Should i get a sapphire ring or the new samsung eternity phone?

i was walking by this store and i saw this gorgeous sapphire ring. it cost $500. Since my birthstone is sapphire, i thought i should get that for my self. But the next day I saw this , the new samsung eternity .I read reviews and its details and i thought it was a perfect buzz for me. My dilemma is which to choose. for the buzz i estimated i would pay $80 a month. Can anyone help me choose . i would be glad to add more details if necessary .

thank you all.

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