[Update: John Gruber adds that a new form factor is coming this year too:
“It’s hard to overstate just how big a deal this could be. No mention in Businessweek’s report, though, of the all-new form factor that I’ve heard is coming for this year’s new watches.”
This would mark the first external change since the Apple Watch debuted.]
Bloomberg reports that Apple is planning to release an updated Apple Watch model by the end of this year with built-in cellular connectivity. Bringing cellular connectivity to the Apple Watch has been rumored before but didn’t ship with the last revision which instead focused on GPS.