42-44-45-49mm Alpine Loop Straps for Smart watch Strap for Smart Watch S8 Ulta S8+ Ultra T8 Ultra T800 T800 Pro T800 Ultra X8 Ultra DT NO 1 D800 Ultra T500 T500 Plus T55 T55 Plus FK78 HT89 HT99 W26 W26 Plus HW16 HW22 W16 MC72 MC 72 Pro i7 Pro i7 Plus