People use both words for the same thing. In this industry they are two different products, and picking wrongly is the usual reason someone is disappointed.
The one question
Does a passing driver need to **read** who you are, or just **notice** that something is here?
Read: buy a blimp. It has two large flat printed sides.
Notice: buy a sphere. It is round, it moves, and it costs a fraction as much.
That is genuinely the whole decision for most buyers.
Side by side
| Sphere | Blimp | |
|---|---|---|
| Shape | round | elongated with fins |
| Printed sides | curved, distorts | two flat panels |
| Entry price | $301 (4.5 ft) | $684 (10 ft) |
| Common size | 5.5 ft at $351 | 13 ft at $975 |
| Helium, common size | 113 cu ft | 170 cu ft |
| Behaviour in wind | pushes | weathervanes into it |
The wind difference is real
A blimp has fins. On a tether it turns nose-into-wind and stays there, presenting its narrow profile to a gust.
A sphere has no such behaviour; it simply pushes against the line. In practice the blimp rides more steadily, which matters for how it looks on a breezy afternoon.
Neither is exempt from the rule: over 25 miles per hour forecast, bring it in.
Hot-air balloon shapes, the third option
The classic hot-air silhouette, filled with helium. From $780 for a 9.5-foot up to $2,310 for a 17.5-foot with a decorative band.
People pick these when they want something recognisable and friendly rather than obviously commercial. Community events and family businesses choose them more than dealerships do.
Ask for a quote. Call 1-800-791-1445 or email sales@arizonaballoon.com and tell us the size and whether you want it printed.
More at customshapedballoons.com.