Good day, matthewchurchwar.
I'm here to offer my help.
Yes, you can use a tablet so you can access your QuickBooks Online account. There are two ways on how we can access it using your tablet. The first one is via QBO Mobile App which you can download and install through Google Play Store.
Another way is through your tablet's browser. It's best if you can use a Chrome browser. You'll want to check this article about QuickBooks Online for mobile devices. This will show you the compatible operating systems and browsers.
In addition, please check this link about mobile app features. There are some limitations to what we can do through the mobile app. This article will guide us and see what are the features available with this version.
I'll be right here if you need more clarification. Just comment anytime on this thread.