iPhone vs Android for GPS?

I’m not sure if this will be helpful because I’m completely ignorant of Android devices but I find Caltopo/Gaia to work really well on iOS. They are highly accurate (they consistently place me right at known landmarks like a lake outlet or bridge). Besides those positive experiences I cannot offer insights on the engineering behind the platforms and compare any nuanced differences in how they handle GPS.

I suspect this is like the Mac vs PC thing. Most people have opinions and a preferred platform but they both get the job done in a similar manner.

I used iphones for my first ~6 year of having a smartphone, and it was never the latest and greatest one. The iPhones saw use as a secondary navigation tool for an AT thru and numerous shorter trips as well as long bike trips outside of cell service. The GPS functionality was perfectly adequate. My biggest complaint with the iPhone was that cold would kill it. If it was exposed to anything below ~40 degrees for long the battery life would plummet. Much below freezing and the phone wouldn’t function at all. When hiking in winter I would have to warm it up against my body while being plugged in if I wanted to use it.

I recently switched to a “rugged/outdoors/military grade” smartphone which is an Android that has all the features I want while in the back country upgraded beyond the capabilities of most smartphones, including the GPS. With the upgraded GPS it performs marginally better for navigation than my iPhone did but I still think the GPS on the iPhone is on par with comparable Android phones.

iPhone is great in regards to GPS. Works flawlessly.