Infinix SMART 20 128GB 4GB RAM
The Infinix SMART 20 is designed for everyday communication, entertainment and mobile productivity. It combines a large 6.78-inch display with 128GB internal storage, 4GB RAM and a MediaTek Helio G81 Ultimate processor.
Whether you need a smartphone for browsing, social media, online communication, photography or video streaming, the SMART 20 offers practical features for everyday mobile use.
6.78-Inch 120Hz Display
The 6.78-inch HD+ IPS LCD display provides a spacious viewing area for browsing websites, watching videos, reading and using social media applications.
With a resolution of 720 × 1576 pixels and a refresh rate of up to 120Hz, the screen supports smoother scrolling and navigation in compatible applications.
Its large punch-hole display also provides a comfortable viewing experience for everyday entertainment and mobile activities.
Everyday Performance and Storage
The MediaTek Helio G81 Ultimate octa-core processor powers the Infinix SMART 20, supporting everyday activities such as messaging, browsing, streaming and compatible mobile applications.
With 4GB RAM and 128GB internal storage, you have room for your applications, photos, videos, documents and other personal files.
The device also supports expandable storage via microSD cards of up to 2TB, allowing you to increase available storage when needed.
The phone supports memory expansion features of up to 8GB, combining physical RAM with virtual memory where supported. Actual available storage will be lower because the operating system and pre-installed applications occupy part of the device’s storage.
8MP Rear and Front Cameras
The Infinix SMART 20 features an 8MP rear camera with autofocus for everyday photography, including capturing people, places and memorable moments.
Its 8MP front-facing camera supports selfies, video calls and online communication.
Camera features include portrait, panorama, time-lapse, night and document photography modes. Video recording supports up to 2K at 30fps, depending on the selected camera and recording mode.
Actual image quality varies depending on lighting and shooting conditions.
5,200mAh Battery and Charging
The SMART 20 comes with a 5,200mAh battery designed to support everyday activities such as browsing, communication, streaming and application use.
It includes a 10W charger in the box and supports charging speeds of up to 15W with a compatible charger.
The battery capacity provides practical power for daily smartphone use, while actual battery life depends on screen brightness, network conditions, applications and usage habits.
Android 16 and XOS 16
The Infinix SMART 20 runs Android 16 with Infinix’s XOS 16 interface, providing access to compatible Android applications and everyday smartphone features.
The software environment supports communication, entertainment, productivity and personalisation features.
Available software features and future updates depend on the manufacturer’s regional software and update policy.
4G Connectivity and Dual SIM
The SMART 20 supports 4G LTE connectivity, allowing you to browse the internet, stream content and communicate through supported mobile networks.
Dual Nano-SIM support allows you to use two compatible SIM cards in one device, making it convenient to manage personal and work communication.
Additional connectivity features include Wi-Fi, Bluetooth, GPS and USB Type-C. Network availability and performance depend on your mobile operator and coverage area.
Design and IP64 Protection
The Infinix SMART 20 features a slim design measuring approximately 167.7 × 78.8 × 7.7 mm.
Its IP64 rating indicates protection against dust and water splashes under specified testing conditions. This does not make the smartphone waterproof or suitable for immersion in water.
Available colours include Shadow Black, Polaris Titanium, Sunlike Orange and Cloudline Blue, subject to stock availability.
Technical Specifications
- Brand: Infinix
- Model: SMART 20
- Model Number: X6840
- RAM: 4GB
- Internal Storage: 128GB
- Expandable Storage: microSD, up to 2TB
- Display: 6.78-inch IPS LCD
- Resolution: 720 × 1576 pixels (HD+)
- Refresh Rate: Up to 120Hz
- Processor: MediaTek Helio G81 Ultimate
- CPU: Octa-core
- GPU: Mali-G52
- Rear Camera: 8MP with autofocus
- Front Camera: 8MP
- Battery: 5,200mAh
- Charging: 10W charger included; supports up to 15W
- Operating System: Android 16 with XOS 16
- Network: 4G LTE / 3G / 2G
- SIM: Dual Nano-SIM
- Protection: IP64 dust and splash resistance
- Charging Port: USB Type-C
- Audio: DTS audio processing and 3.5mm headphone jack
- Dimensions: 167.7 × 78.8 × 7.7 mm
- Approximate Weight: 193 g
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