信息系统
| 短信服务(SMS) |
Y |
| 邮件 |
Y |
| 聊天 |
Y |
| MMS(多媒体信息服务) |
Y |
| 即时传讯（IM） |
Y |
导航
| Wi-Fi定位 |
Y |
| GPS |
Y |
| 辅助GPS功能（A - GPS) |
Y |
| GPS |
Y |
| 全球导航卫星定位系统（格洛纳斯系统GLONASS） |
Y |
照相机
| 视频录制模式 |
720p, 1080p |
| 视频录制 |
Y |
| Maximum frame rate |
30 fps |
| 自动对焦 |
Y |
| 前置摄像头 |
Y |
| 数字变焦 |
4 x |
| 后置摄像头分辨率（数字） |
8 MP |
| 内置闪光灯 |
Y |
| 前置摄像头分辨率（数字） |
0.9 MP |
性能
| 视频通话 |
Y |
| 主题 |
Wallpapers |
| 飞行模式 |
Y |
| 个性化 |
Shortcuts, Menu, Icons |
| 话筒静音 |
Y |
| 个人信息管理 |
Alarm clock, Calculator, Calendar, Events reminder, Notes, To-do list |
联网
| 3G |
Y |
| 无线局域网连接 |
Y |
| 4G |
N |
| 蓝牙 |
Y |
| SIM卡插槽 |
Dual SIM |
| 共享（调制解调器模式） |
Y |
| 2G标准 |
GSM, GPRS |
| 3G标准 |
WCDMA |
| 可支持的3G频段 |
850, 900, 1900, 2100 MHz |
| SIM卡类型 |
MicroSIM |
端口 & 界面
| USB端口 |
Y |
| USB版本 |
2.0 |
| USB 连接器形状 |
Micro-USB B |
存储介质
| 内部存储容量 |
8 GB |
| USB大容量 |
Y |
| 最大内存卡大小 |
128 GB |
显示器
| 触控技术 |
Multi-touch |
| 方位感应器 |
Y |
| 像素密度 |
294 ppi |
| 显示类型 |
IPS |
呼叫处理
| 免提听筒电话 |
Y |
| 通话计时器 |
Y |
| 呼叫转移 |
Y |
| 语音拨号 |
Y |
| 通话保持 |
Y |
| 语音指令 |
Y |
| 会议呼叫能力 |
Y |
| 快速拨号 |
Y |
| 振动提示 |
Y |
| 呼叫等待 |
Y |
| 主叫号码 |
Y |
电池
| 电池充电时间 |
8.7 h |
| 浏览时间（Wi-Fi 无线网络） |
10.9 h |
| 待机时间（3G) |
840 h |
| 通话时间（3G） |
20.3 h |
| 通话时间（2G） |
27.3 h |
| 连续视频播放时间 |
86 h |
另外
| 电池性能 |
2500 mAh |
| 包括 AC 适配器 |
Y |
| 内部RAM |
1 GB |
12.7 cm (5 ") 1280x720 IPS, DualSIM, 3G, Qualcomm Snapdragon 400 1.2GHz, 1GB RAM, 8GB eMMC, MicroSD, 8/0.9MP, 802.11b/g/n, A-GPS, A-GLONASS, 2500mAh, 145g, Windows Phone 8.1, Orange
<b>Microsoft Lumia 640 Dual SIM</b>
You never know when you’ll come up with your next great idea. So be ready to capture your creativity with a phone that has everything you need to turn inspiration into action.
<b>Life made easier</b>
Open the box and power on your Lumia 640 Dual SIM to the full range of free Microsoft services built in and ready to go. Connect to friends and family with Skype, enjoy instant access to your photos and music on OneDrive, and edit files with Microsoft Office from wherever you are. Balancing your work life and personal life just became easier.
<b>Power-infused performance</b>
Loaded with all the power you need, the Lumia 640 Dual SIM works as fast and efficiently as you do. It’s a workhorse that lets you concentrate more on what you're doing at any moment, with its Qualcomm® Snapdragon™ processor and Microsoft Office built in. And you’ll have plenty of juice to help you achieve more with the whopping 2500 mAh battery.
<b>Capture your world with clarity</b>
Want to relive your favorite moments? Capture all of them with superb quality and ease using the Lumia Camera app and 8 MP rear camera, then upload them to your free OneDrive cloud storage to bring back the moment. And with the wide-angle, front-facing camera, let your family and friends see more of your surroundings clearly in your free HD Skype video calls.
<b>Your favorite apps in a whole new way</b>
Get all the apps and games you want and see them come to life on the 5 inch HD display. Take your pick from a growing selection of hundreds of thousands of apps in Windows Phone Store – from Trip Advisor to Instagram to WhatsApp to Candy Crush Saga. They’re all available and always secure.
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It’s the small things in life that make a big difference. From the convenience of Action Center to the magic of Live Tiles, the simplicity of Windows Phone makes everyday tasks easier so you can focus on doing what you love.
<b>Accessible at any time</b>
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<b>Hi there. I'm Cortana.</b>
Meet Cortana, the most talked about assistant with a personal touch. From giving you the latest traffic conditions to reminding you to pick up a gift for mom's birthday, she's always available and ready to help. And of course, you have complete control over just how much Cortana knows about you.
<b>What would my Lumia look like?</b>
Try our personalization tool and create your own unique Lumia experience.
