Self Employed Expensive Equipment

Hello,

I've been a self-employed professional freelance product (app/website) designer for around 6 years now. I work from home full-time and in the past have periodically upgraded my Macbook pro. This year I was considering investing in some even more professional equipment. 

What I was looking at was the Apple XDR Pro Display which costs around $5,000. This would open up some more options and help my workflow, but I'm wondering how deductible it is. The most I've splurged on equipment is about $2,400.

Thanks for any info!