Top critical review
Wi-Fi Calling is NOT an option in Settings
Reviewed in the United States on November 3, 2018
My rating is specifically for an unlocked phone. Wi-Fi Calling is a very important, should be standard, feature. If Wi-Fi Calling and advanced messaging features are important to you - then sadly, this UNLOCKED phone is not an option, you'll need to buy a phone directly from your carrier.
My service provider is AT&T Network, USA. Settings --> Wi-Fi Calling is NOT an available option. I bought this factory unlocked phone from Amazon. Neither Samsung nor Amazon disclosed that Wi-Fi Calling is not available on unlocked phones. An internet search reveals that MANY people have purchased unlocked phones not being aware that Wi-Fi Calling would not work. I saw complaints from AT&T & T-Moble customers (along with other less prominent carriers).
This poor review has nothing to do with the hardware and everything to do with the software. This phone is unusable in areas of poor cell coverage (i.e. the mountains) as Wi-Fi Calling is not an option.