The Samsung Galaxy A03 is a series of Android smartphones manufactured by Samsung Electronics that includes the base A03, A03s and A03 Core. The A03 was first announced on November 25, 2021. The A03s was first announced on August 18, 2021, followed by the Core variant on December 6, 2021.

Specifications

Design All models use a plastic back and frame along with a glass front. Galaxy A03 CoreGalaxy A03Galaxy A03s

Hardware

Display All three devices have a 6.5-inch PLS TFT capacitive touchscreen with a resolution of 1600×720 pixels.

Camera The Galaxy A03 has a dual rear camera setup: a 48 MP wide lens and th 2 MP depth sensor. The main camera can record video up at 1080p @ 30 fps. A single 5 MP front-facing camera is present in a notch.

The Galaxy A03 Core only has a single 8 MP rear camera and 5 MP front-facing camera. The Galaxy A03s have a triple rear camera setup: 13 MP wide, macro and depth sensors with 2 MP each.

Processor and Memory The Galaxy A03 uses the UNISOC T606 octa-core processor, while the Core and "s" variants use the UNISOC SC9863A and MediaTek Helio P35, respectively.

RAM options include 3 GB or 4 GB, with storage ranging from 32 GB to 128 GB for the A03. The "s" variant offers the same RAM options but is limited to 32 GB or 64 GB of storage. The Core variant is available only with 2 GB of RAM and 32 GB of storage. All devices uses the same eMMC storage type. All devices also include a microSDXC slot, allowing users to expand their storage capacity up to 1 TB.

Battery All variants have a Li-Po 5000 mAh non-removable battery. Only the A03s have the 15W Fast Charging support.

Software The Galaxy A03 & A03s originally came with Android 11 and One UI Core 3.1 pre-installed. The Galaxy A03s have the same pre-installed OS and One UI version as with the other devices, albeit it uses the Android Go edition of the OS. Like its predecessors, it is only slated to receive 2 OS upgrades and 4 years of security updates. Pre-installed OSOS Upgrades historyEnd of support1st2ndA03 CoreAndroid 11(Android Go)(One UI Core 3.1)Android 12(Android Go)(One UI Core 4.0)March 2023Android 13(Android Go)(One UI Core 5.1)September 2023January 2026A03Android 11(One UI Core 3.1)Android 12(One UI Core 4.1)August 2022Android 13(One UI Core 5.0)January 2023February 2026A03sAndroid 12(One UI Core 4.1)July 2022Android 13(One UI Core 5.0)December 2022October 2025

References