The modular action camera — swappable 360 and wide-angle mods on one core.
The 2020 Insta360 ONE R is a modular action camera: a core processor unit that accepts interchangeable mods — a dual-lens 360 mod, a 4K wide-angle mod, and a 1-inch sensor mod co-engineered with Leica.
The core provides the touchscreen, controls and battery base; swapping mods changes the camera's character from 5.7K 360 capture to conventional 4K60 action footage or 5.3K 1-inch quality.
Its significance is the modular concept itself: one purchase covered 360, action and high-quality wide shooting, and the edition bundles (Twin, 1-Inch, Ultimate) simply packaged different mod combinations.
Used listings usually name a bundle — Twin Edition (360 + 4K mods), 1-Inch Edition, or Ultimate Kit — so check exactly which mods and batteries are included; the core and mods also sell separately.