According to studies by foreign research institutions, the highest failure rate in apples was in iphone 6, followed by iphone 6s, which reached 22 per cent and 16 per cent, respectively. This is a very scary number, which means that more than one fifth of the iphone 6 has had a malfunction. This is understandable, however, because iphone 6 is the first iphone phone that uses a 4. 7-inch screen, and many designs and processes were completely new at the time and prone to problems. As a result, iphone 6 plus and iphone 6s plus are also more vulnerable to malfunctions。

And in the iphone 6s generation, apples use a new type of metal material that makes their fuselage stronger, but the coating of this metal is susceptible to oxidation in a given environment, making the backseat look like corrosive, with the surface turning into a pit plume. Although apples do not consider this to be a quality problem, it also leads to poor quality evaluation of the iphone 6s series by many users。

The lowest rate of failure was found in iphone 8 plus, only 3 per cent. This is also true because, in the iphone 8 generation, apples have not changed the shape of the product for four years in a row, the design and process of the product has been largely matured, the quality of the supply chain has stabilized, and even workers in generation factories such as fuscon have become skilled workers, and the failure rate is naturally lower。
Although the iphone 8 series no longer uses metal body but instead uses glass backcaps, apples have already used glass backcaps on iphone 4 and 5, so they have experience in this area, so the iphone 8 series of glass body mass is still very reliable, and there are virtually no major problems without falling and bumping。

In addition, apples added waterproof designs to the iphone 7 generation, removed the easily damaged machine home key and replaced it with a non-pressurized home key, and removed 3. 5 mm earholes, thereby achieving high-standard ip67 waterproofness. In terms of daily use, access to water is often the main cause of cell phone damage, and when iphone becomes waterproof, the failure rate naturally decreases significantly. In the iphone 11 generation, the water-proofing level went up to ip68. However, the iphone xs and iphone 11 generations were too close to release to determine whether quality was good。
The iphone 7 series had a higher failure rate than the iphone 8 series, mainly because the iphone 7 encountered a “keyband door”. Owing to the fact that apples have cut wires in base belt design, iphone 7 and iphone 7 plus, which are part of the batch, will lose network signals after upgrading the system and cannot be addressed through system restoration, and must be returned for repair. This problem has led to a significant increase in the failure rate of the iphone 7 series. Indeed, the iphone 7 series, which has waterproof and metal body parts, is more durable from the point of view of its useful life if there is no base door。

It is worth mentioning that the failure rate of iphone x, like that of iphone 8 plus, is only 3 per cent, which is somewhat surprising because iphone x and iphone 6 are completely new products that have changed their appearance. The iphone x is of good quality, presumably due to the price of the sale. The initial price of iphone x is more than rmb 8,000, and it is the first time that the initial price of an apple phone is sold at this price, which naturally gives it better product quality。
In general, smartphones are electronic products, so there is always a risk of failure, the key being whether the failure can be repaired and the maintenance costs that users need to bear. In fact, apple phones are sold globally, so buying them is basically without concern for quality, because they can be repaired or even replaced after they are sold as long as they are artificially caused. For example, the iphone 7-matrix failure referred to above is largely free of charge。

Of course, extra maintenance of apple phones is very expensive, with 2599 dollars for iphone 11 pro max and 4659 dollars for the back of the screen. If both the screen and the backcap are not carefully broken, the maintenance costs and the new machine are not much different. So apple users who don't normally like membranes and cell phone shells better buy the official applecare+ service, which can be repaired at lower prices even for human-induced failures. The maintenance chain for apple phones is also the most complete, and third-party repair shops may be available if they are found to be too expensive after the official sale, although unofficial parts may not be as good, but they are much cheaper。




