With daughter living in Switzerland, I am over there quite a bit to spoil the grandchild. That is the one thing that has kept me at T-Mobile as hey include 170 countries for free, Wi-Fi and text up to plan limits (unlimited in my case) and reduced voice and checking voicemail is a phone call - so I don’t. If I have to have a rare voice call, will coodinate FaceTime or Skype ( including non-video skype dial when had to contact an airline) over Wi-Fi.
That said, still thinking of the separate SIM. Cellular Wi-Fi and text is great, but have run into hotspot issues, as Swiss Telecom on trains and other sites has a logon with phone number - rejecting US so apparently only Swiss, to access the fre Wi-Fi, but usually could still get cellular. Sometimes even got the French telecom if their signal was stronger close to the border. To get past the USA providerSIM deactivated when removed to insert the foreign SIM, thinking about bringing my old 6s and have both.
Don’t know about Verizon billing, but be careful if like AT&T, as the International Plan is per billing cycle, so if the two weeks span two billing cycle, you are paying for 2 months. Foreign SIM all the way and don’t look back.
Great to be in a city and maps highlights where you are and destinations. Also, download train and bus app, load in credit card can purchase ticket. Also, pack a USB battery backup charger. Nothing is worse than return ticket on the phone and dead battery from sightseeing photos. Learned the hard way, turning off my phone with 5% charge and return ship (part of SBB train app) across Lake Geneva. Just made it, but ship did have charge points, just as trains do. The discount EasyJet doesn’t have usb in seats and had to stand in line to buy a Train ticket rather than use the phone, and couldn’t use the kiosk for a ticket as credit cards use PIN which US credit cards don’t provide. Debit card with PIN works and with much of Europe cash based, use on ATM, but also works at kiosk for tickets. Don’t know about Apple Wallet.
