Buy the Anker Power Bank 20,000mAh.

A slim magnet is a nice trick, but a battery that actually gets you through a trip and keeps working next year wins.

What was compared

podoru for MagSafe Power Bank 5000mAh, Ultra-Slim Magnetic Portable Charger | 20W PD Fast ... — $21.99
Anker Power Bank, 20,000mAh Travel Essential, Built-in USB-C Cable(Black) | 3-Port 87W Max... — $59.98

1. Charges a laptop, not just a phone
Anker's 87W across three ports can refill a MacBook, an iPhone, and a Switch at once. Podoru's 20W is built for one phone and stops there, so anyone traveling with more than a handset is stuck.
2. Anker keeps working, podoru quietly dies
Multiple podoru owners report the unit failing after 6 to 8 months with hardware issues, while Anker owners describe units still running fine after 5 plus years. A battery that quits is worth nothing, however thin it was.
3. Four charges before you need an outlet
20000mAh against 5000mAh means Anker can refill a phone roughly four times per charge, Podoru barely covers one. For anything you actually rely on as backup power, that gap is the whole job.
4. The magnetic snap-on is real, just narrow
Podoru's ultra-slim MagSafe stick-on design genuinely wins if all you want is a barely-there top-up clipped to one iPhone. Bring a laptop, a Switch, or an Android and that trick disappears, and we don't think that's most buyers.
5. Yes it costs three times as much. Buy it anyway.
$59.98 against $21.99 stings on the price tag, but you're buying four times the capacity, four times the wattage, and years of reported use instead of months. A cheaper battery that dies mid-trip isn't actually the cheaper choice.