When an OM5 is connected to Mimo app you get slow, medium and fast under follow speed yet, when you connect an OM4 you only get slow or fast?
Why when will we see 4K HDR/Dolby Vision?

Hello, there. Sorry for any confusion. When using DJI OM 4 / OM 4 SE / Osmo Mobile 3 with an iPhone 12 series phone, you can use the “Auto HDR10” function in DJI Mimo either.
The “Auto HDR10” function is supported on a software basis and is not related to the gimbal hardware. It can be used as long as the phone attached to the gimbal is an iPhone 12 series product.

DJI Wanda Posted at 10-1 23:27
Hello, there. Sorry for any confusion. When using DJI OM 4 / OM 4 SE / Osmo Mobile 3 with an iPhone 12 series phone, you can use the “Auto HDR10” function in DJI Mimo either.
The “Auto HDR10” function is supported on a software basis and is not related to the gimbal hardware. It can be used as long as the phone attached to the gimbal is an iPhone 12 series product.

HDR10 is NOT Dolby Vision

Hello, there. Sorry for not clarifying. Dolby Vision or HDR10 is not a specific function of DJI OM5. It is more like a function on DJI Mimo App. For now, DJI Mimo App has supported HDR10 video record (only apply on iPhone 12 series or above), which is actually the Dolby version promoted by Apple.
About how to understand the relations between HDR10 and Dolby Vision, please refer to the information below：
1）iPhone 12 Series publicizes Dolby Vision as Dolby HDR. Please refer to this link: https://support.apple.com/zh-cn/HT211950
2）It is denominated as "HDR Video" in the Camera Setting of iPhone, so it is shown as "HDR10" in DJI Mimo.
3）The HDR 10 function of DJI Mimo App is realized by utilizing the interface of iPhone.
Please kindly know that.