In depth comparison and review of Xiaomi MI Mix 3 5G and Samsung Galaxy S20 Ultra 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 MI Mix 3 5G | Samsung Galaxy S20 Ultra 5G |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | - | SM-G988B/DS | |
| Form Factor | Touch slider | Touch | |
| Height | 157.89 mm | 166.9 mm | Samsung Galaxy S20 Ultra 5G has greater height than Xiaomi MI Mix 3 5G. |
| Width | 74.69 mm | 76 mm | Samsung Galaxy S20 Ultra 5G has greater width than Xiaomi MI Mix 3 5G. |
| Depth | 8.46 mm | 8.8 mm | Xiaomi MI Mix 3 5G is narrower than Xiaomi MI Mix 3 5G. |
| Weight | 225 g | 220 g | Samsung Galaxy S20 Ultra 5G is lighter than Xiaomi MI Mix 3 5G. |
| Body Colour | Sapphire blue | Onyx black | Cosmic black | Cosmic grey | Cloud white | |
| Protection | - | Dustproof, splashproof, water-resistant | |
| Waterproof (Water-resistant) | - | Yes | Samsung Galaxy S20 Ultra 5G is waterproof. |
| IP rating | - | IP68 | |
| SAR Value | 1.577 W/kg (body), 1.557 W/kg (head) | 1.557 W/kg (body), 0.66 W/kg (head) | |
| Connector Type | USB Type-C - 24 pin USB-C | USB Type-C - 24 pin USB-C | |
| SIM Card Type (Size) | - | Nano SIM, Electronic SIM card (e-SIM) | |
| SIM Card Qty | Single-SIM | Dual-SIM | |
| SIM Card Configuration Details | - | Nano SIM + nano SIM/microSD |
| DISPLAY | Xiaomi MI Mix 3 5G | Samsung Galaxy S20 Ultra 5G |
|---|
| Display Type | OLED display | OLED display | |
|---|---|---|---|
| Display Technology | AMOLED | Infinity-O Dynamic AMOLED 2X | |
| Screen Size (Display Size) | 6.39" | 6.9" | Samsung Galaxy S20 Ultra 5G has larger screen size than Xiaomi MI Mix 3 5G. |
| Screen Resolution (Display Resolution) | 2340 x 1080 pixels | 3200 x 1440 pixels | Samsung Galaxy S20 Ultra 5G has better screen resolution than Xiaomi MI Mix 3 5G. |
| Display Format | Full HD+ | QHD+ | |
| Pixel Density | 403 ppi | 511 ppi | Samsung Galaxy S20 Ultra 5G has better pixel density than Xiaomi MI Mix 3 5G. |
| Aspect Ratio | 19.5:9 | - | |
| Max Brightness | 600 cd/m² | - | |
| Colour Depth | - | 16.7 million colours | |
| Contrast Ratio | 60000:1 | - | |
| HDR | Yes | Yes | Both phones have HDR. |
| HDR Technology | - | HDR10+ | |
| Display Enhancement Technology | Sunlight mode | - | |
| Display Refresh Rate | - | 120 Hz | |
| Display Features | Always-on display, Reading mode, Colour temperature adjustment, night mode | Edge Screen, DCI-P3 Wide colour gamut, AOD(Always On Display), Edge Lighting |
| PROCESSOR | Xiaomi MI Mix 3 5G | Samsung Galaxy S20 Ultra 5G |
|---|
| Processor Type (CPU) | Qualcomm Snapdragon 855 | Samsung Exynos 990 | |
|---|---|---|---|
| Clock Speed | 2.84 GHz | 2.73 GHz | Xiaomi MI Mix 3 5G has higher clock speed than Samsung Galaxy S20 Ultra 5G. |
| Processor Core Qty | - | 8-core | |
| 64-bit Architecture | Yes | Yes | Both phones have 64-bit architecture. |
| Graphics System (GPU) | Qualcomm ADRENO 640 | - |
| MEMORY | Xiaomi MI Mix 3 5G | Samsung Galaxy S20 Ultra 5G |
|---|
| RAM | LPDDR4X SDRAM - 6 GB | LPDDR5 SDRAM - 12 GB | Samsung Galaxy S20 Ultra 5G has more RAM than Xiaomi MI Mix 3 5G. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 128 GB | 128 GB | Both phones have the same internal memory capacity. |
| User Memory | - | 104 GB | |
| Memory Interface | UFS 2.1 | - | |
| Supported Flash Memory Cards (Expandable Memory) | - | microSDHC, microSDXC - up to 1 TB |
| CAMERA | Xiaomi MI Mix 3 5G | Samsung Galaxy S20 Ultra 5G |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 2 | 4 | |
|---|---|---|---|
| Sensor Resolution | 12 Megapixel | 108 Megapixel | Samsung Galaxy S20 Ultra 5G has better camera resolution than Xiaomi MI Mix 3 5G. |
| Sensor Size | - | 1/1.33" | |
| Sensor Name | Sony Exmor RS IMX363 sensor | - | |
| Lens Type | Wide-angle lens | Wide-angle lens | |
| Lens Aperture | F/1.8 | F/1.8 | Both phones have the same camera lens aperture. |
| Field of View (FoV) | - | 79 degree(s) | |
| Pixel Size | 1.4 μm | 0.8 μm | Xiaomi MI Mix 3 5G has larger camera pixel size than Samsung Galaxy S20 Ultra 5G. |
| Optical Image Stabiliser (OIS) | 4-axis OIS (Optical Image Stabilisation) | Optical Image Stabiliser (OIS) | Both phones have optical image stabilization. |
| Focus Adjustment | Automatic | Automatic, manual | |
| Optical Zoom | - | 10x | |
| Digital Zoom | - | 100x | |
| Self-Timer Delay | - | Yes | |
| Special Effects | HDR | HDR, Bokeh effect, Grid Line, Motion photos, video bokeh effect | |
| Camera Modes | Panorama, Nightscape capture mode, Personalized AI Beautify | Panorama, Slow motion mode, Pro mode, HYPERLAPSE, Super Slow-mo, Flowers, Greenery, Trees, Sky, Beaches, Watersides, Snow, Backlit, Text, Food, Face, Baby, Person, Dog, Cat, People, Sunset, Sunrise, City, Waterfall, Scenery, Stage, Vehicles, Drinks, Animal, Shoes, Indoor, Clothes, Night view, Live focus video, Night, Mountain, Pro Video mode, Single Take | |
| Face Recognition (Face ID) | Face recognition | Face detection | Both phones have face detection. |
| White Balance | - | Custom, automatic | |
| Light Source | Flash | High CRI LED flash | |
| Video Resolutions | 1920 x 1080 (1080p) at 30 fps, 1920 x 1080 (1080p) at 60 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, 3840 x 2160 (4K) at 60 fps, Super slow motion video 1280 x 720 (720p) at 960 fps, Slo-mo video 1920 x 1080 (1080p) at 240 fps, Super slow motion video 1920 x 1080 (1080p) at 960 fps | 1920 x 1080 (1080p) at 60 fps, 1280 x 720 (720p) at 30 fps, 3840 x 2160 (4K) at 60 fps, Super slow motion video 1280 x 720 (720p) at 960 fps, Slo-mo video 1920 x 1080 (1080p) at 240 fps, 7680 x 4320 (8K) at 24 fps | |
| Camera Features (Functions) | AI scene and object detection, Dual Pixel Autofocus technology, AI Dual camera, 4-in-1 Super Pixel, AI scene detection, AI dynamic bokeh, AI studio lighting, AI Super Resolution, low-light enhancement technology, AI special effects | Quick Launch, Playback zoom, Phase Detect Auto-Focus (PDAF), blink detection, VDIS (Video Digital Image Stabilisation), Live Focus, Tracking AF, Video location tags, Quick Share, location tags, Hyperlapse video support 1080p, Scene Optimiser, Full view, Flaw detection, Shot suggestions, AR Emoji, blur detection, HDR10+ recording, Floating shutter button, Super steady, Quick Measure, Space Zoom, 33MP still photos while playing 8K video, 100x Super Resolution Zoom, 10x Hybrid Optic Zoom, 3D Scanner |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | 12 Megapixel | 12 Megapixel | Both phones have the same second camera resolution. |
|---|---|---|---|
| Sensor Name (2nd Camera) | Samsung S5K3M3+ | - | |
| Lens Type (2nd Camera) | - | Ultra wide-angle lens | |
| Lens Aperture (2nd Camera) | - | F/2.2 | |
| Field of View (2nd Camera) | - | 120 degree(s) | |
| Pixel Size (2nd Camera) | 1 μm | 1.4 μm | Samsung Galaxy S20 Ultra 5G has larger second camera pixel size than Xiaomi MI Mix 3 5G. |
| THIRD CAMERA |
|---|
| Sensor Resolution (3rd Camera) | - | 48 Megapixels | |
|---|---|---|---|
| Lens Type (3rd Camera) | - | Telephoto lens | |
| Lens Aperture (3rd Camera) | - | F/3.5 | |
| Field of View (3rd Camera) | - | 24 degree(s) | |
| Pixel Size (3rd Camera) | - | 0.8 μm |
| FOURTH CAMERA |
|---|
| Sensor Resolution (4th Camera) | - | 0.3 Megapixel | |
|---|---|---|---|
| Lens Aperture (4th Camera) | - | F/1.0 | |
| Camera Functions (4th Camera) | - | DepthVision camera |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 2 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 24 Megapixel | 40 Megapixels | Samsung Galaxy S20 Ultra 5G has better front camera resolution than Xiaomi MI Mix 3 5G. |
| Sensor Name (Front) | Sony Exmor RS IMX576 sensor | - | |
| Lens Aperture (Front) | - | F/2.2 | |
| Field of View (Front) | - | 80 degree(s) | |
| Pixel Size (Front) | 1.8 μm | 0.7 μm | Xiaomi MI Mix 3 5G has larger front camera pixel size than Samsung Galaxy S20 Ultra 5G. |
| Focus Adjustment | - | Automatic | |
| Special Effects (Front) | Magic mirror | - | |
| HDR Mode (Front) | Auto HDR mode | - | |
| Camera Modes (Front) | Bokeh Mode, AI Beautify, AI makeup | - | |
| Face Recognition (Face ID) | Face recognition | - | Xiaomi MI Mix 3 5G has face detection. |
| Camera Features (Front) | AI portrait mode, 4-in-1 Super Pixel technology, Video Beautify, AI scene detection, AI dynamic bokeh, AI studio lighting, AI real-time video background blurring, AI eye light | Phase Detect Auto-Focus (PDAF) |
| SECOND FRONT CAMERA |
|---|
| Sensor Resolution (2nd Front) | 2 Megapixel | - | |
|---|---|---|---|
| Sensor Name (2nd Front) | OC0A10 | - | |
| Pixel Size (2nd Front) | 1.75 μm | - |
| BATTERY AND CHARGING | Xiaomi MI Mix 3 5G | Samsung Galaxy S20 Ultra 5G |
|---|
| Battery Capacity (Battery Size) | 3800 mAh | 5000 mAh | Samsung Galaxy S20 Ultra 5G has larger battery capacity than Xiaomi MI Mix 3 5G. |
|---|---|---|---|
| Fast Charging Technology | Qualcomm Quick Charge 4.0+ | Qualcomm Quick Charge 2.0, Adaptive Fast Charging, Samsung Super Fast Charging | Both phones have fast charging technology. |
| Wireless Charging | - | Yes | Samsung Galaxy S20 Ultra 5G can be charged wirelessly. |
| Wireless Charging Standards | - | WPC, Qi, Fast Wireless Charging 2.0, Wireless PowerShare | |
| Talk Time | - | 1500 minutes | |
| Run Time Details | - | Talk (LTE): up to 1500 min Active online usage (LTE): up to 17 hrs Active online usage (Wi-Fi): up to 18 hrs |
| CELLULAR | Xiaomi MI Mix 3 5G | Samsung Galaxy S20 Ultra 5G |
|---|
| Technology | CDMA2000 1X / GSM / WCDMA (UMTS) / TD-SCDMA | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 5G | 5G | Both phones have the same mobile network generation. |
| Operating System | - | Android 10 | |
| User Interface | - | Samsung One UI 2 | |
| Intelligent Assistant | - | Bixby | |
| Payment Technology | - | Samsung Pay | |
| Navigation | GPS, GLONASS, BeiDou, Galileo, QZSS | GPS, GLONASS, BeiDou, Galileo |
| COMMUNICATIONS | Xiaomi MI Mix 3 5G | Samsung Galaxy S20 Ultra 5G |
|---|
| Data Transmission | GPRS, EDGE, EV-DO, HSDPA, HSUPA, HSPA+, FDD-LTE, TDD-LTE, 5G NR FR1 | GPRS, EDGE, HSDPA, HSUPA, HSPA+, FDD-LTE, TDD-LTE, 5G NR FR1 | |
|---|---|---|---|
| 2G Band | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM, 800 CDMA2000 1X | 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 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 13, Band 17, Band 18, Band 19, Band 20, Band 25, 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 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 700c, FDD 700b, FDD 800 lower, FDD 800 upper, FDD 800 DD, FDD 1900+, FDD 850+, FDD 700 APT, FDD 1500 L, TDD 2600, TDD 1900, TDD 2300, TDD 2500, FDD 1700 - 2110 AWS-3 | |
| 5G NR Band | N78 | N1, n3, n5, n7, n8, n28, n77, n78, n40 | |
| 5G NR Frequency | TDD TD 3500 | FDD 2100, FDD 1800, FDD 850, FDD 2600, FDD 900, FDD 700APT, TDD TD 3700, TDD TD 3500, TDD 2300 | |
| Wireless Interface | IEEE 802.11a/b/g/n/ac | IEEE 802.11a/b/g/n/ac, ANT+/ANT, IEEE 802.11a/b/g/n/ac/ax | |
| Bluetooth | Bluetooth 5.0 | Bluetooth 5.0 | |
| NFC | Yes | Yes | Both phones have an NFC reader for mobile payments. |
| Messaging Services | SMS, MMS | SMS, MMS |
| MEDIA | Xiaomi MI Mix 3 5G | Samsung Galaxy S20 Ultra 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, WMA, AAC, PCM, AMR, MP3, FLAC, XMF, OGG, MIDI, APE (Monkey's Audio), M4A, DSF, DSD, MXMF, OGA, 3GA, AWB, IMY, RTTTL, RTX, OTA, DFF, MID, DSD64, DSD128 | |
|---|---|---|---|
| Supported Digital Video Standards | MKV, VC-1, XviD, MPEG-4, H.264, M4V, HEVC, H.265, ASP | MKV, FLV, AVI, WMV, ASF, 3GP, M4V, WebM, 3G2, MP4 | |
| Sound Enhancements | - | Dolby Digital Plus sound, Dolby Atmos sound technology, Surround sound, stereo speakers tuned by AKG, Dolby Digital sound |
| FEATURES | Xiaomi MI Mix 3 5G | Samsung Galaxy S20 Ultra 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, digital compass, gyro sensor, vibration sensor, ultrasonic distance sensor | Accelerometer, proximity sensor, barometer, gyro sensor, hall sensor, RGB sensor, geomagnetic sensor | |
| Security Devices | Face recognition, fingerprint reader | Fingerprint reader (under display), face recognition | |
| Additional Phone Features | MIMO technology, MU-MIMO technology | Smart Select, MU-MIMO technology, Fast Charging, Samsung KNOX, High AOP Mic, Smart View, Live message, Samsung DeX support, Bixby Vision, Secure Folder function, Dual Audio, Bixby Routines, Intelligent Performance Enhancer, AR Doodle, Bixby key, 3D Scanner |
| OTHERS | Xiaomi MI Mix 3 5G | Samsung Galaxy S20 Ultra 5G |
|---|
| Included Accessories | Protective cover, power adapter, SIM card removal tool, USB-C cable, USB-C to 3.5 jack audio cable | Power adapter, SIM card removal tool, USB-C cable, headset (tuned by AKG), clear cover case, protective film | |
|---|---|---|---|
| Compliant Standards | - | VDE, IP68, SGS | |
| Max Depth of Water Resistance | - | 1.5 m |
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