Over the past year, I've used more than ten different mobile phones, and I've written about a series of devices. Some photos are still missing from Aunt Zhang's collection due to personal interests. I decided to summarize my experiences with mobile phones. The following recommendations are based on my personal usage (excluding iPhone X), and I hope they might be helpful for you.
Choosing a phone involves many factors—some people care about the brand, others focus on affordability, while some value the camera or prefer smaller screens. It's hard to say which one is the most worth buying, as it's subjective and depends on individual needs.
**Most Unrecommended: Huawei P10 / P10 Plus**
Every phone has its flaws, but some products truly feel like an insult to consumers' intelligence. I'm referring to the Huawei P10 and P10 Plus. While the P10 had decent photography and design, the P10 Plus suffered from poor battery life and misleading specifications. One major issue was that it mixed eMMC 5.1 with UFS 2.0, which was not transparent. At launch, Huawei claimed it supported UFS 2.0, which led to confusion among users. Additionally, the lack of an oleophobic coating on a 3000+ yuan phone was baffling. Even after purchase, applying the coating wasn't straightforward, which felt disrespectful to customers.
I consider this model the least recommended and also the last phone I bought.
**Not Recommended for Purchase**
Each phone has its own target audience, and whether it’s worth buying often depends on price. Some models become better buys after discounts, but this isn’t absolute. HTC, for example, is not within the scope of discussion here. After-sales support is minimal, making it unsuitable for the general public.
**OPPO and Vivo under 2000 RMB**
If you think OPPO and Vivo are low quality, you're not alone—but for basic use, they can be reliable. Their mainstream models are generally stable and smooth. However, below 2000 RMB, their performance drops significantly, and I wouldn’t recommend them.
**Meizu Pro7 / Pro7 Plus**
The Pro7 lacked a rear screen, struggled with photography, and used a MediaTek P25 chip. While the X30 was good for daily use, the Pro7 felt overpriced. If it dropped to around 1500 RMB, it might have been a better choice.
**Huawei Nova2 (Unused)**
This phone used a Kirin 659 processor, 4GB RAM + 64GB storage (eMMC), and sold for 2499 RMB. It felt similar in pricing to OPPO and Vivo, but the configuration didn’t match the price.
**Xiaomi Note3**
Compared to the Huawei Nova2, the Xiaomi Note3 had a few improvements, but it still wasn’t a great buy. It essentially took the Mi 6 and made it larger, cheaper, and less powerful. Bundling other products with the phone was particularly frustrating.
**Recommended: Redmi 5 Plus (Under 1000 RMB)**
If you’re not too concerned about the camera, the Redmi 5 Plus offers excellent value. It has a large battery, a great display, and fast charging. Though it uses a Snapdragon 625, it’s still a solid choice for budget buyers.
For those who care about photography, there are better options under 1000 RMB. The Redmi 6, for example, has a better camera than the Redmi 5 Plus in most cases. The Honor 7X is another good option, though it lacks 5G Wi-Fi.
**2000 RMB Range: Xiaomi 6 or Honor 9**
The Xiaomi 6 is well-built, has a good screen, and offers great value. However, the 64GB version is already out of stock. The Honor 9, while slightly weaker in performance, has a better camera and more attractive color options. Both are solid choices.
**3000 RMB Range: Vivo Xplay6 or OnePlus 5T**
The Vivo Xplay6 is a strong contender, featuring a top-tier OLED curved screen, excellent camera, and HiFi audio. It’s more affordable compared to other high-end models. I’m also looking forward to the Xplay7.
The OnePlus 5T was impressive, but I haven’t used it yet. Some reviews suggest it’s not as good as expected.
**4000 RMB Range: Huawei Mate 10**
The Huawei Mate 10 is highly recommended. Its camera is exceptional, especially for social media. The Kirin 970 chip includes NPU technology, which is a trend in AI processing. I admire the engineering behind it.
**5000 RMB Range: Samsung Galaxy S8**
The S8 has a stunning design and improved software experience. My only complaint is the placement of the fingerprint sensor, which feels awkward.
**6000 RMB+ Range: iPhone X**
At this price, it's a luxury item. I haven’t used it yet, and I find it overpriced for what it offers.
**Final Thoughts**
Phones are personal choices, and what works for one person may not work for another. Always consider your needs, budget, and long-term satisfaction before purchasing.
Uninterrupted Power Supply
Uninterrupted Power Supply (UPS), referred to as UPS, is a system equipment that contains energy storage device, rectifier and inverter as the main components, and provides constant voltage and constant frequency uninterruptible power supply for electrical equipment. The following is the description of UPS categories:
I. Basic overview
Definition: UPS is a power supply device that can provide continuous voltage and frequency stable AC output for electrical equipment in the case of a mains power outage. It connects the battery (mostly lead-acid maintenance-free battery) with the host, and converts the direct current into mains power through the module circuit such as the host inverter to realize the power supply to the load.
Application: UPS is widely used in communication, electricity, finance, petroleum, military, mining, aerospace, industry, hospital, computer business terminals, network servers, network equipment, data storage equipment, emergency lighting system, railway, shipping, transportation, power plants, substations, nuclear power plants, fire safety alarm system,
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