available
Updated: Oct 2026
Infinix Smart 20
Price not available
Status: available
MobGadgets reviews combine verified specifications, pricing context, and comparison analysis. Hands-on testing is stated when available. Review policy.
Should you buy the Infinix Smart 20?
Reasons to Buy
- 5,200 mAh battery capacity
- 6.78" IPS LCD, 120Hz, 700 nits (HBM) display for media and everyday use
- Mediatek Helio G81 Ultimate (12 nm) platform for daily performance
Reasons to Avoid
- Durability and protection details should be confirmed before purchase.
Full Specifications
Launch
| Announced | 2026-03-04 |
|---|---|
| Released | 2026-03 |
| Device type | Smartphone |
| Model number | X6840, X6840B |
Body
| Dimensions | 167.7 x 78.8 x 7.7 mm |
|---|---|
| Build | Glass front, plastic back, plastic frame |
| SIM | Nano-SIM + Nano-SIM |
Display
| Type | IPS LCD, 120Hz, 700 nits (HBM) |
|---|---|
| Size | 6.78 inches |
| Resolution | 720 x 1576 pixels |
| Refresh rate | 120 Hz |
| Brightness | 700 nits (HBM) |
Platform
| OS | Android 16, XOS 16 |
|---|---|
| Chipset | Mediatek Helio G81 Ultimate (12 nm) |
| CPU | Octa-core (2x2.0 GHz Cortex-A75 & 6x1.7 GHz Cortex-A55) |
| GPU | Mali-G52 MC2 |
Memory
| RAM | 4 GB |
|---|---|
| Storage | 64 GB |
| Card slot | microSDXC (dedicated slot) |
Camera
| Rear camera | Single |
|---|---|
| Main camera | 8 MP |
| Rear features | Dual-LED flash, panorama |
| Selfie camera | Single |
| Selfie camera MP | 8 MP |
| Video | 1440p@30fps, 1080p@30fps |
Battery
| Capacity | 5,200 mAh |
|---|---|
| Wired charging | 15W |
| Reverse charging | 5W reverse wired |
Connectivity
| Network | GSM / HSPA / LTE |
|---|---|
| Wi-Fi | Wi-Fi 802.11 a/b/g/n/ac, dual-band |
| Bluetooth | Yes |
| GPS | GPS |
| NFC | Yes |
| USB | USB Type-C 2.0, OTG |
| Radio | FM radio |
Features
| Sensors | Fingerprint (side-mounted), accelerometer, proximity, compass |
|---|---|
| Fingerprint | side-mounted |
| Audio | Loudspeaker, 3.5mm jack |
| Colors | Shadow Black, Cloudline Blue, Polaris Titanium, Sunlike Orange |
Specifications last checked Jun 18, 2026.
Frequently Asked Questions
The Infinix Smart 20 has Mediatek Helio G81 Ultimate (12 nm) with 4 GB RAM / 64 GB storage. That is useful buying context, but this page should be treated as specs-led analysis unless hands-on gaming tests are stated.
The verified wired charging specification is 15W for its 5,200 mAh battery.
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