Brand Microsoft
Model Lumia 640 Dual SIM 3G
Released 2015 Mar
Hardware Designer Microsoft Mobile
OEM ID RM-1077
Device Category Smartphone
Width 72.2 mm
Height 141.3 mm
Depth 8.85 mm
Dimensions 2.84×5.56×0.35 inches
Mass 145 g
Platform Windows (mobile-class)
Operating System Microsoft Windows Phone 8.1
CPU Clock 1200 MHz
CPU Qualcomm Snapdragon 400 MSM8226 (Snapdragon S4 ), 2013, 32 bit, quad-core, 16 Kbyte I-Cache, 16 Kbyte D-Cache, 1024 Kbyte L2, 28 nm, Qualcomm Adreno 305 GPU
RAM Type Yes
RAM Capacity (converted) 1 GiB RAM
Non-volatile Memory Interface eMMC 4.5
Non-volatile Memory Capacity (converted) 8 GB ROM
Display Diagonal 127 mm
Resolution 720×1280
Horizontal Full Bezel Width 9.94 mm
Display Area Utilization 67.6%
Pixel Density 294 PPI
Display Type Color IPS TFT LCD display
Display Subtype ClearBlack (CBD)
Number of Display Scales 16.8M
Scratch Resistant Screen Gorilla Glass 3
Graphical Controller Qualcomm Adreno 305
Dedicated Graphics Memory 0.25 MiB
A/V Out No
Microphone(s) mono
Loudspeaker(s): mono
Audio Output: 3.5mm
Supported Cellular Bands GSM850 , GSM900 , GSM1800 , GSM1900 , UMTS2100 (B1) , UMTS1900 (B2) , UMTS850 (B5) , UMTS900 (B8) bands
Supported Cellular Data Links GPRS , EDGE , UMTS , HSUPA , HSUPA 5.8 , HSDPA , HSPA+ 21.1 data links
SIM Card Slot Micro-SIM (3FF)
Complementary Phone Services Voice transmission , Voice speaker , Vibrate , Speakerphone
Dual Cellular Network Operation Dual standby
Sec. Supported Cellular Networks: GSM850 , GSM900 , GSM1800 , GSM1900
Lumia 640 Dual SIM 3G
Sec. Supported Cellular Data Links: GPRS , EDGE
Sec. SIM Card Slot Micro-SIM (3FF)
Touchscreen Type Capacitive multi-touch screen
Expansion Interfaces TransFlash , microSD , microSDHC , microSDXC
USB Services USB charging
USB Connector USB Micro-B (Micro-USB)
Bluetooth Bluetooth 4.0
Wireless LAN 802.11b , 802.11g , 802.11n
Wireless Services DLNA , Miracast , Wi-Fi Direct , Wi-Fi Tethering
FM Radio Receiver FM radio (76-108 MHz) with RDS
Complementary Satellite Services A-GPS , Geotagging , QuickGPS
Supported GLONASS protocol(s) L1OF
Supported BeiDou system (BDS) B1I BeiDou receiver
Camera Placement Rear
Camera Image Sensor BSI CMOS
Number of effective pixels 8.1 MP camera
Aperture (W) f/2.20
Zoom 1.0 x optical zoom
Focus CD AF
Min. Equiv. Focal Length 28 mm
Video Recording 1920×1080 pixel
Flash single LED
Camera Extra Functions Macro mode , Panorama Photo , Face detection
Aux. Camera Image Sensor No
Aux. 2 Camera Image Sensor No
Aux. 3 Camera Image Sensor No
Aux. 4 Camera Image Sensor No
Secondary Camera Placement Front
Secondary Camera Sensor CMOS
Secondary Camera Number of pixels 0.9 MP sec. cam
Secondary Aperture (W) f/2.40
Secondary Video Recording 1280×720 pixel
Sec. Aux. Cam. Image Sensor No
Built-in compass Yes
Built-in accelerometer Yes
Additional sensors L sensor , P sensor
Protection from solid materials Yes
Protection from liquids Yes
Battery Li-ion
Nominal Battery Capacity 2500 mAh battery
Talk Time: 20.0 hours
Market Countries Czech , Germany , Hungary , Poland , Romania , Russia
Market Regions Eastern Europe , Europe , Western Europe
Added 2024-06-26

Specifications data description of this ๐Ÿ“ฑMicrosoft Lumia 640 Dual SIM 3G๐Ÿ“ฑ

Title: The Ultimate Specification Guide for Your Device ๐ŸŒ๐Ÿ“…๐Ÿ‹๏ธ๐ŸŒˆ๐Ÿค–๐Ÿ› ๏ธ๐Ÿš€๐Ÿ”ง๐Ÿ’ช๐Ÿ–ฅ๏ธ๐ŸŽฎ๐Ÿง ๐Ÿ—‚๏ธ๐Ÿ“ท๐ŸŽฅ๐Ÿ”ˆ๐Ÿ“ก๐Ÿ“ถ๐Ÿ’ก๐Ÿ’Ž๐Ÿ”‹๐Ÿ”Œ


Welcome to our comprehensive guide on the latest device specifications. In this post, we will delve into the nitty-gritty of the device’s features, providing you with a thorough understanding of its capabilities. From the ๐ŸŒNETWORK and LAUNCH๐Ÿ“…, to the BODY๐Ÿ‹๏ธ, DISPLAY๐ŸŒˆ, OS ๐Ÿค–, CHIPSET ๐Ÿ› ๏ธ, CPU ๐Ÿ–ฅ๏ธ, GPU ๐ŸŽฎ, MEMORY ๐Ÿง , CAMERA ๐Ÿ“ท, SOUND ๐ŸŽต, COMMS ๐Ÿ“ก, FEATURES ๐ŸŽ, BATTERY ๐Ÿ”‹, and everything in between, we’ve got you covered.


Our latest device boasts a range of impressive specifications aimed at delivering an unparalleled user experience. The lineup includes:

1. ๐ŸŒNETWORK: 5G/4G/3G connectivity, ensuring seamless and super-fast browsing.

2. ๐Ÿ“…LAUNCH: Available now, so you can get your hands on this amazing device today!

3. ๐Ÿ‹๏ธBODY: Lightweight and durable, with a sleek and stylish design.

4. ๐ŸŒˆ DISPLAY: A vibrant, high-resolution display that brings your content to life.

5. ๐Ÿค– OS: The latest operating system, offering cutting-edge features and seamless integration.

6. ๐Ÿ› ๏ธ CHIPSET: A powerful chipset that delivers lightning-fast processing and unrivaled performance.

7. ๐Ÿ–ฅ๏ธ CPU: A high-performance CPU that ensures smooth and efficient operation.

8. ๐ŸŽฎ GPU: A dedicated graphics processing unit that delivers top-quality visuals.

9. ๐Ÿง  MEMORY: Ample memory for multitasking and storing all your favorite apps and media.

10. ๐Ÿ“ท CAMERA: Advanced cameras that capture stunning photos and videos, with a range of modes and features.

11. ๐ŸŽต SOUND: Rich, immersive sound, perfect for music, movies, and gaming.

12. ๐Ÿ“ก COMMS: Advanced communication capabilities, including Wi-Fi, Bluetooth, and NFC.

13. ๐Ÿ’ก FEATURES: An array of features designed to enhance your user experience.

14. ๐Ÿ’Ž BATTERY: A long-lasting battery that keeps you powered up all day long.


The device boasts a sleek and stylish design that is both lightweight and durable. The high-resolution display provides vibrant, lifelike visuals, while the powerful chipset and CPU ensure smooth and efficient operation.


The device’s specifications are as follows:

๐ŸŒNETWORK: 5G/4G/3G connectivity
๐Ÿ“…LAUNCH: Available now
๐Ÿ‹๏ธ BODY: Lightweight, durable, and stylish design
๐ŸŒˆ DISPLAY: High-resolution display
๐Ÿค– OS: Latest operating system
๐Ÿ› ๏ธ CHIPSET: Powerful chipset
๐Ÿ–ฅ๏ธ CPU: High-performance CPU
๐ŸŽฎ GPU: Dedicated graphics processing unit
๐Ÿง  MEMORY: Ample memory
๐Ÿ“ท CAMERA: Advanced cameras
๐ŸŽต SOUND: Rich, immersive sound
๐Ÿ“ก COMMS: Advanced communication capabilities
๐Ÿ’ก FEATURES: Array of features
๐Ÿ”‹ BATTERY: Long-lasting battery


In conclusion, our latest device offers an impressive range of specifications, designed to provide an unrivaled user experience. From the powerful CPU and GPU, to the advanced cameras and high-resolution display, there’s something for everyone.

We hope this guide has provided you with a thorough understanding of the device’s capabilities. We invite you to leave a comment below, sharing your thoughts on the device and your plans to upgrade. Thanks for reading!