Screen size
Poco C81xWinner: 6.9"+7.1%
Redmi K206.4"
Quick verdict
Redmi K20 leads the measured specs 9-7.
Measured wins
Poco C81x
7
spec wins
Ties
5
equal specs
Redmi K20
9
spec wins
Overall winner
Screen size
Technology
Poco C81x
GSM / HSPA / LTE
Redmi K20
GSM / HSPA / LTE
2G bands
Poco C81x
GSM 850 / 900 / 1800 / 1900
Redmi K20
GSM 850 / 900 / 1800 / 1900
3G bands
Poco C81x
HSDPA 850 / 900 / 2100
Redmi K20
HSDPA 850 / 900 / 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
Front camera
Battery
Wired charging
Weight
Thickness
IP rating
Wi‑Fi
Bluetooth
equal specsUSB
equal specs5G support
equal specsNFC
3.5mm jack
equal specsSD card
Stereo speakers
Redmi K20
1, 3, 5, 7, 8, 34, 38, 39, 40, 41
Speed
Poco C81x
HSPA, LTE
Redmi K20
HSPA, LTE
Announced
Poco C81x
2026, April 23
Redmi K20
2019, May. Released 2019, June
Status
Poco C81x
Available. Released 2026, April 23
Redmi K20
Discontinued
Dimensions
Poco C81x
171.8 x 77.8 x 8.3 mm (6.76 x 3.06 x 0.33 in)
Redmi K20
156.7 x 74.3 x 8.8 mm (6.17 x 2.93 x 0.35 in)
Weight
Poco C81x
193 g (6.81 oz)
Redmi K20
191 g (6.74 oz)
SIM
Poco C81x
Nano-SIM + Nano-SIM
Redmi K20
Nano-SIM + Nano-SIM
Other
Poco C81x
Dust and splash resistant
Redmi K20
-
Build
Poco C81x
-
Redmi K20
Glass front (Gorilla Glass 5), glass back (Gorilla Glass 5), aluminum frame
Type
Poco C81x
IPS LCD, 120Hz, 650 nits (HBM)
Redmi K20
Super AMOLED, HDR
Size
Poco C81x
6.88 inches, 112.4 cm2 (~84.1% screen-to-body ratio)
Redmi K20
6.39 inches, 100.2 cm2 (~86.1% screen-to-body ratio)
Resolution
Poco C81x
720 x 1640 pixels (~260 ppi density)
Redmi K20
1080 x 2340 pixels, 19.5:9 ratio (~403 ppi density)
Protection
Poco C81x
-
Redmi K20
Corning Gorilla Glass 5
OS
Poco C81x
Android 15, up to 2 major Android upgrades
Redmi K20
Android 9.0 (Pie), upgradable to Android 10, MIUI 12
Chipset
Poco C81x
Unisoc T7250 (12 nm)
Redmi K20
Qualcomm SDM730 Snapdragon 730 (8 nm)
CPU
Poco C81x
Octa-core (2x1.8 GHz Cortex-A75 & 6x1.6 GHz Cortex-A55)
Redmi K20
Octa-core (2x2.2 GHz Kryo 470 Gold & 6x1.8 GHz Kryo 470 Silver)
GPU
Poco C81x
Mali-G57 MP1
Redmi K20
Adreno 618
Card slot
Poco C81x
microSDXC (dedicated slot)
Redmi K20
No
Internal
Poco C81x
64GB 3GB RAM
Redmi K20
64GB 6GB RAM, 128GB 6GB RAM, 256GB 8GB RAM
Other
Poco C81x
-
Redmi K20
UFS 2.1
Single
Poco C81x
13 MP, f/2.2, (wide)
Redmi K20
-
Features
Poco C81x
LED flash, HDR
Redmi K20
Dual-LED flash, HDR, panorama
Video
Poco C81x
1080p@30fps
Redmi K20
4K@30fps, 1080p@30/120/240fps, 1080p@960fps
Triple
Poco C81x
-
Redmi K20
48 MP, f/1.8, 26mm (wide), 1/2.0", 0.8µm, PDAF 8 MP, f/2.4, 53mm (telephoto), 1/4.0", 1.12µm, PDAF, 2x optical zoom 13 MP, f/2.4, 12mm (ultrawide), 1/3.1", 1.12µm
Single
Poco C81x
8 MP, f/2.0, (wide)
Redmi K20
Motorized pop-up 20 MP, f/2.2, (wide), 1/3.4", 0.8µm
Features
Poco C81x
HDR
Redmi K20
HDR
Video
Poco C81x
1080p@30fps
Redmi K20
1080p@30fps
Loudspeaker
Poco C81x
Yes
Redmi K20
Yes
3.5mm jack
Poco C81x
Yes
Redmi K20
Yes
Other
Poco C81x
-
Redmi K20
24-bit/192kHz Hi-Res audio
WLAN
Poco C81x
Wi-Fi 802.11 a/b/g/n/ac, dual-band
Redmi K20
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Bluetooth
Poco C81x
5.2, A2DP, LE
Redmi K20
5.0, A2DP, LE, aptX HD
Positioning
Poco C81x
GPS, GALILEO, GLONASS, QZSS
Redmi K20
GPS, GLONASS, GALILEO, BDS
NFC
Poco C81x
No
Redmi K20
Yes (China only)
Radio
Poco C81x
FM radio
Redmi K20
FM radio
USB
Poco C81x
USB Type-C 2.0, OTG
Redmi K20
USB Type-C 2.0, OTG
Sensors
Poco C81x
Fingerprint (side-mounted), accelerometer, compass
Redmi K20
Fingerprint (under display, optical), accelerometer, gyro, proximity, compass
Other
Poco C81x
Virtual proximity sensing
Redmi K20
-
Type
Poco C81x
5200 mAh
Redmi K20
Li-Po 4000 mAh, non-removable
Charging
Poco C81x
15W wired 7.5W reverse wired
Redmi K20
18W wired
Colors
Poco C81x
Ice Blue, Crystal Black
Redmi K20
Carbon black, Red flame, Glacier blue, Pearl White
Price
Poco C81x
About 90 EUR
Redmi K20
About 260 EUR
Models
Poco C81x
-
Redmi K20
M1903F10I
SAR
Poco C81x
-
Redmi K20
1.07 W/kg (head) 0.72 W/kg (body)