For those of you that switch back and forth how do you manage your overall experience? Apple photos vs google photos, Apple Watch vs wear watch, messages, AirPods, etc.
I’m really intrigued by the pixel 3a and nest hub max, to go with my nest thermostat, and maybe a nest doorbell can. I already pay $10/mo for iCloud photo storage and don’t want to double it because I want to try out a pixel.
I'll second the suggestions by
@Infinite Vortex and
@Cnasty. If you plan to switch platforms with any regularity, stay away from Apple's proprietary solutions, else be prepared for lot of manual synchronization. I now use Google services for most things (Gmail account to sync across Google apps and services on all platforms). I have my photo libraries synced on both iCloud Photos and Google Photos (at original quality) because I'm a bit paranoid about making sure my photo/video library is backed up (I actually have it backed up 5 different ways

). It is admittedly a pain in the ass though as I have to manually download and move any photos I have taken with my Pixel into iCloud Photos. If you preferred to invest in just one, Google Photos would be the easiest solution to use across all platforms . The cost of Google One storage (if you prefer to save your photos and videos in full original quality) is basically the same at iCloud storage.
If you just want to try out the Pixel and see how you like Google Photos, opt for the free unlimited option that saves 'high quality' versions. I believe any photos =< 16MP and 1080P video will still be kept in original quality with that free tier...above that are compressed a bit. If you find that you ultimately prefer the Pixel, you can swap over to the paid tier for the same cost as you're spending on iCloud.
As for other services..I just use SMS/MMS via the Google Messages app on the Pixel (if you want to switch phones with any regularity, just shut off Apple Messages and send via SMS/MMS on the iPhone as well...it'll save you recurring headaches trying to de-register your number from Apple Messages and potential missed messages.). Lots here use 3rd party solutions like WhatsApp or Facebook Messenger but I don't have any contacts that use WhatsApp and regardless, refuse to use any apps or services from Facebook.
AirPods work just fine across all platforms. You will just lose some of the Apple proprietary features (i.e. won't automatically stop music playback when you remove them and double-tap no longer works).
There is no equal to the Apple Watch on Android so just be prepared to go without it. I couldn't leave it behind so I have a second line for an iPhone that's paired to my watch with is also on a cellular plan, allowing me to wear my Apple Watch daily while still using a Pixel 3 XL. But I also am getting a steep discount on both of those lines and wouldn't do so otherwise.