Bought this (Samsung j3 2016 international) for international travel using sim cards. Used it in Rwanda, Uganda and Tanzania. Was able to register and use it in each country, though usually had an issue using the internet directly on it and instead often employed it as a hot spot for my other phone (which is not otherwise compatible for international use). It worked great as a hotspot for internet and by itself for messaging, also worked great directly when there was wifi. Im not sure if the direct internet issues were with the service I bought, or some setting i had wrong, or with this phone itself, so cannot say. But it made connectivity possible and solidly reliable by acting as a mobile hotspot and I was traveling with both phones anyway, so to me that was not much of a problem, other than having to keep them ... full review
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