Looks like a bunch of Moto G5 Plus 64 GB sales today (why only after Prime day!). $239 is the lowest with no ads that I've seen so far today.
Requires promo code from e-mail to get the $239 price. Ad says it is available online but I don't see it available for shipping, so YMMV. Most likely that was a typo and the price is only for in-store purchase.