True Qi Wireless Charging

While the Apple Watch charges wirelessly, it doesn’t actually use the Qi standard. Instead, the Apple Watch has a proprietary offshoot of the Qi standard — which ultimately means it’s not always compatible with Qi-based chargers and accessories. We expect that to change with the Apple Watch Series 5.

That’s primarily because Apple is rumored to add two-way wireless charging to its 2019 iPhones. Being able to charge an Apple Watch with an iPhone would probably require the Apple Watch to switch to standard Qi charging. That could also mean that the device will be compatible with a wider range of wireless chargers going forward.