Help me decide

I am currently doing my research on which enduro watch to buy, this year I am running more trial runs and I would like to know in your opinion which watch is the better value. I am currently using the Instinct 1 with the HRM Pro +. Also is it worth it to buy it renewed from Amazon to save the 89$?

I am currently doing my research on which enduro watch to buy, this year I am running more trial runs and I would like to know in your opinion which watch is the better value. I am currently using the Instinct 1 with the HRM Pro +. Also is it worth it to buy it renewed from Amazon to save the 89$?