The best foldable phone we’ve tested is $500 off for Prime Day — its lowest price ever
The OnePlus Open is on sale for $1,199 at Amazon, if you have a Prime membership. Non-members can still buy the phone for a discounted $1,299, but the Prime price is the lowest we've ever seen the Open go. Plus with some Amazon.com coupons you might be able to get even more money off.