Xiaomi Mi Mix Alpha vs Samsung SGH-D820
Side by side comparison between Xiaomi Mi Mix Alpha vs Samsung SGH-D820 phones, differences, pros, cons and full specifications. What's the better?
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7.92"
AMOLED
AMOLED
2088x2250
108
MP
MP
12GB
RAM
RAM
Octa-core
4050
mAh
mAh
(Non removable)
vs
What's the better phone? Xiaomi Mi Mix Alpha
The phonemore's choice is much more technical than personal. Therefore, you shouldn't only consider this. Our goal is to help you, but what's important to us may not be important to you. You decide which one is the best! Comment!
31 Advantages 
3 Advantages | 2 Common items in both devices |
| Hands-free calling |
| Vibrating alert |
| + specs and more in the table below |
Check the comparison table below for more items that are not evaluated in comparison score above.
Highlight differences Clear highlight📱 Model features | ||
| Xiaomi Mi Mix Alpha | Samsung SGH-D820 | |
| Change model | ||
| Model | Xiaomi Mi Mix Alpha | Samsung SGH-D820 |
| Other model names | 小米MIX Alpha, Xiaomi Mix Alpha | Samsung D820, Samsung SGH-D820 |
| Country or region available |  (Global, International) | (Global, International) |
| Brand | Xiaomi | Samsung |
| Release date | 2/1/2020 | 10/1/2005 |
| Depth | 10.4 millimeters (0.41 inches) | 15.2 millimeters (0.6 inches) |
| Size (width x height) | 72.3 x 154.38 millimeters (2.85 x 6.08 in) | 51 x 95 millimeters (2.01 x 3.74 in) |
| Weight | 241 grams (8.44 ounces) | 99 grams (3.47 ounces) |
| Build, materials | Titanium frame, glass front, ceramic and glass back | feature not registered |
| Protection against water and others | Not supported | Not supported |
📲 Display | ||
| Xiaomi Mi Mix Alpha | Samsung SGH-D820 | |
| Display type | Flexible Super AMOLED | TFT LCD |
| Screen size | 7.92" inches | 2.1" inches |
| Screen-to-body ratio | ~180.8% (screen-to-body ratio) | ~28.2% (screen-to-body ratio) |
| Display resolution | 2088x2250 pixels | 240x320 pixels |
| Touchscreen | Capacitive Multitouch | Not supported |
| Pixel density (dot pitch) | 388 PPI | 190 PPI |
| Colors | 16 million | 260 thousand |
| Scratch-resistant glass | Not supported | Not supported |
| Refresh rate | feature not registered | feature not registered |
| Display features | feature not registered | feature not registered |
🤖 Operating System | ||
| Xiaomi Mi Mix Alpha | Samsung SGH-D820 | |
| System version | Android 10 | Proprietary OS |
| Firmware update | feature not registered | feature not registered |
| User Interface | feature not registered | feature not registered |
⚙️ Processor | ||
| Xiaomi Mi Mix Alpha | Samsung SGH-D820 | |
| Chipset | 64bit: Qualcomm Snapdragon 855+ (SM8150-AC) (7nm) | 16bit |
| CPU | Octa-core, 3 processors: 1x 2.96GHz Kryo 485 (Single-core) 3x 2.42GHz Kryo 485 (Triple-core) 4x 1.8GHz Kryo 485 (Quad-core) | Single-core, 1 processor: Single-core |
| GPU graphical controller | Qualcomm Adreno 640 (672MHz) | feature not registered |
| Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage | ||
| Xiaomi Mi Mix Alpha | Samsung SGH-D820 | |
| RAM memory | 12GB LPDDR4X | SDRAM |
| Internal storage | 512GB (494GB available) UFS 3.0 | 128MB (73MB available) |
| External storage | Not supported | Until 2GB microSD (dedicated slot) |
📶 Mobile networks | ||
| Xiaomi Mi Mix Alpha | Samsung SGH-D820 | |
| Dual-SIM | Dual-SIM Standby - Call active on one sim card | Not supported |
| SIM card | 2 slots (Dual-SIM) nano-SIM (4FF) | 1 slot (Single-SIM) Standard mini-SIM (2FF) |
| Maximum Download / Upload | 2000/150 Mbps | 0.384 Mbps |
| Network technology | 2G, 3G, 4G, 5G | 2G |
| Frequency, bands | Expand band details Collapse details | |
| GSM MHz band | Quad-Band 850/900/1800/1900 | Quad-Band 850/900/1800/1900 |
| Primary 2G network | GSM 850/900/1800/1900 | GSM 850/900/1800/1900 |
| Primary 3G network | TD-SCDMA 1900/2000 UMTS 850/900/1900/2100 | Not supported |
| Primary 4G network | LTE Cat20 (Bands 1, 2, 3, 4, 5, 7, 8) TD-LTE (Bands 34, 38, 39, 40, 41) VoLTE | Not supported |
| Primary 5G network | SA/NSA/Sub6 (Bands 41, 78, 79) | Not supported |
| Primary data network | GPRS, EDGE, TD-SCDMA, UMTS, TD-HSDPA, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA | GPRS, EDGE |
| Secondary 2G network | GSM 850/900/1800/1900 | Not supported |
| Secondary 3G network | Not supported | Not supported |
| Secondary 4G network | Not supported | Not supported |
| Secondary data network | GPRS, EDGE | Not supported |
📷 Camera | ||
| Xiaomi Mi Mix Alpha | Samsung SGH-D820 | |
| Back camera (main camera) | (triple camera) 108 megapixels 12MP telephoto f/2.054mm1/2.55"1.4µmPDAFLaserAF2x-optical-zoom 20MP ultrawide f/2.213mm1/2.8"1.0µmLaserAF | 1.3 megapixels |
| Main camera resolution | 12000x9000 pixels | 1280x1024 pixels |
| Video recording (primary) | 6K UHD (5760x3240) 30 fps | CIF (352x288) 13 fps |
| Flash | Dual-LED flash | Not supported |
| Focal aperture | f/1.7 (aperture) | feature not registered |
| Focal length | feature not registered | feature not registered |
| Sensor size | 1/1.33" inches | feature not registered |
| Pixel size | 0.8µm pixel | feature not registered |
| Autofocus | PDAF: phase detection autofocus | Not supported |
| Touch focus | Supported | Not supported |
| Image stabilization | EIS: Digital stabilization | Not supported |
| Zoom | Digital and optical zoom | Only digital zoom |
| Face/smile detection | Face detection, Smile detection | Not supported |
| BSI sensor | Not supported | Not supported |
| HDR | HDR photo only main camera | Not supported |
| Camera extras | feature not registered | feature not registered |
📸 Front camera | ||
| Xiaomi Mi Mix Alpha | Samsung SGH-D820 | |
| Front camera (secondary) | Not supported | Not supported |
| Front camera resolution | Not supported | Not supported |
| Video recording (secondary) | Not supported | Not supported |
| Front flash | Not supported | Not supported |
| Focal aperture | feature not registered | feature not registered |
| Focal length | feature not registered | feature not registered |
| Sensor size | feature not registered | feature not registered |
| Pixel size | feature not registered | feature not registered |
🔉 Sound and multimedia | ||
| Xiaomi Mi Mix Alpha | Samsung SGH-D820 | |
| Loudspeaker | Supported | Supported |
| Active noise cancellation | 2 microphones or more | Not supported |
| Radio | Not supported | Not supported |
| TV | Not supported | Not supported |
| Video formats | MP4, H.265, H.264, H.263, XviD, MKV | 3GPP |
| Audio formats | MP3, WAV, WMA, eAAC+, FLAC | MP3, WAV, AAC+ |
🔌 Connectivity | ||
| Xiaomi Mi Mix Alpha | Samsung SGH-D820 | |
| USB | USB 2.0 Type-C, USB OTG On-The-Go | USB 1.1 proprietary connector |
| Audio output | Type-C reversible connector | 2.5mm jack |
| TV output | Not supported | Proprietary TV-out |
| Bluetooth | 5.0 + A2DP/LE | 1.2 |
| WiFi | 802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot | Not supported |
| DLNA | Supported | Not supported |
| GPS | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou, QZSS | Not supported |
| NFC | Not supported | Not supported |
| Infrared port | Not supported | Not supported |
🧭 Sensors | ||
| Xiaomi Mi Mix Alpha | Samsung SGH-D820 | |
| Sensors | Accelerometer Ambient light sensor Barometer Compass Face unlock 2D Fingerprint sensor (under display) Gyroscope Hall effect Humidity Proximity sensor | Not supported |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Xiaomi Mi Mix Alpha | Samsung SGH-D820 | |
| Battery type | LiPo: li-ion polymer (Non removable) | Li-Ion: lithium-ion (Removable) |
| Battery capacity | 4050 mAh | 800 mAh |
| Charger, watts | 40W Wired fast charging | Wired charging |
| Inductive / wireless charging | feature not registered | feature not registered |
| Talk time autonomy | feature not registered | 3 hours |
| Standby | feature not registered | 180 hours (7.5 days) |
➕ Other features | ||
| Xiaomi Mi Mix Alpha | Samsung SGH-D820 | |
| Call control | Voice dialing, Voice recorder, Voice commands | Voice recorder |
| Messaging | SMS (T9), MMS, E-mail, Push mail | SMS (T9), MMS, E-mail |
| Hands-free calling | Supported | Supported |
| Video calling | Supported | Not supported |
| Ringtones | Polyphonic and customized | Polyphonic |
| Web browser | HTML, XHTML, HTML5 | WAP, HTML |
| Antenna | Internal antenna | Internal antenna |
| Qwerty physical keyboard | Not supported | Not supported |
| Miscellaneous | • Colors: Black • MIUI 11 | • Colors: Noir Black, Blue Black, Charcoal Gray • Picsel viewer • SyncML Java framework |
☢️ Radiation rate | ||
| Xiaomi Mi Mix Alpha | Samsung SGH-D820 | |
| SAR 1.6W/kg (USA, Mexico, etc.) | feature not registered | 0.36W/kg (head), 0.41W/kg (body) |
| SAR 2W/kg (Europe, UK, etc.) | feature not registered | 0.7W/kg (head) |