Not quite. It holds water like a bong, but it's closer to a hand pipe in size, and many have the bowl built into the glass.

Which is easiest to clean?

A hand pipe, since there's no water chamber. Between the other two, a bong is easier: the bowl and downstem come out and a brush fits in the openings. A bubbler is often one piece, so you soak it instead.

Which is easiest to carry?

A hand pipe or a chillum. There's no water to spill and nothing to come loose. All hand pipes

Bubbler, bong or hand pipe

A hand pipe holds no water. A bubbler holds a little, in a small chamber built into the pipe. A bong holds the most, and its bowl comes out.

	Hand pipe	Bubbler	Bong
Water	none	a little	the most
The bowl	part of the pipe	often part of the pipe	comes out
Sizes we have	3 to 8 in long	5.5 to 8 in tall or 5 to 8 in long	5 to 18.5 in tall
Prices	$6.28 to $62.99	$21.99 to $69.99	$23.99 to $129.95
How many we have	71	17	70
Carrying it	small, no water to spill	small, but there's water in it	mostly stays put
Cleaning	nothing to reach into	often one piece, so you soak it	the bowl and downstem come out

Hand pipes

The simplest of the three: a bowl at one end, a mouthpiece at the other, and a small hole on the side called the carb. Spoon pipes are the classic shape. Sherlocks curve down like an old tobacco pipe. A glass hand pipe is all one piece. A silicone one has a separate bowl, and it comes in the box.

All hand pipes

Bubblers

A bubbler is a hand pipe with water in it. It's bigger than a spoon pipe and smaller than most bongs. Ours are 5.5 to 8 in tall or 5 to 8 in long. Many have the bowl built into the glass, so there's no bowl or downstem to buy or break.

You'll see three shapes in the names:

Hammer: shaped like a hammer, so it sits on a table without rolling. We have 3 hammers.
Sherlock: a hammer bent into an S, like the pipe Sherlock Holmes is drawn with. We have 2 sherlocks.
Sidecar: the mouthpiece comes off the side of the water chamber instead of the top. It's made that way so water doesn't splash up into the mouthpiece, which can happen with the other two. We have 1 sidecar.

5" Solid Color Hammer Bubbler w/ Double Maria Neck $25.99
5.5" Element Fume Stand Up Bubbler - Made in USA $57.49
5.5" Dual Fume Accent Flat Mouth Maria Neck Sherlock Bubbler $25.99
6" Mugsy Bubbler $26.99

All bubblers

Bongs

A bong is the biggest of the three. It has a water chamber, a neck, and a joint the bowl sits in. Because the bowl comes out, you can replace it or swap in a different one, as long as the new one fits the joint. The Parts Fit Guide shows what fits what.

All bongs (you can pick a height there), or just the small ones.

Chillums

A chillum is a straight pipe with the bowl at one end, smaller than a spoon pipe. One-hitters are the smallest. Chillums and one-hitters

What this guide doesn't cover

What the water does to the smoke, and how to use each one.

Questions

Is a bubbler a bong?: Not quite. It holds water like a bong, but it's closer to a hand pipe in size, and many have the bowl built into the glass.
Which is easiest to clean?: A hand pipe, since there's no water chamber. Between the other two, a bong is easier: the bowl and downstem come out and a brush fits in the openings. A bubbler is often one piece, so you soak it instead.
Which is easiest to carry?: A hand pipe or a chillum. There's no water to spill and nothing to come loose. All hand pipes

Sources

The carrying and cleaning rows: Vessel, which also puts bubblers ahead for carrying and bongs ahead for cleaning. The three bubbler shapes: Fat Buddha Glass.