JusArt
JusArt Water Brush Pens (6-Pack)
Best for: Urban sketchers and water-soluble pencil users who paint on the go

SAKURA
A pocket watercolor kit with 24 paint cakes, a 9 mL water brush, a plastic mixing palette and a dabbing sponge, made for painting on the go.
Best for: Painters who want a pocket watercolor kit to paint anywhere they go
The Sakura Koi Pocket Field Sketch Kit packs 24 watercolor cakes, a water brush, a plastic mixing palette and a dabbing sponge into one kit. Sakura pitches it for creating on the go.
The key part is the 9 ml water brush with a medium tip. Sakura says it lets you transport and store water, so you do not need a separate jar. With water brushes in general, a gentle squeeze wets the tip.
Based on the manufacturer's Amazon listing.
The barrel stores water and feeds it to the medium tip, so you can paint anywhere without a water cup.
24 vibrant, assorted watercolor cakes, ready to use with a wet brush.
A plastic palette in the kit gives you space to mix colors before you paint.
Sakura includes a dabbing sponge for artistic effects; it is also handy for blotting the brush.
Paint, brush, palette and sponge come together, which Sakura describes as a portable watercolor set.
Look elsewhere if: you want more colors and larger pans. The ARTISTRO 48 Watercolor Paint Set has 48 colors in XL pans.
Sakura Koi Pocket Field Sketch Kit (24)
Choose it for: Painting on the go
Winsor & Newton Cotman 24 Half Pans
Choose it for: 24 named half pans and a No. 3 brush
ARTISTRO 48 Watercolor Paint Set
Choose it for: The most colors
JusArt
Best for: Urban sketchers and water-soluble pencil users who paint on the go
ABEIER
Best for: Beginners and students trying gouache on watercolor paper or canvas
DOODLE HOG
Best for: Beginners, letterers and illustrators who blend with water brushes
Soucolor
Best for: Painters of all levels working in watercolor, acrylic or mixed media