Side by side comparison and review of Xiaomi MI 8 Pro and Vivo X51 5G. Compare sizes, cameras, batteries, memory capacities and other key specifications and features to simplify the choice of your perfect phone. Our goal is to make it easier for you to decide on the phone that will best meet your expectations by revealing the main differences between the products.
| DESIGN AND DIMENSIONS | Xiaomi MI 8 Pro | Vivo X51 5G |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | - | V2006 | |
| Form Factor | Touch | Touch | |
| Height | 154.9 mm | 158.46 mm | Vivo X51 5G has greater height than Xiaomi MI 8 Pro. |
| Width | 74.8 mm | 72.8 mm | Xiaomi MI 8 Pro has greater width than Vivo X51 5G. |
| Depth | 7.6 mm | 8.04 mm | Xiaomi MI 8 Pro is narrower than Xiaomi MI 8 Pro. |
| Weight | 177 g | 181.5 g | Xiaomi MI 8 Pro is lighter than Xiaomi MI 8 Pro. |
| Body Colour | Transparent titanium | Alpha grey | |
| Waterproof (Water-resistant) | - | - | |
| IP rating | - | IP53 | |
| SAR Value | 1.531 W/kg (body), 0.969 W/kg (head) | 1.205 W/kg (head), 1.239 W/kg (body), 3.086 W/kg (limb) | |
| Connector Type | USB Type-C - 24 pin USB-C | USB Type-C - 24 pin USB-C | |
| SIM Card Type (Size) | Nano SIM | Nano SIM | |
| SIM Card Qty | Dual-SIM | Dual-SIM |
| DISPLAY | Xiaomi MI 8 Pro | Vivo X51 5G |
|---|
| Display Type | OLED display | OLED display | |
|---|---|---|---|
| Display Technology | AMOLED | AMOLED | |
| Screen Size (Display Size) | 6.21" | 6.56" | Vivo X51 5G has larger screen size than Xiaomi MI 8 Pro. |
| Screen Resolution (Display Resolution) | 2248 x 1080 pixels | 2376 x 1080 pixels | Vivo X51 5G has better screen resolution than Xiaomi MI 8 Pro. |
| Display Format | Full HD+ | - | |
| Pixel Density | 402 ppi | 398 ppi | Xiaomi MI 8 Pro has better pixel density than Vivo X51 5G. |
| Aspect Ratio | 18.7:9 | 19.8:9 | |
| Max Brightness | 600 cd/m² | 500 cd/m² | Xiaomi MI 8 Pro has better display brightness than Vivo X51 5G. |
| Colour Depth | - | 16.7 million colours | |
| Contrast Ratio | 60000:1 | - | |
| HDR | Yes | - | Xiaomi MI 8 Pro has HDR. |
| Display Enhancement Technology | Sunlight mode | - | |
| Display Features | Always-on display, Reading mode, Colour temperature adjustment, DCI-P3 Wide colour gamut | - |
| PROCESSOR | Xiaomi MI 8 Pro | Vivo X51 5G |
|---|
| Processor Type (CPU) | Qualcomm Snapdragon 845 AIE | Qualcomm Snapdragon 765G | |
|---|---|---|---|
| Clock Speed | 2.8 GHz | 2.4 GHz | Xiaomi MI 8 Pro has higher clock speed than Vivo X51 5G. |
| Processor Core Qty | 8-core | 8-core | Both phones have the same number of phone cores. |
| 64-bit Architecture | Yes | - | Xiaomi MI 8 Pro has 64-bit architecture. |
| Graphics System (GPU) | Qualcomm ADRENO 630 | - |
| MEMORY | Xiaomi MI 8 Pro | Vivo X51 5G |
|---|
| RAM | LPDDR4X SDRAM - 8 GB | 8 GB | Both phones have the same RAM size. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 128 GB | 256 GB | Vivo X51 5G has more internal memory than Xiaomi MI 8 Pro. |
| CAMERA | Xiaomi MI 8 Pro | Vivo X51 5G |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 2 | 4 | |
|---|---|---|---|
| Sensor Resolution | 12 Megapixel | 48 Megapixel | Vivo X51 5G has better camera resolution than Xiaomi MI 8 Pro. |
| Lens Type | Wide-angle lens | - | |
| Lens Aperture | F/1.8 | F/1.6 | Vivo X51 5G has better lens aperture than Xiaomi MI 8 Pro. |
| Optical Image Stabiliser (OIS) | 4-axis OIS (Optical Image Stabilisation) | - | Xiaomi MI 8 Pro has optical stabilisation. |
| Focus Adjustment | Automatic | Automatic | |
| Laser Auto Focus | - | Yes | |
| Special Effects | HDR | HDR | |
| Camera Modes | Burst mode, Panorama, low-light shots, portrait mode, AI Beautify, Portrait mode with background blurring | Panorama, Time-lapse mode, Pro mode, Live Photos, AI makeup, Portrait, Super Night mode, astro mode, pro sports mode, DOC mode | |
| Face Recognition (Face ID) | Face recognition | - | Xiaomi MI 8 Pro has face detection. |
| Light Source | LED flash | LED flash | |
| Video Resolutions | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps, Slo-mo video 1280 x 720 (720p) at 240 fps, 3840 x 2160 (4K) at 30 fps, Slo-mo video 1920 x 1080 (1080p) at 240 fps | - | |
| Camera Features (Functions) | Dual Pixel Autofocus technology, AI Dual camera, AI scene detection, AI Beautify, AI studio lighting, AI short video editing, AI high-res photos, AI Dynamic | 60x Hyper Zoom, Gimbal Super Night Master, Gimbal Super Sport Expert |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | 12 Megapixel | 13 Megapixel | Vivo X51 5G has better second camera resolution than Xiaomi MI 8 Pro. |
|---|---|---|---|
| Lens Type (2nd Camera) | Telephoto lens | - | |
| Lens Aperture (2nd Camera) | F/2.4 | F/2.46 | Xiaomi MI 8 Pro has better second camera lens aperture than Xiaomi MI 8 Pro. |
| Camera Features (2nd Camera) | Portrait lens | - |
| THIRD CAMERA |
|---|
| Sensor Resolution (3rd Camera) | - | 8 Megapixel | |
|---|---|---|---|
| Lens Type (3rd Camera) | - | Wide-angle lens | |
| Lens Aperture (3rd Camera) | - | F/2.2 |
| FOURTH CAMERA |
|---|
| Sensor Resolution (4th Camera) | - | 8 Megapixel | |
|---|---|---|---|
| Lens Type (4th Camera) | - | Telephoto lens | |
| Lens Aperture (4th Camera) | - | F/3.4 |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 20 Megapixel | 32 Megapixel | Vivo X51 5G has better front camera resolution than Xiaomi MI 8 Pro. |
| Lens Aperture (Front) | - | F/2.45 | |
| Special Effects (Front) | Mirror | HDR | |
| Camera Modes (Front) | AI portrait mode, 3D beauty mode | Live Photos, Portrait | |
| Face Recognition (Face ID) | Face recognition | - | Xiaomi MI 8 Pro has face detection. |
| Camera Features (Front) | Self-timer, 3D Beautify | 2 x digital zoom |
| BATTERY AND CHARGING | Xiaomi MI 8 Pro | Vivo X51 5G |
|---|
| Battery Capacity (Battery Size) | 3000 mAh | 4315 mAh | Vivo X51 5G has larger battery capacity than Xiaomi MI 8 Pro. |
|---|---|---|---|
| Fast Charging Technology | Qualcomm Quick Charge 4.0+ | - | Xiaomi MI 8 Pro has fast charging technology. |
| CELLULAR | Xiaomi MI 8 Pro | Vivo X51 5G |
|---|
| Technology | CDMA2000 1X / GSM / WCDMA (UMTS) / TD-SCDMA | CDMA2000 1X / GSM / WCDMA (UMTS) | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 5G | Vivo X51 5G has more advanced generation mobile network. |
| Operating System | - | Funtouch OS 10 (based on Android 10) | |
| Payment Technology | Android Pay | - | |
| Navigation | GPS, GLONASS, BeiDou, Galileo, QZSS | GPS, GLONASS, BeiDou, Galileo |
| COMMUNICATIONS | Xiaomi MI 8 Pro | Vivo X51 5G |
|---|
| Data Transmission | GPRS, EDGE, EV-DO, HSDPA, HSUPA, HSPA+, FDD-LTE, TDD-LTE | FDD-LTE, TDD-LTE, 5G NR FR1 | |
|---|---|---|---|
| 2G Band | - | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM, 800 CDMA2000 1X | |
| 3G UMTS Band | Band 1, Band 2, Band 4, Band 5, Band 8 | Band 1, Band 2, Band 4, Band 5, Band 8 | |
| 3G UMTS Frequency | 2100, 1900, 1700, 850, 900 | 2100, 1900, 1700, 850, 900 | |
| 4G LTE Band | Band 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 12, Band 17, Band 20, Band 34, Band 38, Band 39, Band 40, Band 41 | Band 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 12, Band 17, Band 18, Band 19, Band 20, Band 26, Band 28, Band 32, Band 38, Band 39, Band 40, Band 41, Band 66 | |
| 4G LTE Frequency | FDD 2100, FDD 1900 PCS, FDD 1800+, FDD 1700 - 2110 AWS, FDD 850, FDD 2600, FDD 900, FDD 700a, FDD 700b, FDD 800 DD, TDD 2000, TDD 2600, TDD 1900, TDD 2300, TDD 2500 | FDD 2100, FDD 1900 PCS, FDD 1800+, FDD 1700 - 2110 AWS, FDD 850, FDD 2600, FDD 900, FDD 700a, FDD 700b, FDD 800 lower, FDD 800 upper, FDD 800 DD, FDD 850+, FDD 700 APT, FDD 1500 L, TDD 2600, TDD 1900, TDD 2300, TDD 2500, FDD 1700 - 2110 AWS-3 | |
| 5G NR Band | - | N1, n3, n7, n8, n28, n38, n41, n77, n78 | |
| 5G NR Frequency | - | FDD 2100, FDD 1800, FDD 2600, FDD 900, FDD 700APT, TDD TD 2600, TDD TD 2500, TDD TD 3700, TDD TD 3500 | |
| Wireless Interface | IEEE 802.11a/b/g/n/ac | Wi-Fi | |
| Bluetooth | Bluetooth 5.0 | Bluetooth 5.1 | |
| NFC | Yes | Yes | Both phones have an NFC reader for mobile payments. |
| Messaging Services | SMS, MMS | - |
| MEDIA | Xiaomi MI 8 Pro | Vivo X51 5G |
|---|
| Supported Digital Audio Standards | WAV, AAC, PCM, AMR, MP3, FLAC, AAC +, eAAC+, APE (Monkey's Audio), apt-X, AMR-WB, AMR-NB, apt-X HD | WAV, MPEG 2 Audio, MP3, FLAC, MIDI, APE (Monkey's Audio), AMR-WB, AMR-NB, Vorbis | |
|---|---|---|---|
| Supported Digital Video Standards | MKV, XviD, MPEG-4, H.264, M4V, HEVC, H.265, ASP | MKV, AVI, 3GP, TS, MP4 | |
| Audio Amplifier | - | AK4377A |
| FEATURES | Xiaomi MI 8 Pro | Vivo X51 5G |
|---|
| Phone Functions | Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert | Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert | |
|---|---|---|---|
| Sensors | Accelerometer, ambient light sensor, proximity sensor, digital compass, barometer, gyro sensor, hall sensor, Time of Flight (ToF), infrared (IR) sensor | Accelerometer, ambient light sensor, proximity sensor, digital compass | |
| Security Devices | Fingerprint reader (under display), face recognition | Fingerprint reader | |
| Security Technology | IR face unlock | - | |
| Additional Phone Features | Face Unlock, MU-MIMO technology | - |
| OTHERS | Xiaomi MI 8 Pro | Vivo X51 5G |
|---|
| Included Accessories | Power adapter, SIM card removal tool, USB-C to 3.5 jack adapter, USB-C cable, soft protective case, 18W QC3.0 charger | Headset, USB cable, power adapter, SIM card removal tool, USB-C to 3.5 jack adapter, protective case, protective film | |
|---|---|---|---|
| Compliant Standards | - | IP53 |
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