OPPO A18 4GB RAM 128GB Storage / 6.56-inch 90Hz display / MediaTek Helio G85 / 8MP Cameras / 5000mAh Battery.
The OPPO A18 (4GB RAM | 128GB Storage) is a sleek, budget-friendly smartphone designed to deliver long-lasting performance, smooth daily operation, and everyday durability. Powered by the reliable MediaTek Helio G85 octa-core processor, it handles essential social apps, web browsing, and multi-tasking with ease. This configuration combines 4GB of physical LPDDR4X RAM—expandable by up to 4GB through OPPO’s RAM Expansion technology—with 128GB of internal storage. Featuring a bright 6.56-inch 90Hz Sunlight Display with 720 nits peak brightness and backed by a robust 5000mAh long-lasting battery, the OPPO A18 is built to keep you connected all day long.
- MediaTek Helio G85 Octa-Core: Efficient 12nm processor delivering reliable daily performance and smooth app operation.
- Massive 5000mAh Battery: Built for extended multi-day battery endurance to power through work and entertainment.
- 6.56″ 90Hz Sunlight Display: High-brightness LCD screen offering smooth scrolling and 720 nits peak brightness for clear outdoor visibility.
- Up to 8GB Dynamic RAM: 4GB physical RAM supported by 4GB Extended RAM for improved background application retention.
- OPPO Glow & IP54 Rating: Fingerprint-resistant matte design with IP54 dust and splash resistance for daily durability.
Technical Specifications
| Feature | Specification |
|---|---|
| Brand / Series | OPPO / A Series |
| Model Name | A18 (CPH2591) |
| Processor / Chipset | MediaTek Helio G85 (12nm Octa-Core: 2x 2.0 GHz Cortex-A75 & 6x 1.8 GHz Cortex-A55) |
| Graphics Processor (GPU) | ARM Mali-G52 MC2 |
| System RAM | 4 GB LPDDR4X (+ up to 4 GB Extended RAM) |
| Internal Storage (ROM) | 128 GB eMMC 5.1 |
| Expandable Storage | Supported via Dedicated microSDXC Card Slot (up to 1TB) |
| Display Screen | 6.56-inch HD+ IPS LCD Sunlight Display |
| Display Resolution | 1612 x 720 Pixels (~269 ppi density) |
| Screen Refresh & Touch Rate | 90Hz Refresh Rate / 90Hz Touch Sampling Rate (720 nits Peak Brightness) |
| Main Rear Camera Setup | Dual Setup: 8 MP Primary Camera (f/2.0, AF) + 2 MP Depth Sensor (f/2.4) with LED Flash |
| Front / Selfie Camera | 5 MP Front Camera (f/2.2) |
| Video Recording Capabilities | Rear & Front: 1080p @ 30fps, 720p @ 30fps |
| Battery Capacity | 5000 mAh (typical) Non-Removable Li-Po |
| Charging Protocol | 10W Standard Charging via USB Type-C (2.0) |
| Operating System | ColorOS 13.1 based on Android 13 |
| SIM & Network Architecture | Dual SIM (Nano-SIM, Dual Stand-by) / 4G LTE, VoLTE |
| Biometric Security | Side-Mounted Fingerprint Sensor & AI Face Unlock |
| Audio Hardware | Single Loudspeaker with 300% Ultra Volume Mode / 3.5mm Headphone Jack |
| Wireless Connectivity | Dual-Band Wi-Fi (802.11 a/b/g/n/ac), Bluetooth 5.3, GPS, BDS, GLONASS, GALILEO |
| Durability / Ingress Protection | IP54 Dust & Splash Resistance |
| Dimensions & Weight | 163.74 x 75.03 x 8.16 mm / ~188 g |
| Warranty | One-year brand warranty. |
Frequently Asked Questions
Which processor does this product use?
Processor / Chipset: MediaTek Helio G85 (12nm Octa-Core: 2x 2.0 GHz Cortex-A75 & 6x 1.8 GHz Cortex-A55).
Which graphics hardware is included?
Graphics Processor (GPU): ARM Mali-G52 MC2.
What memory specification is listed?
System RAM: 4 GB LPDDR4X (+ up to 4 GB Extended RAM).Extended memory uses storage space and is not equivalent to physical RAM.
What storage is available?
Internal Storage (ROM): 128 GB eMMC 5.1.
What are the display specifications?
Display Screen: 6.56-inch HD+ IPS LCD Sunlight Display.
What battery or energy specifications are listed?
Battery Capacity: 5000 mAh (typical) Non-Removable Li-Po.
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