Compare Devices
 |  |  | |
| remove from compare | remove from compare | remove from compare | |
Brand | oppo | oppo | xiaomi |
Model | oppo a91 | oppo reno2 | xiaomi redmi k90 |
Announced | 2019 December 20 | 2019 August 28 | 2025 October 23 |
Status | Available. Released 2019 December | Available. Released 2019 September | Available. Released 2025 October 23 |
Device Body | glass front ( gorilla glass 5 ) | plastic back | plastic frame | glass front ( gorilla glass 6 ) | glass back ( gorilla glass 5 ) | aluminum frame | glass front | aluminum frame |
Dimensions | 160.2 x 73.3 x 7.9 mm ( 6.31 x 2.89 x 0.31 in ) | 160 x 74.3 x 9.5 mm ( 6.30 x 2.93 x 0.37 in ) | 157.5 x 75.3 x 8 mm ( 6.20 x 2.96 x 0.31 in ) |
Weight in gram | 172 | 189 | 206 |
SIM card | dual SIM ( Nano-SIM | dual stand-by ) | Hybrid dual SIM ( Nano-SIM | dual stand-by ) | Nano-SIM + Nano-SIM |
Water Resistance | No | No | ip68 dust tight and water resistant immersible up to 1.5meterfor 30 min |
Display type | AMOLED | 430 Luminance units ( typ ) | AMOLED | AMOLED | 68b colors | 2560hz pwmillion| 120hz | dolby vision | hdr vivid | hdr10+ | 3500 Luminance units ( the peak ) |
Display resolution | 1080 x 2400 pixels | 20 : 9 ratio ( ~408 pixel per inch density ) | 1080 x 2400 pixels | 20 : 9 ratio ( ~401 pixel per inch density ) | 1156 x 2510 pixels | 19.5 : 9 ratio ( ~419 pixel per inch density ) |
Display size | 6.4 inches | 100.4 cm2 ( ~85.5% screen to body ratio ) | 6.5 inches | 104.1 cm2 ( ~87.5% screen to body ratio ) | 6.59 inches | 106.5 cm2 ( ~89.8% screen to body ratio ) |
Display Protection | corning gorilla glass 5 | corning gorilla glass 6 | |
Operating System | android 9.0 ( pie ) | upgradable to android 11 | coloros 11 | android 9.0 ( pie ) | planned upgrade to android 10 | coloros 7.0 | android 16 | hyperos 3 |
CPU | Octa-core ( 4x2.1 GHz cortex-a73 & 4x2.0 GHz cortex-a53 ) | Octa-core ( 2x2.2 GHz kryo 470 gold & 6x1.8 GHz kryo 470 silver ) | Octa-core ( 2x4.32 GHz oryon v2 phoenix l + 6x3.53 GHz oryon v2 phoenix m ) |
Chipset | mediatek mt6771v helio p70 ( 12nm ) | Qualcomm sdm730 snapdragon 730g ( 8 nm ) | Qualcomm sm8750-ab snapdragon 8 elite ( 3 nm ) |
GPU | mali-g72 mp3 | adreno 618 | adreno 830 |
Memory card | microsdxc ( uses shared sim slot ) | No | |
Memory v1 | 128gb 4gb RAM | 128gb 8gb RAM | 256gb 12gb RAM |
Memory v2 | 128gb 8gb RAM | 256gb 8gb RAM | 256gb 8gb RAM | 512gb 12gb RAM | 512gb 16gb RAM | 1tb 16gb RAM |
Primary camera | 48 megapixel| lens aperture1.8 | 26mm ( wide ) | 1/2.0" | 0.8µm | phase detection autofocus 8 megapixel| lens aperture2.3 | 119˚ ( ultrawide ) | 1/4.0" | 1.12µm 2 megapixelb/w | lens aperture2.4 | 1/5.0" | 1.75µm 2 megapixel| lens aperture2.4 | ( depth ) | 48 megapixel| lens aperture1.7 | 26mm ( wide ) | 1/2.0" | 0.8��m | phase detection autofocus | OIS 13 megapixel| lens aperture2.4 | 53mm ( telephoto ) | 1" | 1.0��m | phase detection autofocus | 2x optical zoom 8 megapixel| lens aperture2.2 | 13mm ( ultrawide ) | 1" | 1.4��m 2 megapixelb/w | lens aperture2.4 | 1" | 1.75� | 50 megapixel| lens aperture1.9 | 24mm ( wide ) | 1/1.55" | 1.0µm | phase detection autofocus | OIS 50 megapixel| lens aperture2.2 | 60mm ( telephoto ) | phase detection autofocus | 2.5x optical zoom 8 megapixel| lens aperture2.2 | 15mm | 120˚ ( ultrawide ) |
Secondary camera | 16 megapixel| lens aperture2.0 | 26mm ( wide ) | 1/3.06" | 1.0µm | Motorized pop-up 16 megapixel| lens aperture2.0 | 26mm ( wide ) | 1/3.06" | 1.0� | 20 megapixel| ( wide ) | 1/2.0" | 0.8µm |
Loud speaker | Yes | Yes | Yes with stereo speakers |
Audio jack | Yes | Yes | No |
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/6/7 | dual-band | Wi-Fi Direct |
Bluetooth | 4.2 | a2dp | le | 5.0 | a2dp | le | 5.4 | a2dp | le | lhdc 5.0 | asha |
GPS | Yes with a-gps glonass bds | Yes with a-gps glonass galileo bds | |
NFC | No | Yes | Yes |
Radio | FM Radio | FM Radio | No |
USB | USB Type-C 2.0 | USB on-the-go | USB Type-C 3.1.0 | USB on-the-go | USB Type-C | otg |
Sensors | fingerprint ( under display | optical ) | accelerometer | gyroscope | proximity | compass | fingerprint ( under display | optical ) | accelerometer | gyroscope | proximity | compass | fingerprint ( under display | ultrasonic ) | accelerometer | gyroscope | proximity | compass |
Battery | li-po 4025 mAh | Non-removable | li-po 4000 mAh | Non-removable | si/c li-po 7100 mAh |
Battery Charge | Fast charging 20w | 50% in 30 min ( advertised ) | vooc 3.0 | Fast charging 20w | vooc 3.0 | 100w wired | pd3.0 | qc3+ | 100w pps | 22.5w reverse wired |
Colors | black color gradations, white color gradations, blue color gradations, red | black color gradations, ocean color color gradations, sunset color color gradations | black, white, blue, purple |
Network technology | gsm / cdma / hspa / lte | gsm / hspa / lte | gsm / hspa / lte / 5g |
5G bands | 1 | 3 | 5 | 7 | 8 | 28 | 66 | 38 | 40 | 41 | 48 | 77 | 78 sa/nsa | ||
Network speed | hspa 42.2/11.5 mbps lte-a | hspa 42.2/5.76 mbps lte-a | hspa lte 5g |
GPRS | |||
EDGE | |||
Approx price |
|
|
|
290 GBP
349 EUR
3320 NOK
3500 SEK
21500 RUB
350 USD
1810 BRL
500 AUD
450000 KRW
46000 JPY
480 SGD
1530 MYR
1260 AED
5800 ZAR
