If you don’t live close enough to MIGHTYminnow HQ to visit our device lab for testing, there’s a handy alternative: User Agent Switcher. With this nifty Chrome extension you can quickly and easily switch between user-agent strings, meaning you don’t have to have a mobile phone or tablet to do your device testing!
That said, remember: there is no substitute for real hands-on device testing, but User Agent Switcher is a close second.