Xiaomi Redmi Note 10S vs Samsung Galaxy A21 Specs Comparison

Availability

Officially announced
Mar 04, 2021	Apr 08, 2020
Prices (MSRP)
$229	$250

Design

Dimensions
6.32 x 2.93 x 0.33 inches 160.46 x 74.5 x 8.29 mm	6.61 x 3.02 x 0.32 inches 167.8 x 76.7 x 8.1 mm
Weight
6.31 oz (178.8 g)	6.81 oz (193.0 g)
Materials
	Back: Plastic Frame: Plastic
Resistance
Splash; IP53
Biometrics
2D Face unlock, Fingerprint (touch)	Fingerprint (touch)
Keys
Right: Volume control, Lock/Unlock key	Right: Volume control, Lock/Unlock key
Colors
Onyx Gray, Pebble White, Lake Green	Black

Display

Size
6.4-inch, 83.55% screen-to-body	6.5-inch, 79.20% screen-to-body
Type
AMOLED, 1100 nits	IPS LCD, 60Hz
Resolution
2400x1080px, 20:9 ratio, 409 PPI	1600x720px, 20:9 ratio, 270 PPI
Protection
Corning Gorilla Glass 3

Hardware

System chip
MediaTek Helio G95 (12 nm)	Mediatek Helio P35 MT6765 (12 nm)
Processor
Octa-core 2050 MHz Arm Cortex-A55 and Arm Cortex-A76	Octa-core 4x2.3GHz Cortex-A53 4x1.8G​Hz Cortex-A53
GPU
Arm Mali-G76 MC4	PowerVR GE8320
Memory
6GB (LPDDR4)/64GB (UFS 2.2) 6GB/128GB 8GB/128GB	3GB (LPDDR4)/32GB (eMMC 5.1)
Storage expansion
not expandable	microSDXC up to 512 GB
OS
Android (11)	Android (10)

Battery

Type
5000 mAh	4000 mAh, Li - Polymer
Charging
Fast charging	Fast charging
Charge speed
Wired: 33.0W	Wired: 15.0W

Camera

Rear
Quad camera	Quad camera
Main camera
64 MP (Autofocus) Aperture size: F1.8 Sensor size: 1/1.97” Pixel size: 0.7 μm	16 MP (PDAF) Aperture size: F1.8 Sensor size: 1/3.06" Pixel size: 1 μm
Second camera
8 MP (Ultra-wide) Aperture size: F2.2	8 MP (Ultra-wide) Aperture size: F2.2 Sensor size: 1/4" Pixel size: 1.12 μm
Third camera
2 MP (Macro) Aperture size: F2.4	2 MP (Macro) Aperture size: F2.4
Fourth camera
2 MP (Depth information) Aperture size: F2.4	2 MP (Depth information) Aperture size: F2.4
Flash
LED	LED
Video recording
Yes	1080p (30 fps)
Front
13 MP	13 MP Video capture: 1080p

Connectivity & Features

Bluetooth
5.0	5.0
WLAN
a,b,g,n,ac,dual-band Wi-Fi Direct, Hotspot 802.11 a, b, g, n, ac	a,b,g,n,ac,dual-band Wi-Fi Direct, Hotspot 802.11 a, b, g, n, ac
USB
Type-C	Type-C, USB 2.0
Sensors
Accelerometer, Ambient light sensor, Proximity sensor	Accelerometer, Gyroscope, Compass, Ambient light sensor, Proximity sensor
Hearing aid compatible
	M4/T3
Location
GPS, A-GPS, Glonass, Galileo, BeiDou, QZSS, SBAS, Cell ID, Wi-Fi positioning	GPS, A-GPS, Glonass, BeiDou, Cell ID, Wi-Fi positioning
Other
NFC, Infrared	NFC

Multimedia

Headphones
3.5mm jack	3.5mm jack
Speakers
Earpiece, Loudspeaker, Multiple speakers	Earpiece, Loudspeaker
Screen mirroring
Wireless screen share	Wireless screen share
Radio
	FM
Additional microphone(s)
Noise cancellation

Cellular

4G (FDD) Bands
1, 2, 3, 4, 5, 7, 8, 20, 28	1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 25, 26, 28, 66, 71
4G (TDD) Bands
38, 40, 41	38, 39, 40, 41
3G Bands
1, 2, 4, 5, 8	1, 2, 4, 5, 8
Data Speed
LTE-A Cat 12/13 (600/150 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s, UMTS	LTE-A Cat 6 (300/50 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
Dual SIM
Yes
SIM type
Nano SIM	Nano SIM
HD Voice
	Yes

Regulatory Approval

FCC approval
Date approved: Mar 28, 2021 FCC ID value: 2AFZZK7BG	Date approved: Apr 17, 2020 FCC ID value: ZCASMA215U
Measured SAR
Head: 1.07 W/kg Body: 0.81 W/kg Simultaneous Transmission: 1.58 W/kg Wireless Router: 1.00 W/kg	Head: 0.42 W/kg Body: 1.27 W/kg Simultaneous Transmission: 1.27 W/kg Wireless Router: 1.27 W/kg

Alternative variants

With 128GB storage

Memory	128GB

for Verizon

4G (FDD) Bands	1, 2, 3, 5, 7, 8, 20, 28
4G (TDD) Bands	38, 40, 41
3G Bands	5, 8, 2, 1

With 8GB RAM and 128GB storage

Memory	8GB/128GB

for Sprint

4G (FDD) Bands	2, 3, 4, 5, 7, 12, 13, 25, 26, 66, 71
4G (TDD) Bands	41

Links

Full specifications
Xiaomi Redmi Note 10S Specs	Samsung Galaxy A21 Specs
User Reviews
	Samsung Galaxy A21 User Reviews