Either use a cooking spray and lightly spray the potatoes from all sides. Or, rub some oil all over the potatoes and place them in the frying basket.
Set the air fryer at 400°F (200°F) for 30 minutes. After 20 minutes, check the potatoes, if the skin is browned and crispy then using tongs or a fork carefully flip them on the other side and continue cooking.
After 30 minutes, using a knife or a fork check if the potatoes are baked and soft. If not, then set the timer to 10 more minutes to cook further.
Don't forget the oil! This will help the skin crisp up, and make sure that you're using oil with high smoking point such as canola oil, corn oil, sunflower oil, and avocado oil.
If you overcrowd your air fryer, then your potatoes might not crisp well. So always make sure that there's at least 1 inch between the potatoes.
If your potatoes are quite large, then you might need more time for them to be perfectly baked. After 30 minutes of air frying, check the potatoes with a fork or a knife and see if you need to cook them for longer.
If you like eating crispy potato skins (I do!), you can add flavorings after spraying the oil. Season with sea salt flakes, ground black pepper, dried garlic, dried onion, smoked paprika, you name it!
There are 5 WW SmartPoints per Air fryer baked potato on the Weight Watchers freestyle plan.