For Apple Pencil 1 2 Stylus Pen Touch iPad Pro Air 2 3 Mini 4 Stylus Pen for Samsung Huawei Tablet iOS/Android Mobile Phone

Analysis

1. Has a well-defined audience
2. Solves the problem of precision and low-quality art
3. Can be gifted
4. Market validated
5. Influencers marketing is an option, there is a lot of digital artists in YT