I really want a new bike computer that can be wireless, do cadence and heart monitor. Other things are nice but these are the essentials.

I currently have a Blackburn Delphi 5.0 but is not that reliable in cadence and the heart monitor is vulnerable to interference. I was thinking about buying an Ant+ computer when I noticed the BLE (low energy Bluetooth).

Does anyone have any preference over the other?

Thanks in advance.
David

What cycle computer head unit supports Blue Tooth?

A few cycle computers support ANT+. The Garmin GPS units support ANT+ (I'd argue that such GPS units are something more than a cycle computer).

As far as I understand, the blue tooth transmitters are mostly intended to transmit to smart phones (since the phones can use blue tooth). I believe there's one smart phone that supports ANT+ but others would require an ANT+ receiver (which is an extra cost).

I suspect that BLE computers will become more common in the future, in part because ANT+ is owned by Garmin. But you'll have to wait.