This week in the tech world, there are three major events: Apple's iPhone 15 launch, Arm's IPO, and Google's "Great Trial".

Get ready for this week's tech extravaganza, as these 3 things could change everything.

At 01:00 on September 13th, Beijing time, Apple will unveil an updated version of the iPhone. On Tuesday, the US Department of Justice will finally make a ruling on the three-year-long antitrust case against Google. And on Thursday, UK chip design company Arm Holdings may officially go public.

Apple iPhone 15

Apple is holding its annual fall product launch event, which is being called "Wonderlust".

The highlight of the event will be the debut of the iPhone 15, and analysts also expect Apple to release a new Apple Watch and possibly upgrade the AirPods.

No one expects major changes to the iPhone—the most significant change could be Apple's shift to the more widely used USB-C standard. It will feature updated processors, improved cameras, thinner bezels, and some other adjustments.

The price is expected to be higher than that of the iPhone 14. Optimistic iPhone enthusiasts anticipate that the replacement of old phones will boost iPhone sales.

Wedbush analyst Dan Ives estimates that a quarter of the 1.2 billion iPhone users have been using their phones for at least four years.

Morgan Stanley analyst Erik Woodring believes that the 6% drop in Apple's stock price due to concerns about China is somewhat exaggerated. However, he points out that the market's concerns are not only about the fate of the iPhone 15.

Woodring states that given Apple's significant role in China, such a dire outcome is unlikely. The release of the iPhone 15 won't solve any problems, but people will closely monitor early sales figures.

Arm IPO

In 2016, SoftBank acquired chip design company Arm Holdings for $32 billion.

In 2021, SoftBank agreed to sell Arm to Nvidia for $40 billion in cash and stock, but the deal fell apart under regulatory scrutiny.

SoftBank then began planning for an IPO. In the past week, Arm set a price range of $47 to $52 per share for the pending transaction, which implies a valuation of around $50 billion.

This IPO is expected to be priced on Wednesday evening, and Arm will begin trading on Nasdaq on Thursday.

SoftBank has high expectations for the valuation. Arm's revenue last year was $2.7 billion, which is in line with the previous year. The top end of the price range implies a valuation of nearly 20 times its past revenue, almost higher than any other tech company. Arm is pursuing a valuation comparable to that of Nvidia, but lacks growth.

There is no doubt that Arm is an important player in the global chip market - almost all smartphones use chips designed by Arm.

But the bigger risk is that a poor IPO performance could deter other tech companies from going public this year.

Google's "Big Trial"

Three years ago, the US Department of Justice sued Google, alleging that Alphabet had an illegal monopoly in the internet search market.

The case is set to go to trial on Tuesday in a federal court in Washington, D.C.

In its 2020 complaint, the US government stated that Google used "anticompetitive tactics" to maintain and expand its near-monopoly position in internet search and search advertising. Google has called the lawsuit "seriously flawed."

One key issue in this trial may be Google's long-standing role as the search service provider for Apple's iPhone and its Safari browser.

Any attempt to untangle the connection between the two could potentially benefit Microsoft and its Bing search engine.

Another possibility is that the court could order an end to the exclusive relationship between Apple and Google, prompting Apple to develop its own search engine. That would be another big development.