I was very interested about 4G LTE bands
to see if it is compatible with band 38 TDD
. In the specs on GSM Arena this band is not mentioned.
Also the fingerprint sensor is not there on this model.
Please be aware that there is another model of 3S(same with 2GB RAM and 16GB ROM - not Prime)
that has fingerprint sensor and also supports more/other 4G bands.
I found that one online and purchased in the end, but it might be a bit confusing.