Both models have a 6.5-inch Neo-Display with a 90Hz screen refresh rate, and are built atop a Snapdragon 460 octa-core processor from Qualcomm. The battery is on the large side at 5000mAh. Both devices also have a touch sampling rate of 120Hz.
Both the A53s, which retails for $349, and the A53, which costs $299, will have 18W fast charging and AI triple camera setups.
The release of these two 4G devices comes after OPPO released three 5G-capable models in June – the Find X2 Lite, the Find X2 Neo and the Find X2 Pro. Another 5G model, the Reno 5G 10x Zoom, hit Australia the same month.
The A53s Electric Black model.
OPPO Australia managing director Michael Tran claimed the A53s and the A53 were pushing the boundaries for entry-level smartphones.
"At OPPO, we believe affordability is on par with cutting-edge technology," he said.
"The A53s and A53 demonstrate yet another harmonisation of these qualities, packing consumers' most desired features into a sleek body with a premium feel."
Both the A53s and A53 have multipurpose AI Triple Camera setups, consisting of a 13MP main camera + 2MP depth camera + 2MP macro camera. The macro lens allows zooming into details of objects 4cm away.
A side view of the A53 in Mint Cream.
Both devices also have a 8MP front camera and Intelligent Beautification algorithms, to capture natural-looking selfies.
Both models have Super Dual Speakers combined with Dirac 2.0, offering app-specific sound effects.
The A53 and A53s will go on sale from today with the former available in Fancy Blue and Electric Black at Telstra, JB Hi-Fi, Woolworths, Mobileciti, Bing Lee and Amazon.
The A53 will be available in Mint Cream and Electric Black at JB Hi-Fi, Woolworths, Mobileciti, Bing Lee and Amazon.
The A53 Electric Black model. All images supplied by OPPO Australia