Marc Jacobs Riley Hybrid Silicone Strap Smart Watch This Marc Jacobs Riley Hybrid Silicone Strap Smart Watch (£140, originally £189) syncs with your smartphone, and a few of it's nifty features include discreet notifications, remote music control, and activity tracking. Image Source: marcjacobs.com Marc Jacobs Riley Hybrid Silicone Strap Smart Watch £140 from marcjacobs.com Buy Now