The phones feature Android 9 (Pie) with Samsung's proprietary One UI skin, 128 GB of internal storage, and a 4500 mAh battery.

[2] The phone also has a dual-SIM model, 3.5 mm headphone jack, and supports, 25 W Super Fast Charger with a USB C cable.

[8] [9] On December 2, 2020, Samsung released a list of numerous Galaxy devices that would be eligible for the One UI 3-Android 11 upgrade, of which the A70 was included.

The phone also features super steady video like the Samsung Galaxy Note 10 and a night mode.

Nathan Spendelow and Matt Breen of Expert Reviews gave a score of 5 out of 5, calling it Samsung's best mid-range phone and praising its triple camera array, 4500mah battery, and display, while critiquing the slower performance compared to the A50.