Sony FX3 vs FX6 vs A7S III – The 2025 Comprehensive Comparison
Sony’s A7S III, FX3, and FX6 all use a 12 MP-class full-frame sensor, with the FX6 rated at 10.2 MP effective for 4K. All three shoot 4K up to 120 fps; FX6 also records true DCI 4K and 1080p at 240 fps. Dual-base ISO and S-Cinetone are standard, with in-camera LUT workflows arriving via firmware by 2025. FX6 features built-in ND, 4-channel XLR, and pro connectivity; A7S III and FX3 support USB-C PD power.