One power bank, one secure divot, no more hunting through cables
In the long arc of technological convergence, wearables have remained a stubborn outlier — each manufacturer guarding its own charging ritual while phones and laptops quietly agreed on a common tongue. Belkin's BoostCharge Pro, a $99.99 power bank with a dedicated cradle for Apple Watch, arrives as a small but meaningful attempt to impose order on this fragmented landscape. It will not unify the entire ecosystem, but it signals that the industry is beginning to feel the weight of its own complexity. Sometimes the most consequential innovations are not the ones that reinvent the wheel, but the ones that finally give travelers one less cable to lose.
- Smartwatch charging remains a proprietary nightmare — every brand speaks a different electrical dialect, filling drawers with incompatible magnetic pucks and cables that serve only one master.
- Fast charging has deepened the confusion, with Apple's newer chargers looking nearly identical to older ones yet functioning entirely differently, leaving consumers guessing and occasionally stranded.
- The physical reality of wrist-worn devices — sensors on the skin side, displays on top, no room for a port — means manufacturers have almost no architectural freedom, locking the chaos in place by design.
- Belkin's BoostCharge Pro attempts to collapse the problem into a single 10,000mAh device: one secure watch cradle, one USB-C port, no cable roulette before a 5am departure.
- The product is still on preorder at a premium price, and its real promise may lie less in the device itself than in the competitive pressure it places on rivals to build similar solutions for Samsung, Google, and beyond.
Smartwatches occupy a peculiar corner of the tech world — one where the broader industry's march toward USB-C standardization simply never arrived. Apple, Samsung, Garmin, Fitbit, and a dozen others each maintain their own proprietary charging ecosystems, leaving anyone who owns more than one wearable with a drawer full of magnetic pucks that serve no device but their own.
Belkin's newly announced BoostCharge Pro is a $99.99, 10,000mAh power bank designed to address at least the Apple Watch portion of this chaos. A small divot in the device holds the watch securely while charging it at fast speeds — a detail that matters more than it sounds, since magnetic smartwatch chargers are notoriously prone to losing their connection inside a bag. The power bank also charges second-generation AirPods Pro and any USB-C device at up to 20 watts. It is available for preorder but has not yet shipped.
The reason wearables remain trapped in proprietary charging is largely physical. A USB-C port is too large for a wrist-worn device. Wireless coils present similar constraints. Health sensors occupy the underside of the watch, displays occupy the top, and manufacturers are left with almost no room to standardize. When internal components are redesigned, an entirely new charger often follows — even if the old and new versions look identical from the outside.
Apple's introduction of fast charging with the Series 7 compounded the confusion. The new USB-C charger required a higher-wattage power brick, but Apple stopped including one in the box. Old and new chargers look nearly the same. Even Belkin's own multi-device charging stands may or may not support fast charging depending on the specific watch model — a fact that is easy to miss until the watch is already on your wrist and running low.
For travelers and multi-device users, the current situation is quietly maddening: pack the wrong cable and you either pay inflated airport prices for a replacement or accept a dead watch until you return home. The BoostCharge Pro promises to reduce that anxiety to a single, self-contained device. Whether it delivers remains to be tested, but the more significant signal may be what comes next — competitors building equivalent solutions for other platforms, and an industry slowly acknowledging that proprietary charging chaos has a cost that consumers are no longer willing to absorb quietly.
Smartwatches have become a peculiar island of technological chaos. While phones, tablets, and laptops have largely converged around USB-C charging, wearables remain stubbornly fragmented—each brand clinging to its own proprietary connector. Apple uses one system. Samsung another. Fossil, Fitbit, Garmin, Google, Mobvoi, and a dozen other manufacturers each maintain their own charging ecosystem. The result, for anyone who tests these devices or simply owns more than one watch, is a drawer full of incompatible cables and magnetic pucks that seem to multiply like rabbits.
Belkin has just announced the BoostCharge Pro, a $99.99 power bank that attempts to solve at least part of this mess. The device is a 10,000mAh battery with a small divot designed to securely hold an Apple Watch while charging it at fast speeds. It also charges compatible second-generation AirPods Pro and any USB-C device at up to 20 watts. The power bank is not yet available—only open for preorder—which makes the $99.99 price tag a leap of faith. But for anyone drowning in smartwatch cables, the promise is tantalizing enough to justify the risk.
The reason smartwatches remain trapped in proprietary charging hell comes down to physics and design constraints that smartphones never faced. A standard USB-C connector is simply too large to integrate into a device meant to wrap around a wrist. Wireless charging coils present similar size problems. Beyond that, smartwatches place health sensors on the bottom—the part that touches your skin—and the display on top. This leaves manufacturers almost no real estate for a charging port. When companies redesign their internal components or sensors, they often need an entirely new charger, even if the old and new versions look nearly identical to the untrained eye. Add to this the fact that modern smartwatches demand enormous power for always-on OLED displays, continuous health monitoring, GPS, and cellular connectivity, and fast charging becomes not a luxury but a practical necessity.
Apple introduced fast charging with the Series 7 Apple Watch, but doing so required a new USB-C charger and a power brick capable of delivering more than five watts. The older power bricks that came with previous devices simply will not work. Apple, citing e-waste concerns, stopped including the new power brick with fast-charging-compatible watches. The result is a minefield of confusion. The old and new chargers look nearly identical. Third-party charging stands from reputable makers like Belkin sometimes support fast charging and sometimes do not. Even Belkin's own 3-in-1 charging stand, the kind you might ask for as a gift, may or may not actually enable fast charging for your specific watch model. The magnetic wireless pucks used by smartwatch chargers are also notoriously unreliable in transit—throw a phone into a backpack with a power bank and it will charge. Try the same with a smartwatch and the magnetic connection may simply fail to hold.
For someone who travels with multiple wearables or who simply wants to leave home confident they have the right charger, the current state of smartwatch charging is maddening. Pack the wrong cable and you face a choice: buy a new charger at inflated prices or accept that your watch will remain dead until you return home. The Belkin BoostCharge Pro promises to collapse this complexity into a single device. One power bank, one secure charging divot for the watch, one USB-C port for everything else. No more hunting through a spaghetti tangle of labeled cables in the dark before an early morning run. No more guessing whether you grabbed the right charger for the right device.
Whether the BoostCharge Pro will actually deliver on this promise remains to be seen. The device has not yet shipped, and anyone who has spent years testing wearables has learned to temper expectations. But the mere fact that Belkin is attempting to solve this problem—and the near certainty that competitors will follow with cheaper versions for Samsung, Google, and other smartwatch brands—suggests that the era of pure proprietary charging chaos may finally be ending. For now, the question is whether this little divot in a power bank can finally make smartwatch charging feel as simple and reliable as charging a phone.
Notable Quotes
Every standardized connector is essentially too large to work with a wearable that would be small enough to comfortably wear— Designer Gadi Amit, NewDealDesign
It does not help that the old and new chargers look pretty similar— The author's spouse
The Hearth Conversation Another angle on the story
Why does a smartwatch charger cost so much more to replace than a phone charger?
It's not really about greed—it's about the constraints of the form factor. A USB-C port is physically too large to fit on a device you're wearing on your wrist. The sensors that measure your heart rate have to sit on the back, the screen on the front. There's almost nowhere left to put a charging mechanism.
But couldn't they just use wireless charging like some phones do?
Wireless charging coils are also too bulky for a watch. And here's the thing—when a company changes its internal sensors or components, even slightly, the charging system often has to change too. So you end up with a new charger that looks almost identical to the old one but doesn't actually work with it.
That sounds intentional, like planned obsolescence.
I don't think it is, honestly. It's more that the engineering constraints are real, and there's no standard the way there is for phones. Every manufacturer is solving the same problem in isolation, which means every solution is different.
So what makes the Belkin power bank different?
It's not trying to be a universal charger. It's just a power bank with a secure divot where you can hold your Apple Watch while it charges. You're not carrying five different cables anymore—you're carrying one power bank that handles your watch and your phone.
Is $99.99 reasonable for that?
For someone who travels with wearables or owns multiple watches, probably yes. For someone with one watch and a drawer full of cables they never use, it might feel expensive. But the real value is in simplicity and peace of mind—knowing you have the right charger and it will actually work.
Will other companies copy this?
Almost certainly. Once Belkin proves the concept works, you'll see cheaper versions for Samsung watches, Google watches, Fossil watches. That's when the real change happens—when the market forces manufacturers to think about charging as a user problem, not just a technical specification.