Samsung Galaxy A51 vs Xiaomi Redmi Note 8 Comparison and Differences

Smartphone 1

Samsung Galaxy A51

Samsung Galaxy A51

Smartphone 2

Xiaomi Redmi Note 8

Xiaomi Redmi Note 8

Smartphone 3

Samsung Galaxy A51 or Xiaomi Redmi Note 8 Specs Comparison

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Common specs

Brand and model Samsung Galaxy A51 Xiaomi Redmi Note 8
Rating (+0) (+0)
Release date 2019, December 2019, August
Dimensions (HxWxD) 158.5 x 73.6 x 7.9 mm | 6.24 x 6.24 x 2.9 in 158.3 x 75.3 x 8.4 mm | 6.23 x 6.23 x 2.96 in
Weight 172 g | 6.07 oz 190 g | 6.7 oz
Body Build Glass front (Gorilla Glass 3), plastic back, plastic frame Front/back glass (Gorilla Glass 5)
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Colors Prism Crush Black, White, Blue, Pink Neptune Blue, Moonlight White, Space Black
Battery 4000 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 $280 175 EUR
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Screen

Technology Super AMOLED IPS LCD
Touchscreen capacitive touchscreen capacitive touchscreen
Display colors 16M 16M
Screen size 6.5" in 6.3" in
Screen area 102.0 cm2 97.4 cm2
Screen format 20:9 (height:width) 19.5:9 (height:width)
Screen to body ratio 87.4% 81.7%
Screen resolution 1080 x 2400 px 1080 x 2340 px
Screen PPI /points per inch/ 405 PPI 409 PPI
Screen protection Corning Gorilla Glass 3 Corning Gorilla Glass 5
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Camera and Video

Rear camera, main 48 MP, Quad 48 MP, Quad
Camera specs -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
-48 MP, f/1.8, 26mm (wide), 1/2", 0.8µm, PDAF
-8 MP, f/2.2, 13mm (ultrawide), 1/4", 1.12µm
-2 MP, f/2.4, 1/5", 1.75µm (dedicated macro camera)
-2 MP, f/2.4, 1/5", 1.75µm, depth sensor
Functions LED flash, panorama, HDR LED flash, HDR, panorama
Video 2160p@30fps, 1080p@30/120fps; gyro-EIS 2160p@30fps, 1080p@30/60/120fps, gyro-EIS
DxOMark Main Score 87
DxOMark Photo 90
DxOMark Video 86
Front camera, selfie 32 MP, Single 13 MP, Single
Specifications 32 MP, f/2.2, 26mm (wide), 1/2.8", 0.8µm 13 MP, f/2.0, 1.12µm
Functions HDR HDR, panorama
Video 1080p@30fps 1080p@30fps

Performance

Operating system - OS Android 10.0; One UI 2 Android 9.0 (Pie); MIUI 10
Chipset - Exynos 9611 (10nm) - Qualcomm SM6125 Snapdragon 665 (11 nm)
CPU - Octa-core (4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53) - Octa-core (4x2.0 GHz Kryo 260 Gold & 4x1.8 GHz Kryo 260 Silver)
GPU Mali-G72 MP3 Adreno 610
External memory microSD, up to 1 TB (dedicated slot) microSD, up to 256 GB (dedicated slot)
Internal memory 64GB 4GB RAM, 128GB 4GB RAM, 128GB 6GB RAM, 128GB 8GB RAM 32GB 3GB RAM, 64GB 4GB RAM, 64GB 6GB RAM, 128GB 4GB RAM, 128GB 6GB RAM

Benchmark

Antutu 10 Total 266589 227941
Antutu 10 CPU 78142 84510
Antutu 10 GPU 45333 34789
Antutu 10 Mem 67437 51208
Antutu 10 UX 78142 84510
Antutu 8 Total 138454 173592
Antutu 7 Total
GeekBench 6 Single Core 325 323
GeekBench 6 Multi Core 1031 1062
GeekBench 6 OpenCL 761 293
GeekBench 6 Vulkan 1472 477
GeekBench 5 Single Core 264 309
GeekBench 5 Multi-Core 1276 1328
GeekBench 4 Single Core 1499
GeekBench 4 Multi-Core 5543

Communication and Connectivity

SIM card Single SIM (Nano-SIM)Dual SIM (Nano-SIM, dual stand-by) 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 (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)
-2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
-3G - HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
HSDPA 850 / 900 / 2100
-4G - LTE band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 20(800), 38(2600), 40(2300)
LTE band 1(2100), 3(1800), 5(850), 8(900), 38(2600), 40(2300), 41(2500)
Speed HSPA, LTE-A HSPA 42.2/11.5 Mbps, 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, BDS
NFC Yes
USB 2.0, Type-C 1.0 reversible connector, USB On-The-Go 2.0, Type-C 1.0 reversible connector, USB On-The-Go
Bluetooth 5.0, A2DP, LE 4.2, 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)
SAR - 0.26 W/kg (head) 1.00 W/kg (body)
SAR EU - 0.19 W/kg (head) 1.09 W/kg (body)

Music and Audio

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

Other features

Sensors - Fingerprint (under display, optical), accelerometer, gyro, proximity, compass - Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass , Infrared port
Other extras
- ANT+
- Fast battery charging 15W

- Fast battery charging 18W
- Splash protection
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 Samsung Galaxy A51 and Xiaomi Redmi Note 8

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