These days, it’s not uncommon to see phones coming with roughly 4,000 mAh or 5,000 mAh batteries. While battery life might vary from device to device, you can get a solid day of use out of a single charge with most phones. Most smartphone makers try to hit a balance between battery size and actual smartphone size, but if you don’t care at all about the latter, the latest phone from Unihertz might be for you.