I have a new Samsung Watch 4 Classic and yes it is a 20mm watch. But third-party 20mm straps look too flimsy and downright ugly on the large 46mm Watch4. These 22mm bands actually fit and look way better than the 20mm bands. However, you will need to order a set of 20mm quick release pins (I bought a set of 10). for $6.99). Remove the 22mm pin and insert a 20mm silicone soft enough to push into the watch (see image). I don't recommend trying to trim the edges by 1mm, I've tried this and it won't work. That is unnecessary. I have other straps for my 22mm fitbit but the silicone is too hard and won't fit in 20mm so these straps are perfect and a great price for 3. Need olive color though.
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