There’s certainly some retro appeal to Insta360’s new action camera accessory. The pill-shaped Insta360 Go 3S 4K action camera launched in June 2024 as an updated version of the 2.7K Go 3 that debuted a year prior. While last year’s Go Ultra introduced a redesign with a larger sensor and higher frame rates, the Go 3S has stuck around as a smaller but still very capable alternative. To broaden its appeal, the action cam is now available with a new optical viewfinder accessory for framing shots