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With the rise in popularity of smartwatches and fitness devices I'd be very hard-pressed to see an armband coming anytime soon.
 
When are we ever going to see Fitness Armband for iPhone X from Belkin as they are very slow.

Since you're requesting a specific company such as Belkin, perhaps contact them directly for any product inquires. You're admitting they are slow, so perhaps they do have a product coming out eventually, as the iPhone X has only been available for a month.
 
I cringe every time I see a phone armband. my veins already pop out enough I dont need to cut off the circulation anymore.
might be good for Blood flow restriction training though. for one arm
 
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