20mm Band Width:
for Samsung Galaxy Watch 42 mm
for Samsung Galaxy Watch Active / Active 2
for Samsung Gear S2 Classic
for Samsung Gear Sport
for Moto 360 2nd Gen Men's 42 mm
for Fossil Q Gazer
for Huawei Watch 2 / watch 2 pro
for Pebble Time Round Large
for Withings Steel HR 40 mm
for Huami Amazfit BIP
for Ticwatch 2 / Ticwatch E
for Garmin Vivoactive 3 / vivoactive 3 music
For samsung galaxy watch 3 41mm R850
And other traditional or Smart Watches with standard"20mm"lug width.
22mm Band Width:
for Samsung Galaxy Watch 46 mm
for Samsung Galaxy Watch 3 45 mm
for Samsung Gear S3 Classic
for Samsung Gear S3 Frontier
for Samsung Gear 2 R380
for Samsung Gear 2 Neo R381
for Samsung Live R382
And other traditional or Smart Watches with standard"22mm"lug width