Not really, I bought data esim for japan travel, reach there realised either no reception or on/off, then realised my phone doesn't have all the bands for KDDI, can't switch esim to another phone.
Both Apple and Google are improving the ability to move eSIMs between phones. Apple already supports moving eSIMs between iPhones, and in iOS 26 (the next release in September, 2025) Apple is adding the ability to move eSIMs between iPhones and Android devices. (This is the
technical capability. Carriers still need to cooperate in letting customers move eSIMs between devices on their own.)
Also, how would you buy a physical SIM to get data service in Japan
before you get to Japan? Realistically that's only with an eSIM, or at least it's a lot easier with an eSIM. (You can shop for them on esimdb.com, for example.) That's an advantage, the convenience. This added convenience didn't work out for you with your particular device, but some people have appropriate devices and appreciate the convenience. (Or they pick an eSIM that roams onto a different carrier in Japan that works better with their particular device.)
End up buy another esim for another phone for immediate use
If i have physical data sim for travel, easily switch to other phone if poor or no reception
Yes, you can. But there are some advantages with eSIMs. There are pros and cons with both. For example, if you lose your phone (the one with your physical SIM) while in Japan then it'll take quite a while before you can get a replacement SIM since you probably can't get one in Japan. With an eSIM you have at least the
possibility to obtain a replacement while abroad.
"Pick your poison," basically.
