Screen size
Poco C81xWinner: 6.9"+4.4%
Poco M4 5G6.6"
Quick verdict
Poco C81x and Poco M4 5G are close on the measured specs.
Measured wins
Poco C81x
8
spec wins
Ties
5
equal specs
Poco M4 5G
8
spec wins
Screen size
Technology
Poco C81x
GSM / HSPA / LTE
Poco M4 5G
GSM / HSPA / LTE / 5G
2G bands
Poco C81x
GSM 850 / 900 / 1800 / 1900
Poco M4 5G
GSM 850 / 900 / 1800 / 1900
3G bands
Poco C81x
HSDPA 850 / 900 / 2100
Poco M4 5G
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands
Poco C81x
1, 3, 5, 8, 28, 40, 41
Resolution
Refresh rate
Peak brightness
Pixel density
CPU speed
RAM
Storage
equal specsMain camera
equal specsFront camera
Battery
Wired charging
Weight
Thickness
IP rating
Wi‑Fi
Bluetooth
USB
equal specs5G support
NFC
3.5mm jack
equal specsSD card
equal specsStereo speakers
Poco M4 5G
1, 2, 3, 4, 5, 7, 8, 20, 28, 38, 40, 41
Speed
Poco C81x
HSPA, LTE
Poco M4 5G
HSPA, LTE, 5G
5G bands
Poco C81x
-
Poco M4 5G
1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 77, 78 SA/NSA
Announced
Poco C81x
2026, April 23
Poco M4 5G
2022, August 15
Status
Poco C81x
Available. Released 2026, April 23
Poco M4 5G
Available. Released 2022, October 07
Dimensions
Poco C81x
171.8 x 77.8 x 8.3 mm (6.76 x 3.06 x 0.33 in)
Poco M4 5G
164 x 76.1 x 8.9 mm (6.46 x 3.00 x 0.35 in)
Weight
Poco C81x
193 g (6.81 oz)
Poco M4 5G
200 g (7.05 oz)
SIM
Poco C81x
Nano-SIM + Nano-SIM
Poco M4 5G
Nano-SIM + Nano-SIM
Other
Poco C81x
Dust and splash resistant
Poco M4 5G
Splash resistant
Build
Poco C81x
-
Poco M4 5G
Glass front (Gorilla Glass), plastic frame, plastic back
Type
Poco C81x
IPS LCD, 120Hz, 650 nits (HBM)
Poco M4 5G
IPS LCD, 90Hz, 500 nits (HBM)
Size
Poco C81x
6.88 inches, 112.4 cm2 (~84.1% screen-to-body ratio)
Poco M4 5G
6.58 inches, 104.3 cm2 (~83.6% screen-to-body ratio)
Resolution
Poco C81x
720 x 1640 pixels (~260 ppi density)
Poco M4 5G
1080 x 2408 pixels, 20:9 ratio (~401 ppi density)
Protection
Poco C81x
-
Poco M4 5G
Corning Gorilla Glass (unspecified version)
OS
Poco C81x
Android 15, up to 2 major Android upgrades
Poco M4 5G
Android 12, MIUI 13
Chipset
Poco C81x
Unisoc T7250 (12 nm)
Poco M4 5G
Mediatek Dimensity 700 (7 nm)
CPU
Poco C81x
Octa-core (2x1.8 GHz Cortex-A75 & 6x1.6 GHz Cortex-A55)
Poco M4 5G
Octa-core (2x2.2 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)
GPU
Poco C81x
Mali-G57 MP1
Poco M4 5G
Mali-G57 MC2
Card slot
Poco C81x
microSDXC (dedicated slot)
Poco M4 5G
microSDXC (dedicated slot)
Internal
Poco C81x
64GB 3GB RAM
Poco M4 5G
64GB 4GB RAM, 128GB 6GB RAM
Other
Poco C81x
-
Poco M4 5G
UFS 2.2
Single
Poco C81x
13 MP, f/2.2, (wide)
Poco M4 5G
-
Features
Poco C81x
LED flash, HDR
Poco M4 5G
LED flash, HDR, panorama
Video
Poco C81x
1080p@30fps
Poco M4 5G
1080p@30fps
Dual
Poco C81x
-
Poco M4 5G
13 MP, f/2.2, (wide), PDAF Auxiliary lens
Single
Poco C81x
8 MP, f/2.0, (wide)
Poco M4 5G
5 MP, f/2.2, (wide)
Features
Poco C81x
HDR
Poco M4 5G
HDR
Video
Poco C81x
1080p@30fps
Poco M4 5G
1080p@30fps
Loudspeaker
Poco C81x
Yes
Poco M4 5G
Yes
3.5mm jack
Poco C81x
Yes
Poco M4 5G
Yes
Other
Poco C81x
-
Poco M4 5G
24-bit/192kHz Hi-Res audio
WLAN
Poco C81x
Wi-Fi 802.11 a/b/g/n/ac, dual-band
Poco M4 5G
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Bluetooth
Poco C81x
5.2, A2DP, LE
Poco M4 5G
5.1, A2DP, LE
Positioning
Poco C81x
GPS, GALILEO, GLONASS, QZSS
Poco M4 5G
GPS, GLONASS, BDS
NFC
Poco C81x
No
Poco M4 5G
Yes (market/region dependent)
Radio
Poco C81x
FM radio
Poco M4 5G
FM radio
USB
Poco C81x
USB Type-C 2.0, OTG
Poco M4 5G
USB Type-C 2.0, OTG
Infrared port
Poco C81x
-
Poco M4 5G
Yes
Sensors
Poco C81x
Fingerprint (side-mounted), accelerometer, compass
Poco M4 5G
Fingerprint (side-mounted), accelerometer, proximity, compass
Other
Poco C81x
Virtual proximity sensing
Poco M4 5G
-
Type
Poco C81x
5200 mAh
Poco M4 5G
Li-Po 5000 mAh
Charging
Poco C81x
15W wired 7.5W reverse wired
Poco M4 5G
18W wired
Colors
Poco C81x
Ice Blue, Crystal Black
Poco M4 5G
Power Black, Cool Blue, Poco Yellow
Price
Poco C81x
About 90 EUR
Poco M4 5G
About 180 EUR
Models
Poco C81x
-
Poco M4 5G
22041219PG
SAR
Poco C81x
-
Poco M4 5G
1.09 W/kg (head) 1.09 W/kg (body)
SAR EU
Poco C81x
-
Poco M4 5G
0.60 W/kg (head) 0.99 W/kg (body)