Vivo iQOO vs Xiaomi Mi 9
| Type | Touch | Touch |
| Dimensions | 157.69 x 75.20 x 8.51 mm | 157.50 x 74.67 x 7.61 mm |
| Weight | 196.00 g | 173.00 g |
| Display size | 6.41" | 6.39" |
| Display | Color / Super AMOLED 16M colors 1080 x 2340 px (6.41") 402 ppi | Color / AMOLED 16M colors 1080 x 2340 px (6.39") 403 ppi |
| Display protection |   | Corning Gorilla Glass Buy screen protector
|
| Additional display | | |
| Protection of the secondary display | | |
| Standard battery | Li-Ion 4000 mAhBuy powerbank
| Li-Po 3300 mAhBuy powerbank
|
| Quick battery charging | Fast Charging | Quick Charge 4.0+ |
| Wireless battery charging | | Qi |
| Internal memory | 128 GB, 256 GB | 128 GB, 64 GB |
| RAM memory | 6 GB, 8 GB, 12 GB | 6 GB, 8 GB |
| Memory cards | | |
| Operating system | Android 9.0 Pie | Android 9.0 Pie |
| Interface | Funtouch 9 | MIUI 10 |
| Processor | Qualcomm Snapdragon 855 | Qualcomm Snapdragon 855 |
| Processor clock | 2840 MHz | 2840 MHz |
| GPU | Adreno 640 | Adreno 640 |
| Touchscreen |  | |
| DualSIM | | |
| SIM cards standard |  | DualSIM(nanoSIM, nanoSIM) |
| DualSIM mode | dual standby | dual standby |
| Hybrid DualSIM | | |
| Announced | 1Q 2019 | 1Q 2019 |
| Other names | V1824BA; V1824A | Mi9; M1902F1A; M1902F1T |
| GSM frequencies | 850 900 1800 1900 | 850 900 1800 1900 |
| UMTS | 850 900 1700 1900 2100 | 850 900 1700 1900 2100 |
| LTE standard | FDD LTE: 2100, 1900, 1800, 1700, 900, 850 TDD LTE: 2600, 2500, 2300, 2100, 1900 | FDD LTE: 2600, 2100, 1900, 1800, 1700, 900, 850, 700 TDD LTE: 2600, 2500, 2300, 2100, 1900 |
| CDMA | 850 | 850 CDMA2000 1xEV-DO |
| Standard TD-SCDMA | 1900 2000 | 1900 2000 |
| UMA | | |
CAMERAS - BACK
| First camera | | |
| Photo sensor model | | Sony IMX586 |
| Photo matrix | 12 Mpx | 48 Mpx |
| Resolution | | 8000x6000 px |
| Optical zoom | | |
| Digital zoom | | 10x |
| Flash | LED | 2x LED |
| Dual-colour LED flash | | |
| Video resolution | | 3840x2160 px |
| Video formats | | H.263, H.264, H.265, MPEG4 - 60 fps |
| Additional | f/1.79 | AF, Laser AF, EIS, f/1.75 |
| Second camera | | |
| Photo sensor model | | Samsung S5K3M5 |
| Photo matrix | 13 Mpx | 12 Mpx |
| Optical zoom | | |
| Flash | LED | 2x LED |
| Dual-colour LED flash | | |
| Video formats | | H.263, H.264, H.265, MPEG4 - 60 fps |
| Additional | f/2.4 | AF, Laser AF, f/2.2 |
| Third camera | | |
| Photo sensor model | | Sony IMX481 |
| Photo matrix | 2 Mpx | 16 Mpx |
| Optical zoom | | |
| Flash | LED | 2x LED |
| Dual-colour LED flash | | |
| Video formats | | H.263, H.264, H.265, MPEG4 - 60 fps |
| Additional | f/2.4 | AF, Laser AF, f/2.2 |
CAMERAS - FRONT
| First camera | | |
| Photo sensor model | | Sony |
| Photo matrix | 12 Mpx | 20 Mpx |
| Optical zoom | | |
| Flash | | |
| Dual-colour LED flash | | |
| Video resolution | | 1920x1080 px |
| Video formats | | H.263, H.264, H.265, MPEG4 - 60 fps |
| Additional | f/2.0 | f/2.0 |
SENSORS
| Accelerometer | | |
| Proximity | | |
| Light | | |
| Magnetometer | | |
| Gyroscope | | |
| Barometer | | |
| Altimeter | | |
| Gravity | | |
| Hall-effect | | |
| Iris scanner | | |
| Fingerprint scanner | | |
| Thermometer | | |
| Hygrometer | | |
Data transfer
| xHTML | | |
| WAP | v2.0 | v2.0 |
| HSCSD | | |
| HSDPA | | 42.00 Mbit/s |
| HSUPA | | 5.76 Mbit/s |
| HSPA | | |
| HSPA+ | | |
| LTE DL | | |
| LTE UP | | |
| WIMAX+ | | |
| GPRS | | |
| EDGE | | |
| Bluetooth | | v5.0 |
| A2DP Profile | | |
| HDMI | | |
| WiFi | v802.11 a/b/g/n/ac | v802.11 a/b/g/n/ac |
| WiFi frequencies | 2,4 GHz; 5 GHz | 2,4 GHz; 5 GHz |
| WiFi Direct | | |
| WiFi Display | | |
| DLNA | | |
| Miracast | | |
| WiFi hotspot | | |
| IrDA | | |
| USB | v2.0 Type-C | v2.0 Type-C |
| GPS | | |
| A-GPS | | |
| GLONASS | | |
| Beidou | | |
| Galileo | | |
| NFC | | |
COMMUNICATION AND MESSAGING
| Call waiting | | |
| Conferency | | |
| Call forwarding | | |
| Push To Talk | | |
| Instant Messenger | | |
| SMS | | |
| EMS | | |
| MMS | | |
| Dictionary | T9 | T9 |
| Swype | | |
| e-mail client | POP3, IMAP4, SMTP | POP3, IMAP4, SMTP |
| Hardware QWERTY keyboard | | |
| RSS Reader | | |
Multimedia
| MP3 | | |
| Stereo speakers | | |
| Audio Jack | 3.5 mm | |
| HD Voice | | |
| Sound formats | AAC, AMR, APE, FLAC, MIDI, OGG, WAV, WMA | AAC, AAC+, AMR, APE, AWB, FLAC, WAV, WMA, eAAC+ |
| Polyphony | | |
| Video ringtone | | |
| Ring composer | | |
| Games | | |
| Java | ART | ART |
| Videophone | | |
| DVB-H television | | |
| TV-Out | | |
PIM AND ADDITIONAL FUNCTIONS
| Watch | | |
| Stopwatch | | |
| Alarm | | |
| Calculator | | |
| Currency converter | | |
| Organizer | | |
| Calendar | | |
| Flight mode | | |
| SyncML | | |
| Data and fax | | |
| Screensaver | | |
| Themes | | |
| Interchangeable covers | | |
| Voice dial | | |
| Speakerphone | | |
| Recorder | | |
| Vibrations | | |