Upgrade or downgrade? A Deep Dive into the Oppo A18 vs. Oppo A55 Differences

By ANAS KHAN 5 Min Read

In the fast-paced world of smartphones, choosing the right device is crucial. This article delves into the Oppo A18 and A55, examining their differences to help you make an informed decision. Upgrade or downgrade? A deep dive into the Oppo A18 vs. Oppo A55 differences will guide you through the features of these devices.


NameOppo A18Oppo A55
Launch Date27 Sept 20231 Oct 2021
ColorsGlowing Black, Glowing Blue


Oppo A18 vs. Oppo A55
Display Size6.56 Inches6.51 Inches
Display TypeIPS LCD, 720 nits (peak)LCD, 480 nits (typ), 550 nits (peak)
Resolution720 x 1612 pixels720 x 1600 pixels
Refresh Rate90Hz60Hz
Display ProtectionNEG T2X-1
Aspect Ratio20:920:9
Features84.2% (screen to body ratio), 269 ppi


Operating SystemAndroid 13, ColorOS 13.1Android 11, ColorOS 11.1
ProcessorMediaTek Helio G85 (12nm)MediaTek Helio G35 (12 nm)
CPUOcta-core (2×2.0 GHz Cortex-A75 & 6×1.8 GHz Cortex-A55)
GPUMali-G52 MC2


Ram4GB4GB, 6GB
Ram TypeLPDDR4x
Storage64GB, 128GB64GB, 128GB
Storage TypeeMMC 5.1
SD Card SlotYesYes


Oppo A18 vs. Oppo A55
TypeDual CameraTriple Camera
Main8 MP, f/2.0, AF50 MP, f/1.8 26mm (wide)
Macro2 MP, f/2.4
Depth2 MP, f/2.42 MP, f/2.4

Front Camera

TypeSingle CameraSingle Camera
Selfie5 MP, f/2.216 MP, f/2.0


Capacity5000 mAh5000 mAh
Battery TechnologyLi-Po, non-removableLi-Po
Charging Speed18W
USB TypeType C, USB 2.0, OTGType C
Wireless ChargingNoNo


SimDual SimDual Sim
Sim TypeDual SIM (Nano-SIM, dual stand-by)


Wi-FiWiFi 5WiFi 5


Headphone JackYesYes


Fingerprint TypeCapacitive Fingerprint ScannerCapacitive Fingerprint Scanner
Fingerprint PositionSide-MountedSide-Mounted
Face Unlock2D Face Unlock2D Face Unlock


Dimensions163.7 x 75 x 8.2 mm163.6 x 75.7 x 8.4 mm
Weight188 g193 g
FramePlastic FramePlastic Frame
BackPlastic BackPlastic Back
IP RatingIP54No


Oppo A18 and A55 are two smartphones launched in 2021 and 2023, respectively. The Oppo A18 is a dual-camera smartphone with a 5000 mAh battery and Li-Po technology. It has a 720 x 1612 pixels display with a resolution of 720 x 1600 pixels. The device has a 20:9 aspect ratio and a resolution of 84.2%. The Oppo A18 has a MediaTek Helio G85 (12nm) processor and a MediaTek Helio G35 (12 nm) GPU. It has a RAM of 4GB, 6GB, 64GB, and 128GB, and a storage type of eMMC 5.1. The Oppo A18 and A55 have different features, such as dual cameras, dual SIM, Wi-Fi, Bluetooth, NFC, GPS, audio, a headphone jack, and a biometric fingerprint scanner.


Is the OPPO A55 waterproof?

This gadget can withstand both dust and water. Even when immersed, water-resistant electronics can withstand strong water jets and other water-penetrating threats.

Is the Oppo A55 4G or 5G?

Wireless LAN, GPS, Bluetooth v5.10, USB on-the-go, USB Type-C, 3G, 4G, and 5G (with 4G active on both SIM cards) are some of the connectivity choices available on the Oppo A55 5G.

Does the Oppo A55 have a slow motion?

There are three cameras on the back of the Oppo A55 5G: a primary 13MP shooter with an f/2.2 aperture, a secondary 2MP macro shooter with an f/2.4 aperture, and a front-facing 2MP camera with an f/2.4 aperture. Night scenes, time-lapse, slow motion, and more may all be captured using the back camera.

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