Which one is better for making adult hats?

The Kingsize. Its 46 needles give a circular knit of about 13.8 in, close to an adult head size. The Professional tops out around 6 in across, so adult hats need panels and seaming.

Can the Professional knit a sweater?

Only in small pieces. Flat knitting is limited to about 6–8 in wide, so you would knit panels and seam them. The Kingsize knits flat up to about 17.7 in and 43 stitches, which suits full sweater pieces.

Is the Kingsize worth the extra $50?

Yes if you want adult hats, blankets or sweaters without seaming. If you mainly make baby hats, socks and small toys, the Professional does that for $116.54 at eBay as of November 4, 2026.

Which is easier to store?

The Professional. It weighs about 1.19 kg and measures roughly 9 x 9.75 x 6 in. The Kingsize weighs about 3 kg and needs more shelf and table space.

Do both take the same yarn?

Mostly. The Kingsize takes US 6–11 (4–8 mm) yarn. The Professional takes 3.5–8 mm, DK to Super Bulky, so it handles slightly thinner yarn at the low end.

Both are addi machines with plastic bodies and metal needles, and both include a row counter. The Professional ships with 5 replacement needles, which helps when a needle breaks. No long-term durability data is available for either.

addi Express Kingsize Knitting Machine vs addi Express Professional Knitting Machine

Buy the Kingsize if you want to knit adult hats, blankets and sweaters in one piece. Buy the Professional if you make small items like baby hats, socks, mittens and toy parts, or if you want a lighter machine. The Kingsize is $167.00 at Amazon as of November 4, 2026; the Professional is $116.54 at eBay as of the same date.

Today the addi Express Professional Knitting Machine costs $50.46 less at its best price.

Ask our shopping agent

It checks today's price at every store, compares the alternatives and answers in about a minute.