With external power, the HERO5 Session can record indefinitely. Note though that when the power supply is plugged in, the camera will not be waterproof, so you'll want to make sure the camera is mounted somewhere where it can remain dry.
4K will use memory faster than other resolutions, so you'll want to experiment with cards before you take it out on a ride. For 3 hours, you're most likely going to need to swap cards or find a 128GB or larger card that will work with the GoPro.
6 years, 5 months ago
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