Apple’s iPhone 15 Pro series uses a Grade 5 titanium frame replacing stainless steel, making it about 18 grams lighter than the previous model. Samsung’s Galaxy S24 Ultra features a reinforced titanium alloy chassis and a large camera housing with built-in S-Pen. Google Pixel 9 Pro supplies a 6.7-inch flat OLED display at 1344×2992 resolution…
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