Xiaomi Redmi Note 9S vs Samsung Galaxy A51 Comparison and Differences

Smartphone 1

Xiaomi Redmi Note 9S

Xiaomi Redmi Note 9S

Smartphone 2

Samsung Galaxy A51

Samsung Galaxy A51

Smartphone 3

Xiaomi Redmi Note 9S or Samsung Galaxy A51 Specs Comparison

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Common specs

Brand and model Xiaomi Redmi Note 9S Samsung Galaxy A51
Rating (+0) (+0)
Release date 2020, March 23 2019, December
Dimensions (HxWxD) 165.8 x 76.7 x 8.8 mm | 6.53 x 6.53 x 3.02 in 158.5 x 73.6 x 7.9 mm | 6.24 x 6.24 x 2.9 in
Weight 209 g | 7.37 oz 172 g | 6.07 oz
Body Build Glass front (Gorilla Glass 5), glass back (Gorilla Glass 5), plastic frame Glass front (Gorilla Glass 3), plastic back, plastic frame
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Colors Aurora Blue, Glacier White, Interstellar Gray Prism Crush Black, White, Blue, Pink
Battery 5020 mAh,  Non-removable Li-Po 4000 mAh,  Non-removable Li-Po
Battery life Talking time - Up to 32 h (3G)
Music play - Up to 87 h
Approximate price $ 199 $280
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Screen

Technology IPS LCD Super AMOLED
Touchscreen capacitive touchscreen capacitive touchscreen
Display colors 16M 16M
Screen size 6.67" in 6.5" in
Screen area 107.4 cm2 102.0 cm2
Screen format 20:9 (height:width) 20:9 (height:width)
Screen to body ratio 84.5% 87.4%
Screen resolution 1080 x 2400 px 1080 x 2400 px
Screen PPI /points per inch/ 395 PPI 405 PPI
Screen protection Corning Gorilla Glass 5 Corning Gorilla Glass 3
Other specs - 450 nits typ. brightness (advertised)
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Camera and Video

Rear camera, main 48 MP, Quad 48 MP, Quad
Camera specs -48 MP, f/1.8, 26mm (wide), 1/2.0'', 0.8µm, PDAF
-8 MP, f/2.2, 13mm (ultrawide), 1/4.0'', 1.12µm
-5 MP, f/2.4, (macro), 1.12µm
-2 MP, f/2.4, (depth)
-48 MP, f/2.0, 26mm (wide), 1/2.0", 0.8µm, PDAF
-12 MP, f/2.2, 12mm (ultrawide)
-5 MP, f/2.4, 25mm (macro), 1/5.0", 1.12µm
-5 MP, f/2.2, 1/5.0", 1.12µm, depth sensor
Functions LED flash, HDR, panorama LED flash, panorama, HDR
Video 2160p@30fps, 1080p@30/60/120fps, 720p@960fps, gyro-EIS 2160p@30fps, 1080p@30/120fps; gyro-EIS
DxOMark Main Score 87
DxOMark Photo 90
DxOMark Video 86
Front camera, selfie 16 MP, Single 32 MP, Single
Specifications 16 MP, f/2.5, (wide), 1.0µm 32 MP, f/2.2, 26mm (wide), 1/2.8", 0.8µm
Functions HDR, panorama HDR
Video 1080p@30fps 1080p@30fps

Performance

Operating system - OS Android 10.0; MIUI 11 Android 10.0; One UI 2
Chipset - Qualcomm SM7125 Snapdragon 720G (8 nm) - Exynos 9611 (10nm)
CPU - Octa-core (2x2.3 GHz Kryo 465 Gold & 6x1.8 GHz Kryo 465 Silver) - Octa-core (4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53)
GPU Adreno 618 Mali-G72 MP3
External memory microSDXC (dedicated slot) microSD, up to 1 TB (dedicated slot)
Internal memory 64GB 4GB RAM, 128GB 6GB RAM 64GB 4GB RAM, 128GB 4GB RAM, 128GB 6GB RAM, 128GB 8GB RAM

Benchmark

Antutu 10 Total 390602 266589
Antutu 10 CPU 139828 78142
Antutu 10 GPU 74076 45333
Antutu 10 Mem 73867 67437
Antutu 10 UX 139828 78142
Antutu 9 Total 303943
Antutu 8 Total 278791 138454
Antutu 7 Total
GeekBench 6 Single Core 729 325
GeekBench 6 Multi Core 1714 1031
GeekBench 6 OpenCL 1144 761
GeekBench 6 Vulkan 582 1472
GeekBench 5 Single Core 568 264
GeekBench 5 Multi-Core 1693 1276

Communication and Connectivity

SIM card Dual SIM (Nano-SIM, dual stand-by) Single SIM (Nano-SIM)Dual SIM (Nano-SIM, dual stand-by)
Network GSM / HSPA / LTE GSM / HSPA / LTE
Bands -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
-3G - HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
-4G - LTE band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 20(800), 28(700), 38(2600), 40(2300)
-2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only)
-3G - HSDPA 850 / 900 / 1900 / 2100  
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
-4G - LTE band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 12(700), 13(700), 17(700), 20(800), 26(850), 28(700), 38(2600), 40(2300), 41(2500), 66(1700/2100)
Speed HSPA 42.2/5.76 Mbps, LTE-A HSPA, LTE-A
GPRS Yes Yes
Edge Yes Yes
Wi-Fi Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot
GPS Yes, with A-GPS, GLONASS, GALILEO, BDS Yes, with A-GPS, GLONASS, GALILEO, BDS
NFC Yes
USB 2.0, Type-C 1.0 reversible connector 2.0, Type-C 1.0 reversible connector, USB On-The-Go
Bluetooth 5.0, A2DP, LE 5.0, A2DP, LE
Harmful irradiation SAR - 0.80 W/kg (head) 0.67 W/kg (body)
SAR EU - 0.37 W/kg (head) 1.59 W/kg (body)

Music and Audio

Radio FM radio, recording FM radio
Headphone jack Yes Yes
Others - Active noise cancellation with dedicated mic

Other features

Sensors - Fingerprint (side-mounted), accelerometer, gyro, proximity, compass , Infrared port - Fingerprint (under display, optical), accelerometer, gyro, proximity, compass
Other extras
- Fast charging 18W
- Splash-proof

- ANT+
- Fast battery charging 15W
Versions
- Versions: SM-A515F/DSN (Global); SM-A515F/DS (LATAM); SM-A515F/DST (Brazil); SM-A515F/DSM (Russia); SM-A515F/N (Australia)

Reviews and Opinions on Xiaomi Redmi Note 9S and Samsung Galaxy A51

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