Oppo F1 and F1s Case
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OPPO F1 is based on the R7 family design, with rougher edges, 5-inch screen and a 2.80x5.65x0.29 inches dimension. F1S on the other hand uses design from the R9 family, with much rounder edges, 5.5-inch screen and a 2.99x6.08x0.29 inches dimension.