联想 Tab K9 的评价
联想 Tab K9 是一款入门级Android 平板电脑，所以你应该控制好自己的期望值。联想为它配备了一个充电器，而且基本上没有第三方软件。售价在 120 欧元到 150 欧元之间的产品还提供卫星定位、模拟音频接口和可选的 LTE 模块，进一步提高了移动性。
更新只能持续到 2027 年年中，Android 16 不再是计划中的更新。当然，它仍有可能出现，但没有任何承诺。
Helio G85 已经不再真正面向未来，而且已经只能进行生涩的操作。这款平板电脑足以胜任简单的任务，但你不应该对它抱有更高的期望。
电池续航时间适合日常使用，但总体低于平均水平，内存有限且速度相当慢。
屏幕分辨率低也是一个弱点，但对于一款售价不到 200 欧元的平板电脑来说，你可能不得不接受这个缺点。
如果你只是想买一台价格便宜的平板电脑来完成简单的任务，联想 Tab K9 可以为你提供很多物有所值的功能。
Pros
Cons
价格和供应情况
规格
制造和设备：回收底盘
联想 Tab K9 采用商务兼容的灰色。由于联想使用了 35% 的可回收材料，所以机身上出现了不同颜色塑料的小斑点。再加上背面的圆形图案，形成了一种有趣的外观，让人联想到水磨石地板。
平板电脑的手感很好，用力扭动时会有一点变形，但总体来说，它的表面处理得很干净，而且很稳定。
此外，Tab K9 体积小巧，即使是儿童或手较小的人也能轻松使用。
我们的测试设备配备了 3.5 毫米音频插孔、卫星定位和 microSD 端口，这在同价位产品中是非常不错的。
microSD 插槽还能快速读写我们的 Angelbird V60 参考卡。
| SD Card Reader - average JPG Copy Test (av. of 3 runs) | |
| Lenovo Tab One (Angelbird V60) | |
| Lenovo Tab K9 (Angelbird V60) | |
| Average of class Tablet (10.2 - 57.4, n=48, last 2 years) | |
| Xiaomi Redmi Pad SE 8.7 inches (Angelbird V60) | |
跨平台磁盘测试 (CPDT)
通信和操作：带有 LTE 和卫星定位功能的 Tab K9
你只能使用最高仅为 370 MBit/s 的 Wi-Fi 数据传输速率--只有在中端平板电脑中才能看到更快的吞吐量。
我们的测试设备还配备了蜂窝模块，支持重要蜂窝频率的 LTE，因此平板电脑在旅行时也可用于移动互联网。不过，在我们测试过程中的抽查中，接收信号时不时有些不稳定。
联想 Tab K9 没有指纹传感器，只能通过前置摄像头进行 2D 面部识别。这虽然工作可靠，但并不完全安全，所以最好不要在平板电脑上保存敏感的公司数据。
触摸屏工作可靠，但在最大刷新率为 60 Hz 时有些迟缓。处理器似乎经常超载，这可能会导致打字时出现抖动和卡顿。
| Networking | |
| Lenovo Tab K9 | |
| iperf3 transmit AXE11000 | |
| iperf3 receive AXE11000 | |
| Lenovo Tab One | |
| iperf3 transmit AXE11000 | |
| iperf3 receive AXE11000 | |
| Xiaomi Redmi Pad SE 8.7 inches | |
| iperf3 transmit AXE11000 | |
| iperf3 receive AXE11000 | |
| Xiaomi Redmi K Pad | |
| iperf3 transmit AXE11000 | |
| iperf3 receive AXE11000 | |
| Average 802.11 a/b/g/n/ac | |
| iperf3 transmit AXE11000 | |
| iperf3 receive AXE11000 | |
| Average of class Tablet | |
| iperf3 transmit AXE11000 | |
| iperf3 receive AXE11000 | |
软件和可持续性：几乎没有更新
Android 我们的测试设备预装了 15 个应用程序。联想 Tab K9 的软件非常简洁，几乎没有第三方应用程序。更新将持续到 2027 年年中；不再计划推出新的Android 版本。
背面使用回收塑料是件好事。包装也是无塑料的，但我们的设备完全是用塑料薄膜收缩包装的。
这种情况也可能发生在进口商或零售商身上，但从可持续发展的角度来看，这无疑是令人讨厌的。
摄像头自拍分辨率低，图像缺乏细节
联想 Tab K9 的前置摄像头分辨率仅为 200 万像素，因此只能用于紧急情况下的自拍。质量还有待提高。
该摄像头可用于视频通话，但成像质量不会很高。
背面的主摄像头分辨率为 800 万像素，自动对焦偶尔会有点慢。
照片的细节不多，亮部或暗部的动态范围也一般。不过，该摄像头足以扫描二维码或条形码。
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
显示屏像素密度低，但无 PWM
Tab K9 的 8.7 英寸显示屏像素密度相当低，因此图像看起来往往有些模糊。这款平板电脑在室外的最大亮度约为 400 cd/m²，对于 HDR 内容，你不应该期望它有很高的亮度。
不过，就其价格范围而言，该显示屏还是可以的。它能提供相当准确的色彩还原，而且不会出现 PWM 闪烁。
| |||||||||||||||||||||||||
Brightness Distribution: 87 %
Center on Battery: 410 cd/m²
Contrast: 1414:1 (Black: 0.29 cd/m²)
| Lenovo Tab K9 IPS, 1340x800, 8.7" | Lenovo Tab One TFT LCD (IPS), 1340x800, 8.7" | Xiaomi Redmi Pad SE 8.7 inches IPS, 1340x800, 8.7" | Xiaomi Redmi K Pad LCD, 3008x1880, 8.8" | |
|---|---|---|---|---|
| Screen | 7% | 4% | 22% | |
| Brightness middle (cd/m²) | 410 | 407 -1% | 499 22% | 743 81% |
| Brightness (cd/m²) | 380 | 379 0% | 479 26% | 721 90% |
| Brightness Distribution (%) | 87 | 88 1% | 90 3% | 94 8% |
| Black Level * (cd/m²) | 0.29 | 0.24 17% | 0.37 -28% | 0.5 -72% |
| Contrast (:1) | 1414 | 1696 20% | 1349 -5% | 1486 5% |
| Colorchecker dE 2000 * | 2.36 | 3.68 | 1.61 | |
| Colorchecker dE 2000 max. * | 7.77 | 6.82 | 3.82 | |
| Greyscale dE 2000 * | 2.4 | 1.9 | 2.9 | |
| Gamma | 1.988 111% | 2.184 101% | 2.232 99% | |
| CCT | 6876 95% | 6787 96% | 6864 95% |
* ... smaller is better
| Display / APL18 Peak Brightness | |
| Lenovo Tab K9 | |
| Display / HDR Peak Brightness | |
| Lenovo Tab K9 | |
Screen Flickering / PWM (Pulse-Width Modulation)
| Screen flickering / PWM not detected |  | ||
In comparison: 53 % of all tested devices do not use PWM to dim the display. If PWM was detected, an average of 8002 (minimum: 5 - maximum: 343500) Hz was measured. | |||
Display Response Times
| ↔ Response Time Black to White | ||
|---|---|---|
| 32.6 ms ... rise ↗ and fall ↘ combined | ↗ 14.6 ms rise |  |
| ↘ 18 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. » 88 % of all devices are better. This means that the measured response time is worse than the average of all tested devices (20.1 ms). | ||
| ↔ Response Time 50% Grey to 80% Grey | ||
| 45.2 ms ... rise ↗ and fall ↘ combined | ↗ 24.2 ms rise |  |
| ↘ 21 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. » 77 % of all devices are better. This means that the measured response time is worse than the average of all tested devices (31.4 ms). | ||
性能、排放和电池寿命相当悠闲的平板电脑
系统芯片 联发科 Helio G85这颗 SoC 是联发科 Helio G85 芯片，于六年前推出，因此已经跟不上时代的步伐，尤其是它当时只针对中端市场。这就意味着你不得不忍受极低的性能，在日常使用中可能不得不忍受偶尔的卡顿。eMMC 存储速度也相当慢。
即使在长时间负载的情况下，我们也没有测到外壳有任何强烈的发热现象。在 3DMark 压力测试中，这款平板电脑也没有出现明显的节流现象。
联想 Tab K9 有两个完整的扬声器，因此可以产生立体声。音效尚可，但由于缺乏低音，并不十分饱满。
您可以通过 3.5 毫米插孔或蓝牙 5.3 连接外置扬声器或耳机，并有多种音频编解码器可供选择。
在无线局域网测试中，我们测得的电池续航时间略高于 14 小时。由于电池容量仅为 5100 毫安时，因此续航时间尚可。
其他平板电脑，即使是这个价位的产品，有时也会提供更长的续航时间。使用附带的电源适配器充电只需不到 2 小时。
| Jetstream 2 - 2.0 Total Score | |
| Average of class Tablet (35.8 - 395, n=68, last 2 years) | |
| Lenovo Tab K9 | |
| Xiaomi Redmi Pad SE 8.7 inches | |
| Average Mediatek Helio G85 (29.2 - 61.3, n=9) | |
| Lenovo Tab K9 | Lenovo Tab One | Xiaomi Redmi Pad SE 8.7 inches | Xiaomi Redmi K Pad | Average 64 GB eMMC Flash | Average of class Tablet | |
|---|---|---|---|---|---|---|
| AndroBench 3-5 | -2% | -8% | 454% | -33% | 363% | |
| Sequential Read 256KB (MB/s) | 302.3 | 298.43 -1% | 289 -4% | 3448.34 1041% | 278 ? -8% | 1905 ? 530% |
| Sequential Write 256KB (MB/s) | 207.2 | 199.25 -4% | 263.6 27% | 1494.45 621% | 178.6 ? -14% | 1447 ? 598% |
| Random Read 4KB (MB/s) | 100.1 | 98.38 -2% | 71.1 -29% | 309.61 209% | 60.9 ? -39% | 256 ? 156% |
| Random Write 4KB (MB/s) | 110.5 | 108.67 -2% | 82.7 -25% | 49.93 -55% | 34.2 ? -69% | 297 ? 169% |
(±) The maximum temperature on the upper side is 44.2 °C / 112 F, compared to the average of 33.6 °C / 92 F, ranging from 20.7 to 53.2 °C for the class Tablet.
(±) The bottom heats up to a maximum of 42.1 °C / 108 F, compared to the average of 33.2 °C / 92 F
(+) In idle usage, the average temperature for the upper side is 26.9 °C / 80 F, compared to the device average of 30 °C / 86 F.
3DMark 压力测试
| 3DMark | |
| Wild Life Stress Test Stability | |
| Lenovo Tab One | |
| Xiaomi Redmi Pad SE 8.7 inches | |
| Lenovo Tab K9 | |
| Xiaomi Redmi K Pad | |
| Wild Life Extreme Stress Test | |
| Xiaomi Redmi K Pad | |
| Xiaomi Redmi Pad SE 8.7 inches | |
| Lenovo Tab One | |
| Lenovo Tab K9 | |
| Solar Bay Stress Test Stability | |
| Xiaomi Redmi K Pad | |
| Steel Nomad Light Stress Test Stability | |
| Xiaomi Redmi K Pad | |
Lenovo Tab K9 audio analysis
(±) | speaker loudness is average but good (81.5 dB)
Bass 100 - 315 Hz
(-) | nearly no bass - on average 22.3% lower than median
(±) | linearity of bass is average (14.3% delta to prev. frequency)
Mids 400 - 2000 Hz
(±) | higher mids - on average 5.9% higher than median
(±) | linearity of mids is average (7.7% delta to prev. frequency)
Highs 2 - 16 kHz
(±) | higher highs - on average 7.1% higher than median
(±) | linearity of highs is average (10.3% delta to prev. frequency)
Overall 100 - 16.000 Hz
(±) | linearity of overall sound is average (26.8% difference to median)
Compared to same class
» 83% of all tested devices in this class were better, 4% similar, 13% worse
» The best had a delta of 7%, average was 20%, worst was 129%
Compared to all devices tested
» 82% of all tested devices were better, 4% similar, 14% worse
» The best had a delta of 4%, average was 24%, worst was 134%
Xiaomi Redmi K Pad audio analysis
(+) | speakers can play relatively loud (84.6 dB)
Bass 100 - 315 Hz
(±) | reduced bass - on average 13.8% lower than median
(±) | linearity of bass is average (12.6% delta to prev. frequency)
Mids 400 - 2000 Hz
(±) | higher mids - on average 5.2% higher than median
(+) | mids are linear (4.9% delta to prev. frequency)
Highs 2 - 16 kHz
(+) | balanced highs - only 2.6% away from median
(+) | highs are linear (3.3% delta to prev. frequency)
Overall 100 - 16.000 Hz
(+) | overall sound is linear (13.5% difference to median)
Compared to same class
» 26% of all tested devices in this class were better, 4% similar, 70% worse
» The best had a delta of 7%, average was 20%, worst was 129%
Compared to all devices tested
» 14% of all tested devices were better, 4% similar, 83% worse
» The best had a delta of 4%, average was 24%, worst was 134%
| Lenovo Tab K9 5100 mAh | Lenovo Tab One 5100 mAh | Xiaomi Redmi Pad SE 8.7 inches 6650 mAh | Xiaomi Redmi K Pad 7500 mAh | |
|---|---|---|---|---|
| Battery runtime | 3% | 20% | 42% | |
| Reader / Idle (h) | 34.2 | 37.6 10% | 37.3 9% | |
| WiFi v1.3 (h) | 14.1 | 13.9 -1% | 20.4 45% | 20 42% |
| Load (h) | 4.7 | 4.7 0% | 5 6% | |
| H.264 (h) | 16.3 | 21.1 |
Notebookcheck 对联想 Tab K9 的总体印象
联想 Tab K9 是一款可靠的入门级平板电脑，在其价格范围内具有一些特殊功能，包括 LTE、卫星定位和电源适配器。
不过，联想 Tab One 提供了几乎相同的体验和功能设置，尤其是如果你能以更低的价格买到它的话。
Lenovo Tab K9
- 02/25/2026 v8
Florian Schmitt
Total Sustainability Score: 潜在替代品比较
Image | Model / Review | Price | Weight | Drive | Display |
|---|---|---|---|---|---|
1. 76.7%  | Lenovo Tab K9 Mediatek Helio G85 ⎘ ARM Mali-G52 MP2 ⎘ 4 GB Memory, 64 GB eMMC | Amazon: List Price: 150€ | 320 g | 64 GB eMMC Flash | 8.70" 1340x800 179 PPI IPS |
2. 77.4%  | Lenovo Tab One Mediatek Helio G85 ⎘ ARM Mali-G52 MP2 ⎘ 4 GB Memory, 64 GB eMMC | Amazon: List Price: 100€ | 320 g | 64 GB eMMC Flash | 8.70" 1340x800 179 PPI TFT LCD (IPS) |
3. 76.8%  | Xiaomi Redmi Pad SE 8.7 inches Mediatek Helio G85 ⎘ ARM Mali-G52 MP2 ⎘ 4 GB Memory, 64 GB eMMC | List Price: 150€ | 373 g | 64 GB eMMC Flash | 8.70" 1340x800 179 PPI IPS |
4. 90.2%  | Xiaomi Redmi K Pad Mediatek Dimensity 9400+ ⎘ ARM Immortalis-G925 MC12 ⎘ 16 GB Memory, 512 GB | Amazon: 1. $199.99 Xiaomi Redmi Pad 2 Only WiFi... 2. $259.50 XIAOMI Redmi Pad 2 PRO Only ... 3. $319.50 XIAOMI Redmi Pad 2 PRO Only ... List Price: 330€ | 326 g | 512 GB UFS 4.0 Flash | 8.80" 3008x1880 403 PPI LCD |
Transparency
The selection of devices to be reviewed is made by our editorial team. The test sample was freely purchased by the author at his/her own expense. The lender had no influence on this review, nor did the manufacturer receive a copy of this review before publication. There was no obligation to publish this review. As an independent media company, Notebookcheck is not subjected to the authority of manufacturers, retailers or publishers.
This is how Notebookcheck is testing
Every year, Notebookcheck independently reviews hundreds of laptops and smartphones using standardized procedures to ensure that all results are comparable. We have continuously developed our test methods for around 20 years and set industry standards in the process. In our test labs, high-quality measuring equipment is utilized by experienced technicians and editors. These tests involve a multi-stage validation process. Our complex rating system is based on hundreds of well-founded measurements and benchmarks, which maintains objectivity. Further information on our test methods can be found here.
