Screen size
Poco C81 ProWinner: 6.9"+20%
Redmi Note 45.5"
Quick verdict
Poco C81 Pro leads the measured specs 12-4.
Measured wins
Poco C81 Pro
12
spec wins
Overall winner
Ties
5
equal specs
Redmi Note 4
4
spec wins
Screen size
Technology
Poco C81 Pro
GSM / HSPA / LTE
Redmi Note 4
GSM / HSPA / LTE
2G bands
Poco C81 Pro
GSM 900 / 1800 / 1900
Redmi Note 4
GSM 900 / 1800 / 1900 - SIM 1 & SIM 2
3G bands
Poco C81 Pro
HSDPA 850 / 900 / 2100 - International, HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 - LATAM
Redmi Note 4
HSDPA 850 / 900 / 1900 / 2100
4G bands
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
Resolution
Refresh rate
Peak brightness
Pixel density
CPU speed
RAM
Storage
Main camera
equal specsFront camera
Battery
Wired charging
Weight
Thickness
IP rating
Wi‑Fi
Bluetooth
USB
equal specs5G support
equal specsNFC
3.5mm jack
equal specsSD card
equal specsStereo speakers
Redmi Note 4
1, 3, 4, 5, 7, 8, 20, 38, 40
Speed
Poco C81 Pro
HSPA, LTE
Redmi Note 4
HSPA 42.2/5.76 Mbps, LTE (2CA) Cat6 300/50 Mbps
Announced
Poco C81 Pro
2026, April 27
Redmi Note 4
2017, January. Released 2017, January
Status
Poco C81 Pro
Available. Released 2026, April 27
Redmi Note 4
Discontinued
Dimensions
Poco C81 Pro
171.6 x 79.5 x 8.2 mm (6.76 x 3.13 x 0.32 in)
Redmi Note 4
151 x 76 x 8.5 mm (5.94 x 2.99 x 0.33 in)
Weight
Poco C81 Pro
208 g (7.34 oz)
Redmi Note 4
165 g (5.82 oz)
Build
Poco C81 Pro
Glass front, plastic frame, plastic back
Redmi Note 4
Glass front, aluminum back, aluminum frame
SIM
Poco C81 Pro
Nano-SIM + Nano-SIM
Redmi Note 4
Nano-SIM + Micro-SIM
Type
Poco C81 Pro
IPS LCD, 120Hz, 650 nits (typ), 800 nits (peak)
Redmi Note 4
IPS LCD
Size
Poco C81 Pro
6.9 inches, 114.9 cm2 (~84.3% screen-to-body ratio)
Redmi Note 4
5.5 inches, 83.4 cm2 (~72.7% screen-to-body ratio)
Resolution
Poco C81 Pro
720 x 1600 pixels, 20:9 ratio (~254 ppi density)
Redmi Note 4
1080 x 1920 pixels, 16:9 ratio (~401 ppi density)
OS
Poco C81 Pro
Android 15, up to 4 major Android upgrades, HyperOS 3
Redmi Note 4
Android 6.0 (Marshmallow), upgradable to 7.0 (Nougat), MIUI 11
Chipset
Poco C81 Pro
Unisoc T7250 (12 nm)
Redmi Note 4
Qualcomm MSM8953 Snapdragon 625 (14 nm)
CPU
Poco C81 Pro
Octa-core (2x1.8 GHz Cortex-A75 & 6x1.6 GHz Cortex-A55)
Redmi Note 4
Octa-core 2.0 GHz Cortex-A53
GPU
Poco C81 Pro
Mali-G57 MP1
Redmi Note 4
Adreno 506
Card slot
Poco C81 Pro
microSDXC (dedicated slot)
Redmi Note 4
microSDXC (uses shared SIM slot)
Internal
Poco C81 Pro
64GB 4GB RAM, 128GB 4GB RAM, 256GB 4GB RAM
Redmi Note 4
32GB 3GB RAM, 64GB 3GB RAM, 64GB 4GB RAM
Other
Poco C81 Pro
UFS 2.2
Redmi Note 4
eMMC 5.1
Single
Poco C81 Pro
13 MP, f/2.2, (wide), 1/3.06"
Redmi Note 4
13 MP, f/2.0, 1/3.1", 1.12µm, PDAF
Features
Poco C81 Pro
LED flash, HDR
Redmi Note 4
Dual-LED dual-tone flash, panorama, HDR
Video
Poco C81 Pro
1080p@30fps
Redmi Note 4
1080p@30fps, 720p@120fps
Single
Poco C81 Pro
8 MP, f/2.0, (wide)
Redmi Note 4
5 MP, f/2.0
Features
Poco C81 Pro
HDR
Redmi Note 4
-
Video
Poco C81 Pro
1080p@30fps
Redmi Note 4
1080p@30fps
Loudspeaker
Poco C81 Pro
Yes
Redmi Note 4
Yes
3.5mm jack
Poco C81 Pro
Yes
Redmi Note 4
Yes
Other
Poco C81 Pro
-
Redmi Note 4
24-bit/192kHz audio
WLAN
Poco C81 Pro
Wi-Fi 802.11 a/b/g/n/ac, dual-band
Redmi Note 4
Wi-Fi 802.11 a/b/g/n, Wi-Fi Direct
Bluetooth
Poco C81 Pro
5.2, A2DP, LE
Redmi Note 4
4.1, A2DP, LE
Positioning
Poco C81 Pro
GPS, GALILEO, GLONASS, BDS
Redmi Note 4
GPS, GLONASS, BDS
NFC
Poco C81 Pro
Yes (market/region dependent)
Redmi Note 4
No
Radio
Poco C81 Pro
FM radio
Redmi Note 4
FM radio
USB
Poco C81 Pro
USB Type-C 2.0
Redmi Note 4
microUSB 2.0, OTG
Infrared port
Poco C81 Pro
-
Redmi Note 4
Yes
Sensors
Poco C81 Pro
Fingerprint (side-mounted), accelerometer, compass
Redmi Note 4
Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass
Other
Poco C81 Pro
Virtual proximity sensing
Redmi Note 4
-
Type
Poco C81 Pro
6000 mAh
Redmi Note 4
Li-Po 4100 mAh, non-removable
Charging
Poco C81 Pro
15W wired 7.5W reverse wired
Redmi Note 4
-
Colors
Poco C81 Pro
Black, Gold, Green
Redmi Note 4
Dark Gray, Gold, Black, Lake Blue
Price
Poco C81 Pro
About 120 EUR
Redmi Note 4
About 150 EUR
Models
Poco C81 Pro
-
Redmi Note 4
2016100
SAR EU
Poco C81 Pro
-
Redmi Note 4
0.72 W/kg (head) 0.67 W/kg (body)