You're in electronics, a very tough brand whereas you need to build a loyal audience/following. This is done via campaigns, etc.. (branding... story, etc...) What is any different from you and what I can find anywhere else, aside from having another store in that niche? Running ads alone will not be enough. I like to reference "William Painter" sunglasses as an example. They are in an EXTREMELY tough market, which meant they needed EXTREMELY CREATIVE branding and storytelling (not just running IG and facebook ads) to penetrate the market faster. Because at your rate, the reality is... you'll be deep sea diving for sales if you simply expect anything less. Your site isn't bad, but nothing stands out or really brings it together. It basically comes across as a site trying to sell watches, and electronics... nothing more (i.e.., dropshipping). Maybe focus your attention on one flagship item and run a campaign centered around that.
Also, your copy isn't too great... the whole "they can do more than tell time..." paragraph is talking to 80+ year olds. Everyone knows what a smart watch can do... it almost comes across as "seriously?" ...and thats the only copy on your front page, nothing else. I think the site/branding needs more work if you plan to successfully hit your mark in this niche.
