I tested the Ortovox 3 Plus and found it to be very good. Simple to use, takes only one battery, very accurate, light, slim and easy to read and fallow to the victim. Rubber grip is nice for holding, the product is made well.
The case is nice but I think the zipper should go and be Velcro and a little thicker tougher case for protection as well as the straps a bit wider and better comfort.
Overall the unit is superior and a great product.
Would definitely recommend