1. Soprano
   1. 13''-21''
      1. G-C-E-A
         1. The most popular, traditional and well-known, the smallest-sized ukulele.
            1. Kala KA-15S
2. Concert
   1. 15''-23''
      1. G-C-E-A
         1. It also has that traditional-sounding tone, but it has a noticeably deeper, fuller and louder sound.
            1. Cordoba 15CM
3. Tenor
   1. 17''-30''
      1. G-C-E-A
         1. Bigger than both soprano and concert ones, it offer an even deeper and fuller sound.
            1. Luna Tattoo Mahogany
4. Baritone
   1. 19''-30''
      1. D-G-B-E
         1. Closest to the standard guitar in size, baritone ukuleles are tuned the same way as the highest four strings on a guitar.
            1. Kala KA-B
5. Scale-Length:
6. Tuning:
7. The most classic and traditional ukulele options, recommend for beginners.
8. More suitable for advanced learners and professionals.