4 answers
I'd sit tight with the 15 Pro unless you're specifically frustrated with how it handles low-light stuff or you're doing serious video work. I took a bunch of photos on both at a friend's place last month and yeah, the 16 is a notch sharper in dim conditions, but the 15's output still looked great when I wasn't pixel-peeping - the real-world difference only mattered when I was editing shots that needed major exposure recovery.
The camera jump isn't as dramatic as some people make it sound - the 15 Pro is still solid. That said, if you shoot a lot of video or push your photos in post-processing, the 16 Pro's improved sensor and processing do make a noticeable difference, especially in low light. Are you mostly doing casual phone photography, or are you looking to get more serious with it? That'd probably help determine whether it's worth the cost for you.
If you're already happy with how your 15 Pro shots look, the upgrade isn't a must-have. The real gains show up when you're working in tricky light or cropping heavily in post - the 16 Pro handles both better. Video is noticeably smoother and the autofocus is faster, which matters if you're shooting anything that moves. But "noticeably" doesn't mean "game-changing," and plenty of people do incredible work with last year's hardware.
Where I'd actually consider jumping is if you shoot a lot of backlit scenes or low-light stuff. The sensor improvements help there, and you'll spend less time trying to recover shadows in editing. One thing nobody talks about though: the 16 Pro's tighter lens tolerances mean less variation between devices, so if you're picky about corner sharpness or color rendering, you might get a more consistent experience.
The practical hack most folks miss is testing the computational photography differences in person before buying. Go to an Apple Store, shoot the same scene on both phones, and check your results on a big screen at home. That ten-minute comparison will tell you way more than specs ever could. You might find the jump worth it, or you might realize your 15 Pro is doing exactly what you need.
Pixel peeping the specs won't tell you much - you need to actually compare shots from both phones in the exact lighting conditions you shoot in most, because the 16 Pro's gains are real but narrow (better detail retention in shadows, cleaner zoom). The trap everyone falls into is thinking the jump matters if you're just posting to Instagram or using the standard Photos app; the upgrade only pays for itself if you're regularly working with raw files or doing serious video grading, otherwise your 15 Pro is genuinely still plenty.
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