Display & Brightness: Both phones have a 6.30-inch Super Retina XDR display with 120Hz ProMotion, Dynamic Island, always-on mode, HDR, True Tone, etc. However, the iPhone 17 Pro offers a significantly higher peak brightness of up to 3,000 nits compared to 2,000 nits on the 16 Pro, making it better under strong sunlight. Other display features, such as wide P3 gamut, anti-reflective coating, and fingerprint resistance, remain similar.