The available color palette represents the clear difference between Motiv and Oura. The Oura ring is available in 8 sizes, while the Motif ring is available in 7. The first is handy in two different designs, as opposed to the second in one design. The latest Oura Ring comes with a high-tech battery that can last up to seven days, and the Motiv Ring beats with a battery for up to three days. However, both charge quickly, taking about an hour. There is even a warning option to charge with the Oura Ring.