wifi is useless.. i had a z3 before with no problems at all, my wife still has a z3. when i do a test i reach 5mbit when standing 3m from router. (100mbit fiber) when i do the same test with z3 i reach 73mbit. also, smartwatch2 does not connect with z5.. i do not use stamina mode. fix this or i return it and buy a samsung edge instead!!
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