In terms of ASA features, there's no limitation for HoloLens 1. Of course, it's older hardware so some operations (save and query) could be somewhat slower than HoloLens 2.
Are there any limitations to using Azure Spatial Anchors with a Hololens 1 vs a Hololens 2?
Fraser, Sarah
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I will be using ASA for a project and readily have access to a Hololens 1. Are there any features that do not work with certain Hololens' versions? As if needed, I could attempt to gain access to a Hololens 2.
There are also a few Microsoft tutorials aimed at Hololens 2, for example: https://learn.microsoft.com/en-us/windows/mixed-reality/develop/unity/tutorials/mr-learning-asa-01 .Could they be successfully run on a Hololens 1?