HD07 vs HD16 vs HD17 vs HD18: Which Supersonic Hair Dryer Should You Buy?
Every Supersonic since the HD07 has been an argument about the same machine. The shape changes, the heater moves, a sensor gets added — but the design idea has not moved: move a large volume of air at a temperature low enough that it dries hair instead of cooking it.
That makes choosing between them less about “which is best” and more about which of the four trade-offs you actually care about: price, weight, scalp protection, or cord length.
The four models at a glance
| Model | What it adds | Weight & size | Voltage | Price |
|---|---|---|---|---|
| Supersonic HD07 | The original. Intelligent heat control reading airflow temperature more than 40 times a second; V9 motor at up to 110,000 rpm; 13.3 l/s airflow; three magnetic attachments. | Full-size body | 110–120V | $69 |
| Supersonic Nural HD16 | Scalp protect mode with a time-of-flight sensor; attachment memory; pause detect; three speeds and four heat levels (212°F, 176°F, 140°F, 82°F). | Full-size body | Check the listing for your region | $109.99 |
| Supersonic r HD17 | The most powerful machine in the range. Ten heater foils curved through the head instead of a ring at the top of the handle; five RFID-tagged attachments that remember their own settings. | 30% smaller, 20% lighter than the Supersonic range | 120V | $139.99 |
| Supersonic r Professional HD18 | The salon build: 12.5 ft cord, 325 g body with the weight in the plug, and a spare inner filter in the box. | Salon configuration | 120V | $169.99 |
HD07: still the reference point
The HD07 is where the whole line started, and it is still the model with the longest track record and the largest body of owner reviews behind it. A thermistor in the head measures the airflow temperature more than 40 times a second and adjusts the heater to hold it steady; the digital motor V9 sits in the handle rather than the head, which is what let the manufacturer shrink the machine in the first place.
If your main question is “will this dry thick hair quickly without frying it”, the HD07 answers it at the lowest price in the range. It is the sensible default, and it is the one we would point a first-time buyer at.
See the Supersonic HD07 in Prussian Blue and Rich Copper
HD16: the one that watches your scalp
The Nural HD16 exists because most dryers are designed around one question — how fast can it dry — and not around what all that heat is doing to the skin next to the hair.
Its Scalp protect mode uses a time-of-flight sensor to measure how far the dryer is from your head and lowers the heat as you get closer, so the airflow stays comfortable without you adjusting anything mid-blow-dry. In the manufacturer’s testing, that mode produced a 3x stronger scalp barrier and up to 96% more shine compared with air drying.
Two details are worth knowing before you buy. First, switching into Scalp protect mode overrides your last-used heat setting — that is by design, not a fault. Second, pause detect uses an accelerometer with a deliberate 240 ms delay, so the heater drops only when the dryer is actually set down, not during the half-second you pause to section your hair.
HD17: the one you can hold all morning
The r HD17 is a different shape, and that is the entire point. The heater was rebuilt into the curve of the head as ten separate foils, and the primary electronics moved into the plug. The result is a body 30% smaller and 20% lighter than the Supersonic range, while being the most powerful machine the manufacturer makes.
For anyone who dries their own hair daily, or who styles several heads a day, weight is the spec that matters most and the one least often printed on the box. 96% of owners in the manufacturer’s consumer testing said it dries the back of the head effortlessly — which is another way of saying the weight stopped being a problem.
One compatibility note that catches people out: the r series uses its own attachment mount. If you already own Supersonic or Nural attachments, they will not fit the HD17.
HD18: the salon version of the HD17
The HD18 keeps the HD17’s 1,700W dryer and adds the three things a working stylist notices within a week: a 12.5 ft cord that reaches across a station instead of dragging the dryer off the trolley, a body that does not tire your wrist by the fourth client, and a spare inner filter so a clogged filter never costs you an appointment.
If the dryer lives on a station rather than in a bathroom drawer, this is the one. If it lives at home, the cord is just extra cable to coil.
See the Supersonic r Professional HD18
How to decide in thirty seconds
- Lowest price, proven machine, no strong opinion about sensors — HD07.
- Sensitive scalp, or you get hot-headed halfway through a blow-dry — HD16.
- You dry your own hair every day and your arm gets tired — HD17.
- You dry other people’s hair for a living — HD18.
Two things to check before you order
Voltage. These are not travel machines. The HD07 is 110–120V, the HD17 and HD18 are 120V, and none of them should be run through a plug adaptor in a 220V country. If you need something that works in both, look at the Supersonic Travel dryer, which is universal voltage across 100–240V.
Attachment fit. Supersonic and Nural attachments interchange with each other; the r series does not. If you are upgrading from an HD07 and want to keep your diffuser and nozzle, that single line decides between HD16 and HD17.
Every dryer on this page ships with a 12-month warranty from the day it arrives.
