Screen size
Mi 45.0"
Poco C81Winner: 6.9"+28%
Quick verdict
Poco C81 leads the measured specs 10-5.
Measured wins
Mi 4
5
spec wins
Ties
6
equal specs
Poco C81
10
spec wins
Overall winner
Screen size
Technology
Mi 4
GSM / CDMA / HSPA / EVDO / LTE
Poco C81
GSM / HSPA / LTE
2G bands
Mi 4
GSM 850 / 900 / 1800 / 1900 - all versions, CDMA 800 / 1900 - Telecom 3G model
Poco C81
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
HSDPA 850 / 900 / 2100
4G bands
Mi 4
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
equal specs3.5mm jack
equal specsSD card
Stereo speakers
38, 39, 40 - 4G model
Poco C81
LTE
Speed
Mi 4
HSPA, LTE, EV-DO Rev.A 3.1 Mbps
Poco C81
HSPA, LTE
GPRS
Mi 4
Yes
Poco C81
-
EDGE
Mi 4
Yes
Poco C81
-
Announced
Mi 4
2014, July. Released 2014, August
Poco C81
2026, April 23
Status
Mi 4
Discontinued
Poco C81
Available. Released 2026, April 23
Dimensions
Mi 4
139.2 x 68.5 x 8.9 mm (5.48 x 2.70 x 0.35 in)
Poco C81
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
208 g (7.34 oz)
Build
Mi 4
Glass front, plastic back, aluminum frame
Poco C81
Glass front, plastic frame, plastic back
SIM
Mi 4
Micro-SIM
Poco C81
Nano-SIM + Nano-SIM
Other
Mi 4
-
Poco C81
Dust and splash resistant
Type
Mi 4
IPS LCD
Poco C81
IPS LCD, 120Hz, 800 nits (peak)
Size
Mi 4
5.0 inches, 68.9 cm2 (~72.3% screen-to-body ratio)
Poco C81
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
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
Android 16, up to 4 major Android upgrades, HyperOS 3
Chipset
Mi 4
Qualcomm MSM8974AC Snapdragon 801 (28 nm)
Poco C81
Unisoc T7250 (12 nm)
CPU
Mi 4
Quad-core 2.5 GHz Krait 400
Poco C81
Octa-core (2x1.8 GHz Cortex-A75 & 6x1.6 GHz Cortex-A55)
GPU
Mi 4
Adreno 330
Poco C81
Mali-G57 MP1
Card slot
Mi 4
No
Poco C81
microSDXC (dedicated slot)
Internal
Mi 4
16GB 2GB RAM, 64GB 3GB RAM
Poco C81
64GB 4GB RAM
Other
Mi 4
eMMC 5.0
Poco C81
-
Single
Mi 4
13 MP, f/1.8, 1/3.1", 1.12µm, AF
Poco C81
13 MP, (wide)
Features
Mi 4
LED flash, panorama, HDR
Poco C81
LED flash
Video
Mi 4
4K@30fps, 1080p@30fps, 720p@120fps, HDR
Poco C81
1080p@30fps
Single
Mi 4
8 MP, f/1.8
Poco C81
8 MP, (wide)
Video
Mi 4
1080p@30fps
Poco C81
1080p@30fps
Features
Mi 4
-
Poco C81
HDR
Loudspeaker
Mi 4
Yes
Poco C81
Yes
3.5mm jack
Mi 4
Yes
Poco C81
Yes
WLAN
Mi 4
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, DLNA, hotspot
Poco C81
Wi-Fi 802.11 a/b/g/n/ac, dual-band
Bluetooth
Mi 4
4.0, A2DP
Poco C81
5.2, A2DP, LE
Positioning
Mi 4
GPS, GLONASS, BDS
Poco C81
GPS, GALILEO, GLONASS, BDS
NFC
Mi 4
No
Poco C81
No
Infrared port
Mi 4
Yes
Poco C81
-
Radio
Mi 4
FM radio
Poco C81
FM radio
USB
Mi 4
microUSB 2.0, OTG
Poco C81
USB Type-C 2.0
Sensors
Mi 4
Accelerometer, gyro, proximity, compass, barometer
Poco C81
Fingerprint (side-mounted), accelerometer, compass
Other
Mi 4
-
Poco C81
Virtual proximity sensing
Type
Mi 4
Li-Ion 3080 mAh, non-removable
Poco C81
6300 mAh
Charging
Mi 4
18W wired, QC2
Poco C81
15W wired 7.5W reverse wired
Stand-by
Mi 4
Up to 280 h (3G)
Poco C81
-
Colors
Mi 4
Black, White
Poco C81
Sky Blue, Elite Black, Sunset Gold
Models
Mi 4
2014215
Poco C81
-
SAR
Mi 4
0.71 W/kg (head) 0.85 W/kg (body)
Poco C81
-
Price
Mi 4
About 230 EUR
Poco C81
About 100 EUR