The Galaxy A51 is the successor mobile to the Galaxy A50. The smartphone was announced by Samsung in January with a four-way camera with a macro lens. The Motorola One Action arrived in 2019 as a Motorola commitment with a triple set, including a lens similar to GoPro. In the following lines, learn about the similarities and differences of the technical sheet, as well as current prices.

Both share specifications such as screen size up to 6.5 inches, battery capacity of 4,000 mAh and Android 10. The A51 is available in blue, black and white for $349. The One Action comes in denim blue and polar white with the current price of $249.

Motorola One Action vs Galaxy A51 Features

SpecificationsMotorola One ActionGalaxy A51
LaunchAugust 2019January 2020
Current price$249$349
Screen6.3 inches6.5 inches
Screen resolutionFull HD + (2520 x 1080 pixels)Full HD + (2400 x 1080 pixels)
ProcessorExynos 9609 (octa-core up to 2.2 GHz)octa-core up to 2.3 GHz
RAM memory4 GB6 GB
Storage128 GB128 GB
Memory cardYes, microSDYes, microSD
Back cameratriple, 16, 12 and 5 MPquadruple, 48, 12, 5 and 5 MP
Frontal camera12 megapixels32 megapixels
Drums3,500 mAh4,000 mAh
Operational systemAndroid 9 (Pie) (Android One)Android 10
Dimensions and weight160.1 x 71.2 x 9.2 mm; 181 grams158.5 x 73.6 x 7.9 mm; 172 grams
Available colorsdenim blue and polar whiteblue, black and white
Source: Samsung and Motorola
Mototrola One Action

Screen and Design

Both models have no notch, just a hole that houses the selfie camera inside the screen itself. Both are on top of the devices. However, on the A51 the hole is centralized and on One Action the notch is positioned on the left side.

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The A51 has a 6.5-inch Super AMOLED panel with Full HD+ resolution (2400 x 1080 pixels), which is slightly higher than the Action display. The Motorola cell phone comes with 6.3 inches and also Full HD+ resolution (2520 x 1080 pixels).

They also differ at the back, while Motorola keeps the fingerprint reader at the back, Galaxy brings the biometric sensor integrated into the screen.

Galaxy A51


One of the highlights of the Galaxy A51 is the 5 MP macro lens (f/2.4) that makes up the quadruple set. The South Korean phone also has a 48 MP (f/2.0) wide-angle, 12 MP (f/2.2) ultra angle and a 5 MP depth sensor.

The Action has a special lens in GoPro style. It has 16 MP and is known as the action camera, which is an ultra-wide lens designed to record video in radical motion, but without shaking. It also has a 12 MP main camera and a 5 MP depth lens.

Motorola One Action

The Motorola smartphone can still record widescreen videos even when positioned vertically.

For the selfies, the A51 comes with a 32 MP sensor, while One Action comes with up to 12 MP images with the front camera.

Performance and storage

Both models feature a processor manufactured by Samsung. The A51 has an eight-core chip that reaches up to 2.3 GHz speed. The successor to the A50 still has a larger RAM, with 6 GB. The Motorola cell phone has the Exynos 9609, which has eight cores up to 2.2 GHz and 4 GB RAM.

With these settings, the A51 should offer a more fluid performance and with fewer crashes than Action. Both have 128 GB of storage and have microSD memory card input.

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The Galaxy A51 outperforms Action in terms of battery capacity. The Samsung smartphone has a 4,000 mAh component, which is larger than the 3,500 mAh found on Motorola. But both phones are expected to provide power for the entire day and rely on fast charging technology. In Action, the TurboPower charger offers 7 hours of battery life with a charging time of only 15 minutes.

Android and additional features

The Galaxy A51 comes with Android 10 that features Dark Mode and system enhancement, One UI 2.0. Action is part of the Android One program, which is promises faster updates. Although it comes from the factory with a cleaner version of Android 9 (Pie), Motorola’s phone can already be upgraded to Android 10.

Also, both devices have Bluetooth 5.0 and USB-C connectivity. Motorola also features Moto Actions, which allows the user to trigger applications with specific hand movements.

Price and Availability

Samsung launched the A51 in January and for now, the device is sold for $349 on Samsung Official store. The Motorola One Action arrived in August 2019, but today can be found for $249 on Motorola Official store. The values are subject to change.

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