Which iPhone Should You Buy? Four Questions That Matter More Than the Specs

Most iPhone comparisons start from a spec table, and that's the short road to paying for capabilities you won't use. The question "which iPhone should I buy" is answered faster from the other direction: what do you do with your phone on an ordinary day? Four questions are enough to reach a decision.

Which iPhone is best for photography, and when the Pro is worth the difference

If you mostly shoot during the day, outdoors, and post to social media, any iPhone from recent years will give you a good result. The difference between the standard model and the Pro shows up in low light and zoom: a concert, a dinner, kids in the living room on a winter evening. If most of your photos look like that, the choice between an iPhone 17 Pro and a standard model is already made. If not, you can save the difference.

How many hours is your screen on

This is the figure that decides whether the battery will be enough, more than the number written in the specs. Five hours of screen time a day and two hours a day are two completely different users. You can see yours in Settings, under Screen Time.

The Pro Max models last longer because they're bigger and fit a bigger battery. If you get to the evening with 10%, that's the upgrade you'll feel every day, far more than any processor improvement.

iPhone 128 or 256 GB?

Check how much is used today: Settings, General, iPhone Storage. A rule of thumb that works in most cases: double what's used now, and that's the storage you'll need in three years. Someone who's at 60GB today will feel cramped on 128GB. Someone who's at 25GB doesn't need 512GB.

You can't increase storage after you buy. Of all the decisions here, it's the only one with no fix.

How many years will you keep the device

If you replace your phone every two years, you can buy the base model with a clear conscience. If you keep it four or five years, a higher model will pay off: it will get software updates for longer and still feel reasonable in the fourth year.

What matters less than it seems

The processor. The difference between generations looks good in benchmarks and is barely noticeable in WhatsApp, navigation and scrolling. If you don't edit video and don't play demanding games, you won't feel it.

If you're torn between two neighboring models, take the cheaper one and put the difference toward more storage. Three years later you're almost always happier with that decision. Before you pay, it's also worth finding out where you take the device when it breaks, which is explained in official or parallel import. The models in stock are in the iPhone category.