Here's the Pop next to the iPhone X.
The Pop has an 18,000mAh battery compared to the iPhone X's 2,716mAh battery. That means the Pop's battery is more than six times larger than the iPhone X's. With that in mind, the Pop is actually quite slim — it's surely thinner than six iPhone X phones stacked together.
Energizer says the Pop can hold a 90-hour phone call on a single charge, whereas Apple touts a measly 21 hours for the iPhone X.
The Pop is also good for 100 hours of music playback (the iPhone X gets 60 hours), as well as two days of video playback (iPhone X gets 13 hours). It's not clear if Energizer's claim is based on video stored on the Pop itself, or whether it's streaming video — from the looks of it, it's probably referring to locally stored video.
On standby mode, Energizer says the Pop can last up to 50 days, or about a month and a half. The company doesn't mention what kind of battery life to expect on normal daily usage, but I'd estimate about a week.
You can charge other devices through the Pop's USB-C port, of course.
It's not quite the same as the reverse wireless charging from the Huawei Mate 20 Pro or Samsung's new Galaxy S10 phones, but Energizer says the Pop's USB-C port supports fast charging, so it's probably faster than any wireless charging.
Oddly enough and despite its size, there doesn't appear to be a headphone jack on the Pop. It could have been a great addition, as you'd probably wear down your Bluetooth headphone batteries before you run out of juice on the Pop.
Belts or suspenders are probably recommended, or even required.
Energizer doesn't say how heavy the Pop smartphone is, but I'd speculate that it's much, much heavier than your standard smartphone.
There's no price or release date available for the Pop yet, but rest assured that I will be requesting a review unit, and I will be using it as my primary phone for a while.