| DESIGN AND DIMENSIONS | Microsoft Lumia 640 Dual Sim | - |
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| Product Type | Smartphone | - |
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| Form Factor | Touch | - |
| Height | 141.3 mm | - |
| Width | 72.2 mm | - |
| Depth | 8.8 mm | - |
| Weight | 145 g | - |
| Body Colour | Matte black | - |
| Waterproof (Water-resistant) | - | - |
| Integrated Components | FM radio | - |
| Connector Type | Micro-USB - 5 pin Micro-USB Type B Headset / AV composite out - mini-phone 3.5mm |
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| SIM Card Type (Size) | Micro SIM | - |
| SIM Card Qty | Dual-SIM | - |
| DISPLAY | Microsoft Lumia 640 Dual Sim | - |
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| Display Type | LCD display | - |
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| Screen Size (Display Size) | 5" | - |
| Screen Resolution (Display Resolution) | 1280 x 720 pixels | - |
| Display Format | HD | - |
| Pixel Density | 294 ppi | - |
| Colour Depth | 16.7 million colours | - |
| Display Features | ClearBlack | - |
| Display Protection (Screen Protector) | Corning Gorilla Glass 3 (scratch resistant glass) | - |
| PROCESSOR | Microsoft Lumia 640 Dual Sim | - |
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| Processor Type (CPU) | Qualcomm Snapdragon 400 | - |
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| Clock Speed | 1.2 GHz | - |
| Processor Core Qty | Quad-core | - |
| MEMORY | Microsoft Lumia 640 Dual Sim | - |
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| RAM | 1 GB | - |
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| Internal Memory Size (Storage Capacity) | 8 GB | - |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSDXC - up to 128 GB | - |
| CAMERA | Microsoft Lumia 640 Dual Sim | - |
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| MAIN CAMERA |
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| Number of Main Cameras | 1 | - |
|---|---|---|
| Sensor Resolution | 8 Megapixel | - |
| Sensor Type | BSI | - |
| Lens Aperture | F/2.2 | - |
| Focus Adjustment | Automatic | - |
| Minimum Focal Length (Focal Distance) | 28 mm | - |
| Digital Zoom | 4x | - |
| Light Source | LED light | - |
| Video Resolutions | 1920 x 1080 (1080p) | - |
| Camera Features (Functions) | Lumia Refocus | - |
| FRONT CAMERA |
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| Number of Front Cameras | 1 | - |
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| Sensor Resolution (Front) | 0.9 Megapixel | - |
| BATTERY AND CHARGING | Microsoft Lumia 640 Dual Sim | - |
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| Battery Capacity (Battery Size) | 2500 mAh | - |
|---|---|---|
| Standby Time | 840 hours | - |
| Talk Time | 1638 minutes | - |
| Run Time Details | Talk (GSM): up to 1638 min Talk (WCDMA): up to 1218 min Playback (video): up to 8.7 hrs Playback (Music): up to 86 hrs Active online usage (Wi-Fi): up to 10.9 hrs Standby: up to 840 hrs |
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| Battery Technology | Lithium Ion | - |
| CELLULAR | Microsoft Lumia 640 Dual Sim | - |
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| Technology | WCDMA (UMTS) / GSM | - |
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| Mobile Broadband Generation | 3G | - |
| Operating System | Windows Phone OS 8.1 with Lumia Denim update | - |
| Intelligent Assistant | Cortana | - |
| Navigation | GPS, A-GPS, GLONASS, BeiDou | - |
| COMMUNICATIONS | Microsoft Lumia 640 Dual Sim | - |
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| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+ | - |
|---|---|---|
| 2G Band | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM | - |
| Wireless Interface | IEEE 802.11b/g/n | - |
| Bluetooth | Bluetooth 4.0 | - |
| Bluetooth Profiles | HFP, OPP, PAN, A2DP, AVRCP, HID, PBAP, MAP, GATT | - |
| WLAN Security | WEP, WPA, WPA2, TKIP, AES | - |
| Communication Features | Mobile Email client, Internet browser | - |
| Messaging Services | Skype, WhatsApp, SMS, MMS | - |
| MEDIA | Microsoft Lumia 640 Dual Sim | - |
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| Supported Digital Audio Standards | AAC, AMR, MP3 | - |
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| Supported Digital Video Standards | VC-1, AVC, MPEG-4, WMV, H.264, H.263 | - |
| FEATURES | Microsoft Lumia 640 Dual Sim | - |
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| Phone Functions | Speakerphone, voice control, call timer, conference call, vibrating alert | - |
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| Sensors | Accelerometer, ambient light sensor, proximity sensor, magnetometer | - |
| Personal Information Management | Calendar, synchronization with PC, calculator, reminder, alarm clock | - |
| Dual SIM Card Capability | Yes | - |
| Additional Phone Features | TTY compatible, DLNA Certified, Text-to-Speech (text recognition), sharing media via DLNA, Kid's Corner, Noise Cancellation Technology, Lumia Color profile, Word Flow keyboard, Power Saving Mode, SensorCore technology | - |
| OTHERS | Microsoft Lumia 640 Dual Sim | - |
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| Included Accessories | Power adapter | - |
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