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Photo of Infinix Smart 20

Infinix Smart 20

6.78" · 78.8 mm · screen ~72.17×156.36 mm · 2026

Data & image source: GSMArena.com ↗

Codes: X6840, X6840B

Full spec ↓

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Full specification

Basics

Manufacturer
Infinix
Designations / variants
X6840, X6840B
Status
Available. Released 2026, March
Release year
2026, March 04
Weight
-
Dimensions
167.7 x 78.8 x 7.7 mm (6.60 x 3.10 x 0.30 in)
Build
Glass front, plastic back, plastic frame
Body — other
IP64 dust tight and water resistant (water splashes) Drop resistant up to 1.5m
Available colors
Shadow Black, Cloudline Blue, Polaris Titanium, Sunlike Orange

Screen

Display type
IPS LCD, 120Hz, 700 nits (HBM)
Screen diagonal
6.78 inches, 109.5 cm 2 (~82.9% screen-to-body ratio)
Screen resolution
720 x 1576 pixels, 19.5:9 ratio (~259 ppi density)

Performance

Operating system
Android 16, XOS 16
Chipset
Mediatek Helio G81 Ultimate (12 nm)
Processor (CPU)
Octa-core (2x2.0 GHz Cortex-A75 & 6x1.7 GHz Cortex-A55)
Graphics (GPU)
Mali-G52 MC2
Internal storage
64GB 4GB RAM, 128GB 4GB RAM
Memory card slot
microSDXC (dedicated slot)
Memory — other
eMMC 5.1

Camera

Rear camera
8 MP, f/2.0, (wide), 1/4.0", 1.12µm, AF
Rear camera — features
Dual-LED flash, panorama
Video (rear camera)
1440p@30fps, 1080p@30fps
Front camera
8 MP, f/2.0, (wide), 1/4.0", 1.12µm
Video (front camera)
1440p@30fps, 1080p@30fps

Connectivity

SIM card
Nano-SIM + Nano-SIM
Wi-Fi
Wi-Fi 802.11 a/b/g/n/ac, dual-band
Bluetooth
Yes
GPS
GPS
NFC
Yes
FM radio
FM radio
USB
USB Type-C 2.0, OTG
Sensors
Fingerprint (side-mounted), accelerometer, proximity, compass

Battery

Battery
5200 mAh

Other

imageUrl
https://fdn2.gsmarena.com/vv/bigpic/infinix-smart20.jpg
net2g
GSM 850 / 900 / 1800 / 1900
net3g
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
net4g
1, 2, 3, 4, 5, 7, 8, 20, 28, 38, 41, 40
speed
HSPA, LTE