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iPhone 17: Important development step completed

Milan Jovicic by Milan Jovicic
April 28, 2025 - 7:03 PM CEST
in Apple Rumors
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iPhone 17 Apple

Image: Shutterstock / Thaspol Sangsee

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If you're interested in new iPhones, there's exciting news. Apple has taken an important step in the development of the iPhone 17. The company has completed the so-called technical validation tests (EVT) for at least one of the new models. Here's what exactly this means and what impact it will have on the coming months.

The iPhone 17 is highly anticipated. Every year, Apple follows a fairly strict schedule for developing new devices. A key milestone in this process is the completion of the EVT phase. This phase verifies whether the hardware of a prototype functions as planned. The fact that this milestone has now been reached suggests that Apple is well on track and will launch the iPhone 17 in the usual September timeframe.

EVT phase for iPhone 17 completed

According to a report by DigiTimes, Apple has completed technical validation testing (EVT) for at least one iPhone 17 model. During this phase, prototypes are intensively tested to ensure that all hardware components work together and that quality meets expectations. Following the EVT phase, two more critical steps follow: Design Validation Testing (DVT) and Production Validation Testing (PVT). Mass production only begins once all tests have been successfully completed. Completing EVT is therefore a normal but significant part of the development process.

What does the completion of the EVT phase mean for the iPhone 17?

Although the EVT is complete, this does not mean that the final design is 100 percent finalized. Apple still has the option to make minor changes to the hardware if further testing reveals any room for improvement. A current example of this is the question of how much RAM the various iPhone 17 models will have. Analyst Ming-Chi Kuo expects Apple to make a final decision by May on whether the base iPhone 17 model will be equipped with 8 GB or 12 GB of RAM. He estimates that the iPhone 17 Air, iPhone 17 Pro, and iPhone 17 Pro Max models will come with 12 GB of RAM. This would make them significantly better equipped in terms of RAM than their predecessors (via DigiTimes).

What can you expect from the iPhone 17?

In addition to the development information, there are already a number of rumors and predictions about the upcoming iPhone 17 models. Here are the key points:

  • The iPhone 17 Air is said to have a particularly light and thin design.
  • Camera technology is expected to continue to improve, especially when shooting in low-light conditions.
  • Improvements in battery life are also expected, partly due to more efficient chips.
  • The display should be brighter and at the same time consume less energy.

This information is based on current reports and analyst estimates. Official details from Apple are not yet available.

  • Apple: Analyst forecasts point to stable growth

iPhone 17 mass production is getting closer

Apple has reached an important milestone with the iPhone 17. The completion of the EVT phase shows that development is proceeding according to plan. While minor changes are still possible, it's already clear that the iPhone 17, iPhone 17 Air, and the Pro models will bring exciting innovations. Above all, more RAM, better design, and more powerful hardware are on the cards. If you're waiting for a new iPhone, it currently looks very good that Apple will deliver as usual in September. (Image: Shutterstock / Thaspol Sangsee)

  • Will Apple really introduce an iPhone 17e in 2026?
  • Apple 2027: New iPhone design could be really expensive
  • iPhone 17 rumors: Will the RAM upgrade come to all models?
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Milan Jovicic

Milan Jovicic

Milan founded Apfelpatient in 2016 and has been responsible for all editorial content since 2018 – news, rumors, how-to guides and product reviews. Here, Apple devices aren't review units kept for two weeks, they're everyday tools: from iPhone to MacBook Pro, MacBook Air and iMac all the way to Apple Vision Pro, at least one device from every product category is in daily use, many of them replaced every year. Every menu path in a guide is checked on the device before it goes live.

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