| Brand |
Microsoft |
| Model |
Lumia 640 Dual SIM |
| Operating System |
Windows Phone v8.1 |
| SIM Slot(s) |
Dual SIM, GSM+GSM |
| SIM Size |
Micro |
| Box Contents |
Handset, Battery, Charger, User Manual, Warranty Card |
| Processor |
Quad core, 1.2 GHz, Cortex A7, Chipset: Qualcomm MSM8926 Snapdragon 400 |
| RAM |
1 GB |
| Internal Memory |
8 GB |
| Expandable Memory |
Up to 128 GB |
| Screen Size |
5.0 inches |
| Screen Resolution |
HD (720 x 1280 pixels) |
| Pixel Density (sharpness) |
294 ppi |
| Display Type |
IPS LCD |
| Screen Protection |
Corning Gorilla Glass, v3 |
| Main Camera |
8 MP, Auto focus |
| Front Camera |
1 MP |
| Flash |
LED |
| Video Recording |
Full HD @ 30 FPS, Recording Formats: H.264, MP4, Continuous autofocus in a video, Video zoom |
| Zoom |
Digital Zoom, 4 x |
| Camera Features |
Back-illuminated sensor (BSI), Face detection, Geo tagging, Touch to focus |
| Capacity |
2500 mAH, Li-ion |
| TalkTime |
Up to 26.5 Hours(2G) / Up to 17.5 Hours(3G) |
| Operating Frequency |
GSM 1800 / 1900 / 850 / 900 MHz UMTS 2100 / 850 / 900 MHz SIM 2: GSM 1800 / 1900 / 850 / 900 MHz |
| 3G |
HSDPA 42.2 Mbit/s, HSUPA 5.76 Mbit/s |
| Wi-Fi |
Wi-Fi 802.11, b/g/n |
| Bluetooth |
v4.0, A2DP, AVRCP, GATT, HFP, HID, MAP, OPP, PAN, PBAP |
| GPS |
with A-GPS, Glonass |
| USB Connectivity |
USB Port, microUSB 2.0 |
| More Connectivity |
Computer sync, DLNA, NFC, OTA sync, Tethering |
| Touch Screen |
Capacitive Touchscreen, Multi-touch |
| Weight |
145 grams |
| Dimensions |
141.3 x 72.2 x 8.8 mm |
| Sensors |
Accelerometer, Compass, Light sensor, Proximity sensor |
| Audio Jack |
3.5 mm |
