I have an iPhone 13 Mini, purchased directly from Apple (thus unlocked) with my Verizon Wireless account on the eSIM. [Edited to add: the 13 is a dual-SIM, one eSIM and one regular SIM slot.]
I'm heading to the UK for two weeks with my parents, and planning to purchase an unlimited data-only nano-SIM. (Thinking about a Sims4Travel Vodafone SIM, because Vodafone seems to have the best coverage in the Lake District? Sims4Travel gets good marks for customer service, too.) My parents plan to purchase UK SIM cards with both data and voice for their iPhones, so I'm covered for local calling needs, except for emergencies.
I tend to be a heavy data user, and I want to be able to text photos and videos to my husband and daughter back in the US (we're all on Apple devices). But if I want to call and hear their voices, I don't mind using FaceTime, or wifi calling back at the hotel. So I figured the unlimited data SIM was the best deal—everything else had limitations or throttling or extra charges for certain things, and this has unlimited 4G/5G data.
But I'd like to be able to check in on my home Verizon account occasionally, to make sure I haven't missed any important texts or calls. Thinking about enabling the Verizon Travel Pass option before I leave, but leaving the eSIM "line" either disabled entirely or on Airplane Mode, enabling it once or twice during the trip just to check up on things. That would also give me a voice option for emergencies, where I wouldn't be fussed about the $10 charge to activate it that day.
But I'm so used to always having a phone line available whenever data is available, I'm having trouble envisioning how a data-only SIM would look with my normal usage. Email and apps, fine, should work the same on data-only. And basically, I can communicate as usual with other iPhone users back home, as long as I can connect to a cell tower, right? They'll roll right over to iMessage and pop up using my data, correct? I know texts or voice mails from, say, an Android user won't pop up until I enable the eSIM line and turn off Airplane Mode.
Ideally, I'd prefer to leave the eSIM enabled with Airplane Mode turned on until I'm ready to check in, but I'm still worried Verizon will find a way to ping me for daily Travel Pass usage anyway. I know just disabling data isn't enough, but I need someone to tell me for 100% certain Airplane Mode won't result in Verizon charging me somehow!
At any rate, has anyone done something like this successfully? Or see any holes in my plan?