The Oppo Find N6 claims to have solved the biggest issues for foldables – it has made the crease basically invisible. Okay, that’s not the biggest issue facing foldables, but it is certainly a deal breaker for many. And it’s not like the Find N5 had major problems in other categories. That said, the N6 brings several important upgrades to the camera and battery.Oppo opted to increase the battery size to 6,000mAh (up from 5,600mAh) instead of slimming down the phone. That means that the N6 has the same thickness (4.2mm opened, 8.9mm closed) and weight (225g vs. 229g) as the N5. Again,...