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Brand |
vivo | xiaomi | |
Model |
vivo y28 4g | xiaomi redmi k30 5g | |
Announced |
2024 June 15 | 2019 December 10 | |
Status |
Available. Released 2024 July | Available. Released 2020 January 07 | |
Device Body |
glass front | plastic frame | plastic back | glass front ( gorilla glass 5 ) | glass back ( gorilla glass 5 ) | aluminum frame | |
Dimensions |
165.7 x 76 x 8 mm ( 6.52 x 2.99 x 0.31 in ) | 165.3 x 76.6 x 8.8 mm ( 6.51 x 3.02 x 0.35 in ) | |
Weight in gram |
199 | 208 | |
SIM card |
Hybrid dual SIM ( Nano-SIM | dual stand-by ) | Hybrid dual SIM ( Nano-SIM | dual stand-by ) | |
Water Resistance |
ip64 dust/water resistant | No | |
Display type |
IPS LCD | 90hz | 760 Luminance units ( typ ) | 1000 Luminance units ( hbmillion) | IPS LCD | 120hz | HDR10 | |
Display resolution |
720 x 1608 pixels | 20 : 9 ratio ( ~264 pixel per inch density ) | 1080 x 2400 pixels | 20 : 9 ratio ( ~395 pixel per inch density ) | |
Display size |
6.68 inches | 107.4 cm2 ( ~85.3% screen to body ratio ) | 6.67 inches | 107.4 cm2 ( ~84.8% screen to body ratio ) | |
Display Protection |
corning gorilla glass 5 | ||
Operating System |
android 14 | funtouch 14 | android 10 | upgradable to android 11 | miui 12 | |
CPU |
Octa-core ( 2x2.0 GHz cortex-a75 & 6x1.8 GHz cortex-a55 ) | Octa-core ( 1x2.4 GHz kryo 475 prime & 1x2.2 GHz kryo 475 gold & 6x1.8 GHz kryo 475 silver ) | |
Chipset |
mediatek helio g85 ( 12 nm ) | Qualcomm sm7250 snapdragon 765g 5g ( 7 nm ) | |
GPU |
mali-g52 mc2 | adreno 620 | |
Memory card |
microsdxc ( uses shared sim slot ) | No | |
Memory v1 |
128gb 4gb RAM | 64gb 6gb RAM | |
Memory v2 |
128gb 6gb RAM | 128gb 8gb RAM | 256gb 8gb RAM | 128gb 6gb RAM | 128gb 8gb RAM | 256gb 8gb RAM | |
Primary camera |
50 megapixel| lens aperture1.8 | ( wide ) | phase detection autofocus 2 megapixel| lens aperture2.4 | ( depth ) |
64 megapixel| lens aperture1.9 | 26mm ( wide ) | 1/1.72" | 0.8µm | phase detection autofocus 8 megapixel| lens aperture2.2 | 13mm ( ultrawide ) | 1/4.0" | 1.12µm 5 megapixel| lens aperture2.4 | ( macro ) 2 megapixel| lens aperture2.4 | ( depth ) |
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Secondary camera |
8 megapixel| lens aperture2.1 | ( wide ) |
20 megapixel| lens aperture2.2 | 27mm ( wide ) | 1/3.4" | 0.8µm 2 megapixel| lens aperture2.4 | 1/5" | 1.75µm | depth sensor |
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Loud speaker |
Yes with stereo speakers | Yes | |
Audio jack |
Yes | Yes | |
WLAN |
Wi-Fi 802.11 a/b/g/n | dual-band | Wi-Fi 802.11 a/b/g/n/ac | dual-band | Wi-Fi Direct | hotspot | |
Bluetooth |
5.0 | a2dp | le | 5.1.0 | a2dp | le | aptx hd | |
GPS |
Yes with dual-band a-gps glonass bds galileo qzss | ||
NFC |
No | Yes | |
Radio |
FM Radio | FM Radio | |
USB |
USB Type-C 2.0 | otg | USB Type-C 2.0 | USB on-the-go | |
Sensors |
fingerprint ( side-mounted ) | accelerometer | proximity | compass | fingerprint ( side-mounted ) | accelerometer | gyroscope | proximity | compass | |
Battery |
6000 mAh | li-po 4500 mAh | Non-removable | |
Battery Charge |
44w wired | Fast charging 30w | 100% in 57 min ( advertised ) | |
Colors |
green color gradations, orange color gradations | blue, red, purple, white | |
Network technology |
gsm / hspa / lte | gsm / hspa / lte / 5g | |
5G bands |
41 | 78 sub6 | ||
Network speed |
hspa lte | hspa 42.2/5.76 mbps lte-a 5g (2+ gbps dl) | |
GPRS |
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EDGE |
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Approx price |
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110 GBP
135 EUR
1290 NOK
1400 SEK
8300 RUB
140 USD
700 BRL
190 AUD
180000 KRW
18000 JPY
190 SGD
590 MYR
490 AED
2300 ZAR
