Some of the newer GoPro models allow you to change the wifi band. Specifically, this applies to the HERO7 Black and HERO6 Black models.1
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There are two main wifi frequencies: 2.4GHz and 5GHz (GHz = gigahertz). The 5GHz frequency is newer, less congested, and faster, and it's what these cameras are set to use by default. Many newer wifi devices, including newer smartphones, support 5GHz.
But there are reasons you might want to switch back to the 2.4GHz frequency. While it's much more crowded, it's also much more compatible with other devices, including older smartphones. An easy example in GoPro's own universe of products is that the older GoPro Wifi remote uses 2.4GHz. Overall, there are many more devices that are compatible with 2.4GHz than 5GHz.
That, in turn, can lead to congestion issues on the band, as you might run into interference with anything from baby monitors to wireless routers to garage door openers. That's not a problem if you're out in the surf or on a mountain, but it can be an issue in crowded urban areas.
Congestion issues aside, you can potentially get a stronger and more stable connection via 2.4GHz, especially if you're pushing the distance boundaries or trying to transmit through walls or other physical barriers.
Less commonly, but still conceivable, is that you might be in a location where the 5GHz band is still restricted and not available to use for consumer devices.
Switching between the two wifi bands is straightforward. You can find the toggle switch under this menu setting for each camera:
- HERO7 Black: Preferences > Connections > Wi-Fi Band
- HERO6 Black: Settings > Connections > Wi-Fi > Wi-Fi Band
- The HERO5 Black also has dual-band wifi, but it's automatic on that camera and doesn't give you the option to assign one or the other. ↩