iPhone 18 Pro vs iPhone 17 Pro: Should You Upgrade or Wait? Check the Key Changes
The iPhone 18 Pro brings a new A20 chip, a variable-aperture camera and other upgrades over the iPhone 17 Pro. Check the key differences, prices and whether you should upgrade.
September 15, 2026: The iPhone 18 Pro pre-booking will start today in India. But what changes has Apple made in the new model compared to the iPhone 17 Pro? There are expected to be major upgrades, especially in the camera system and the new A20 chip.
In this article, we will share the key upgrades and differences between the iPhone 18 Pro and iPhone 17 Pro, so you can compare both models before pre-booking the new iPhone.
More Powerful A20 Chipset
The iPhone 18 Pro will have a very fast A20 chip. According to reports, this chip is being manufactured using TSMC's 2nm process. The iPhone 17 Pro had an A19-generation processor. This new 2nm chip will not only increase processing speed but will also reduce power consumption. As a result, gaming performance, on-device AI features and battery life are expected to improve significantly.
Increased Battery Capacity
According to leaked information about the US variant, the iPhone 18 Pro may have a 4,288mAh battery. This is slightly larger than the 4,252mAh battery of the iPhone 17 Pro. However, even though the battery capacity has increased slightly, tech experts say that daily battery life could be much longer than expected due to the efficiency of the A20 chip.
Main Camera With Variable Aperture
This time, Apple is expected to make a major change to the camera department. The main camera of the iPhone 18 Pro may use a variable-aperture lens. The older models had a fixed aperture. As a result, it will be much easier to control light, adjust exposure and create background blur for portraits. Great photos can also be taken in low-light conditions. In addition, Apple is reportedly testing a new telephoto camera for better-quality low-light photos, which will have a wider aperture.
New Three-Layer Stacked Image Sensor
The iPhone 18 Pro may have a three-layer stacked image sensor. This cutting-edge technology could increase the camera's response speed and greatly reduce image noise. The display size will remain 6.3 inches, like the iPhone 17 Pro. However, the size of the Dynamic Island above the screen may be smaller. The new LTPO+ display technology could also reduce the screen's power consumption.
New C2 Modem and Design Changes
Apple's own new C2 modem may come to the iPhone 18 Pro. It is expected to provide faster 5G performance than the older C1 and C1X chips. The weight and thickness of the phone may increase slightly due to changes in the battery and cooling system.
A glass finish on the back and a new Dark Cherry colour option are also expected. However, apart from the design, upgrading to the iPhone 18 Pro may be a good option for those looking for improvements in the camera, battery and processor.
Price Comparison in India
| Storage Variant | iPhone 18 Pro Price | iPhone 17 Pro Launch Price | Price Difference |
|---|---|---|---|
| 256GB | ₹1,64,900 | ₹1,34,900 | +₹30,000 |
| 512GB | ₹1,89,900 | ₹1,54,900 | +₹35,000 |
| 1TB | ₹2,39,900 | ₹1,74,900 | +₹65,000 |
Should You Buy the iPhone 18 Pro or Wait?
If you are still using an iPhone 15 Pro or an older model, upgrading to the iPhone 18 Pro, priced from ₹1,64,900, could be a good choice. You will notice the difference in speed, camera features and battery life. However, if you are already using the iPhone 17 Pro, the decision is not as simple.
The chip and camera upgrades are useful, but they are incremental rather than major changes. Unless the variable-aperture camera or the new C2 modem solves a specific problem for you, keeping your iPhone 17 Pro for another year is also a reasonable choice.
The iPhone 18 Pro and iPhone 17 Pro have a noticeable price difference across all storage options in India. The iPhone 18 Pro starts at a higher price because Apple has removed the 128GB storage option and increased the base price.
