Microsoft Lumia 640 (LTE) vs Xiaomi Mi Mix 2 (64GB)
Side by side comparison between Microsoft Lumia 640 vs Xiaomi Mi Mix 2 phones, differences, pros, cons and full specifications. What's the better?
,
vs
5.99"
IPS
IPS
1080x2160
12
MP
MP
5mp
6GB
RAM
RAM
Octa-core
3400
mAh
mAh
(Non removable)
What's the better phone? Xiaomi Mi Mix 2 (64GB)
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!
7 Advantages 
24 Advantages | 21 Common items in both devices |
| TFT IPS LCD |
| 16 million |
| Only digital zoom |
| Autofocus / PDAF: phase detection autofocus |
| HDR photo only main camera |
| 4G LTE / 4G LTE-A |
| Capacitive |
| +14 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 | ||
| Microsoft Lumia 640 (LTE) | Xiaomi Mi Mix 2 (64GB) | |
| Model | Lumia 640 (LTE) | Xiaomi Mi Mix 2 (64GB) |
| Other model names | AT&T Microsoft Lumia 640 4G RM-1072, Lumia 640 RM-1073 | Xiaomi Mi Mix 2 MDE5 (6GB RAM), Xiaomi Mi Mix Evo |
| Country or region available | feature not registered |      China, (Europe), Hong Kong, India, (Global, International) |
| Brand | Microsoft | Xiaomi |
| Release date | 4/1/2015 | 9/1/2017 |
| Depth | 8.8 millimeters (0.35 inches) | 7.7 millimeters (0.3 inches) |
| Size (width x height) | 72.2 x 141.3 millimeters (2.84 x 5.56 in) | 75.5 x 151.8 millimeters (2.97 x 5.98 in) |
| Weight | 145 grams (5.08 ounces) | 185 grams (6.48 ounces) |
| Build, materials | feature not registered | Aluminum body, glass front, ceramic back |
| Protection against water and others | Not supported | Not supported |
📲 Display | ||
| Microsoft Lumia 640 (LTE) | Xiaomi Mi Mix 2 (64GB) | |
| Display type | TFT IPS LCD | TFT IPS LCD |
| Screen size | 5" inches | 5.99" inches |
| Screen-to-body ratio | ~67.6% (screen-to-body ratio) | ~80.8% (screen-to-body ratio) |
| Display resolution | 720x1280 pixels | 1080x2160 pixels |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
| Pixel density (dot pitch) | 294 PPI | 403 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Gorilla Glass 3 | Gorilla Glass 4 |
| Refresh rate | feature not registered | feature not registered |
| Display features | feature not registered | feature not registered |
🤖 Operating System | ||
| Microsoft Lumia 640 (LTE) | Xiaomi Mi Mix 2 (64GB) | |
| System version | Windows Phone 8.1 | Android 7.1 Nougat |
| Firmware update | feature not registered | Android 9.0 Pie |
| User Interface | feature not registered | feature not registered |
⚙️ Processor | ||
| Microsoft Lumia 640 (LTE) | Xiaomi Mi Mix 2 (64GB) | |
| Chipset | 32bit: Qualcomm Snapdragon 400 MSM8926 (28nm) | 64bit: Qualcomm Snapdragon 835 (MSM8998) (10nm) |
| CPU | Quad-core, 1 processor: 4x 1.2GHz ARM Cortex-A7 (Quad-core) | Octa-core, 2 processors: 4x 2.45GHz Kryo 280 (Quad-core) 4x 1.9GHz Kryo 280 (Quad-core) |
| GPU graphical controller | Qualcomm Adreno 305 400Mhz | Qualcomm Adreno 540 (670-710MHz) |
| Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage | ||
| Microsoft Lumia 640 (LTE) | Xiaomi Mi Mix 2 (64GB) | |
| RAM memory | 1GB LPDDR2 | 6GB LPDDR4X |
| Internal storage | 8GB (3GB available) | 64GB (54GB available) eMMC 5.1 |
| External storage | Until 128GB microSD, microSDXC (dedicated slot) | Not supported |
📶 Mobile networks | ||
| Microsoft Lumia 640 (LTE) | Xiaomi Mi Mix 2 (64GB) | |
| Dual-SIM | Not supported | Dual-SIM Standby - Call active on one sim card |
| SIM card | 1 slot (Single-SIM) micro-SIM (3FF) | 2 slots (Dual-SIM) nano-SIM (4FF) |
| Maximum Download / Upload | 150/50 Mbps | 600/50 Mbps |
| Network technology | 2G, 3G, 4G | 2G, 3G, 4G |
| 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 | CDMA 800, GSM 850/900/1800/1900 |
| Primary 3G network | UMTS 850/900/2100 | CDMA2000 1xEV-DO TD-SCDMA 1900/2000 UMTS 800/850/900/1700/1800/1900/2100 |
| Primary 4G network | LTE Cat4 800/900/1800/2100/2600 (Bands 1/3/7/8/20) | LTE Cat12 (Bands 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 27, 28, 29, 30, 34) TD-LTE (Bands 38, 39, 40, 41) VoLTE |
| Primary 5G network | Not supported | Not supported |
| Primary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, LTE | GPRS, EDGE, CDMA2000 EV-DO Rev 0, CDMA2000 EV-DO Rev A, TD-SCDMA, UMTS, TD-HSDPA, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A |
| Secondary 2G network | Not supported | GSM 850/900/1800/1900 |
| Secondary 3G network | Not supported | Not supported |
| Secondary 4G network | Not supported | Not supported |
| Secondary data network | Not supported | GPRS, EDGE |
📷 Camera | ||
| Microsoft Lumia 640 (LTE) | Xiaomi Mi Mix 2 (64GB) | |
| Back camera (main camera) | 8 megapixels | 12 megapixels |
| Main camera resolution | 3264x2448 pixels | 4000x3000 pixels |
| Video recording (primary) | Full HD (1920x1080) 30 fps | 4K UHD (3840x2160) 30 fps |
| Flash | LED flash | Dual-LED flash |
| Focal aperture | f/2.2 (aperture) | f/2.0 (aperture) |
| Focal length | feature not registered | feature not registered |
| Sensor size | 1/4" inches | 1/2.9" inches |
| Pixel size | feature not registered | 1.25µm pixel |
| Autofocus | Autofocus | PDAF: phase detection autofocus |
| Touch focus | Supported | Supported |
| Image stabilization | feature not registered | OIS (4-axis): Optical stabilization |
| Zoom | Only digital zoom | Only digital zoom |
| Face/smile detection | Face detection | Face detection, Smile detection |
| BSI sensor | Supported | Not supported |
| HDR | HDR photo only main camera | HDR photo only main camera |
| Camera extras | feature not registered | feature not registered |
📸 Front camera | ||
| Microsoft Lumia 640 (LTE) | Xiaomi Mi Mix 2 (64GB) | |
| Front camera (secondary) | 1 megapixels | 5 megapixels |
| Front camera resolution | 1280x720 pixels | 2592x1944 pixels |
| Video recording (secondary) | HD (1280x720) | Full HD (1920x1080) |
| Front flash | Not supported | Not supported |
| Focal aperture | feature not registered | f/2.0 (aperture) |
| 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 | ||
| Microsoft Lumia 640 (LTE) | Xiaomi Mi Mix 2 (64GB) | |
| Loudspeaker | Supported | Supported |
| Active noise cancellation | 2 microphones or more | 2 microphones or more |
| Radio | FM | Not supported |
| TV | Not supported | Not supported |
| Video formats | MP4, H.264, H.263, WMV | MP4, H.265, H.264, H.263, MKV, XviD |
| Audio formats | MP3, WAV, WMA, eAAC+ | MP3, WAV, OGG, eAAC+, FLAC |
🔌 Connectivity | ||
| Microsoft Lumia 640 (LTE) | Xiaomi Mi Mix 2 (64GB) | |
| USB | MicroUSB 2.0 | USB 2.0 Type-C, USB OTG On-The-Go |
| Audio output | 3.5mm jack | Type-C reversible connector |
| TV output | Not supported | Not supported |
| Bluetooth | 4.0 + A2DP | 5.0 + A2DP/LE |
| WiFi | 802.11 b/g/n [wifi4] (2.4GHz) | 802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot |
| DLNA | Supported | Not supported |
| GPS | A-GPS, GeoTagging, GLONASS | A-GPS, GeoTagging, GLONASS, BeiDou |
| NFC | Supported | Supported |
| Infrared port | Not supported | Not supported |
🧭 Sensors | ||
| Microsoft Lumia 640 (LTE) | Xiaomi Mi Mix 2 (64GB) | |
| Sensors | Accelerometer Ambient light sensor Compass Proximity sensor | Accelerometer Ambient light sensor Barometer Compass Fingerprint sensor (rear-mounted) Gyroscope Hall effect Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Microsoft Lumia 640 (LTE) | Xiaomi Mi Mix 2 (64GB) | |
| Battery type | Li-Ion: lithium-ion (Removable) | Li-Ion: lithium-ion (Non removable) |
| Battery capacity | 2500 mAh | 3400 mAh |
| Charger, watts | Wired charging | 18W (9V/2A) Wired fast charging |
| Inductive / wireless charging | feature not registered | feature not registered |
| Talk time autonomy | 20 hours | feature not registered |
| Standby | 840 hours (35 days) | feature not registered |
➕ Other features | ||
| Microsoft Lumia 640 (LTE) | Xiaomi Mi Mix 2 (64GB) | |
| Call control | Voice dialing, Voice recorder | Voice dialing, Voice recorder, Voice commands |
| Messaging | SMS (T9), MMS, E-mail, Push mail | SMS (T9), MMS, E-mail, Push mail |
| Hands-free calling | Supported | Supported |
| Video calling | Supported | Supported |
| Ringtones | Polyphonic and customized | Polyphonic and customized |
| Web browser | HTML, XHTML, HTML5 | HTML, XHTML, HTML5 |
| Antenna | Internal antenna | Internal antenna |
| Qwerty physical keyboard | Not supported | Not supported |
| Miscellaneous | • Colors: Black • Lumia Denim UI • Microsoft ClearBlack display • OneDrive 30GB • Beidou GPS • WiFi hotspot | • Colors: Black, White • MIUI 9 • Quick Charge 3.0 • Type-C to 3.5mm headphone jack adapter • 720p@120fps slow motion • Miracast |
☢️ Radiation rate | ||
| Microsoft Lumia 640 (LTE) | Xiaomi Mi Mix 2 (64GB) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | feature not registered | feature not registered |
| SAR 2W/kg (Europe, UK, etc.) | feature not registered | feature not registered |