Such a question would most likely be considered a request for a product recommendation and closed as off-topic:
Requests for product, service, or learning material recommendations are considered off-topic on serverfault.com because they attract low quality, opinionated and spam answers and the answers become obsolete quickly. Instead, describe the business problem you are working on, the research you have done, and the steps taken so far to solve it.
We expect a professional to be able to find the product specs and a feature comparison is also an exercise in "spot the differences" that doesn't take a rocket scientist and would make a low quality question.
In general we prefer questions that show that you already did some background research and which allow objective answers and a much better style of question would be:
What to look for in cable tester?
My current tester is a $10,- unit that is only useful to determine a if a pair in patch cable is broken or not.
I have seen testers that cost an arm and a leg but I don't really know what features are gimmicks and what should I really care about?
- Do I really want to know the impedance and cross-talk numbers?
- How useful and reliable is a distance measurement to a cable fault?
- Should I only care how much bandwidth a cable can support?
- Some tools specifically mention IPv6 support, what has IPv4 vs IPv6 to do with cable testing?