You can push to 3/4 years easily nowadays. I had the 12 pro and it was ok, only the battery life sucked and now that I switched to 15 pro I notice a big difference in speed and battery. Also the camera is the one who gets the huge improvements, but I personally don’t care that much about that.

Depends on your finances

3-5 years. But with carrier trade in incentives like AT&T every 3 is a no brainer.

You will notice and enjoy the upgrade after 4 gens. Example: 11 to 15

Until it stops getting new ios updates.

If I’m buying the last iPhone, I wouldn’t think of an upgrade until at least 3-4 years.

For me it’s optimally 4 years Maybe 5 if the battery is fine (with 1 battery replacement around the 2.5 year mark).

But I’m also not a “power user” I just get the base one and I’m good for a few years. Even now I have the 13 base 128 GB and I’ve only used up around 50 GB (this includes 10GB iOS, 10 GB System data and 11 GB photos and that’s a full 2 year’s worth without enabling optimise photos). I’m guessing this is also why I don’t generally notice a lot of bugs.

3-4

We got two 11PMs at the beginning of 2020. No new iPhone really looked attractive until the 15PM. We got one 15PM that she uses. I still use an 11PM and see no reason to upgrade until it fails or really degrades in performance. But I’m sure that will happen within a year. So 4 years + or -.

Wife was doing every year and I was getting her phone to use for the 2nd year, we recently changed to her getting one every other year and me getting one every 3 years, will see how it goes but I just don’t feel like the upgrade even every other year was worth it for me anymore.

I feel like every 3 years will be the longest I will be willing to wait to upgrade though.

I went from a 12 Pro to 15 Pro Max. Three years is about the max for me. At the end my battery was horrible on the 12 Pro. If it wasn’t for battery life I may have kept it one more year, but resale value it also a concern.

I’m on track for another phone lasting longer than iOS updates (6+yrs). I mostly use lite apps and wifi so combine with efficiency-tuned settings and running a custom charge optimization, my original batt should be fine averaging my ~7hrs SOT/day.

3if money is no problem , but 4 or 5 also work.

Depends for me on three things:

1. what new features the new phones have
2. how pleased - or otherwise - I am with my current iPhone
3. what kind of deal my provider offers me

I’ve done everything from ‘three years’ to ‘one year’, depending on a combination of all three.

It’s usually two years, give or take, but this time around, I liked what the 15 Pro offered, I wasn’t happy with the 14 Pro for a couple of reasons, and my provider offered to swap me over for exactly the same price as I was paying for the 14 Pro… so yeah.

With a battery change, possibly like 5-6 years.

I had my 11 Pro Max for 4 years and the battery health was 80%. The lag was becoming unbearable. Only reason I went for a trade-in over replacing the battery is 64gb just wasn’t cutting it anymore. I held out a little too long in my opinion, so I’m gonna go with like 3 years if you don’t plan on replacing the battery.