In depth comparison and review of Xiaomi POCO X3 NFC and Vivo V21 5G. Compare sizes, cameras, batteries, memory, and other important specifications and features to easily choose the right phone for you. Our goal is to help you uncover differences between the products and find the phone that will best fit your needs.
| DESIGN AND DIMENSIONS | Xiaomi POCO X3 NFC | Vivo V21 5G |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | - | V2050 | |
| Form Factor | Touch | Touch | |
| Height | 165.3 mm | 159.68 mm | Xiaomi POCO X3 NFC has greater height than Vivo V21 5G. |
| Width | 76.8 mm | 73.9 mm | Xiaomi POCO X3 NFC has greater width than Vivo V21 5G. |
| Depth | 9.4 mm | 7.29 mm | Vivo V21 5G is narrower than Xiaomi POCO X3 NFC. |
| Weight | 215 g | 176 g | Vivo V21 5G is lighter than Xiaomi POCO X3 NFC. |
| Body Colour | Cobalt blue | Shadow grey | Dusk blue | Sunset dazzle | |
| Body Material | - | Matte glass | |
| Protection | Splashproof | - | |
| Waterproof (Water-resistant) | - | - | |
| IP rating | IP53 | IP52 | |
| SAR Value | 0.558 W/kg (head), 0.986 W/kg (body), 1.997 W/kg (limb) | 1.09 W/kg (body), 3.19 W/kg (limb), 0.91 W/kg (head) | |
| Connector Type | USB Type-C - 24 pin USB-C Headset jack - mini-phone 3.5mm |
USB Type-C - 24 pin USB-C | |
| SIM Card Type (Size) | Nano SIM | Nano SIM | |
| SIM Card Qty | Dual-SIM | Dual-SIM | |
| SIM Card Configuration Details | Nano SIM + nano SIM/microSD | Nano SIM + nano SIM/microSD |
| DISPLAY | Xiaomi POCO X3 NFC | Vivo V21 5G |
|---|
| Display Type | - | OLED display | |
|---|---|---|---|
| Display Technology | - | AMOLED | |
| Screen Size (Display Size) | 6.67" | 6.44" | Xiaomi POCO X3 NFC has larger screen size than Vivo V21 5G. |
| Screen Resolution (Display Resolution) | 2400 x 1080 pixels | 2404 x 1080 pixels | Vivo V21 5G has better screen resolution than Xiaomi POCO X3 NFC. |
| Display Format | Full HD+ | Full HD+ | |
| Pixel Density | 395 ppi | - | |
| Aspect Ratio | 20:9 | 20:9 | |
| Max Brightness | - | 800 cd/m² | |
| Contrast Ratio | 1500:1 | 6000000:1 | Vivo V21 5G has better display contrast ratio than Xiaomi POCO X3 NFC. |
| HDR | Yes | Yes | Both phones have HDR. |
| HDR Technology | HDR10 | HDR10+ | |
| Display Refresh Rate | 120 Hz | 90 Hz | Xiaomi POCO X3 NFC has better refresh rate than Vivo V21 5G. |
| Touch Sampling Rate | 240 Hz | - | |
| Display Features | Dark mode, Dot Display | - | |
| Display Protection (Screen Protector) | Corning Gorilla Glass 5 (scratch resistant glass) | - |
| PROCESSOR | Xiaomi POCO X3 NFC | Vivo V21 5G |
|---|
| Processor Type (CPU) | Qualcomm Snapdragon 732G | MediaTek Dimensity 800U | |
|---|---|---|---|
| Clock Speed | 2.3 GHz | 2.4 GHz | Vivo V21 5G has higher clock speed than Xiaomi POCO X3 NFC. |
| Processor Core Qty | 8-core | 8-core | Both phones have the same number of phone cores. |
| 64-bit Architecture | Yes | - | Xiaomi POCO X3 NFC has 64-bit architecture. |
| Graphics System (GPU) | Qualcomm ADRENO 618 | - |
| MEMORY | Xiaomi POCO X3 NFC | Vivo V21 5G |
|---|
| RAM | LPDDR4X SDRAM - 6 GB | 8 GB | Vivo V21 5G has more RAM than Xiaomi POCO X3 NFC. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 64 GB | 128 GB | Vivo V21 5G has more internal memory than Xiaomi POCO X3 NFC. |
| Memory Interface | UFS 2.1 | UFS 2.2 | |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSDXC - up to 256 GB | microSDHC, microSD, microSDXC - up to 1 TB |
| CAMERA | Xiaomi POCO X3 NFC | Vivo V21 5G |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 4 | 3 | |
|---|---|---|---|
| Sensor Resolution | 64 Megapixel | 64 Megapixel | Both phones have the same camera resolution. |
| Sensor Size | 1/1.73" | - | |
| Sensor Name | Sony Exmor RS IMX682 sensor | - | |
| Lens Aperture | F/1.89 | F/1.79 | Vivo V21 5G has better lens aperture than Xiaomi POCO X3 NFC. |
| Pixel Size | 1.6 μm | - | |
| Optical Image Stabiliser (OIS) | - | 4-axis OIS (Optical Image Stabilisation) | Vivo V21 5G has optical stabilisation. |
| Focus Adjustment | Automatic | Automatic | |
| Digital Zoom | - | 10x | |
| Special Effects | Kaleidoscope | Bokeh effect | |
| Camera Modes | Pro mode, night mode, SteadyShot, AI portrait mode, AI Beautify, Pro Video mode, Macro video, Movie frame, photo filters, AI SkyScaping 3.0, AI photo clones, Timed burst, Document mode 2.0 | Beauty mode, Night, Filter mode, Portrait video, Dual video mode, ultra stable video, kid's face beauty, double exposure | |
| 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 1920 x 1080 (1080p) at 120 fps, Slo-mo video 1280 x 720 (720p) at 240 fps, 3840 x 2160 (4K) at 30 fps, Slo-mo video 1280 x 720 (720p) at 120 fps, Slo-mo video 1280 x 720 (720p) at 960 fps | 3840 x 2160 (4K), 1920 x 1080 (1080p) at 120 fps, 1280 x 720 (720p) at 120 fps | |
| Camera Features (Functions) | 4-in-1 Super Pixel, AI scene detection, AI Quad camera, Support LOG format, 6 long exposure modes, AI dynamic studio | Eye Autofocus |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | 13 Megapixel | 8 Megapixel | Xiaomi POCO X3 NFC has better second camera resolution than Vivo V21 5G. |
|---|---|---|---|
| Lens Type (2nd Camera) | Ultra wide-angle lens | Wide-angle lens | |
| Lens Aperture (2nd Camera) | F/2.2 | F/2.2 | Both phones have the same second camera lens aperture. |
| Field of View (2nd Camera) | 119 degree(s) | 120 degree(s) | Vivo V21 5G has larger second camera lens field of view than Xiaomi POCO X3 NFC. |
| THIRD CAMERA |
|---|
| Sensor Resolution (3rd Camera) | 2 Megapixel | 2 Megapixel | Both phones have the same third camera resolution. |
|---|---|---|---|
| Lens Aperture (3rd Camera) | F/2.4 | F/2.4 | Both phones have the same lens aperture of the third camera. |
| Pixel Size (3rd Camera) | 1.75 μm | - | |
| Camera Functions (3rd Camera) | Macro camera | Super macro camera | |
| Camera Features (3rd Camera) | FF (4cm) | 4cm macro photography |
| FOURTH CAMERA |
|---|
| Sensor Resolution (4th Camera) | 2 Megapixel | - | |
|---|---|---|---|
| Lens Aperture (4th Camera) | F/2.4 | - | |
| Pixel Size (4th Camera) | 1.75 μm | - | |
| Camera Functions (4th Camera) | Depth camera | - |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 20 Megapixel | 44 Megapixels | Vivo V21 5G has better front camera resolution than Xiaomi POCO X3 NFC. |
| Lens Aperture (Front) | F/2.2 | F/2.0 | Vivo V21 5G has better front lens aperture than Xiaomi POCO X3 NFC. |
| Pixel Size (Front) | 1.6 μm | - | |
| Special Effects (Front) | HDR | HDR | |
| Camera Modes (Front) | Selfie panorama, portrait mode, AI Beautify, Short video mode | Beauty mode, Night, Filter mode, Dual video mode, ultra stable video, kid's face beauty, double exposure, AI night portrait | |
| Light Source (Front) | Display flash | Dual LED flash | |
| Video Resolutions (Front) | - | 3840 x 2160 (4K) | |
| Camera Features (Front) | Self-timer, 4-in-1 Super Pixel technology, AI scene detection, AI studio lighting, Palm shutter, full screen frame, Short video filter | Optical Image Stabilisation (OIS), 2 x digital zoom, Eye Autofocus |
| BATTERY AND CHARGING | Xiaomi POCO X3 NFC | Vivo V21 5G |
|---|
| Battery Capacity (Battery Size) | 5160 mAh | 4000 mAh | Xiaomi POCO X3 NFC has larger battery capacity than Vivo V21 5G. |
|---|---|---|---|
| Run Time Details | Playback (video): up to 17 hrs Gaming: up to 10 hrs Playback (Music): up to 153 hrs |
- |
| CELLULAR | Xiaomi POCO X3 NFC | Vivo V21 5G |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 5G | Vivo V21 5G has more advanced generation mobile network. |
| Operating System | Android 10 | Funtouch OS 11.1 (based on Android 11) | |
| User Interface | POCO Launcher 2.0 (MIUI12) | - | |
| Payment Technology | Google Pay | - | |
| Navigation | GPS, A-GPS, GLONASS, BeiDou | GPS, GLONASS, BeiDou, Galileo |
| COMMUNICATIONS | Xiaomi POCO X3 NFC | Vivo V21 5G |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, VoLTE, FDD-LTE, TDD-LTE | FDD-LTE, TDD-LTE, 5G NR FR1 | |
|---|---|---|---|
| 2G Band | - | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM | |
| 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 20, Band 28, Band 38, 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 800 DD, FDD 700 APT, TDD 2600, 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, n41, n78, n40 | |
| 5G NR Frequency | - | FDD 2100, FDD 1800, FDD 2600, FDD 900, FDD 700APT, TDD TD 2500, TDD TD 3500, TDD 2300 | |
| Wireless Interface | Wi-Fi | Wi-Fi | |
| Bluetooth | Bluetooth 5.1 | Bluetooth 5.1 | |
| NFC | Yes | Yes | Both phones have an NFC reader for mobile payments. |
| Messaging Services | SMS, MMS | - |
| MEDIA | Xiaomi POCO X3 NFC | Vivo V21 5G |
|---|
| Supported Digital Audio Standards | WAV, WMA, AAC, AMR, MP3, FLAC, OGG, APE (Monkey's Audio), M4A, DSF, AWB | WAV, MPEG 2 Audio, MP3, FLAC, MIDI, APE (Monkey's Audio), Vorbis | |
|---|---|---|---|
| Supported Digital Video Standards | MKV, AVI, WMV, ASF, 3GP, M4V, WebM, 3G2, MP4 | MKV, FLV, 3GP, MP4 | |
| Sound Enhancements | Hi-Res audio | - |
| FEATURES | Xiaomi POCO X3 NFC | Vivo V21 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, gyro sensor | Accelerometer, ambient light sensor, proximity sensor, digital compass, gyroscope | |
| Security Devices | Face recognition, fingerprint reader (side) | Fingerprint reader (under display) | |
| Additional Phone Features | Infrared remote control, MIMO technology, AI face unlock, Google Lens, linear motor, Qualcomm 4th generation AI Engine, LiquidCool Technology 1.0 Plus, GAME Turbo 3.0 | Fast Charging, 3 GB of external memory space for RAM |
| OTHERS | Xiaomi POCO X3 NFC | Vivo V21 5G |
|---|
| Included Accessories | SIM card removal tool, USB-C cable, 33W charger, anti-bacterial case, anti-bacterial screen protector | Headset, headset adapter, SIM card removal tool, pre-installed screen protection film, USB-C cable, protective case | |
|---|---|---|---|
| Compliant Standards | IP53, TUV Rheinland Low Blue Light Certification | IP52 |
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