Are you using the Whitelist option on Bangle.js? That'll be your problem.
Is there some way to display which devices are currently connected to Bangle.js?
No, but only one device can be connected at a time. And with new Android there's usually address randomisation so the MAC address of the phone changes each time and so whitelisting on the Bangle isn't much use.
Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
Are you using the Whitelist option on Bangle.js? That'll be your problem.
No, but only one device can be connected at a time. And with new Android there's usually address randomisation so the MAC address of the phone changes each time and so whitelisting on the Bangle isn't much use.