[請問] 手機雙卡雙待?4G、3G、2G?
想請問一下,現在手機雙卡雙待有兩個卡都能支援到4G的嗎?
另一個問題,現在的手機雙卡雙待是不是都是一個可以支援到4G,另一個只能支援到2G?
GSM是2G訊號吧,WCDMA為3G,而LTE為4G
不知道我的認知有沒有錯誤
但我看大部分雙卡雙待的手機SIM1寫LTE,SIM2就寫GSM
看來看去好像SIM2永遠都是GSM
而最近又說2G訊號未來會完全關掉,這不就表示SIM2等於完全沒用了
另外又看到另一種雙卡雙待SIM1跟SIM2都可支援到4G
但是同時插的時候,其中一張會變成只能收2G訊號,
是不是表示未來沒有2G訊號後,這支手機又等於還是只能收一張卡的訊號
我主要的問題就是想問,未來2G訊號關了的話,以現在在市面上的手機
目前是找不到一支真的可以雙卡雙待的,現在說雙卡雙待的都是假的就是了?
是這樣嗎@@
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