HITZEE Straps Compatible with Samsung Watch 4 Strap 40mm 44mm Galaxy Watch 5 Strap, 20mm Silicone Magnetic Loop Sports Band for Galaxy Watch 4 Classic & Watch 5 Pro, Grey Orange: Amazon.co.uk:
Samsung Galaxy Watch 4 (44mm) specs - PhoneArena
Kitway Silicone Strap Compatible with Samsung Galaxy Watch 4 40mm 44mm, Galaxy Watch 4 Classic, Galaxy Watch 5 40mm 44mm, Galaxy Watch 5 pro 45mm, Sport Straps No Gap Wristband for Men
For Samsung Galaxy Watch 4 44mm 40mm/Classic 42mm 46mm Sport Silicone Strap Band | eBay