The DJI Osmo Action 4 is a serious GoPro competitor that consistently impresses with its larger 1/1.3-inch sensor (the biggest in any action cam at launch), giving it a clear edge in low-light situations. At -20°C cold-start performance and 160-minute battery life it outguns the Hero 12 in real-world conditions. Front and rear touchscreens, 4K/120fps recording, and RockSteady 3.0 electronic stabilisation round out a package that's compelling for adventure and sports vloggers.