Screen size
Poco M8Winner: 6.8"+1.5%
Redmi K406.7"
Quick verdict
Poco M8 leads the measured specs 9-3.
Measured wins
Poco M8
9
spec wins
Overall winner
Ties
10
equal specs
Redmi K40
3
spec wins
Screen size
Technology
Poco M8
GSM / HSPA / LTE / 5G
Redmi K40
GSM / CDMA / HSPA / CDMA2000 / LTE / 5G
2G bands
Poco M8
GSM 850 / 900 / 1800 / 1900
Redmi K40
GSM 850 / 900 / 1800 / 1900 , CDMA 800
3G bands
Poco M8
HSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100
Redmi K40
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 , CDMA2000 1x
4G bands
Poco M8
1, 2, 3, 4, 5, 7, 8, 18, 19, 20, 26, 28, 38, 40, 41, 42, 48, 66, 71
Resolution
Refresh rate
equal specsPeak brightness
Pixel density
CPU speed
RAM
equal specsStorage
equal specsMain camera
Front camera
equal specsBattery
Wired charging
Weight
Thickness
IP rating
Wi‑Fi
Bluetooth
equal specsUSB
equal specs5G support
equal specsNFC
equal specs3.5mm jack
equal specsSD card
Stereo speakers
equal specsRedmi K40
1, 2, 3, 4, 5, 7, 8, 18, 19, 26, 28, 34, 38, 39, 40, 41, 42
5G bands
Poco M8
1, 2, 3, 5, 7, 8, 20, 26, 28, 38, 40, 41, 48, 66, 71, 77, 78 SA/NSA
Redmi K40
1, 3, 28, 41, 77, 78 SA/NSA/Sub6
Speed
Poco M8
HSPA, LTE, 5G
Redmi K40
HSPA, LTE, 5G
Announced
Poco M8
2026, January 08
Redmi K40
2021, February 25
Status
Poco M8
Available. Released 2026, January 08
Redmi K40
Available. Released 2021, March 04
Dimensions
Poco M8
164 x 75.4 x 7.4 mm (6.46 x 2.97 x 0.29 in)
Redmi K40
163.7 x 76.4 x 7.8 mm (6.44 x 3.01 x 0.31 in)
Weight
Poco M8
178 g (6.28 oz)
Redmi K40
196 g (6.91 oz)
SIM
Poco M8
Nano-SIM + Nano-SIM
Redmi K40
Nano-SIM + Nano-SIM
Other
Poco M8
IP66 dust tight and water resistant (high pressure water jets) IP65 dust tight and water resistant (low pressure water jets) - Europe only Drop resistant up to 1.7m
Redmi K40
-
Type
Poco M8
AMOLED, 68B colors, 120Hz, 3840Hz PWM, HDR, 800 nits (typ), 3200 nits (peak)
Redmi K40
Super AMOLED, 120Hz, HDR10+, 1300 nits (peak)
Size
Poco M8
6.77 inches, 110.9 cm2 (~89.7% screen-to-body ratio)
Redmi K40
6.67 inches, 107.4 cm2 (~85.9% screen-to-body ratio)
Resolution
Poco M8
1080 x 2392 pixels (~388 ppi density)
Redmi K40
1080 x 2400 pixels, 20:9 ratio (~395 ppi density)
Protection
Poco M8
-
Redmi K40
Corning Gorilla Glass 5
OS
Poco M8
Android 15, up to 4 major Android upgrades, HyperOS 2
Redmi K40
Android 11, MIUI 12
Chipset
Poco M8
Qualcomm SM6475-AB Snapdragon 6 Gen 3 (4 nm)
Redmi K40
Qualcomm SM8250-AC Snapdragon 870 5G (7 nm)
CPU
Poco M8
Octa-core (4x2.4 GHz Cortex-A78 & 4x1.8 GHz Cortex-A55)
Redmi K40
Octa-core (1x3.2 GHz Kryo 585 & 3x2.42 GHz Kryo 585 & 4x1.80 GHz Kryo 585)
GPU
Poco M8
Adreno 710
Redmi K40
Adreno 650
Card slot
Poco M8
microSDXC (uses shared SIM slot)
Redmi K40
No
Internal
Poco M8
128GB 6GB RAM, 128GB 8GB RAM, 256GB 8GB RAM, 512GB 8GB RAM
Redmi K40
128GB 6GB RAM, 128GB 8GB RAM, 256GB 8GB RAM, 256GB 12GB RAM
Other
Poco M8
UFS 2.2
Redmi K40
UFS 3.1
Dual
Poco M8
50 MP, f/1.8, (wide), 1/2.88", 0.61µm, PDAF Auxiliary lens
Redmi K40
-
Features
Poco M8
LED flash, HDR, panorama
Redmi K40
Color spectrum sensor, LED flash, HDR, panorama
Video
Poco M8
4K@30fps, 1080p@30/60fps
Redmi K40
4K@30fps, 1080p@30/60/120/240/960fps, gyro-EIS
Triple
Poco M8
-
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 M8
20 MP, f/2.2, (wide), 1/4.0"
Redmi K40
20 MP, f/2.5, (wide), 1/3.4", 0.8µm
Features
Poco M8
HDR, panorama
Redmi K40
HDR
Video
Poco M8
1080p@30/60fps
Redmi K40
1080p@30fps, 720p@120fps
Loudspeaker
Poco M8
Yes, with stereo speakers (with Dolby Atmos)
Redmi K40
Yes, with stereo speakers
3.5mm jack
Poco M8
No
Redmi K40
No
Other
Poco M8
24-bit/192kHz Hi-Res audio
Redmi K40
24-bit/192kHz Hi-Res audio
WLAN
Poco M8
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Redmi K40
Wi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct
Bluetooth
Poco M8
5.1, A2DP, LE
Redmi K40
5.1, A2DP, LE
Positioning
Poco M8
GPS, GALILEO, GLONASS, QZSS, BDS
Redmi K40
GPS (L1+L5), GLONASS (G1), BDS (B1I+B2a), GALILEO (E1+E5a), QZSS (L1+L5), NavIC
NFC
Poco M8
Yes (market/region dependent)
Redmi K40
Yes
Infrared port
Poco M8
Yes
Redmi K40
Yes
Radio
Poco M8
No
Redmi K40
No
USB
Poco M8
USB Type-C 2.0, OTG
Redmi K40
USB Type-C 2.0, OTG
Sensors
Poco M8
Fingerprint (under display, optical), accelerometer, gyro, compass
Redmi K40
Fingerprint (side-mounted), accelerometer, gyro, proximity, compass
Other
Poco M8
Virtual proximity sensing
Redmi K40
-
Type
Poco M8
Si/C Li-Ion 5520 mAh
Redmi K40
Li-Po 4520 mAh
Charging
Poco M8
45W wired 18W reverse wired
Redmi K40
33W wired, PD3.0, QC3, 100% in 52 min
Colors
Poco M8
Black, Green, Silver
Redmi K40
Black, White, Aurora
Models
Poco M8
25118PC98G
Redmi K40
M2012K11AC
Price
Poco M8
$ 309.99 / £ 229.00 / € 269.90 / ₹ 20,499
Redmi K40
About 280 EUR