Upgrade your mobile experience with the all-new Infinix Smart 20, a perfect blend of style, performance, and durability. Engineered with an ultra-slim 7.7mm profile, this budget-friendly powerhouse delivers fluid visuals, long-lasting power, and premium features usually reserved for flagship devices. Whether you are scrolling social media, streaming your favorite content, or staying connected on the go, the Smart 20 keeps up with your lifestyle effortlessly.
Key Features
- Ultra-Smooth 120Hz 6.78" Display: Enjoy fluid animations and seamless scrolling on a massive HD+ screen featuring an interactive Dynamic Bar for real-time notifications.
- MediaTek Helio G81 Ultimate Processor: Experience snappy, reliable everyday performance optimized for multitasking and media consumption.
- Massive 5200mAh Battery: Power through your day with confidence. Supports 15W fast charging and 5W reverse charging to power up your other small accessories.
- 7.7mm Sleek, Drop-Resistant Design: A remarkably slim and premium-feeling chassis built to survive life's accidents with 1.5-meter drop resistance and an IP64 water and dust protection rating.
- UltraLink Free Offline Communication: Stay connected with walkie-talkie-style short-range communication up to 1km without any cellular network.
Official Overview & Review
Technical Specifications
| Specification | Details |
|---|---|
| Model | X6840 / Smart 20 |
| Processor | MediaTek Helio G81 Ultimate (Octa-Core, up to 2.0 GHz) |
| GPU | Mali-G52 MC2 |
| Display | 6.78-inch IPS LCD, 120Hz Refresh Rate, 700 nits Peak Brightness |
| Resolution | HD+ (720 x 1576 pixels), 19.7:9 Aspect Ratio |
| Memory (RAM) | 4GB LPDDR4X (Extended RAM support up to an additional 4GB via MemFusion) |
| Storage (ROM) | 64GB / 128GB eMMC 5.1 (Expandable up to 2TB with dedicated MicroSD) |
| Rear Camera | 8MP AI Camera with f/2.0 Aperture & Dual-LED Flash |
| Front Camera | 8MP Selfie Camera with f/2.0 Aperture |
| Battery & Charging | 5200mAh Capacity, 15W Wired Fast Charging, 5W Reverse Charging |
| Operating System | XOS 16 based on Android 16 |
| Durability Ratings | IP64 Dust & Water Resistant, 1.5m Drop Testing Approved |
| Dimensions & Weight | 167.7 x 78.8 x 7.7 mm | 189 grams |
| Connectivity | Dual 4G VoLTE, Wi-Fi 5 (Dual-band), Bluetooth 5.2, USB Type-C, 3.5mm Audio Jack |
| Biometrics | Side-mounted Fingerprint Sensor |
Frequently Asked Questions (FAQ)
Does the Infinix Smart 20 support 5G network connectivity?
No, the standard Infinix Smart 20 model features dual-SIM 4G VoLTE connectivity powered by the MediaTek Helio G81 Ultimate processor. It delivers exceptionally stable and fast 4G LTE internet speeds but does not support 5G cellular bands.
What is the battery life expectancy of the Infinix Smart 20?
Thanks to its massive 5200mAh non-removable battery and an energy-efficient 12nm chipset, the Infinix Smart 20 easily handles up to 1.5 to 2 days of moderate daily usage (web browsing, texting, streaming) on a single charge. It also features 15W fast charging to get you back up and running quickly.
Can I expand the storage capacity on the 64GB and 128GB models?
Yes, absolutely. Both the 64GB and 128GB variants of the phone come equipped with a dedicated MicroSD card slot. This allows you to expand your internal storage up to an additional 2TB without having to sacrifice your secondary Nano-SIM card slot.
What does the IP64 rating mean for this phone?
An IP64 rating means the device is completely sealed against harmful dust ingress and is highly resistant to water splashes from any direction. Coupled with its certified 1.5-meter drop protection, it is built to handle everyday accidental spills and drops safely.
What is the UltraLink feature on the Infinix Smart 20?
UltraLink is Infinix's proprietary offline communication feature. It functions like a local walkie-talkie, allowing wireless short-range voice communication between compatible Infinix devices over a distance of up to 1km without relying on cellular data, Wi-Fi, or network reception.