Screen size
Mi 45.0"
Poco C81 ProWinner: 6.9"+28%
Quick verdict
Poco C81 Pro leads the measured specs 11-5.
Measured wins
Mi 4
5
spec wins
Ties
5
equal specs
Poco C81 Pro
11
spec wins
Overall winner
Screen size
Technology
Mi 4
GSM / CDMA / HSPA / EVDO / LTE
Poco C81 Pro
GSM / HSPA / LTE
2G bands
Mi 4
GSM 850 / 900 / 1800 / 1900 - all versions, CDMA 800 / 1900 - Telecom 3G model
Poco C81 Pro
GSM 900 / 1800 / 1900
3G bands
Mi 4
TD-SCDMA - 4G model, HSDPA 850 / 900 / 1900 / 2100 - Unicom 3G model, Telecom 3G model, CDMA2000 1xEV-DO - Telecom 3G model
Poco C81 Pro
HSDPA 850 / 900 / 2100 - International, HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 - LATAM
4G bands
Resolution
Refresh rate
Peak brightness
Pixel density
CPU speed
RAM
Storage
Main camera
equal specsFront camera
equal specsBattery
Wired charging
Weight
Thickness
IP rating
Wi‑Fi
Bluetooth
USB
equal specs5G support
equal specsNFC
3.5mm jack
equal specsSD card
Stereo speakers
Mi 4
38, 39, 40 - 4G model
Poco C81 Pro
1, 3, 5, 7, 8, 20, 28, 38, 40, 41 - International, 1, 2, 3, 4, 5, 7, 8, 13, 18, 19, 26, 28, 38, 40, 41, 66 - LATAM
Speed
Mi 4
HSPA, LTE, EV-DO Rev.A 3.1 Mbps
Poco C81 Pro
HSPA, LTE
GPRS
Mi 4
Yes
Poco C81 Pro
-
EDGE
Mi 4
Yes
Poco C81 Pro
-
Announced
Mi 4
2014, July. Released 2014, August
Poco C81 Pro
2026, April 27
Status
Mi 4
Discontinued
Poco C81 Pro
Available. Released 2026, April 27
Dimensions
Mi 4
139.2 x 68.5 x 8.9 mm (5.48 x 2.70 x 0.35 in)
Poco C81 Pro
171.6 x 79.5 x 8.2 mm (6.76 x 3.13 x 0.32 in)
Weight
Mi 4
149 g (5.26 oz)
Poco C81 Pro
208 g (7.34 oz)
Build
Mi 4
Glass front, plastic back, aluminum frame
Poco C81 Pro
Glass front, plastic frame, plastic back
SIM
Mi 4
Micro-SIM
Poco C81 Pro
Nano-SIM + Nano-SIM
Type
Mi 4
IPS LCD
Poco C81 Pro
IPS LCD, 120Hz, 650 nits (typ), 800 nits (peak)
Size
Mi 4
5.0 inches, 68.9 cm2 (~72.3% screen-to-body ratio)
Poco C81 Pro
6.9 inches, 114.9 cm2 (~84.3% screen-to-body ratio)
Resolution
Mi 4
1080 x 1920 pixels, 16:9 ratio (~441 ppi density)
Poco C81 Pro
720 x 1600 pixels, 20:9 ratio (~254 ppi density)
OS
Mi 4
Android 4.4.3 (KitKat), upgradable to 6.0.1 (Marshmallow), MIUI 10
Poco C81 Pro
Android 15, up to 4 major Android upgrades, HyperOS 3
Chipset
Mi 4
Qualcomm MSM8974AC Snapdragon 801 (28 nm)
Poco C81 Pro
Unisoc T7250 (12 nm)
CPU
Mi 4
Quad-core 2.5 GHz Krait 400
Poco C81 Pro
Octa-core (2x1.8 GHz Cortex-A75 & 6x1.6 GHz Cortex-A55)
GPU
Mi 4
Adreno 330
Poco C81 Pro
Mali-G57 MP1
Card slot
Mi 4
No
Poco C81 Pro
microSDXC (dedicated slot)
Internal
Mi 4
16GB 2GB RAM, 64GB 3GB RAM
Poco C81 Pro
64GB 4GB RAM, 128GB 4GB RAM, 256GB 4GB RAM
Other
Mi 4
eMMC 5.0
Poco C81 Pro
UFS 2.2
Single
Mi 4
13 MP, f/1.8, 1/3.1", 1.12µm, AF
Poco C81 Pro
13 MP, f/2.2, (wide), 1/3.06"
Features
Mi 4
LED flash, panorama, HDR
Poco C81 Pro
LED flash, HDR
Video
Mi 4
4K@30fps, 1080p@30fps, 720p@120fps, HDR
Poco C81 Pro
1080p@30fps
Single
Mi 4
8 MP, f/1.8
Poco C81 Pro
8 MP, f/2.0, (wide)
Video
Mi 4
1080p@30fps
Poco C81 Pro
1080p@30fps
Features
Mi 4
-
Poco C81 Pro
HDR
Loudspeaker
Mi 4
Yes
Poco C81 Pro
Yes
3.5mm jack
Mi 4
Yes
Poco C81 Pro
Yes
WLAN
Mi 4
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, DLNA, hotspot
Poco C81 Pro
Wi-Fi 802.11 a/b/g/n/ac, dual-band
Bluetooth
Mi 4
4.0, A2DP
Poco C81 Pro
5.2, A2DP, LE
Positioning
Mi 4
GPS, GLONASS, BDS
Poco C81 Pro
GPS, GALILEO, GLONASS, BDS
NFC
Mi 4
No
Poco C81 Pro
Yes (market/region dependent)
Infrared port
Mi 4
Yes
Poco C81 Pro
-
Radio
Mi 4
FM radio
Poco C81 Pro
FM radio
USB
Mi 4
microUSB 2.0, OTG
Poco C81 Pro
USB Type-C 2.0
Sensors
Mi 4
Accelerometer, gyro, proximity, compass, barometer
Poco C81 Pro
Fingerprint (side-mounted), accelerometer, compass
Other
Mi 4
-
Poco C81 Pro
Virtual proximity sensing
Type
Mi 4
Li-Ion 3080 mAh, non-removable
Poco C81 Pro
6000 mAh
Charging
Mi 4
18W wired, QC2
Poco C81 Pro
15W wired 7.5W reverse wired
Stand-by
Mi 4
Up to 280 h (3G)
Poco C81 Pro
-
Colors
Mi 4
Black, White
Poco C81 Pro
Black, Gold, Green
Models
Mi 4
2014215
Poco C81 Pro
-
SAR
Mi 4
0.71 W/kg (head) 0.85 W/kg (body)
Poco C81 Pro
-
Price
Mi 4
About 230 EUR
Poco C81 Pro
About 120 EUR