Considering that the Expedition 4 is £20 with postage at the moment (I was so tempted at that price - £7 cheaper than anywhere else, even with a fiver postage, that I bought one), the extra fiver is worth it. Silva, Suunto or Recta (now owned by Suunto) are all solid brands, even the basic ones, but the Expedition 4 has a full base plate with more scale markings, plus holes for marking. Its also the one that Woodlore recommends for their courses https://www.raymears.com/Bushcraft_Product/414-Silva-Expedition-4-Compass-360/ .
People who think that spending pennies on kit that might save your life (and a compass most certainly comes into that category) usually end up regretting it, sometimes fatally. The extra fiver isn't going to break the bank, and although the cheaper one is perfectly fine, if your going to buy one (and you usually do just buy the one), why not go for best you can reasonablly afford.
And a cheap simple guide on navigation is a must - lots out there
People who think that spending pennies on kit that might save your life (and a compass most certainly comes into that category) usually end up regretting it, sometimes fatally. The extra fiver isn't going to break the bank, and although the cheaper one is perfectly fine, if your going to buy one (and you usually do just buy the one), why not go for best you can reasonablly afford.
And a cheap simple guide on navigation is a must - lots out there