Infinix Smart 20 (4GB RAM + 128GB)
Infinix Smart 20 (4GB RAM + 128GB) is an Android 16 Smartphone powered by Mediatek G81 Ultimate with 4 GB RAM and 128 GB storage. It has a 6.78 inches IPS LCD display with 120 Hz refresh rate. It features a 8 MP rear camera and a 8 MP front camera. It packs a 5200 mAh Battery with 15W Fast Charging. Notable features include IP64 Rating, Expandable Storage, 3.5mm Headphone Jack, USB on-the-go and Fingerprint Sensor.
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Variants
Features
- Dual Sim, 4G, Wi-Fi, IR Blaster
- Helio G81 Ultimate, Octa Core, 2 GHz Processor
- 4 GB RAM, 128 GB inbuilt
- 5200 mAh Battery with 15W Fast Charging
- 6.78 inches, 720 x 1576 px, 120 Hz Display with Punch Hole
- 8 MP Rear & 8 MP Front Camera
- Memory Card Supported, upto 2 TB
- Android v16
Infinix Smart 20 (4GB RAM + 128GB) Specs
- Android v16Good
- Thickness: 7.7 mmSlim
- 189 gLight
- Side Fingerprint Sensor
- 6.78 inch, IPS LCD ScreenLarge
- 720 x 1576 pixelsPoor
- 259 ppiPoor
- 120 Hz Refresh Rate, 240 Hz Touch Sampling Rate
- Punch Hole Display
- 8 MP Rear CameraAverage
- 1440p @ 30 fps QHD Video Recording
- 8 MP Front CameraAverage
- Mediatek Helio G81 Ultimate Chipset
- 2 GHz, Octa Core ProcessorSlow
- 4 GB RAM + 4 GB Virtual RAMAverage
- 128 GB Inbuilt MemoryAverage
- Dedicated Memory Card Slot, upto 2 TB
- 4G
- Bluetooth, WiFi
- USB-C v2.0
- IR Blaster
- 5200 mAh BatteryAverage
- 15W Fast Charging
- 5W Reverse Charging
- Not Water Proof
Infinix Smart 20 (4GB RAM + 128GB) Prices
Infinix Smart 20 (4GB RAM + 128GB) Price History
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| Model | X6840, SMART 20 |
| Sim Type | Dual Sim |
| Dual Sim | Yes |
| Sim Size | Nano SIM |
| Device Type | Smartphone |
| Release Date | June 08, 2026 |
| In The Box | 1 X Handset, 1 X 10W Adaptor, 1 X USB Type-C Cable, 1 X Soft Film, 1 X TPU Case, 1 X SIM Ejector pin, 1 X Quick Start Guide, 1 X Warranty Card |
| Dimensions | 78.8 x 167.7 x 7.7 mm |
| Weight | 189 g |
| Colors | Shadow Black/Polaris Titanium/ Sunlike Orange/Cloudline Blue |
| Type | Color IPS LCD Screen (16M Colors) |
| Touch | Yes, 240 Hz Touch Sampling Rate |
| Size | 6.78 inches, 720 x 1576 pixels, 120 Hz |
| Aspect Ratio | 19.7:9 |
| PPI | ~ 259 PPI |
| Brightness | 560 nits (Typical), 700 nits (HBM) |
| Notch | Yes, Punch Hole |
| RAM | 4 GB |
| Expandable RAM | Upto 4 GB Extra Virtual RAM |
| Storage | 128 GB |
| Storage Type | eMMC |
| Card Slot | Yes, upto 2 TB |
| GPRS | Yes |
| EDGE | Yes |
| 3G | Yes |
| 4G | Yes |
| 5G | No |
| Wifi | Yes, with wifi-hotspot |
| Wifi Version | Wi-Fi 802.11 (a/b/g/n/ac) |
| Bluetooth | Yes |
| USB | Yes, USB-C v2.0 |
| USB Features | USB Tethering, USB on-the-go, USB Charging, USB Storage |
| IR Blaster | Yes |
| GPS | Yes |
| Fingerprint Sensor | Yes, Side |
| Sensors | G-sensor, E-compass, Gyroscope (By Software), Light Sensor, Proximity Sensor, Motor, IR Blaster |
| 3.5mm Headphone Jack | Yes |
| AI Features | One-Tap Infinix AI, AI Voice Assistant- Folax, AI Wallpaper Generator |
| Splash Resistant | Yes |
| IP Rating | IP64 |
| Dust Resistant | Yes |
| Extra Features | Always on Display "limited time", Dynamic Bar, Game Mode, Floating Windows, Split-screen Apps, Call Noise Cancellation, Ultra Link |
| Rear Camera | 8 MP (Main) 1/4'' sensor, 1.12um, AF |
| Auto Focus | Yes |
| Features | AI Cam, Video, Dual Video, Portrait, Time-Lapse, Super Night, Pro, Panorama, Documents |
| Video Recording | 1440p @ 30 fps QHD, 1080p @ 30 fps FHD |
| Flash | Yes, Dual LED |
| Front Camera | 8 MP 1/4'' sensor, 1.12um, AF Punch Hole |
| Front Video Recording | 1440p @ 30 fps QHD, 1080p @ 30 fps FHD |
| OS | Android v16 |
| Custom UI | XOS16 |
| Chipset | Mediatek Helio G81 Ultimate |
| CPU | 2 GHz, Octa Core Processor |
| GPU | Mali G52 |
| Java | No |
| Browser | Yes |
| Yes | |
| Music | MP3, FLAC, OGG WAV, AAC, AMR, AWB, APE, MIDI |
| Video | MP4, MKV, TS, 3GP, WEBM |
| FM Radio | Yes |
| Document Reader | Yes |
| Type | Non-Removable Battery |
| Size | 5200 mAh |
| Fast Charging | Yes, 15W |
| Reverse Charging | Yes, 5W |
| StandBy Time | 38 days |