720p.
Front video
Front video	–	f/2.48 selfie lens; 120 fps slow-motion selfies.
Front camera
Front camera	13 MP, F2.2	–
Camera features
Camera features	2 MP F2.4 macro and 2 MP F2.4 depth cameras; 1080p video at 30 fps	Additional 5 MP f/2.4 macro camera with 2–10 cm autofocus and 2 MP f/2.4 depth sensor; night and document modes.
Battery and charging
Battery
Battery	5,000 mAh	5,020 mAh (better)
Wired charging
Wired charging	Up to 15 W	Up to 30 W (better)
Wireless charging
Wireless charging	None	None
Wired charging
Wired charging	–	Phone supports 30 W charging; the supplied adapter is rated at 33 W. YugaTech measured roughly 90 minutes for a full charge, while Notebookcheck measured two hours.
Design
Type
Type	Standard	Standard
Weight
Weight	192 g (better)	209 g
Thickness
Thickness	8.9 mm	8.8 mm (better)
Height × width
Height × width	163.6 × 75.3 mm	165.75 × 76.68 mm
Materials
Materials	Glossy plastic body	–
Colours
Colours	Black, white and blue in the UK	Glacier White, Interstellar Grey and Tropical Green.
Biometrics
Biometrics	Rear fingerprint reader and face recognition	Side fingerprint sensor and AI face unlock.
Speakers
Speakers	–	Single downward-firing speaker (both reviews), 3.5 mm headphone socket and IR blaster.
Software
Operating system
Operating system	Android	Android
Software at launch
Software at launch	Android 10 with One UI Core	MIUI 11 based on Android 10 (both reviews).
In the box
In the box	–	Charger, cable, protective cover, SIM tool and documents. Global/UK 64 MP and 30 W model; India's 48 MP Pro is different. Pinoy Techno Guide confirms May 2020 availability of the global phone in Philippine shops, used at month precision rather than claiming the earliest sale day worldwide.
Connectivity
SIM
SIM	Dual nano-SIM plus dedicated microSD slot on SM-A217F	Two nano-SIM cards plus a separate microSD slot; dual 4G VoLTE depends on the operator.
Wi-Fi
Wi-Fi	Wi-Fi 802.11a/b/g/n/ac at 2.4 and 5 GHz	Wi-Fi 5 (802.11ac), dual-band and Wi-Fi Direct.
Bluetooth
Bluetooth	Bluetooth 5.0	Bluetooth 5.0.
NFC
NFC	–	NFC with Google Pay support on the UK model.
USB
USB	USB Type-C 2.0; 3.5 mm headphone socket	USB-C; USB 2.0 data (Notebookcheck).
Positioning
Positioning	GPS, GLONASS, BeiDou and Galileo	–