20mm Nylon Watch Straps are Compatible with
Samsung Galaxy Watch 6 / Watch 5 / Watch 4 40mm/44mm
Samsung Galaxy Watch 5 Pro 45mm
Samsung Galaxy Watch 4 Classic 42mm/46mm
Samsung Galaxy Watch 42mm (NOT for Samsung Galaxy Watch 46mm 2019)
Samsung Galaxy Watch 3 41mm
Samsung Gear S2 Classic (NOT for Samsung Gear S2)
Samsung Gear Sport
Samsung Galaxy Watch Active / Active 2 40mm/44mm
Amazfit GTR 42mm
Amazfit Bip U / U Pro
Amazfit Bip S / S Lite
Amazfit Bip 3 / 3 Pro
Amazfit GTS / GTS 2 / GTS 2e / GTS 2 Mini / GTS 4
Amazfit POP/ POP PRO
Timex Unisex Weekender 38mm
Timex Expedition Scout 40mm
Timex Weekender Chronograph 40mm
Timex Easy Reader 38mm
Timex Weekender 40mm
Citizen Eco-Drive AT0200-05E
Citizen Eco Drive Promaster BN0150-28E
Seiko SARB017
Seiko SNE102 Solar Watch
Fossil Q Commuter Hybrid
Fossil Q Gazer
Moto 360 2nd Gen Men's 42mm
Also suitable for other watches with 20mm lug width

22mm Nylon Watch Straps are Compatible with
Samsung Gear S3 Frontier / Gear S3 Classic
Samsung Galaxy Watch 46mm (NOT fit Samsung Galaxy Watch 42mm)
Samsung Galaxy Watch 3 45mm
Samsung Gear 2 R380 / Gear 2 Neo R381 / Gear 2 Live R382
Amazfit Bip 5
Amazfit Cheetah Pro / Cheetah / Falcon / Stratos
Amazfit GTR 47mm / GTR 2 / GTR 2e / GTR 2e SIM / GTR 3 / GTR 3 Pro / GTR 4
Amazfit Pace / Stratos / Stratos 2 / Stratos 2S / Stratos 3
Fossil Gen 5 Carlyle
Fossil Sport 43mm
Fossil Grant Watch 44mm
Fossil Coachman Watch 45mm
Fossil gen 5e/gen 6
Fossil Q (1st Gen) / Fossil Q Founder 2.0 / Grant / Wander / Crew master Hybrid
Seiko 5 SNZG15
Seiko 5 SPORTS SNZG15J1
Seiko SSB359
Seiko SKX007
LG G Watch W100 / LG G Watch R W110 / LG Watch Urbane W150
Moto 360 2 (2nd Gen, 46mm 2015)
Ticwatch Pro 3/Ticwatch pro/E2/C2/GTX
Also suitable for other watches with 22mm lug width