联网
| 4G |
Y |
| 近场通信（NFC） |
Y |
| 3G |
Y |
| 2G标准 |
GSM, GPRS, EDGE |
| 共享（调制解调器模式） |
Y |
| Wi-Fi直连 |
Y |
| 支持 4G 频段 |
2600, 2500, 2300, 2100, 1900, 1800, 900, 850 MHz |
| 3G标准 |
HSDPA, HSPA, TD-SCDMA |
| 可支持的3G频段 |
850, 900, 1900, 2100 MHz |
| SIM卡类型 |
MicroSIM + NanoSIM |
| SIM卡插槽 |
Dual SIM |
| 4G标准 |
LTE |
| 蓝牙模式 |
A2DP |
| 蓝牙 |
Y |
| 无线局域网类型 |
IEEE 802.11n, IEEE 802.11g, IEEE 802.11b, IEEE 802.11ac, IEEE 802.11a |
| 无线局域网连接 |
Y |
处理器
| 处理器频率 |
2.1 GHz |
| 核心的处理器数量 |
10 |
存储介质
| 内部存储容量 |
32 GB |
| 最大内存卡大小 |
158 GB |
| USB大容量 |
Y |
照相机
| 视频录制 |
Y |
| 自动对焦 |
Y |
| 变焦能力 |
Y |
| 闪光类型 |
LED |
| 地理标签 |
Y |
| 人脸检测 |
Y |
| Maximum frame rate |
120 fps |
| 内置闪光灯 |
Y |
| 微笑检测 |
Y |
| 视频录制模式 |
720p, 1080p |
| Rear camera type |
Single camera |
| 前置摄像头 |
Y |
| 后置摄像头分辨率（数字） |
13 MP |
显示器
| 触控技术 |
Multi-touch |
| 第二个液晶屏 |
N |
| 方位感应器 |
Y |
| 显示类型 |
IPS |
| 像素密度 |
401 ppi |
| 屏幕形状 |
Flat screen |
性能
| 视频通话 |
Y |
| 飞行模式 |
Y |
| 个性化 |
Shortcuts, Menu, Icons |
| 支持联络小组 |
Y |
| 个人信息管理 |
Alarm clock, Calculator, Calendar, Notes |
| 话筒静音 |
Y |
| 主题 |
Wallpapers |
呼叫处理
| 免提听筒电话 |
Y |
| 通话计时器 |
Y |
| 呼叫转移 |
Y |
| 通话保持 |
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 |
信息系统
| 聊天 |
Y |
| MMS(多媒体信息服务) |
Y |
| 即时传讯（IM） |
Y |
| 短信服务(SMS) |
Y |
| 邮件 |
Y |
导航
| 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 |
| 电子罗盘 |
Y |
端口 & 界面
| USB 连接器形状 |
Micro-USB |
| USB版本 |
2.0 |
| USB端口 |
Y |
另外
| 电池性能 |
4100 mAh |
| 包括 AC 适配器 |
Y |
| 内部RAM |
3 GB |
13.97 cm (5.5 ") , 1080 × 1920, Mediatek MT6797 Helio X20, Deca-core 2.1 GHz, 3 GB RAM, 13MP, Android 6.0 Marshmallow
<b>All-metal. Hexa-core</b>
Exquisite craftsmanship, luxury all-metal design
Metal unibody combining, focus on details for superior quality and texture. The ultra-slim body makes the device more portable to be carried with.
The scientific design makes the frame look slimmer and more comfortable to touch. Gives you not only an elegant and beautiful appearance but also elegant and comfort handle
<b>Diamond cutting for smooth, clear lines</b>
High-quality materials and the latest technology aluminum ingot processing and polishing to a shine give us a super smooth and uniform texture.
<b>2.5D Arc screen design</b>
Stylish 2.5D arc screen design makes Redmi Note 4 more appealing. Besides, such a nice screen design brings rounded edges and a wonderful handle feeling.
<b>Built-in antenna</b>
For metallic casing add plastic strip not just for decoration but in order to achieve optimization and signal improvements. But it made the design more simple and perfect.
<b>High-speed</b>
MediaTek Helio X20 Hexa-core high-performance processor
Provides high-speed operating experience anytime, can increase performance by 62% and save up to 30% power-consumption. Allows you to run multitasks without any pressure, ensures you smooth operation and stable multitasking experience.
<b>Long standby time, long lasting performance</b>
With its 4100mAh high-capacity battery, Redmi Note 4 gives you more time to call, connect, play, and watch offers you enough power to meet all your needs, no need to worry about running out of power.
Not only offers you enough power to support your daily life, but also ensures a longer battery life.
The challenge is to make the battery thinner and light, it was solved when the energy density was increased to 713Wh / L. It is difficult to imagine so slim smartphone, just 175 g weight, with an excellent autonomy — a few days without charge, one day of gaming, and 12 hours in GPS mode.
<b>Smart recognition</b>
Faster touch access, more secure payment
Fingerprint recognition function is supported, allows you to unlock in quickly. Otherwise, it`s also for shopping payment, private file check, personal space access. More convenient, safer.
<b>Perfect user experience</b>
“Second space” — is the ability to create multiple spaces for different users. The second space can contain completely different applications and components that you configure. After setting up a password for second space, we can enter different spaces with its password on the lock screen.
Now we can create another copy of the application, which would come under a different account.
<b>Perfect for your eyes</b>
Shows you a more vivid world with a 5.5 ″ FHD display, the high resolution achieves a richer viewing experience, this large screen will give you an inimitable visual experience. Provides you with several display effects, no matter you`re reading, watching videos or using exciting apps, you can find the corresponding display model to protect your eyes.
For the comfortable reading, enable the appropriate mode, Screen will become more similar to the color of the paper and reduce the amount of blue that would protect your eyes.
<b>Modern design</b>
In addition to the several memory versions, models differ by colors.
There are five variants of the body color — black, silver, gold, blue and dark gray. The front panel is black on the dark gray, blue and black version and white in the other cases.
The keys on the front panel are sensory.
On the upper face located 3.5 mm jack for headphones, infrared port to control home appliances and light sensor. On the underside, there are speakers, a microphone, and a MicroUSB port for charging.
