Screen size
Mi 4s5.0"
Poco C81 ProWinner: 6.9"+28%
Quick verdict
Poco C81 Pro leads the measured specs 10-5.
Measured wins
Mi 4s
5
spec wins
Ties
6
equal specs
Poco C81 Pro
10
spec wins
Overall winner
Screen size
Technology
Mi 4s
GSM / CDMA / HSPA / LTE
Poco C81 Pro
GSM / HSPA / LTE
2G bands
Mi 4s
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2, CDMA 800 / 1900
Poco C81 Pro
GSM 900 / 1800 / 1900
3G bands
Mi 4s
HSDPA 850 / 1900 / 2100 , TD-SCDMA
Poco C81 Pro
HSDPA 850 / 900 / 2100 - International, HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 - LATAM
4G bands
Mi 4s
1, 3, 7, 38, 39, 40, 41
Resolution
Refresh rate
Peak brightness
Pixel density
CPU speed
equal specsRAM
Storage
equal specsMain camera
equal specsFront camera
Battery
Wired charging
Weight
Thickness
IP rating
Wi‑Fi
Bluetooth
USB
5G support
equal specsNFC
3.5mm jack
equal specsSD card
equal specsStereo speakers
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 4s
HSPA, LTE Cat4 150/50 Mbps
Poco C81 Pro
HSPA, LTE
Announced
Mi 4s
2016, February. Released 2016, March
Poco C81 Pro
2026, April 27
Status
Mi 4s
Discontinued
Poco C81 Pro
Available. Released 2026, April 27
Dimensions
Mi 4s
139.3 x 70.8 x 7.8 mm (5.48 x 2.79 x 0.31 in)
Poco C81 Pro
171.6 x 79.5 x 8.2 mm (6.76 x 3.13 x 0.32 in)
Weight
Mi 4s
133 g (4.69 oz)
Poco C81 Pro
208 g (7.34 oz)
SIM
Mi 4s
Nano-SIM + Micro-SIM
Poco C81 Pro
Nano-SIM + Nano-SIM
Build
Mi 4s
-
Poco C81 Pro
Glass front, plastic frame, plastic back
Type
Mi 4s
IPS LCD
Poco C81 Pro
IPS LCD, 120Hz, 650 nits (typ), 800 nits (peak)
Size
Mi 4s
5.0 inches, 68.9 cm2 (~69.9% screen-to-body ratio)
Poco C81 Pro
6.9 inches, 114.9 cm2 (~84.3% screen-to-body ratio)
Resolution
Mi 4s
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 4s
Android 5.1 (Lollipop), upgradable to 7.0 (Nougat), MIUI 10
Poco C81 Pro
Android 15, up to 4 major Android upgrades, HyperOS 3
Chipset
Mi 4s
Qualcomm MSM8992 Snapdragon 808 (20 nm)
Poco C81 Pro
Unisoc T7250 (12 nm)
CPU
Mi 4s
Hexa-core (4x1.4 GHz Cortex-A53 & 2x1.8 GHz Cortex-A57)
Poco C81 Pro
Octa-core (2x1.8 GHz Cortex-A75 & 6x1.6 GHz Cortex-A55)
GPU
Mi 4s
Adreno 418
Poco C81 Pro
Mali-G57 MP1
Card slot
Mi 4s
microSDXC (uses shared SIM slot)
Poco C81 Pro
microSDXC (dedicated slot)
Internal
Mi 4s
64GB 3GB RAM
Poco C81 Pro
64GB 4GB RAM, 128GB 4GB RAM, 256GB 4GB RAM
Other
Mi 4s
eMMC 5.0
Poco C81 Pro
UFS 2.2
Single
Mi 4s
13 MP, f/2.0, PDAF
Poco C81 Pro
13 MP, f/2.2, (wide), 1/3.06"
Features
Mi 4s
Dual-LED dual-tone flash, panorama, HDR
Poco C81 Pro
LED flash, HDR
Video
Mi 4s
1080p@30fps, 720p@120fps
Poco C81 Pro
1080p@30fps
Single
Mi 4s
5 MP, f/2.0
Poco C81 Pro
8 MP, f/2.0, (wide)
Video
Mi 4s
1080p@30fps
Poco C81 Pro
1080p@30fps
Features
Mi 4s
-
Poco C81 Pro
HDR
Loudspeaker
Mi 4s
Yes
Poco C81 Pro
Yes
3.5mm jack
Mi 4s
Yes
Poco C81 Pro
Yes
WLAN
Mi 4s
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot
Poco C81 Pro
Wi-Fi 802.11 a/b/g/n/ac, dual-band
Bluetooth
Mi 4s
4.1, A2DP
Poco C81 Pro
5.2, A2DP, LE
Positioning
Mi 4s
GPS, GLONASS, BDS
Poco C81 Pro
GPS, GALILEO, GLONASS, BDS
NFC
Mi 4s
No
Poco C81 Pro
Yes (market/region dependent)
Infrared port
Mi 4s
Yes
Poco C81 Pro
-
Radio
Mi 4s
No
Poco C81 Pro
FM radio
USB
Mi 4s
USB Type-C
Poco C81 Pro
USB Type-C 2.0
Sensors
Mi 4s
Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass
Poco C81 Pro
Fingerprint (side-mounted), accelerometer, compass
Other
Mi 4s
-
Poco C81 Pro
Virtual proximity sensing
Type
Mi 4s
Li-Ion 3260 mAh, non-removable
Poco C81 Pro
6000 mAh
Charging
Mi 4s
18W wired, QC2, 40% in 60 min
Poco C81 Pro
15W wired 7.5W reverse wired
Colors
Mi 4s
Black, White, Gold, Pink
Poco C81 Pro
Black, Gold, Green
Price
Mi 4s
About 220 EUR
Poco C81 Pro
About 120 EUR