They are similar in many ways, but the differences are important.
1) The remotes are not interchangeable.
⭐Legacy remote - is only compatible with home Original & Plus drives manufactured before June28th, 2024
♾️Universal remote - is compatible with all "App Controlled" Devices. See: How to identify the new app controlled drive
Note: Chase is only compatible with the Universal remote regardless of when it was shipped.
2) The remotes function a little differently
⭐Legacy remote has a pink dog on the label
♾️ Universal remote has a white dog on the label
3) Inside the remotes, the main difference is the battery orientation.
See: Check the ⭐ Legacy Remote Battery
See: Check the ♾️ Universal Remote Battery