| Model and physical features | Microsoft Lumia 640 |
| Model | |
| Also known as | Microsoft Lumia 640 3G Dual Sim, Microsoft RM-1109 |
| Country or region available | feature not registered |
| Brand | Microsoft |
| Release date | April, 2015 |
| Depth | 8.8 millimeters (0.35 inches) |
| Size (width x height) | 72.2 x 141.3 millimeters (2.84 x 5.56 in) |
| Weight | 145 grams (5.08 ounces) |
| Qwerty physical keyboard | Not supported |
| Antenna | Internal antenna |
| Build, materials | feature not registered |
| Protection against water and others | Not supported |
| Operating system (OS) | Microsoft Lumia 640 |
| Operating system | Windows Phone 8.1 |
| Firmware update | feature not registered |
| Hardware | Microsoft Lumia 640 |
| Architecture - Chipset | 32bit - Qualcomm Snapdragon 400 MSM8926 (28nm) |
| CPU processor | 1.2Ghz Quad-Core ARM Cortex-A7 |
| GPU graphical controller | Qualcomm Adreno 305 400Mhz |
| RAM memory | 1GB LPDDR2 |
| Internal storage | 8GB (3GB user available) |
| External storage | Until 128GB microSD, microSDHC, microSDXC
(dedicated slot) |
| Display | Microsoft Lumia 640 |
| Display type | TFT LCD IPS |
| Screen size | 5" inches |
| Screen-to-body ratio | ~67.6% (screen-to-body ratio) |
| Touchscreen | Capacitive Multitouch |
| Display resolution | 720x1280 pixels |
| Pixel density (dot pitch) | 294 PPI |
| Colors | 16 million |
| Scratch-resistant glass | Gorilla Glass 3 |
| Mobile networks and data | Microsoft Lumia 640 |
| Dual-SIM | Dual SIM Standby - Call active on one sim card
(dedicated slot) |
| SIM card | 2 slots Dual-SIM
micro-SIM (3FF) |
| GSM Mhz band | Quad-Band 850/900/1800/1900 |
| Primary 2G network | GSM 850/900/1800/1900 |
| Primary 3G network | UMTS 850/900/1900/2100 |
| Primary 4G/5G network | Not supported |
| Primary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+ |
| Secondary 2G network | GSM 850/900/1800/1900 |
| Secondary 3G network | Not supported |
| Secondary 4G network | Not supported |
| Secondary data network | GPRS, EDGE |
| Maximum download/upload | 42/5.76 Mbps |
| Messaging and calling | Microsoft Lumia 640 |
| Messaging | SMS (T9), MMS, E-mail, Push mail |
| Speakerphone | Supported |
| Video calling | Supported |
| Call control | Voice dialing, Voice recorder |
| Primary / back camera | Microsoft Lumia 640 |
| Main camera | 8 megapixels |
| Main camera resolution | 3264x2448 pixels |
| Video recording (primary) | Full HD (1920x1080 pixels) 30 fps |
| Flash | LED flash |
| Focal aperture | f/2.2 (aperture) |
| Focal length | feature not registered |
| Sensor size | 1/4" inches |
| Pixel size | feature not registered |
| Autofocus | Autofocus |
| Touch focus | Supported |
| Image stabilization | feature not registered |
| Zoom | Only digital zoom |
| Face/smile detection | Face detection |
| BSI sensor | Supported |
| HDR | HDR photo only main camera |
| Front / secondary camera | Microsoft Lumia 640 |
| Front camera | 1 megapixels |
| Front camera resolution | 1280x720 pixels |
| Video recording (secondary) | HD (1280x720 pixels) |
| Front flash | Not supported |
| Focal aperture | feature not registered |
| Focal length | feature not registered |
| Sensor size | feature not registered |
| Pixel size | feature not registered |
| Multimedia | Microsoft Lumia 640 |
| Radio | FM |
| TV | Not supported |
| Video formats | MP4, H.264, H.263, WMV |
| Audio formats | MP3, WAV, WMA, eAAC+ |
| Connectivity and interfaces | Microsoft Lumia 640 |
| USB | MicroUSB 2.0 |
| TV output | Not supported |
| Audio output | 3.5mm jack |
| Bluetooth | 4.0 version A2DP |
| WiFi | 802.11 b/g/n (2.4Ghz) |
| DLNA | Supported |
| NFC | Not supported |
| GPS | A-GPS, GeoTagging, GLONASS |
| Infrared port | Not supported |
| Other functions | Microsoft Lumia 640 |
| Active noise cancellation | Supported |
| Vibrating alert | Supported |
| Ringtones | Polyphonic and customized |
| Web browser | HTML, XHTML, HTML5 |
| Java / Flash player | Not supported |
| Sensors | Accelerometer
Proximity
Compass
Ambient Light
|
| Other features | - Colors: Black
- Lumia Denim UI
- Microsoft ClearBlack display
- OneDrive 30GB
- Beidou GPS
- WiFi hotspot |
| Power supply and autonomy | Microsoft Lumia 640 |
| Battery technology | Li-Ion (Removable) |
| Battery capacity | 2500 mAh |
| Battery model / charger (watts) | feature not registered |
| Talk time | 1200 minutes | 20 hours | 0.8 day |
| Standby | 50400 minutes | 840 hours | 35 days |
| Specific absorption rate (radiation) | Microsoft Lumia 640 |
| SAR USA, Mexico, Colombia | feature not registered |
| SAR European Union, UK | feature not registered |