Infinix Smart 20 vs Xiaomi Poco C81x
Product
.webp)
.webp)
Price
105 USD
105 USD
Status
Available
Available
Brand
Infinix Mobiles
Xiaomi Mobiles
Model No
X6840, X6840B
Xiaomi Poco C81x
Launch Date
2026, March 04
2026, April 23
Technology
GSM / HSPA / LTE
GSM / HSPA / LTE
2G bands
GSM 850 / 900 / 1800 / 1900
GSM 850 / 900 / 1800 / 1900
3G bands
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
HSDPA 850 / 900 / 2100
4G bands
1, 2, 3, 4, 5, 7, 8, 20, 28, 38, 41, 40
1, 3, 5, 8, 28, 40, 41
Speed
HSPA, LTE
HSPA, LTE
Dimensions
167.7 x 78.8 x 7.7 mm (6.60 x 3.10 x 0.30 in)
171.8 x 77.8 x 8.3 mm (6.76 x 3.06 x 0.33 in)
Build
Glass front, plastic back, plastic frame
IP64 dust tight and water resistant (water splashes)
Drop resistant up to 1.5m
Dust and splash resistant
SIM
Nano-SIM + Nano-SIM
Nano-SIM + Nano-SIM
Colors
Shadow Black, Cloudline Blue, Polaris Titanium, Sunlike Orange
Ice Blue, Crystal Black
Weight
193 g (6.81 oz)
Type
IPS LCD, 120Hz, 700 nits (HBM)
IPS LCD, 120Hz, 650 nits (HBM)
Size
6.78 inches, 109.5 cm2 (~82.9% screen-to-body ratio)
6.88 inches, 112.4 cm2 (~84.1% screen-to-body ratio)
Resolution
720 x 1576 pixels, 19.5:9 ratio (~259 ppi density)
720 x 1640 pixels (~260 ppi density)
OS
Android 16, XOS 16
Android 15, up to 2 major Android upgrades
Chipset
Mediatek Helio G81 Ultimate (12 nm)
Unisoc T7250 (12 nm)
CPU
Octa-core (2x2.0 GHz Cortex-A75 & 6x1.7 GHz Cortex-A55)
Octa-core (2x1.8 GHz Cortex-A75 & 6x1.6 GHz Cortex-A55)
GPU
Mali-G52 MC2
Mali-G57 MP1
RAM
4GB
3GB
Storage
64GB/128GB
64GB
Lens 1
8 MP, f/2.0, (wide), 1/4.0", 1.12µm, AF
13 MP, f/2.2, (wide)
Features
Dual-LED flash, panorama
LED flash, HDR
Video
1440p@30fps, 1080p@30fps
1080p@30fps
Lens 1
8 MP, f/2.0, (wide), 1/4.0", 1.12µm
8 MP, f/2.0, (wide)
Video
1440p@30fps, 1080p@30fps
1080p@30fps
Features
HDR
Capacity
5200 mAh
5200 mAh
Charging
15W wired
5W reverse wired
15W wired
7.5W reverse wired
Sensors
Fingerprint (side-mounted), accelerometer, proximity, compass
Fingerprint (side-mounted), accelerometer, compass
Virtual proximity sensing
Loudspeaker
Yes
Yes
3.5mm jack
Yes
Yes
WLAN
Wi-Fi 802.11 a/b/g/n/ac, dual-band
Wi-Fi 802.11 a/b/g/n/ac, dual-band
Bluetooth
Yes
5.2, A2DP, LE
GPS
GPS
GPS, GALILEO, GLONASS, QZSS
NFC
Yes
Radio
FM radio
FM radio
USB
USB Type-C 2.0, OTG
USB Type-C 2.0, OTG