Compare Devices
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Brand | oppo | samsung | vivo |
Model | oppo k9 pro | samsung galaxy watch8 classic | vivo y77e |
Announced | 2021 September 26 | 2025 July 09 | 2022 August 12 |
Status | Available. Released 2021 October 20 | Available. Released 2025 July 25 | Available. Released 2022 August 12 |
Device Body | glass front ( sapphire crystal ) | stainless steel frame | glass front | plastic frame | plastic back | |
Dimensions | 158.7 x 73.5 x 8.5 mm ( 6.25 x 2.89 x 0.33 in ) | 46.4 x 46 x 10.6 mm ( 1.83 x 1.81 x 0.42 in ) | 164 x 75.8 x 8.3 mm ( 6.46 x 2.98 x 0.33 in ) |
Weight in gram | 180 | 63.5 | 194 |
SIM card | dual SIM ( Nano-SIM | dual stand-by ) | dual SIM ( Nano-SIM | dual stand-by ) | |
Water Resistance | No | ip68 dust tight and water resistant immersible up to 50m/50 meter depth - 10 minutes | No |
Display type | AMOLED | 120hz | HDR10 | 430 Luminance units ( typ ) | 800 Luminance units ( the peak ) | Super AMOLED | 3000 Luminance units ( the peak ) | IPS LCD |
Display resolution | 1080 x 2400 pixels | 20 : 9 ratio ( ~409 pixel per inch density ) | 438 x 438 pixels ( ~327 pixel per inch density ) | 1080 x 2408 pixels | 20 : 9 ratio ( ~401 pixel per inch density ) |
Display size | 6.43 inches | 99.8 cm2 ( ~85.6% screen to body ratio ) | 1.34 inches | 6.58 inches | 104.3 cm2 ( ~83.9% screen to body ratio ) |
Display Protection | sapphire crystal | ||
Operating System | android 11 | coloros 11.3 | android wear Operating system 6 | one ui 8 watch | android 12 | originos ocean |
CPU | Octa-core ( 1x3.0 GHz cortex-a78 & 3x2.6 GHz cortex-a78 & 4x2.0 GHz cortex-a55 ) | penta-core | Octa-core ( 2x2.4 GHz cortex-a76 & 6x2.0 GHz cortex-a55 ) |
Chipset | mediatek dimensity 1200 ( 6 nm ) | exynos w1000 ( 3 nm ) | mediatek dimensity 810 ( 6 nm ) |
GPU | mali-g77 mc9 | mali-g68 | mali-g57 mc2 |
Memory card | No | No | microsdxc ( uses shared sim slot ) |
Memory v1 | 128gb 8gb RAM | 64gb 2gb RAM | 128gb 6gb RAM |
Memory v2 | 256gb 12gb RAM | 256gb 8gb RAM | 128gb 8gb RAM | 256gb 8gb RAM | |
Primary camera | 64 megapixel| lens aperture1.7 | 26mm ( wide ) | phase detection autofocus 8 megapixel| lens aperture2.2 | 119˚ ( ultrawide ) 2 megapixel| lens aperture2.4 | ( macro ) | | 13 megapixel| lens aperture2.2 | ( wide ) | phase detection autofocus 2 megapixel| lens aperture2.4 | ( macro ) |
Secondary camera | 16 megapixel| lens aperture2.4 | ( wide ) | | 8 megapixel| lens aperture2.0 | ( wide ) |
Loud speaker | Yes with stereo speakers | Yes | Yes |
Audio jack | Yes | 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 | dual-band | Wi-Fi 802.11 a/b/g/n/ac | dual-band | Wi-Fi Direct |
Bluetooth | 5.2 | a2dp | le | aptx hd | 5.3 | a2dp | le | 5.1.0 | a2dp | le | aptx hd |
GPS | |||
NFC | Yes | Yes | No |
Radio | No | No | No |
USB | USB Type-C 2.0 | otg | No | USB Type-C 2.0 | otg |
Sensors | fingerprint ( under display | optical ) | accelerometer | gyroscope | proximity | compass | accelerometer | gyroscope | heart rate | barometer | altimeter | compass | spo2 | temperature ( skin ) | bioactive | antioxidant index | fingerprint ( side-mounted ) | accelerometer | proximity | compass |
Battery | li-po 4500 mAh | Non-removable | Li-lon 445 mAh | 5000 mAh | Non-removable |
Battery Charge | 60w wired | 50% in 16 min ( advertised ) | 10w wireless | 18w wired |
Colors | black, aurora color | black, white | black, blue color gradations, pink |
Network technology | gsm / cdma / hspa / cdma2000 / lte / 5g | gsm / hspa / lte | gsm / cdma / hspa / cdma2000 / lte / 5g |
5G bands | 1 | 28 | 41 | 77 | 78 sa/nsa | 1 | 5 | 8 | 28 | 41 | 77 | 78 sa/nsa | |
Network speed | hspa lte-a 5g | hspa lte | hspa lte-a 5g |
GPRS | |||
EDGE | |||
Approx price |
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310 GBP
365 EUR
3560 NOK
3800 SEK
23000 RUB
370 USD
1940 BRL
530 AUD
480000 KRW
49000 JPY
510 SGD
1630 MYR
1350 AED
6200 ZAR
