Install It for Siri Voice Translation
If you've got a spare device sitting around and you're currently traveling or about to leave on a trip, consider trying the iOS 11 beta for this new Siri feature.
iOS 11 delivers a number of important upgrades to iOS' virtual assistant but travelers should key in on just one: Instant voice translation.
With iOS 11 beta on board, Siri can translate English into Chinese, French, German, Italian or Spanish simply by using your voice. There are tons of voice translation tools on the App Store but many of them are expensive.
Siri will speak the translation and it'll also write it out the translation for you. Just make sure you have an internet connection there, or you won’t be able to use this feature.