Xiaomi Redmi 9 vs Samsung Galaxy A21s compare

The best smartphone comparison tool: compare Xiaomi Redmi 9 vs Samsung Galaxy A21s and choose the best model for you

Compare Xiaomi Redmi 9 and Samsung Galaxy A21s

Comparison models can be changed by first selecting Brand from the drop-down menu and then Model from the next drop-down menu. Or by directly entering the name of the model in the find model field.

Smartphone 1

Xiaomi Redmi 9

Xiaomi Redmi 9

Smartphone 2

Samsung Galaxy A21s

Samsung Galaxy A21s

Smartphone 3

Xiaomi Redmi 9 vs Samsung Galaxy A21s

What is the difference between the Xiaomi Redmi 9 and Samsung Galaxy A21s? Which one is better? The answers to these questions and many more can be found here in this detailed comparison of the two phones. Discover the differences in specs between these two desirable devices, from screen size to battery life, in the table below. We have all the information you need to choose the best phone for you.


Common specs

Brand and model Xiaomi Redmi 9 Samsung Galaxy A21s
Rating (+0) (+0)
Review Xiaomi Redmi 9 Review Samsung Galaxy A21s Review
Release date 2020, June 10 2020, May 15
Dimensions (HxWxD) 163.3 x 77 x 9.1 mm | 6.43 x 6.43 x 3.03 in 163.7 x 75.3 x 8.9 mm | 6.44 x 6.44 x 2.96 in
Weight 198 g | 6.98 oz 192 g | 6.77 oz
Body Build Glass front (Gorilla Glass 3), plastic back, plastic frame
Colors Carbon Gray, Sunset Purple, Ocean Green, Pink/Blue Black, White, Blue, Red
Battery 5020 mAh, Non-removable Li-Po 5000 mAh, Non-removable Li-Po
Approximate price $ 130 190 EUR


Technology IPS LCD PLS TFT
Touchscreen capacitive touchscreen capacitive touchscreen
Display colors 16M 16M
Screen size 6.53" inc 6.5" inc
Screen area 104.7 cm2 102.0 cm2
Screen format 19.5:9 (height:width) 20:9 (height:width)
Screen to body ratio 83.2% 82.8%
Screen resolution 1080 x 2340 px 720 x 1600 px
Screen PPI /points per inch/ 395 PPI 270 PPI
Screen protection Corning Gorilla Glass 3
Other specs - 400 nits typ. brightness

Camera and Video

Rear camera, main 13 MP, Quad 48 MP, Quad
Camera specs -13 MP, f/2.2, 28mm (wide), 1/3.1'', 1.12µm, PDAF
-8 MP, f/2.2, 118° (ultrawide), 1/4.0'', 1.12µm
-5 MP, f/2.4, (macro)
-2 MP, f/2.4, (depth)
-48 MP, f/2.0, 26mm (wide), 1/2.0", 0.8µm, PDAF
-8 MP, f/2.2, 123˚ (ultrawide), 1/4.0", 1.12µm
-2 MP, f/2.4, (macro)
-2 MP, f/2.4, (depth)
Functions LED flash, HDR, panorama LED flash, panorama, HDR
Video 1080p@30fps 1080p@30fps
Front camera, selfie 8 MP, Single 13 MP, Single
Specifications 8 MP, f/2.0, 27mm (wide) 13 MP, f/2.2, (wide), 1/3.1'', 1.12µm
Functions HDR
Video 1080p@30fps 1080p@30fps


Operating system - OS Android 10, MIUI 12 Android 10, One UI 2.0
Chipset - Mediatek Helio G80 (12 nm) - Exynos 850 (8nm)
Processor CPU - Octa-core (2x2.0 GHz Cortex-A75 & 6x1.8 GHz Cortex-A55) - Octa-core (4x2.0 GHz Cortex-A55 & 4x2.0 GHz Cortex-A55)
Graphics processor GPU Mali-G52 MC2 Mali-G52
External memory microSDXC (dedicated slot) microSDXC (dedicated slot)
Internal memory 32GB 3GB RAM, 64GB 4GB RAM, 128GB 6GB RAM 32GB 3GB RAM, 64GB 4GB RAM, 64GB 6GB RAM
Antutu 8 201917 117324
GeekBench 5 Single Core 358 173
GeekBench 5 Multi-Core 1287 989

Communication and Connectivity

SIM card Dual SIM (Nano-SIM, dual stand-by) Single SIM (Nano-SIM)Dual SIM (Nano-SIM, dual stand-by)
Show all network frequencies:
Speed HSPA 42.2/5.76 Mbps, LTE-A HSPA 42.2/5.76 Mbps, LTE-A
GPRS Yes Yes
Edge Yes Yes
Wi-Fi Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot
NFC Yes (market/region dependent) Yes
USB 2.0, Type-C 1.0 reversible connector, USB On-The-Go 2.0, Type-C 1.0 reversible connector
Bluetooth 5.0, A2DP, LE 5.0, A2DP, LE
Harmful irradiation SAR - 0.91 W/kg (head) 1.00 W/kg (body)
SAR EU - 0.91 W/kg (head) 1.00 W/kg (body)

SAR EU - 0.42 W/kg (head) 1.54 W/kg (body)

Music and Audio

Radio Wireless FM radio
Headphone jack Yes Yes

Other features

Sensors - Fingerprint (rear-mounted), accelerometer, proximity, compass , Infrared port - Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass
Other extras
- Fast charging 18W

- Fast charging 15W
- Versions: SM-A217F/DS

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