When you're shopping for a new Apple Watch band, it is tempting to think that "close enough" is fine. After all, does 1 millimeter really make a difference? The short answer is: yes, it does. In the world of precision-milled accessories, 1mm is the difference between a secure lock and a shattered screen.
Apple Watch has come in various sizes over the years: 38mm, 40mm, 41mm, 42mm, 44mm, 45mm, 46mm and the 49mm Ultra. Using a band meant for a 44mm Apple Watch on a 45mm device (or vice versa) creates serious issues.
First, there is the Lug Overhang vs. Gap. If you use a larger band on a smaller Apple Watch, the metal lugs will protrude past the case, snagging on clothing and potentially causing the band to detach from the Apple Watch. Conversely, a smaller band on a larger Apple Watch leaves a visible gap. This isn't just an aesthetic fail; it exposes the spring mechanism to dirt and moisture, leading to corrosion.
Secondly, is Sensor Health. Your Apple Watch relies on sitting flush against your skin to measure heart rate and blood oxygen. A band that is the wrong size often sits at a weird angle, lifting the sensors off your wrist. This results in spotty data - defeating one of the main reasons you got your Apple Watch.
Our connectors are designed to fit each Apple Watch size down to the micron. We don't do "one size fits all" when it comes to Apple Watch sizes. We do this to ensure that when you connect your band (or case) to your Apple Watch, it feels like it was born there.
Don't risk your Apple Watch on a misfit connector. Always check the back of your Apple Watch case for your size and buy your band or case for your exact Apple Watch size.
