I have compared the two Action Cams, DJI Osmo Action 3 & Action 4.
Video Quality, Hardware/Software Changes , Low Light Performance and most importantly Overheating Test, which will surprise you

0:00 Overview and Test Scenarios
0:44 Hardware Changes
1:45 Software Changes
2:11 Video Comparison
5:54 Low Light Test
6:42 Overheating Test
9:03 Conclusion

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