Bests & Worsts Reviews from Amazon

I’ve had the 425S for a few years now and love everything about it! The most reliable collar I’ve ever had... So, when I got a new puppy I was excited to try the new 425X. Sad to say I’m very disappointed with its performance. The battery life, vibration strength and remote are all great, however it is not reliable AT ALL. When I was training I noticed a huge inconsistency in my pup’s reactions. I tested it on myself before using it and initially it was fine. Following the first training session I decided to try out the collar on myself again as I didn’t understand why my pup was having such a strong reaction to the V/T function which should only vibrate. What I noticed made me cringe. Each time I pressed a button it would deliver a different action even though it was still on the same setting. I set it to V/T and after pressing the same button a few times instead of a vibration each time, a few times it actually gave off a shock. I set it to 1, then 2 and half the time it would vibrate, then the shock would be appropriate to the setting then out of nowhere it would be an equivalent of a 5-6 level shock. The only button that actually worked consistently and like it was supposed to was the tone button. Im beyond sad that I ever even used this on my pup as based on her reactions I can only imagine she got shocked pretty hard even though I had it set to V/T while training her. If you want a reliable collar - the 425S is great. If however you want to shock your dog for no reason whatsoever, then get the 425X.... Very surprised that there’s no recall on the 425x. Scary that this product is out there.