iPhone 5S keeps disconnecting from WiFi?

[anomynous]

So I bought an iPhone 5s a few days ago. On the first night I got it, it kept disconnecting until about 15 hours later when I came back home. Last night, I had the same problem and I couldn't get anything done! My brother's iPhone 5s, which he got it as the same day as me, had the same problem. So did my mom's iPhone 4s... and my old Sony Ericsson XPeria Play... I reset the network settings but it was the same... Help? WiFi works perfectly fine on my tablet and laptop though...

[Adam]

There is a chance that you'll need to get a booster for your Wifi. Your tablet and laptop are able to connect to the wifi from further distances compared to cellphones. See how much the wifi reaches out in your house/apartment. If that doesn't work then call your wifi provider. This is the wifi's problem not your phone's.