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日本語 Compare Devices
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Brand | samsung | vivo | xiaomi |
Model | samsung galaxy a8 (2018) | vivo v17 (china) | xiaomi redmi note 9 4g |
Announced | 2017 December | 2019 November | 2020 November 26 |
Status | Available. Released 2018 January | Available. Released 2019 December | Available. Released 2020 November 26 |
Device Body | glass front ( gorilla glass 3 ) | plastic frame | plastic back | ||
Dimensions | 149.2 x 70.6 x 8.4 mm ( 5.87 x 2.78 x 0.33 in ) | 159.3 x 75.2 x 8.7 mm ( 6.27 x 2.96 x 0.34 in ) | 162.3 x 77.3 x 9.6 mm ( 6.39 x 3.04 x 0.38 in ) |
Weight in gram | 172 | 186.7 | 198 |
SIM card | single SIM ( Nano-SIM ) or dual SIM ( Nano-SIM | dual stand-by ) | Hybrid dual SIM ( Nano-SIM | dual stand-by ) | dual SIM ( Nano-SIM | dual stand-by ) |
Water Resistance | water repellent coating | ||
Display type | Super AMOLED | Super AMOLED capacitive touchscreen | 16millioncolors | IPS LCD | 400 Luminance units ( typ ) |
Display resolution | 1080 x 2220 pixels | 18.5 : 9 ratio ( ~441 pixel per inch density ) | 1080 x 2340 pixels | 19.5 : 9 ratio ( ~404 pixel per inch density ) | 1080 x 2340 pixels | 19.5 : 9 ratio ( ~395 pixel per inch density ) |
Display size | 5.6 inches | 79.6 cm2 ( ~75.6% screen to body ratio ) | 6.38 inches | 99.9 cm2 ( ~83.4% screen to body ratio ) | 6.53 inches | 104.7 cm2 ( ~83.4% screen to body ratio ) |
Display Protection | corning gorilla glass 3 | ||
Operating System | android 7.1.1 ( nougat ) | upgradable to android 9.0 ( pie ) | one ui | android 9.0 ( pie ) ; funtouch 9.2 | android 10 | miui 12 |
CPU | Octa-core ( 2x2.2 GHz cortex-a73 & 6x1.6 GHz cortex-a53 ) | Octa-core ( 4x2.0 GHz kryo 260 gold & 4x1.8 GHz kryo 260 silver ) | Octa-core ( 4x2.0 GHz kryo 260 gold & 4x1.8 GHz kryo 260 silver ) |
Chipset | exynos 7885 ( 14 nm ) | Qualcomm sdm665 snapdragon 665 ( 11 nm ) | Qualcomm sm6115 snapdragon 662 ( 11 nm ) |
GPU | mali-g71 | adreno 610 | adreno 610 |
Memory card | microsdxc ( dedicated slot ) | microsdxc ( uses shared sim slot ) | microsdxc ( dedicated slot ) |
Memory v1 | 32gb 4gb RAM | 128gb 8gb RAM | 128gb 4gb RAM |
Memory v2 | 64gb 4gb RAM | 128gb 6gb RAM | 128gb 8gb RAM | 256gb 8gb RAM | |
Primary camera | 16 megapixel| lens aperture1.7 | 26mm ( wide ) | 1/2.8⬠| 1.12µm | phase detection autofocus | 48 megapixel| lens aperture1.8 | ( wide ) | 1/2.0 | 0.8µm | phase detection autofocus 8 megapixel| lens aperture2.2 | 13mm ( ultrawide ) | 1/4.0 | 1.12µm 2 megapixel| lens aperture2.4 | ( macro ) | 1/5.0 | 1.75µm 2 megapixel| lens aperture2.4 | ( depth ) | 48 megapixel| lens aperture1.8 | 26mm ( wide ) | 1/2.0" | 0.8µm | phase detection autofocus 8 megapixel| lens aperture2.2 | 120˚ ( ultrawide ) | 1/4.0" | 1.12µm 2 megapixel| lens aperture2.4 | ( depth ) |
Secondary camera | 16 megapixel| lens aperture1.9 | 26mm ( wide ) | 1/3.06" | 1.0µm 8 megapixel| lens aperture1.9 | 24mm ( wide ) | 1/4" | 1.12µm | 32 megapixel| lens aperture2.0 | 26mm ( wide ) | 1/2.8 | 0.8µm | 8 megapixel| lens aperture2.0 | 27mm ( wide ) | 1/4.0" | 1.12µm |
Loud speaker | Yes | Yes | Yes with stereo speakers |
Audio jack | Yes | Yes | Yes |
WLAN | Wi-Fi 802.11 a/b/g/n/ac | dual-band | Wi-Fi Direct | hotspot | Wi-Fi 802.11 a/b/g/n/ac | dual-band | Wi-Fi Direct | hotspot | Wi-Fi 802.11 a/b/g/n/ac | dual-band | Wi-Fi Direct |
Bluetooth | 5.0 | a2dp | edr | le | 5.0 | a2dp | le | 4.2 | a2dp |
GPS | Yes with a-gps glonass bds | Yes with a-gps glonass galileo bds | |
NFC | Yes | Yes | No |
Radio | FM Radio | FM Radio | FM Radio |
USB | USB Type-C 2.0 | 2.0 | Type-C 1.0.0 reversible connector | USB on-the-go | USB Type-C 2.0 | otg |
Sensors | fingerprint ( rear-mounted ) | accelerometer | gyroscope | proximity | compass | barometer | fingerprint ( under display | optical ) | accelerometer | gyroscope | proximity | compass | fingerprint ( side-mounted ) | accelerometer | proximity | compass |
Battery | Li-lon 3000 mAh | Non-removable | Non-removable li-po 4500 mAh battery | li-po 6000 mAh | Non-removable |
Battery Charge | 18w wired | 2.0.5w reverse wired | ||
Colors | black, grey color gradations, gold, blue | blue color gradations, blue color gradations | gray, green, blue, orange |
Network technology | gsm / hspa / lte | gsm / hspa / lte | gsm / cdma / hspa / lte |
5G bands | |||
Network speed | hspa 42.2/5.76 mbps lte-a (3ca) cat11 600/75 mbps | hspa 42.2/5.76 mbps lte-a (2ca) cat6 300/150 mbps | hspa lte-a |
GPRS | |||
EDGE | |||
Approx price |
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130 GBP
168 EUR
1530 NOK
1700 SEK
9900 RUB
160 USD
840 BRL
230 AUD
210000 KRW
22000 JPY
220 SGD
710 MYR
580 AED
2700 ZAR