I bought this one a few months ago when it was £50. https://www.argos.co.uk/product/2998361?clickSR=slp:term:instant air fryer:2:71:1
It's on the boat but only for use in the marina, left in the car boot when we go out (batteries, solar and inverter are not up to it). I bought something similar for home use.
Observations...
Chicken thighs seem to work better than legs. I cook them upside down for about 10 minutes then right way up for about 15 minutes. The crispy skin is far better than in my fan oven at home.
Seasoned potato wedges work well. I par boil for 5 minutes, leave in the hot water for another 5, drain and leave a few minutes to dry off. Stick into air fryer basket, bit if oil, bit of seasoning, shake all about, cook on full with a shake every 5 minutes until they look good enough to eat.
Occasionally cook oven chips but not that fussed.
Very good for heating up pies and pasties etc. Far better than the microwave!
Probably my favourite use is homemade bread rolls. The c.4 litre size is perfect for 4 bread rolls made with about 440g of dough (275g flour, 165g water, optionally about 30g of seeds). Mixed up (NOT kneaded) before bedtime using just one third of a teaspoon of yeast. Leave overnight. In the morning do a quick one minute knead to knock CO2 out then divide into 4 and place on a non-stick sheet in the basket, cover and leave to double in size. They join together as 4 batch rolls but separate easily after cooling. After trial and error I now cook for about 16 minutes at 180 then remove, peel off the non stick and put back upside down for 5 minutes to ensure the bottom is cooked. Lovely rolls and far more economical than doing in an electric oven.