I had a Neko Health scan yesterday.
It takes 1 hour including heart and circulation checks, full skin check (a body scanner takes 2,000 photos), blood tests, results talked through with a doctor, all within the hour, and full results/profile with recommendations for any areas to work on. It costs £299, which feels very surprising vs how thorough it is.
It seems more comprehensive and more sophisticated than scans from the big health insurance firms, and 1/3 the cost.
I would highly recommend.