Compare Devices
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Brand | xiaomi | xiaomi | microsoft |
Model | xiaomi redmi k40 gaming | xiaomi redmi note 15 | microsoft lumia 550 |
Announced | 2021 April 27 | 2025 December 18 | 2015 October. Released 2015 December |
Status | Available. Released 2021 April 30 | Available. Released 2026 January 06 | discontinued |
Device Body | glass front ( gorilla glass 5 ) | glass back ( gorilla glass 5 ) | glass front | plastic frame | plastic back | |
Dimensions | 161.9 x 76.9 x 8.3 mm ( 6.37 x 3.03 x 0.33 in ) | 164 x 75.4 x 7.4 mm ( 6.46 x 2.97 x 0.29 in ) | 136.1 x 67.8 x 9.9 mm ( 5.36 x 2.67 x 0.39 in ) |
Weight in gram | 205 | 178 | |
SIM card | dual SIM ( Nano-SIM | dual stand-by ) | Nano-SIM + Nano-SIM | Nano-SIM |
Water Resistance | No | ip66 dust tight and water resistant high pressure water jets | No |
Display type | OLED | 1b colors | 120hz | hdr10+ | 500 Luminance units ( typ ) | AMOLED | 68b colors | 120hz | 3840hz pwmillion| hdr10+ | 800 Luminance units ( typ ) | 3200 Luminance units ( the peak ) | IPS LCD | |
Display resolution | 1080 x 2400 pixels | 20 : 9 ratio ( ~395 pixel per inch density ) | 1080 x 2392 pixels ( ~388 pixel per inch density ) | 720 x 1280 pixels | 16 : 9 ratio ( ~315 pixel per inch density ) |
Display size | 6.67 inches | 107.4 cm2 ( ~86.3% screen to body ratio ) | 6.77 inches | 110.9 cm2 ( ~89.7% screen to body ratio ) | 4.7 inches | 59.7 cm2 ( ~64.7% screen to body ratio ) |
Display Protection | corning gorilla glass 5 | scratch/drop-resistant glass | mohs level 5 | |
Operating System | android 11 | miui 12.5 | android 15 | up to 4 major android upgrades | hyperos 2 | microsoft windows 10 |
CPU | Octa-core ( 1x3.0 GHz cortex-a78 & 3x2.6 GHz cortex-a78 & 4x2.0 GHz cortex-a55 ) | Octa-core ( 4x2.4 GHz cortex-a78 & 4x1.8 GHz cortex-a55 ) | Quad-core 1.1 GHz cortex-a7 |
Chipset | mediatek mt6893 dimensity 1200 ( 6 nm ) | Qualcomm sm6475-ab snapdragon 6 generation 3 ( 4 nm ) | Qualcomm msm8909 snapdragon 210 ( 28 nm ) |
GPU | mali-g77 mc9 | adreno 710 | adreno 304 |
Memory card | No | microsdxc ( uses shared sim slot ) | microsdxc ( dedicated slot ) |
Memory v1 | 128gb 6gb RAM | 128gb 6gb RAM | 8gb 1gb RAM |
Memory v2 | 128gb 8gb RAM | 128gb 12gb RAM | 256gb 8gb RAM | 256gb 12gb RAM | 128gb 8gb RAM | 256gb 8gb RAM | 512gb 8gb RAM | 512gb 12gb RAM | |
Primary camera | 64 megapixel| lens aperture1.7 | 26mm ( wide ) | 1/2.0" | 0.7µm | phase detection autofocus 8 megapixel| lens aperture2.2 | 120˚ ( ultrawide ) 2 megapixel| lens aperture2.4 | ( macro ) | 108 megapixel| lens aperture1.7 | 24mm ( wide ) | 1/1.67" | 0.64µm | phase detection autofocus | OIS 8 megapixel| lens aperture2.2 | 16mm ( ultrawide ) | 1/4.0" | 1.12µm | 5 megapixel| lens aperture2.4 | 1/4.0" | Auto focus |
Secondary camera | 16 megapixel| lens aperture2.5 | ( wide ) | 1/3.06" 1.0µm | 20 megapixel| lens aperture2.2 | 21mm ( wide ) | 1/4.0" | 2 megapixel| lens aperture2.8 |
Loud speaker | Yes with stereo speakers | Yes with stereo speakers ( with Dolby Atmos ) | Yes |
Audio jack | No | No | Yes |
WLAN | Wi-Fi 802.11 a/b/g/n/ac/6 | dual-band | Wi-Fi Direct | Wi-Fi 802.11 a/b/g/n/ac | dual-band | Wi-Fi Direct | Wi-Fi 802.11 b/g/n | hotspot |
Bluetooth | 5.2 | a2dp | le | 5.1.0 or 5.3 | a2dp | le | 4.1.0 | a2dp |
GPS | |||
NFC | Yes | Yes ( market/region dependent ) | No |
Radio | No | No | FM Radio |
USB | USB Type-C 2.0 | otg | USB Type-C 2.0 | otg | microusb 2.0 |
Sensors | fingerprint ( side-mounted ) | accelerometer | gyroscope | compass | barometer | color spectrum | fingerprint ( under display | optical ) | accelerometer | gyroscope | compass | accelerometer | proximity |
Battery | li-po 5065 mAh | Non-removable | si/c Li-lon 5520 mAh | Li-lon 2100 mAh | removable |
Battery Charge | 67w wired | pd3.0 | qc3 | 100% in 42 min ( advertised ) | 45w wired | 18w reverse wired | |
Colors | black, gray, silver, yellow color gradations | black, blue color gradations, mist color color gradations | black, white |
Network technology | gsm / cdma / hspa / cdma2000 / lte / 5g | gsm / hspa / lte / 5g | gsm / hspa / lte |
5G bands | 1 | 3 | 28 | 41 | 77 | 78 sa/nsa/sub6 | 1 | 2 | 3 | 5 | 7 | 8 | 12 | 20 | 26 | 28 | 38 | 40 | 41 | 48 | 66 | 71 | 77 | 78 sa/nsa - international | |
Network speed | hspa lte-a 5g | hspa lte 5g | hspa 42.2/5.76 mbps lte cat4 150/50 mbps |
GPRS | |||
EDGE | |||
Approx price |
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220 GBP
268 EUR
2570 NOK
2700 SEK
16600 RUB
270 USD
1400 BRL
380 AUD
350000 KRW
36000 JPY
370 SGD
1180 MYR
970 AED
4500 ZAR
