That may be but "The most obvious difference is that the original ELEMNT is larger than the BOLT. This means it has a larger screen size: 2.7 inches versus 2.2 inches on the BOLT." https://www.sportivecyclist.com/wahoo-elemnt-vs-elemnt-bolt/
True story
And the Elemnt has the second row of LEDs along the side whereas the Bolt only has the row at the top.
@Thuekr started
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That may be but "The most obvious difference is that the original ELEMNT is larger than the BOLT. This means it has a larger screen size: 2.7 inches versus 2.2 inches on the BOLT."
https://www.sportivecyclist.com/wahoo-elemnt-vs-elemnt-bolt/