Infinix SMART 20 Smartphone
Infinix SMART 20 Smartphone - 4 + 64 / Shadow Black is backordered and will ship as soon as it is back in stock.
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Care information
Care information
Exchange available within 7 days of receipt if conditions apply
1. The warranty applies only in cases where the product is damaged due to a malfunction resulting from a manufacturing defect
2. Dead pixel warranty applies for Laptop products and computer monitors with 5 or more dead pixels
3. The store delivered the wrong product
Authentic product with official warranty:
Payment
Payment
Payment
- Bank Deposit
- Full Payment via Credit Card (All Major Banks Accepted)
- Cash on Delivery (COD)
Delivery and Shipping
Delivery and Shipping
Delivery
- Express Delivery within 3 Hours Service fee 300 THB
(Available only in Bangkok, Metropolitan Area, and Chiang Mai city) - Domestic shipping packed and delivered by Best Express
- Pick up your order at the nearest branch
Infinix SMART 20 4+64GB / 4+128GB 6.78" 120Hz 4G Smartphone
Infinix-SMART-20-Series
- Model: Infinix SMART 20 (X6840)
- RAM: 4GB LPDDR4X
- ROM: 64GB / 128GB eMMC
- Chipset: MediaTek Helio G81 Ultimate
- CPU: Octa-Core up to 2.0GHz
- GPU: Mali-G52
- Screen Size: 6.78 inches IPS LCD
- Resolution: HD+ 720 x 1576 pixels
- Refresh Rate: Up to 120Hz
- Brightness: Up to 700 nits (HBM)
- Rear Camera: 8MP with Dual Flash
- Front Camera: 8MP
- Video Recording: Up to 2K 30fps
- Operating System: XOS 16 on Android 16
- Network: 4G / 3G / 2G
- SIM: Supports 2 Nano SIM + MicroSD
- Connectivity: Wi-Fi 802.11 a/b/g/n/ac, Bluetooth, GPS
- Ports: USB Type-C, USB OTG, and 3.5mm headphone jack
- External Memory: Supports MicroSD up to 2TB
- Battery: 5,200mAh
- Charging: Supports 15W with 10W adapter
- Reverse Charging: Supports 5W
- Audio System: DTS
- Water and Dust Resistance: IP64
- Colors: Shadow Black / Polaris Titanium / Cloudline Blue / Sunlike Orange
- Dimensions: 167.7 x 78.8 x 7.7 mm
- Warranty: 1-year official warranty
Infinix SMART 20
6.78-inch display with up to 120Hz refresh rate

Experience smooth display on the 6.78-inch IPS LCD screen with HD+ 720 x 1576 pixel resolution, supporting up to 120Hz refresh rate, ideal for watching videos, browsing social media, and everyday use.
Performance from MediaTek Helio G81 Ultimate
Powered by the MediaTek Helio G81 Ultimate chipset with an Octa-Core CPU up to 2.0GHz and Mali-G52 GPU, supporting general use, content streaming, social media, and everyday applications.

4GB RAM with choice of 64GB or 128GB storage
Supports 4GB LPDDR4X RAM with storage options of 64GB and 128GB eMMC to choose from based on usage, and can expand storage with MicroSD up to 2TB for photos, videos, applications, and various files.

8MP Camera with 2K video recording support
Comes with an 8MP rear camera with Dual Flash and an 8MP front camera, supporting video recording up to 2K 30fps, making it convenient for everyday photo and video capture.

5,200mAh Battery with 15W charging support
5,200mAh battery capacity supports up to 15W charging and 5W Reverse Charging, allowing for continuous smartphone use and the ability to share power with other devices.

Supports 2 Nano SIMs and 4G Network
Supports 2 Nano SIMs with MicroSD and 4G / 3G / 2G network connectivity, suitable for users who need to use multiple phone numbers or expand internal storage.
Complete connectivity for daily use
Supports Wi-Fi 802.11 a/b/g/n/ac, Bluetooth, and GPS, along with USB Type-C port, USB OTG, and 3.5mm headphone jack, supporting a variety of device and accessory connections.

XOS 16 on Android 16
Comes with XOS 16 operating system on Android 16, offering a modern user experience with features and an interface designed for Infinix smartphones.

Slim design with IP64 standard
The device is only 7.7mm thin with IP64 standard, providing protection against dust and water splashes, suitable for everyday use.
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