Xiaomi Redmi 9 评测

如果 Redmi Note 9 系列仍然超出你的预算，也别担心，因为我们有去年大获成功的 Redmi 8 的继任者——性价比极高的 Redmi 9。尽管价格低廉，它仍有诸多亮点，包括强大的 MediaTek Helio G80 芯片组、共计五摄像头以及大容量电池。

On paper, it’s definitely eye-catching. But is it worth every peso? Let’s find out.

设计与建造

从外观设计开始，它手感相当沉重。它感觉相当坚固，并且不太易碎，可能是因为塑料材质，尽管如此，它看起来一点也不差。

后盖除了采用塑料材质外，还拥有相当酷炫的设计，呈现从后置摄像头区域向外扩散的波纹。我们这里有四摄像头，分为两个不同的模块，这是一种有趣的实现方式。

首先，我们拥有 6.53 英寸的屏幕，按今天的标准来看，边框确实偏厚。它采用水滴形刘海来容纳前置摄像头和扬声器。

左侧是三卡托，设有专用槽位，可容纳两张 nano SIM 卡和一张 microSD 卡。右侧是音量调节键和电源键。手感舒适，点击有声，位置恰好，拇指或手指都能轻松触及。

The bottom is pretty much complete, featuring a headphone jack, USB Type-C port, the main microphone, and loudspeaker. Up top, we have the secondary noise-canceling microphone as well as an IR blaster, a feature Redmi fans continue to enjoy.

我们会把这款设计形容为简约而实用。它既有耳机插孔，又有 Type-C 接口，还配备红外发射器和专用的 SD 卡槽。这是一系列许多用户都在寻找的功能。

显示与多媒体

在显示方面，Redmi 9 使用 6.53 英寸 FHD+ IPS 面板，分辨率为 2340 x 1080，像素密度为 395ppi。它还配备了康宁 Gorilla Glass 3 保护。

Display quality is above average for an entry-level phone, as a 720p displays are typically expected at this price point. As such, details are crisp, colors are vibrant thanks to the quality of the panel, and it gets pretty bright as well -- it's advertised to have 400 nits of typical brightness, which does seem to be the case.

至于音质，不要期望太高。单个向下发射的扬声器在小空间内可以达到响亮的音量，但低音明显不足。中音和高音清晰，但在高音量时细节会丢失。最多只能用于个人聆听或扬声器通话。

相机

Redmi 9 配备了四个后置摄像头。它有 13MP 主摄像头、8MP 超广角、5MP 微距和 2MP 深度传感器。自拍时，它使用单个 8MP 镜头。

后置摄像头的色彩表现不佳，往往显得有些不饱和且偏向冷色调。超广角镜头尤其如此，且边缘会出现明显的畸变。

后置摄像头的竖拍模式由于深度传感器，能够产生令人愉悦的散景效果并实现不错的主体与背景分离，但仍然存在前文提到的颜色问题。我们还配备了微距镜头，适合拍摄酷炫的极致特写。

The front camera is one redeeming factor for the Redmi 9's camera system. With good lighting, you can get some great selfies whether using the standard mode or portrait mode. Skin tones look great, and there's a lot of detail.

至于视频，Redmi 9 可以拍摄最高 1080p、30FPS，这对于大多数只想为社交媒体快速录制短片的用户来说已经足够。

OS, UI, and Apps

Redmi 9 运行在基于 Android 10 的 MIUI 11 上，尽管用户应该可以在某个时点期待更新到 MIUI 12。无论您之前是否使用过，MIUI 由于其简洁的外观和易用性，总是令人愉快的使用体验。

It uses multiple home screens to keep your apps, and you can choose between traditional navigation buttons and swipe gestures.

预装应用包括标准 Google 套件、Facebook、Netflix、Linkedin、WPS Office，以及一些简单的游戏。

Out of our unit's 32GB of internal storage, 11.6GB is reserved for system files, only leaving around 20.4GB for you to use. This may not be enough for some people.

性能与基准

At the core of the Redmi 9 is a MediaTek Helio G80 chipset with a Mali-G52 MC2 GPU along with 3GB/4GB of RAM and 32GB/64GB of eMMC 5.1 storage. Unfortunately, the 6GB + 128GB variant is not officially available in the Philippines right now.

Either way, the level of performance provided by the Helio G80 is probably enough for most people to do their tasks, even heavy ones like high graphics gaming. 3-4GB of RAM is plenty enough for multitasking with a few apps, though the eMMC storage might be a bottleneck for storage-heavy tasks. Check out the benchmark scores we got below:

• AnTuTu v8 – 183,257
• Geekbench 5 – 363 (Single-core), 1,292 (Multi-core), 1,132 (RenderScript)
• PCMark – 8,757 (Work 2.0)
• 3DMark – 1,329 (OpenGL), 1,312 (Vulkan)
• AndroBench – 275.66 MB/s (Seq. Read), 115.86 MB/s (Seq. Write)

Connectivity and Battery Life

For connectivity features, the Redmi 9 comes with Dual-SIM, 4G LTE, Wi-Fi 802.11 b/g/n, Bluetooth 5.0, GPS, FM Radio, an IR blaster, and USB Type-C. The model being sold in our region doesn't seem to support NFC, though.

Checking out battery, we get a large 5,020mAh cell with support for 18W fast charging. This is a huge capacity that will allow users to use the device for up to two days if managed correctly.

In our standard video loop test (1080p movie on loop, 50% brightness, 0% volume, airplane mode on), the Redmi 9 got a total of 16 hours and 52 minutes of playback. This is not a bad score by any means, but we were kind of expecting 20+ hours.

Conclusion

With a starting price of PHP6,990, you're already getting a robust build, a 1080p display, solid performance, decent cameras, a big battery, and Xiaomi's nice software experience.

The Redmi 9 is a great addition to Xiaomi's lineup as it provides a fourth, honorary option to the Redmi Note 9 series. By providing users with all the basics they need for an essential but solid smartphone experience, it's almost a no-brainer for Xiaomi fans looking to spend not more than PHP7,490. However, I think that's exactly how much you should spend if you were getting a Redmi 9.

The 3GB + 32GB variant is decent, but the extra performance and storage you get from the 4GB + 64GB variant is definitely worth the additional PHP500. Don't forget that a huge chunk of storage is taken by system files as mentioned earlier. Also, an additional 1GB of RAM will help a little bit with overall performance.

Redmi 9 specs:
6.53-inch FHD+ (2340 x 1080) IPS display, 400N, 70% NTSC
Corning Gorilla Glass 3
MediaTek Helio G80 2.0GHz octa-core CPU
Mali-G52 MC2 GPU
3GB, 4GB LPDDR4X RAM
32GB, 64GB eMMC 5.1 storage
Up to 512GB via MicroSD card (dedicated slot)
Quad rear cameras: 13MP F2.2 (wide) + 8MP F2.2 (ultra-wide) + 5MP F2.4 (macro) + 2MP F2.4 (depth)
8MP F2.0 front camera
4G LTE
WiFi 802.11 n
Bluetooth 5.0
GPS, A-GPS, GLONASS, Beidou
NFC
IR Blaster
Rear-mounted fingerprint scanner
3.5mm audio jack
USB Type-C
5,020mAh battery w/ 18W fast charging support
163.32 x 77.01 x 9.1mm
198g
Carbon Grey, Sunset Purple, Ocean Green