please help me decide

I am trying to purchase a replacement phone to use until I am eligible for upgrade in September. I am really just concerned that it has good reception and able to text. Which do you consider a better phone the Pantech C120 or the C150?

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› See More: please help me decide

I have been using a go phone form ATT for about 5 years. I have used two different phones, A Nokia 5100, and my current phone, a Motorola V173. Both phones had good reception, and the ability to text.