Screen size
Poco X8 PowerWinner: 6.8"+2.3%
Redmi K406.7"
Quick verdict
Poco X8 Power leads the measured specs 11-4.
Measured wins
Poco X8 Power
11
spec wins
Overall winner
Ties
7
equal specs
Redmi K40
4
spec wins
Screen size
Technology
Poco X8 Power
GSM / HSPA / LTE / 5G
Redmi K40
GSM / CDMA / HSPA / CDMA2000 / LTE / 5G
2G bands
Poco X8 Power
GSM 850 / 900 / 1800 / 1900
Redmi K40
GSM 850 / 900 / 1800 / 1900 , CDMA 800
3G bands
Poco X8 Power
HSDPA 850 / 1900 / 2100
Redmi K40
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 , CDMA2000 1x
4G bands
Poco X8 Power
LTE
Resolution
Refresh rate
equal specsPeak brightness
Pixel density
CPU speed
RAM
Storage
equal specsMain camera
Front 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
equal specsRedmi K40
1, 2, 3, 4, 5, 7, 8, 18, 19, 26, 28, 34, 38, 39, 40, 41, 42
5G bands
Poco X8 Power
SA/NSA
Redmi K40
1, 3, 28, 41, 77, 78 SA/NSA/Sub6
Speed
Poco X8 Power
HSPA, LTE, 5G
Redmi K40
HSPA, LTE, 5G
Announced
Poco X8 Power
2026, September 04
Redmi K40
2021, February 25
Status
Poco X8 Power
Available. Released 2026, September 11
Redmi K40
Available. Released 2021, March 04
Dimensions
Poco X8 Power
163.4 x 78.3 x 8.6 mm (6.43 x 3.08 x 0.34 in)
Redmi K40
163.7 x 76.4 x 7.8 mm (6.44 x 3.01 x 0.31 in)
Weight
Poco X8 Power
229 g (8.08 oz)
Redmi K40
196 g (6.91 oz)
Build
Poco X8 Power
Glass front (Gorilla Glass Victus 2), plastic back, plastic frame
Redmi K40
-
SIM
Poco X8 Power
Nano-SIM + Nano-SIM + eSIM + eSIM (max 2 at a time)
Redmi K40
Nano-SIM + Nano-SIM
Other
Poco X8 Power
IP68/IP69K dust tight and water resistant (high pressure water jets; immersible up to 2m for 30 min) Drop resistant up to 3m
Redmi K40
-
Type
Poco X8 Power
AMOLED, 68B colors, 120Hz, 3840Hz PWM, HDR10+, Dolby Vision, 1060 nits (typ), 2000 nits (HBM), 3500 nits (peak)
Redmi K40
Super AMOLED, 120Hz, HDR10+, 1300 nits (peak)
Size
Poco X8 Power
6.83 inches, 114.5 cm2 (~89.5% screen-to-body ratio)
Redmi K40
6.67 inches, 107.4 cm2 (~85.9% screen-to-body ratio)
Resolution
Poco X8 Power
1280 x 2772 pixels, 19.5:9 ratio (~447 ppi density)
Redmi K40
1080 x 2400 pixels, 20:9 ratio (~395 ppi density)
Protection
Poco X8 Power
Corning Gorilla Glass Victus 2
Redmi K40
Corning Gorilla Glass 5
OS
Poco X8 Power
Android 16, up to 4 major OS updates, HyperOS 3
Redmi K40
Android 11, MIUI 12
Chipset
Poco X8 Power
Qualcomm SM6850 Snapdragon 6 Gen 5 (4 nm)
Redmi K40
Qualcomm SM8250-AC Snapdragon 870 5G (7 nm)
CPU
Poco X8 Power
Octa-core (4x2.6 GHz Cortex-A78 & 4x2.0 GHz Cortex-A55)
Redmi K40
Octa-core (1x3.2 GHz Kryo 585 & 3x2.42 GHz Kryo 585 & 4x1.80 GHz Kryo 585)
GPU
Poco X8 Power
Adreno 812
Redmi K40
Adreno 650
Card slot
Poco X8 Power
No
Redmi K40
No
Internal
Poco X8 Power
128GB 8GB RAM, 256GB 8GB RAM
Redmi K40
128GB 6GB RAM, 128GB 8GB RAM, 256GB 8GB RAM, 256GB 12GB RAM
Other
Poco X8 Power
UFS 2.2
Redmi K40
UFS 3.1
Dual
Poco X8 Power
50 MP, f/1.5, 26mm (wide), 1/1.95", 0.8µm, PDAF, OIS 8 MP, f/2.2, 15mm, 120˚ (ultrawide), 1/4.0", 1.12µm
Redmi K40
-
Features
Poco X8 Power
LED flash, HDR, panorama
Redmi K40
Color spectrum sensor, LED flash, HDR, panorama
Video
Poco X8 Power
4K@30fps, 1080p@30/60fps, gyro-EIS, OIS
Redmi K40
4K@30fps, 1080p@30/60/120/240/960fps, gyro-EIS
Triple
Poco X8 Power
-
Redmi K40
48 MP, f/1.8, 26mm (wide), 1/2.0", 0.8µm, PDAF 8 MP, f/2.2, 119˚ (ultrawide) 5 MP, f/2.4, 50mm (macro)
Single
Poco X8 Power
32 MP, f/2.2, (wide), 1/3.6", 0.61µm
Redmi K40
20 MP, f/2.5, (wide), 1/3.4", 0.8µm
Features
Poco X8 Power
HDR, panorama
Redmi K40
HDR
Video
Poco X8 Power
4K@30fps, 1080p@30/60fps, gyro-EIS
Redmi K40
1080p@30fps, 720p@120fps
Loudspeaker
Poco X8 Power
Yes, with stereo speakers (with Dolby Atmos)
Redmi K40
Yes, with stereo speakers
3.5mm jack
Poco X8 Power
No
Redmi K40
No
Other
Poco X8 Power
24-bit/192kHz Hi-Res & Hi-Res wireless audio
Redmi K40
24-bit/192kHz Hi-Res audio
WLAN
Poco X8 Power
Yes
Redmi K40
Wi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct
Bluetooth
Poco X8 Power
6.0, A2DP, LE
Redmi K40
5.1, A2DP, LE
Positioning
Poco X8 Power
GPS, GALILEO, GLONASS, QZSS, BDS
Redmi K40
GPS (L1+L5), GLONASS (G1), BDS (B1I+B2a), GALILEO (E1+E5a), QZSS (L1+L5), NavIC
NFC
Poco X8 Power
No
Redmi K40
Yes
Infrared port
Poco X8 Power
Yes
Redmi K40
Yes
Radio
Poco X8 Power
No
Redmi K40
No
USB
Poco X8 Power
USB Type-C 2.0, OTG
Redmi K40
USB Type-C 2.0, OTG
Sensors
Poco X8 Power
Fingerprint (under display, optical), accelerometer, gyro, compass, proximity (ultrasonic)
Redmi K40
Fingerprint (side-mounted), accelerometer, gyro, proximity, compass
Type
Poco X8 Power
Si/C Li-Ion 10000 mAh
Redmi K40
Li-Po 4520 mAh
Charging
Poco X8 Power
100W wired, PD3.0, PPS 27W reverse wired Bypass charging
Redmi K40
33W wired, PD3.0, QC3, 100% in 52 min
Colors
Poco X8 Power
Black, Yellow
Redmi K40
Black, White, Aurora
Price
Poco X8 Power
About 330 EUR
Redmi K40
About 280 EUR
Models
Poco X8 Power
-
Redmi K40
M2012K11AC