Size: The Cordoba 25CK is a concert ukulele, which is a smaller size than the Ohana TK100G tenor ukulele. Concert ukuleles typically have a brighter and more focused sound, while tenor ukuleles have a warmer and more resonant sound.
Body: The Cordoba 25CK has a mahogany body, while the Ohana TK100G has a spruce top with mahogany back and sides. Mahogany is a warm, rich wood that produces a well-balanced sound, while spruce is a brighter, more resonant wood that produces a clear, articulate sound.
Neck: The Cordoba 25CK has a nato neck, while the Ohana TK100G has a mahogany neck. Nato is a strong, stable wood that is commonly used in ukuleles, while mahogany is a warm, rich wood that is also commonly used in ukuleles.
Fretboard: The Cordoba 25CK has a rosewood fretboard, while the Ohana TK100G has a rosewood fingerboard. Rosewood is a dense, durable wood that produces a clear, bright sound.
Tuners: The Cordoba 25CK has open-back tuners, while the Ohana TK100G has geared tuners. Open-back tuners are less precise than geared tuners, but they are easier to use and less likely to break.
Strings: The Cordoba 25CK comes with Aquila strings, while the Ohana TK100G comes with Worth strings. Both Aquila and Worth are well-respected brands of ukulele strings, and they offer different tonal qualities. Aquila strings are brighter and more lively, while Worth strings are warmer and more mellow.
Overall: The Cordoba 25CK is a well-made, affordable concert ukulele that is perfect for beginners or casual players. The Ohana TK100G is a step-up ukulele that offers a richer, more resonant sound and more features, such as geared tuners and a bone nut and saddle. Ultimately, the best choice between these two ukuleles depends on your individual preferences and playing needs.