Samsung Galaxy A51 vs SAMSUNG Galaxy A18: Side by Side Specs Comparison

This is a side-by-side specs comparison of the Samsung Galaxy A51 and SAMSUNG Galaxy A18 smartphones.

The Samsung Galaxy A51 features a 6.5-inch display, 4,000mAh battery, 15W charging rate, quad-camera setup and Samsung Exynos 9611 chipset.

Meanwhile, the SAMSUNG Galaxy A18 features a slightly larger 6.7-inch display, 50MP main camera, 5,000mAh battery, 25W fast charging and IP64 dust & water resistance.

Specs Samsung Galaxy A51 SAMSUNG Galaxy A18
Picture & Ratings Samsung Galaxy A51
3.4/5 stars (506)
× SAMSUNG Galaxy A18
4/5 stars (2)
Design and Display
Display 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 6.7-inch FHD+ Super AMOLED Display (1080 x 2340 Pixels, 385 ppi) with 120Hz Refresh Rate and notch
Size 158.5 x 73.6 x 7.9 mm 164.4 x 77.9 x 7.7 mm
Weight 172 g 196 g
Build Glossy Plastic Glass front, Plastic back
Durability IP64 dust & splash resistance
Colors Prism Crush Black and Prism Crush Blue Black, Gray, Light Blue
Our pick: SAMSUNG Galaxy A18
The SAMSUNG Galaxy A18 has a larger display. It also has better build materials and is more durable, while the Samsung Galaxy A51 is lighter.
Performance
Chipset Samsung Exynos 9611 Exynos 1610 (5 nm)
CPU Octa Core CPU
4x Cortex-A73 @ 2.3GHz & 4x Cortex-A53 @ 1.7GHz
Octa Core CPU
2x Cortex-A78 @ 2.4GHz & 6x Cortex-A55 @ 2.0GHz
GPU Mali-G72 MP3 Mali-G68 MP4
RAM 6 GB 4GB or 6GB of RAM
Storage 128GB 64GB, 128GB, or 256GB
Expansion 512GB via microSD 2TB via microSD
OS Android 9.0 Pie with One UI Android 17 with One UI 9; up to 6 major OS updates
Our pick: SAMSUNG Galaxy A18
The SAMSUNG Galaxy A18 has better performance.
Cameras
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
Triple Cameras:
50MP Main Camera (f/1.8 Aperture, Autofocus)
5MP Ultrawide (f/2.2 Aperture)
2MP Macro (f/2.4 Aperture)
-LED Flash
-Up to 1080p@30fps video recording
Front Camera 32 Megapixels (f/2.2 Aperture)
13 Megapixels (f/2.0 Aperture)
- Up to 1080p@30fps video recording
Our pick: Samsung Galaxy A51

Samsung Galaxy A51 has a slight camera advantage with a wider 123° ultrawide camera. Meanwhile, SAMSUNG Galaxy A18 offers a wider-aperture main camera.

The two are still closely matched overall, and actual image quality may depend more on camera processing and real-world performance.
Connectivity
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)
SIM Dual SIM (Nano-SIM) Dual SIM (Nano-SIM)
NFC Yes Yes
Bluetooth Bluetooth 5.0 Bluetooth 5.3
Infrared
Location A-GPS, GLONASS, Galileo 7 BeiDou GPS, GLONASS, GALILEO, BeiDou, QZSS
Our pick: SAMSUNG Galaxy A18
The SAMSUNG Galaxy A18 has newer Bluetooth.
Audio and Features
USB OTG Yes Yes
USB USB Type-C USB Type-C
3.5mm Audio Jack Yes No
Audio Enhancement None None
FM Radio Yes No
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
Our pick: Samsung Galaxy A51
Based on the specs, it has a 3.5mm audio jack.
Battery and Charging
Battery 4000 mAh Li-Po Battery (Non-removable) 5000 mAh (Non-removable)
Charging 15W Fast Charging 25W Charging rate (50% in 30 minutes)
Our pick: SAMSUNG Galaxy A18
The SAMSUNG Galaxy A18 has a larger battery capacity and faster charging.
Price and Availability
Price 17,990.00 - Official Price in the Philippines No official price in the Philippines yet.
Release Date June 27, 2020 September 16, 2026
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