I Gave an Xperia Z3 for myself as a Christmas Present.

Today, I bought an Xperia Z3 which is a smartphone made by Sony in an electronics store.

I could purchase it at 0 yen because I used MNP(Mobile Number Portability system) and then discount campaign of MNP was applied.

However, since the monthly fee is 1,000 yen during 2 years, so practically I bought it 24,000 yen.

It was a little bit late, but as a christmas present, I gave the Xperia Z3 for myself.

Hehehe.

今日は、電気屋でSony製のスマートフォン、XperiaZ3を買いました。

番号ポータビリティ（MNP）で購入したので、キャンペーンが適用され、本体代金0円で購入できました。

月額料金が2年間の間1000円なので、実質24000円で買ったことになります。

少し遅くなってしまいましたが、私自身へのクリスマスプレゼントです。

へへへ。

• Today, I bought an Xperia Z3 which is a smartphone made by Sony in an electronics store.
• Today, I bought an Xperia Z3, which is a smartphone made by Sony, at an electronics store.

• I could purchase it at 0 yen because I used MNP(Mobile Number Portability system) and then discount campaign of MNP was applied.
• I could purchase it for 0 yen because I used MNP (Mobile Number Portability system), and then MNP's promotional discount was applied.

• However, since the monthly fee is 1,000 yen during 2 years, so practically I bought it 24,000 yen.
• However, since there is a monthly fee of 1,000 yen for 2 years, I practically bought it for 24,000 yen.

  You can use either 'since' or 'so' in a sentence, not both. (They have the same meaning.)

• It was a little bit late, but as a christmas present, I gave the Xperia Z3 for myself.
• It was a little bit late, but as a Christmas present, I gave the Xperia Z3 to myself.

• Hehehe.
• This sentence is perfect! No correction needed!

• Today, I bought an Xperia Z3 which is a smartphone made by Sony in an electronics store.
• Today, in an electronics store I bought a Xperia Z3 which is a smartphone made by Sony.

  "An" is used before words starting with a vowel sound (example: an apple; an iPad etc.)

• However, since the monthly fee is 1,000 yen during 2 years, so practically I bought it 24,000 yen.
• However, since the monthly fee is 1,000 yen during 2 years, so practically I bought it for 24,000 yen.

• It was a little bit late, but as a christmas present, I gave the Xperia Z3 for myself.
• It was a little bit late, but as a Christmas present, I gifted myself the Xperia Z3.

The design of this handset is just superb. By the way, what color have you got?

• Today, I bought an Xperia Z3 which is a smartphone made by Sony in an electronics store.
• Today, I bought an Xperia Z3 which is a smartphone made by Sony in an electronics store.

Yay! :D
I got a Z3 too!
But I got the compact one.