your chinese is amazing!
萝卜青菜，各有所爱
我不是个苹果迷 ---- we say also: 苹果粉丝 --- 粉丝 is a new word coming from fans. Now we use 粉丝 more. ofc 迷 is totally correct.
虽然苹果的做工、卖相都很不错，但是我觉得价格不怎么亲民。即使我有钱，我也不会买的。我感觉现在很多人之所以买苹果产品是因为向别人炫耀。
我用的是安卓系统的智能机。其实我从今年春天起才开始用智能机了，
我用以前的手机连照相也不会，别说上网。 ---- somebody 会/不会 something 能/不能
我不会游泳 ---- I can't swim. In other words, I have no capacity of swimming. If I swim, I ll drown.
我的手机不能拍照 ---- my cellphone has no function of photo.
我不能游泳 ---- I can't swim. In other words, I do have capacity of swimming. But because of some reason (for exmaple I am sick), I can't swim for now.
我的手机不会拍照 ----- this is wrong. 手机 is a thing, instead of human. Human can "会" or “不会”. Thing can't.
我买的手机有很多好点优点，比如它的样子很可爱，应用程序比较多，功能特别好什么的。我只是要剪卡才就能用。起初我想自己剪卡，不过因为我担心我会剪坏，所以我去旗舰店剪卡，服务员用机器一压就行了。
（只）要A就B means that we can get B only if A has been done, meaning that we want to get B and it's very simple, what we need is just make sure that A has been done.
我只要剪卡就能用。 ------ to use my cellhone, I just need to cut the card, that's all, so easy.
要A才B ---- if we want to get B, we must keep A has been done. If we use this structure, it means that A may be hard may be not, but I want to say that A is very important.
我要剪卡才能用。 This means that I can't use my cellphone until my card get cutted.
In this case, obviously you should use the first structure: （只）要......就......
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I agree with you. Many people buying iphone is just for vanity. But others are not.
for example, I use iphone, but I don't change my iphone like a stupid. If my iphone can offer me what I need, I won't change it. Some people bought iphone4 iphone4s, iphone5, iphone6 etc. This is totally stupid. For me, I have been using my iphone 4 for 5 years. It works very well. So I won't change it.
My reason why I choose iphone is that its quality is perfect. I have been using my iphone4 for 5 years, there isn't any problem. It's just like a new phone.
萝卜青菜，各有所爱
我不是个苹果迷。虽然苹果的做工，卖相都很不错，但是我觉得价格不怎么亲民。即使我有钱，我也不会买的。我感觉现在很多人之所以买苹果产品是因为可以向别人炫耀。
我用的是安卓系统的智能机。其实我从今年春天起才开始用智能机了，我用以前的手机连照相也不会都不行，更别说上网了。
我买的手机有很多好点优点，比如它的样子很可爱，应用程序比较多，功能特别好什么的。我只是要剪卡才能用。起初我想自己剪卡，不过因为我担心我会剪坏，所以我就去旗舰店剪卡，服务员用机器一压就行了。
萝卜青菜，各有所爱
我不是个苹果迷。虽然苹果的做工，卖相都很不错，但是我觉得价格不怎么亲民。即使我有钱，我也不会买的。我感觉现在很多人之所以买苹果产品是因为向别人炫耀。
我用的是安卓系统的智能机。其实我从今年春天起才开始用智能机了，我用以前的手机时连照相也不会，更别说上网了。
我买的手机有很多优点，比如它的样子很可爱，应用程序比较多，功能特别好什么的。我只是要剪卡才能用。起初我想自己剪卡，但是因为我担心我会剪坏，所以我去旗舰店剪卡，服务员用机器一压就行了。
我用以前的手机...-我在用以前的手机时....
别说上网-更别说上网了
手机有很多好点-手机有很多优点
萝卜青菜，各有所爱
我不是个苹果迷(粉丝---fans)。虽然苹果的做工，卖相都很不错，但是我觉得价格不怎么亲民。即使我有钱，我也不会买的。我感觉现在很多人之所以买苹果产品是因为想（要）向别人炫耀。
我用的是安卓系统的智能机。其实我是从今年春天起才开始用智能机（子）的，我以前用的手机连照相也不会，更别说上网了。
我买的手机有很多好处/优点，比如它的样子很可爱，应用程序比较多，功能特别好什么的。我只需要剪卡就能用。起初我想自己剪卡，不过因为我担心我会剪坏，所以我去旗舰店剪卡，服务员用机器一压就行了。
Good writting! so glad for you.:)
萝卜青菜，各有所爱
我不是个苹果迷。虽然苹果的做工，卖相都很不错，但是我觉得价格不怎么亲民。即使我有钱，我也不会买的。我感觉现在很多人之所以买苹果产品是因为要向别人炫耀。
我用的是安卓系统的智能机。其实我从今年春天起才开始用智能机了，我用以前的手机连照相也不会能，别说上网。
我买的手机有很多好点处，比如它的样子很可爱，应用程序比较多，功能特别好什么的。我只是需要剪卡才能用。起初我想自己剪卡，不过因为我担心我会剪坏，所以我去旗舰店剪卡，服务员用机器一压就行了。
