Heart rate monitor

I'm considering an Apple Watch and am wondering if I could pair it simultaneously with a chest-strap heart rate monitor and wire-free earbuds. I have not been satisfied in the past with watch-mounted optical heart rate monitors (i.e., pulse monitors) and so prefer an external heart rate monitor worn around chest. To make the Apple Watch truly worth the expense, I would need to be able to pair both while I run. Thanks in advance!