A pocket-size battery pack priced at $19.99 is getting a lot of attention for solving a common travel headache. It combines a magnetic Apple Watch charger with a built-in USB-C plug for phones, which means you can top up both devices without the need to lug around separate bricks and cables. It is a compact 2,000mAh power bank, TSA-friendly, ready to toss into your bag for quick, on-the-go boosts rather than all-day charging.
What This $20 2-in-1 Charger Delivers in Daily Use
The appeal is putting your Apple Watch and phone on the same device. A magnetic pad on one end snaps onto any Apple Watch, while the other end features a USB-C male plug that connects to iPhone 15 and later models as well as the majority of new Android phones. No included wires and no individual Apple Watch puck to keep track of.
Key charging features and connectors
- Magnetic Apple Watch charging pad
- Built-in USB-C male plug for iPhone 15 and most Android phones
- No separate cables or Apple Watch puck required
- 2,000mAh cell with protection against overcharging, overheating, and short circuits
- TSA-friendly, pocketable design for quick top-ups on the go
- Sale price of $19.99, down from an MSRP of $59.95
It’s worth noting that charging your wrist-worn wearable this way still yields hours of use on the device. It is a lifeline for using on the go: small enough to fit in your pocket or tiny handbag and straightforward enough to use on the fly in an Uber or at the airport. The present sale lowers the MSRP from $59.95 to $19.99, making it a no-brainer.
How Much Power Can You Actually Expect From 2,000mAh?
With a 2,000mAh cell, you should expect a top-up rather than a full refuel. In practice, most USB-C phones with 4,000–5,000mAh batteries get a 20–30% boost, which is enough to power you through a commute or a night out, or add a few hours to GPS usage or photo capture.
Real-world boosts for phones and Apple Watch
The story is more hopeful for Apple Watch owners. The pack’s 7.4Wh of energy is equal to about two full charges in real-world use, accounting for conversion waste and the inefficiency of magnetic charging. Those calculations align with teardowns and manufacturer-claimed battery sizes, which have ranged from about 1.1–2.2Wh over the last few Apple Watches, indicating that the claim of two complete refills is reasonable, and smaller models will get a few more partial top-offs.
It’s also a good fail-safe for long days when an always-on display, heavy workout tracking, or sudden cellular use consume more power than you hope.
USB-C standard, travel rules, and smart safety features
The built-in USB-C plug is the other notable update. Apple has adopted USB-C due to the European Union’s regulation on standard charging. The iPhone 15 uses USB-C just like its Android counterparts that have used USB-C for a long time. USB-C is the current standard on shipping devices and offers a more secure design with acceptable power and data flow.
For users, that consolidation means fewer cables to carry and a better chance that a friend’s charger will work in a pinch. A charger like this taps directly into that convenience by skipping the cable entirely.
Air travel with batteries is not an issue at this size. Transportation authorities allow lithium-ion batteries under 100Wh in a carry-on bag; this unit sits around 7–8Wh, which is far below the limit. The small form factor is also beneficial at conferences, theme parks, or trailheads, where every ounce counts and fiddly cables are a hassle to dig out.
When in crowded bags and hot cars, smart charging protections are a necessity. Overcurrent and temperature safeguards are not just marketing boxes to check; they help prevent premature cell degradation and protect sensitive devices like wearables while charging.
Larger 10,000mAh and 20,000mAh banks will provide several phone charges, but they are heavier, reliant on cables, and do not have a dedicated Apple Watch charger. Comparable Apple Watch–compatible solutions from well-known brands would cost several times more, and many would also make you buy the watch puck. This $20 unit prioritizes everyday convenience at minimal expense.
If you carry an Apple Watch and a USB-C phone, this is an excellent product with the right combination of a magnetic watch pad, a built-in USB-C plug, and a small but useful 2,000mAh battery. It is unlikely to replace your primary power bank, but it can save your day: twice for the watch and just enough for the phone, without sacrificing your wallet or bag space.