We were pleased with watch until it got wet. It is not water resistant or water proof. Contact with company , LOL. Run around with Amazon and manufacturer that is in China. But it was a lesson learned dealing with Amazon. Hope the bridge stays put as well as the yacht.I bought this smart watch for my tween daughter because she is a little too young for a smart phone of her own, but I wanted to get her something where she could call, text, etc. The watch seems to be perfect for this purpose. I am still working on downloading the app, but so far everything works just fine. Activation of the sim card worked fine as well. I was able to follow the directions online.I am a little concerned about the safety of downloading the app. When I tried the first time, I was prompted by my carrier that it may be a harmful app, so I will check into that. Other than this, I would recommend the product.Absolutely horrible to try and get connected. If u buy this watch, don’t try to connect it to any other network, just get the “SpeedTalk” pre-paid SIM card. I saw in questions that it could connect to AT&T so we tried (because that’s our normal carrier) and spent hours on the phone and multiple visits to the AT&T store. First they said the watch’s IMEI # was registered as a phone, not a watch, so that was the problem. So they applied to change that. Then they finally said it couldn’t work on their network. The worst thing is it’s such an “off-brand” that there no info or support. Once we got the speed talk SIM it finally worked. Not an amazing watch, the battery life dies pretty quick, but other than that it’s ok for a kids “first phone” where they don’t need to do much besides call/text. My son does like it in general. I just wish there was a better option for an entry/kids smart watch in the same price category.Not all the apps in the watch work. I added service to the watch and it doesn’t detect location with the SOS alarm, i can’t call the watch or call through the watch. The only thing I can do with it is Videocall but sometimes it doesn’t work. Look elsewhere. I did add a plan and I didn’t get the cheap one because I wanted to make sure I could be in contact with my kids but no, this was a waste of money.did not want to get son phone just yet, this watch allows him to text & call & video chat me. I can see where he is as well with GPS tracking. You will need to get a SIM chip and start up service with a company of your choice.Let it fully charge like instructions state, it will notify parent by text of low battery which is nice to be able to remind son to charge it.Not sure where to start. The camera doesn’t work. The battery life has a very short life span, 24 hrs is pushing it. I’m lucky if it stays charged a half day. Not a huge fan of the mobile app either. Some of the settings work and others have a mind of it’s own. All in all I’m very disappointed and wouldn’t recommend buying it. Unfortunately I have missed my return window and am stuck with it.I'm very satisfied with the fast shipping. The smartwatch arrived 2days before my son's birthday party. The plan was not disrupted at all! My son likes the gift very much. The classmates who took him to school the next day praised his watch. And the function is also very powerful, most of the functions of the mobile phone have this watch, but the price is cheaper than the mobile phone, why not choose it??! I bought a SIM card from Amazon, and the monthly rent only costs $5. Very cost-effective watches and card, will not worry about children losing, it is very convenient for me and Other family members to communicate with my son.The color is nice and it feels great. My nephew feels official with this watch. My sister can keep track of him with the 4G function and app!