Samsung Galaxy A51 vs Xiaomi Redmi Note 9S: Side by Side Specs Comparison

This is a side-by-side smartphone specs comparison of the Samsung Galaxy A51 and Xiaomi Redmi Note 9S.

The Samsung Galaxy A51 has a 6.5-inch display, Samsung Exynos 9611 processor, quad cameras, 4G LTE connectivity, and 4000mAh battery.

Meanwhile, the Xiaomi Redmi Note 9S has a 6.67-inch display, Qualcomm Snapdragon 720G processor, quad cameras, 4G LTE connectivity, and 5020mAh battery.


Specs Samsung Galaxy A51 Xiaomi Redmi Note 9S
Picture Samsung Galaxy A51
3.4/5 stars (502 ratings)
× Xiaomi Redmi Note 9S
3.6/5 stars (342 ratings)
Screen 6.5-inch FHD+ Super AMOLED Display (1080 x 2400 Pixels, 405 ppi) with Corning Gorilla Glass 3, 20:9 Aspect Ratio and Punch-hole 6.67-inch FHD+ IPS LCD Display (1080 x 2400 Pixels, 395 ppi) with Corning Gorilla Glass 5, 20:9 Aspect Ratio and Punch-hole
OS Android 9.0 Pie with One UI Android 10 with MIUI 11
Chipset Samsung Exynos 9611 Qualcomm Snapdragon 720G
CPU Octa Core CPU
4x Cortex-A73 @ 2.3GHz & 4x Cortex-A53 @ 1.7GHz
Octa Core CPU
2x Kryo 465 Gold @ 2.3GHz & 6x Kryo 465 Gold @ 1.8GHz
GPU Mali-G72 MP3 Adreno 618
RAM 6 GB 4GB or 6GB of RAM
Rear Camera Quad Cameras:
48MP Main Camera (f/2.0 Aperture, PDAF)
12MP Ultra-wide (f/2.2 Aperture, 123° FOV)
5MP Macro (f/2.4 Aperture)
5MP Depth Sensor
-LED Flash
Quad Cameras:
48MP Main Camera (f/1.79 Aperture, Autofocus)
8MP Ultra-wide (f/2.2 Aperture, 119° FOV)
5MP Macro (f/2.4 Aperture)
2MP Depth Sensor
-Dual LED Flash
-4K Video Recording
Front Camera 32 Megapixels (f/2.2 Aperture)
16 Megapixels (f/2.48 Aperture)
Storage 128GB 64GB or 128GB
Expansion 512GB via microSD 512GB via microSD
SIM Dual SIM (Nano-SIM) Dual SIM (Nano-SIM)
Networks 4G LTE, 3G HSPA+, 2G EDGE & GPRS Networks 4G LTE, 3G HSPA+, 2G EDGE & GPRS Networks
Wi-Fi Wi-Fi 802.11 b/g/n/ac (Dual Band) Wi-Fi 802.11 b/g/n/ac (Dual Band)
NFC Yes No
Bluetooth Bluetooth 5.0 Bluetooth 5.0
Infrared Yes
Position A-GPS, GLONASS, Galileo 7 BeiDou A-GPS, GLONASS & BeiDou
USB OTG Yes Yes
USB USB Type-C USB Type-C
3.5mm Audio Jack Yes Yes
Audio Enhancement None Smart PA
FM Radio Yes Yes
Sensors Face Recognition & Fingerprint Sensor
Proximity Sensor & Ambient Light Sensor
Compass, Gyroscope & Accelerometer
Face Recognition & Fingerprint Sensor
Proximity Sensor & Ambient Light Sensor
Compass, Gyroscope & Accelerometer
Battery 4000 mAh Li-Po Battery (Non-removable)
15W Fast Charging
5020 mAh Li-Po Battery (Non-removable)
18W Fast Charging
Material Glossy Plastic Glass Front & Back with Metal Frame
Size 158.5 x 73.6 x 7.9 mm 165.75 x 76.68 x 8.8 mm
Weight 172 g 209 g
Colors Prism Crush Black and Prism Crush Blue Interstellar Grey, Aurora Blue and Glacier White
Release Date June 27, 2020 April 30, 2020
Price 17,990.00 - Official Price in the Philippines 10,490.00 - Official price of 4GB RAM + 64GB storage version in the Philippines
11,990.00 - Official price of 6GB RAM + 128GB storage version in the Philippines
Buy Online Samsung Galaxy A51 on Lazada
Samsung Galaxy A51 on Shopee
Xiaomi Redmi Note 9S on Lazada
Xiaomi Redmi Note 9S on Shopee


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