小米红米9C智能手机评论。大量的内存？是的!大量的电源？不是!
Possible competitors in comparison
rating | date | model | weight | drive | size | resolution | price from |
|---|---|---|---|---|---|---|---|
| 73.8 % v7 (old) | 02 / 2022 | Xiaomi Redmi 9C Helio G35, PowerVR GE8320 | 196 g | 128 GB eMMC Flash | 6.53" | 1600x720 | |
| 74.9 % v7 (old) | 12 / 2021 | Samsung Galaxy A12 Exynos SM-A127F Exynos 850, Mali-G52 MP1 | 205 g | 64 GB eMMC Flash | 6.50" | 1600x720 | |
| 78.4 % v7 (old) | 12 / 2021 | Xiaomi Redmi Note 8 2021 Helio G85, Mali-G52 MP2 | 190 g | 64 GB eMMC Flash | 6.30" | 2340x1080 | |
| 78.9 % v7 (old) | 01 / 2022 | Motorola Moto G31 Helio G85, Mali-G52 MP2 | 181 g | 64 GB eMMC Flash | 6.40" | 2400x1080 |
外壳和功能。大型手机，有大量内存
2021年中期，小米推出了红米9C--一款售价不到200欧元的手机，功能还算不错，但在当时类似价格的同事中并没有太突出。该制造商在2021年底发布了一个有更多存储空间的新版本，所以我们想再仔细看看这个设备。
红米9C仍然是一个相当大的智能手机，但其不到200克的重量是在限制范围内。外壳由简单的塑料制成，只是通过略带纹理的弧形线条图案来加强。可用的颜色是明亮的橙色、蓝色和微妙的深灰色。
2021年的机型现在包括128GB的大容量存储和4GB的内存，因此比许多同等价位的手机装备更好。红米9C以前的变种只向用户提供64GB/3GB或32GB/2GB的选择。然而，由于旧型号的价格已经下降，存储变体之间的价格差距相当大，特别是对于低于200欧元的手机。廉价的32GB机型仅售不到120欧元，而配备128GB存储空间的新红米9C则要190欧元。
最大的存储版本也有一个专用的SD读卡器，以领先的速度令人信服。然而，没有NFC，过时的microUSB端口也可能会让一些买家感到厌烦。
| SD Card Reader - average JPG Copy Test (av. of 3 runs) | |
| Samsung Galaxy A12 Exynos SM-A127F (Angelbird V60) | |
| Average of class Smartphone (7.7 - 77, n=79, last 2 years) | |
| Xiaomi Redmi 9C (Angelbird V60) | |
| Motorola Moto G31 (Angelbird V60) | |
| Xiaomi Redmi Note 8 2021 (Toshiba Exceria Pro) | |
Cross Platform Disk Test (CPDT)
通信，软件和，操作。蹩脚的Wi-Fi
目前，红米9C的街头售价为190欧元，128GB存储空间的红米9C在同类产品中处于领先水平。 摩托罗拉Moto G31或内部的Redmi Note 8 2021但在网速方面却无法跟上它们。这两款对比设备都具有Wi-Fi 5，因此上网速度要快得多。对于Wi-Fi 4智能手机来说，红米9C实现的标准数据速率约为50Mbps。
MIUI 12是基于Android 10，所以不应该期待进一步的功能更新。至少安全补丁是2021年12月的，因此在测试时是相对最新的。
背面有一个物理指纹传感器，在明显的延迟后解锁智能手机。指纹识别是相当准确的，在我们的测试中，10个案例中有9个成功。触摸屏很容易使用，并为手指提供良好的滑动性能。
| Networking | |
| iperf3 transmit AX12 | |
| Xiaomi Redmi Note 8 2021 | |
| Motorola Moto G31 | |
| Xiaomi Redmi 9C | |
| Samsung Galaxy A12 Exynos SM-A127F | |
| iperf3 receive AX12 | |
| Motorola Moto G31 | |
| Xiaomi Redmi Note 8 2021 | |
| Samsung Galaxy A12 Exynos SM-A127F | |
| Xiaomi Redmi 9C | |
照相机 - 对于这个价格来说，图像质量不错
除了1300万像素的主摄像头外，背面还有另外两个，但分辨率很低的摄像头--一个微距摄像头和一个支持人像模糊效果的摄像头。
主摄像头拍摄的照片动态范围较低，但清晰度还不错。当然，在细节表现方面，它不能跟上真正好的手机摄像头，但就其价格范围而言，它做得相当不错。然而，在实验室里光线很暗的情况下，照片中看不到任何细节。
视频可以以最高1080p和30帧的速度录制，而自动对焦偶尔会反应得有点慢。否则，质量是可以接受的。
前置摄像头只有500万像素，在光线良好的情况下可以进行体面的自拍。然而，这里的动态范围也不是很大，所以黑暗区域很快就变成了平坦的黑色。这在我们的测试图片中的头发上可以很好地看到。
Image Comparison
Choose a scene and navigate within the first image. One click changes the position on touchscreens. One click on the zoomed-in image opens the original in a new window. The first image shows the scaled photograph of the test device.
Hauptkamera PflanzeHauptkamera UmgebungHauptkamera Low Light
显示。分辨率低，亮度好
像红米9C这样的720p显示屏，在200欧元以下没有什么不寻常的。虽然如此，像 Redmi Note 8 2021或 摩托罗拉Moto G31显示，1080p屏幕也是可能的，Moto甚至有一个高质量的OLED屏幕。
在亮度方面，我们评测样本中的面板可以跟上这个价格范围内的其他智能手机。黑值也相当高，这对对比度有负面影响，从而影响了颜色的亮度。
色彩再现相当真实，但无法与Moto G31的OLED竞争。 Moto G31.
| |||||||||||||||||||||||||
Brightness Distribution: 83 %
Center on Battery: 467 cd/m²
Contrast: 881:1 (Black: 0.53 cd/m²)
ΔE Color 4.14 | 0.5-29.43 Ø4.91
ΔE Greyscale 6 | 0.5-98 Ø5.2
92.9% sRGB (Calman 2D)
Gamma: 2.291
| Xiaomi Redmi 9C IPS, 1600x720, 6.5" | Samsung Galaxy A12 Exynos SM-A127F IPS LCD, 1600x720, 6.5" | Xiaomi Redmi Note 8 2021 IPS LCD, 2340x1080, 6.3" | Motorola Moto G31 OLED, 2400x1080, 6.4" | |
|---|---|---|---|---|
| Response Times | -32% | -22% | 24% | |
| Response Time Grey 50% / Grey 80% * | 60 ? | 58 ? 3% | 52 ? 13% | 6 ? 90% |
| Response Time Black / White * | 34 ? | 34 ? -0% | 28 ? 18% | 6 ? 82% |
| PWM Frequency | 17120 | 178.6 ? -99% | 352.1 ? -98% | 223.2 -99% |
| Screen | 14% | 31% | 28% | |
| Brightness middle | 467 | 446 -4% | 496 6% | 423 -9% |
| Brightness | 417 | 423 1% | 491 18% | 425 2% |
| Brightness Distribution | 83 | 88 6% | 91 10% | 94 13% |
| Black Level * | 0.53 | 0.29 45% | 0.19 64% | |
| Contrast | 881 | 1538 75% | 2611 196% | |
| Colorchecker dE 2000 * | 4.14 | 4.94 -19% | 5.5 -33% | 1.58 62% |
| Colorchecker dE 2000 max. * | 8.49 | 8.81 -4% | 8.88 -5% | 4.68 45% |
| Greyscale dE 2000 * | 6 | 5.1 15% | 6.6 -10% | 2.7 55% |
| Gamma | 2.291 96% | 2.145 103% | 2.36 93% | 2.219 99% |
| CCT | 7536 86% | 7890 82% | 8432 77% | 6674 97% |
| Total Average (Program / Settings) | -9% /
2% | 5% /
16% | 26% /
27% |
* ... smaller is better
Display Response Times
| ↔ Response Time Black to White | ||
|---|---|---|
| 34 ms ... rise ↗ and fall ↘ combined | ↗ 17 ms rise |  |
| ↘ 17 ms fall | ||
| The screen shows slow response rates in our tests and will be unsatisfactory for gamers. In comparison, all tested devices range from 0.1 (minimum) to 240 (maximum) ms. » 90 % of all devices are better. This means that the measured response time is worse than the average of all tested devices (20.9 ms). | ||
| ↔ Response Time 50% Grey to 80% Grey | ||
| 60 ms ... rise ↗ and fall ↘ combined | ↗ 27 ms rise |  |
| ↘ 33 ms fall | ||
| The screen shows slow response rates in our tests and will be unsatisfactory for gamers. In comparison, all tested devices range from 0.165 (minimum) to 636 (maximum) ms. » 95 % of all devices are better. This means that the measured response time is worse than the average of all tested devices (32.8 ms). | ||
Screen Flickering / PWM (Pulse-Width Modulation)
| Screen flickering / PWM detected | 17120 Hz |  | |
The display backlight flickers at 17120 Hz (worst case, e.g., utilizing PWM) . The frequency of 17120 Hz is quite high, so most users sensitive to PWM should not notice any flickering. In comparison: 53 % of all tested devices do not use PWM to dim the display. If PWM was detected, an average of 8705 (minimum: 5 - maximum: 343500) Hz was measured. | |||
性能，排放，和电池寿命。红米9C动力不足
该 联发科Helio G35负责红米9C的性能。8个核心可以以2.3GHz的最高时钟工作。该SoC无法跟上对比设备的步伐。性能差异是巨大的，在某些情况下超过100%。
在我们的测试中也可以看出，你必须用很少的电量来做事情--只有在运行一个比较复杂的应用程序时，屏幕才能旋转，而且有时调用音量控制也会延迟。
eMMC闪存很大，但速度不快。然而，对比设备也没有提供更快的存储模块。
即使在较长的负载下也不会出现过度发热；温度始终保持在40℃以下。
底部边缘的小型单声道扬声器不会变得很响，听起来相当平庸。如果你想要更好的声音，你可以通过3.5毫米插孔或蓝牙连接耳机或扬声器。
5,000毫安时的电池提供了超过15小时的体面运行时间，但由于最大充电功率只有10瓦，所以需要很长的时间来充电。
| Xiaomi Redmi 9C | Samsung Galaxy A12 Exynos SM-A127F | Xiaomi Redmi Note 8 2021 | Motorola Moto G31 | Average 128 GB eMMC Flash | Average of class Smartphone | |
|---|---|---|---|---|---|---|
| AndroBench 3-5 | 3% | 39% | 64% | 23% | 578% | |
| Sequential Read 256KB | 263.1 | 302.3 15% | 309.4 18% | 309.8 18% | 284 ? 8% | 1882 ? 615% |
| Sequential Write 256KB | 208.4 | 74.5 -64% | 159.7 -23% | 221.5 6% | 194.6 ? -7% | 1467 ? 604% |
| Random Read 4KB | 54.5 | 77.8 43% | 73.6 35% | 84 54% | 82.7 ? 52% | 278 ? 410% |
| Random Write 4KB | 39.7 | 47.21 19% | 88.9 124% | 109.8 177% | 55.4 ? 40% | 310 ? 681% |
温度
(+) The maximum temperature on the upper side is 39.3 °C / 103 F, compared to the average of 35.1 °C / 95 F, ranging from 21.9 to 63.7 °C for the class Smartphone.
(+) The bottom heats up to a maximum of 39.2 °C / 103 F, compared to the average of 33.9 °C / 93 F
(+) In idle usage, the average temperature for the upper side is 27.7 °C / 82 F, compared to the device average of 32.8 °C / 91 F.
扬声器
Xiaomi Redmi 9C audio analysis
(±) | speaker loudness is average but good (77.7 dB)
Bass 100 - 315 Hz
(-) | nearly no bass - on average 33.1% lower than median
(±) | linearity of bass is average (12.4% delta to prev. frequency)
Mids 400 - 2000 Hz
(+) | balanced mids - only 4.4% away from median
(+) | mids are linear (5.3% delta to prev. frequency)
Highs 2 - 16 kHz
(±) | higher highs - on average 5.5% higher than median
(+) | highs are linear (2.5% delta to prev. frequency)
Overall 100 - 16.000 Hz
(±) | linearity of overall sound is average (25.3% difference to median)
Compared to same class
» 59% of all tested devices in this class were better, 7% similar, 34% worse
» The best had a delta of 12%, average was 37%, worst was 134%
Compared to all devices tested
» 75% of all tested devices were better, 5% similar, 20% worse
» The best had a delta of 4%, average was 25%, worst was 134%
Xiaomi Redmi Note 8 2021 audio analysis
(+) | speakers can play relatively loud (86.9 dB)
Bass 100 - 315 Hz
(-) | nearly no bass - on average 28.9% lower than median
(±) | linearity of bass is average (9.4% delta to prev. frequency)
Mids 400 - 2000 Hz
(+) | balanced mids - only 3.9% away from median
(+) | mids are linear (4.9% delta to prev. frequency)
Highs 2 - 16 kHz
(±) | higher highs - on average 5.6% higher than median
(+) | highs are linear (6.8% delta to prev. frequency)
Overall 100 - 16.000 Hz
(±) | linearity of overall sound is average (21.8% difference to median)
Compared to same class
» 40% of all tested devices in this class were better, 8% similar, 52% worse
» The best had a delta of 12%, average was 37%, worst was 134%
Compared to all devices tested
» 59% of all tested devices were better, 7% similar, 34% worse
» The best had a delta of 4%, average was 25%, worst was 134%
电池寿命
| Xiaomi Redmi 9C 5000 mAh | Samsung Galaxy A12 Exynos SM-A127F 5000 mAh | Xiaomi Redmi Note 8 2021 4000 mAh | Motorola Moto G31 5000 mAh | Average of class Smartphone | |
|---|---|---|---|---|---|
| Battery Runtime | |||||
| WiFi Websurfing | 905 | 879 -3% | 748 -17% | 1032 14% | 991 ? 10% |
Pros
Cons
结论 - 太贵了，即使有大内存也不行
新的存储变量无疑使小米红米9C更具时代感。特别是内存增加到4GB在这里是个福音。它可以防止你因为工作内存不足而根本无法运行更复杂的应用程序。另外，对于200欧元以下的智能手机来说，128GB的大容量存储是一个很好的功能。
然而，较新的红米9C只是表明它的其他部件在推出时已经有18个月的历史。特别是处理器在速度上跟不上同价位的手机，Wi-Fi 4在200欧元（约200美元）以下的设备中也变得越来越少。红米9C没有NFC，在这个价格范围内肯定有更高的分辨率屏幕。
小米红米9C现在提供了大量的存储空间，但由于处理器速度较慢，以制造商的价格来说简直太贵了。
小米红米9C看起来还没有落伍到无可救药的地步，但它还是有点太贵了，而且速度太慢，在快速发展的智能手机领域无法成为真正意义上的性价比之作。
红米9C仍然可以推荐给那些希望以尽可能低的价格在智能手机中获得最大存储空间，并且只使用简单应用程序的人。如果价格在未来几个月内大幅下降，该设备可能会变得更加有趣。
该 Redmi Note 8 2021来自同一制造商，提供更多的性能，更快的互联网，以及更高分辨率的屏幕。该摩托车G31甚至有一个OLED屏幕。
价格和可用性
Xiaomi Redmi 9C
- 01/27/2022 v7 (old)
Florian Schmitt
Price comparison
