Let me first say, I LOVE this watch!!! I bought it for my 5 year old son and he loves it too! He was so excited and couldn't believe he had a "Smartwatch", his words, not mine!! I bought it because he just started Kindergarten, was waiting too long to go to the bathroom and then partially wetting on his way to the bathroom. I wanted to find some way to help him remember to go to the bathroom without embarrassing him at school, hence THIS watch. I love that I can set the watch to vibrate mode and only he knows when his timer was going off. It looks like a big kid watch, so all his friends think its really cool. They don't even know it's a potty watch. It's nice that it automatically restarts the timer over and over until you turn the timer off through program mode. That means that I can set it and forget it and also that his teacher doesn't have to fuss with it. he doesn't even have to take it off to wash his hands because it's water resistant, so the only reason to take it off would be to sleep or charge. We get about 3.5 days, sometimes more, on one charge.While he hasn't completely stopped having accidents, he has gone from 3-4 a day down to 1 a day, and sometimes none. So, I feel that he is on his way back to having no accidents. Now, with that being said, there are a few things you should know.1. While the face of the watch is nice and thin, it is a bit wider than I expected it be, even on a 5 year old. I would say that it's larger than a women's watch face, but not quite as big as a men's.2. Within the first day of wearing it, the face started popping out of the silicon band. I contacted the seller, who immediately responded. He suggested super gluing it to hold it in place and if that didn't work, or if I just didn't want to, he offered to expedite a new one to me right away. Well the glue worked great and a new one wasn't necessary.3. While many say that it's complicated, if you read the directions carefully, you'll find that it's quite easy. The screen is a touch screen and it has a tap and hold programming system. You tap the screen and with each tap you get to a new screen (Time, Battery Strength, Timer Set, and Sound). If the timer is turned on then it's (Timer, Time, Battery Strength, Timer Set, and Sound). Once you reach the screen you want to program, you simply hold your finger on the screen for a second until it changes to program mode. Then you tap it to go through the setting options. Once you see the option you want, you simply hold your finger on it again to select it and switch back out of program mode. Then wait for the screen to go off and do it again, if you want to change another setting.4. While I love vibrate mode, your little one has to be committed to listening to it on their own because chances are you won't hear it. For littler ones, I would recommend using the song mode, so that you will also hear it and can prompt them to go.5. Because it does have a touch screen, there has been occasion where the timer has accidentally gotten turned off. This has happened twice in 2 weeks.6. After the first few days of wearing, my son started complaining that he didn't want to wear it because it was uncomfortable. I tried not putting it on so snuggly, and he's been fine with it since.I just wanted to make you aware of some of the things I didn't know before I bought this watch, but none of these are reason enough for me to not recommend it. I still think it's a great and would buy it again! The benefits far outweigh the cons. Good Luck!!**UPDATE** Within several weeks, our potty watch quit working. It worked fine when I plugged it in one night and didn't work when I unplugged it the next morning. The screen just wouldn't come on at all. I contacted the seller immediately. He told me that I should not leave it plugged in overnight. It only takes 30-60 minutes to fully charge. (From completely dead, mine takes about 60 minutes on a regular charger and 25 on a fast charger). He immediately sent me a replacement watch free of charge and included a nice handwritten note giving me his personal cell number, just in case I needed anything else...stating "I will take care of you!". I have done as he said with the new watch and have had no problems. I only plug it in every 3 days or so, and I set a timer so that I remember to take it off the charger. I would highly recommend this seller. His customer service it wonderful and the product is great too!!!