My main priority is intensity control. How should I compare the options?

Most comparisons on intensity fall apart because they are made on figures nobody published. No output figure exists for the stopper at any position and none for any of Safar's three speeds, so a table of outputs would be fiction in both columns. The four questions above survive because a specification can answer every one of them.

The answer, in full

Put each candidate through four questions that a published specification can answer. Where is the control - on the bottle, or on a device. How many positions does it have. Can you get back to a position exactly, or only by feel. What does it cost. Run SOSA's two through that and you get this. The 12ml hanging bottle's stopper sits on the bottle and is set by hand: it loosens for stronger and tightens for subtler. That bottle runs Jasmine ₹459 up to Sea Breeze ₹519. Safar's control sits on the device, has three speed settings plus a one, two or three hour auto-off timer, returns to a position exactly, and is ₹3,999. SOSA publishes no per-speed figure of any kind: no duration, no output, no coverage. For any other product on your list, read its own published specification and answer the same four questions from it. A portion of every SOSA order supports girl-child education through Nanhi Kali.

The four questions, and SOSA's two answers

A comparison is only worth making on facts both sides publish. These four questions are the ones a specification can answer, which is why they are the four. Everything else - how much, how far, how long at a setting - is unpublished on SOSA's side, and I have no business guessing it on anybody else's.

Where and how many: on the bottle by hand, or on the device in three positions

The stopper is on the 12ml hanging bottle and is set by hand: loosen for stronger, tighten for subtler. Safar's control is on the device: three speed settings, and separately an auto-off timer at one hour, two hours or three hours. That is two controls on Safar and one on the bottle, and the counts are published in both cases.

Three positions and a timer, or one hand setting on glass.

Can you go back: exactly, or by feel

Three fixed positions are three places you can return to with certainty, which is the practical difference that matters most if you expect to move the setting often. The stopper has no published scale or marking, so returning to a previous setting is by feel. Neither of those is a fault; they are different mechanisms doing different jobs.

What it costs: from Rs 459, or Rs 3,999

The hanging bottles run Jasmine ₹459, Lavender and Sandalwood ₹499, Sandalwood ₹509, Icy Mint ₹499, Lemon ₹509, and Oud, Vetiver and Sea Breeze ₹519, with 15ml refills ₹399 to ₹449. Safar is ₹3,999, or ₹4,499 for the hotel-inspired variant, with nebuliser refills at ₹1,049 for 100 gm and ₹1,849 for 300 gm. On published prices that is roughly a ninefold difference, and what the extra buys is the control, not the oil.

A ninefold price gap, and the published difference is the control.

The scent is not a column in this table

It is tempting to put strength of scent in the comparison, and it cannot go there. SOSA publishes no strength ranking of the nine car scents, so the nine are nine names at nine published prices with no order between them. Whichever adjustment you choose, the scent decision is separate and should be made for its own reasons. Moving both at once is how people end up unable to say which change the car responded to.

Comparing on the control rather than the scent? The three-spray discovery sets run ₹709 to ₹909 and let you settle the scent question separately. See the discovery sets →

SOSA's two adjustments on the four published points

If a product SOSA does not make is on your shortlist, put it through the same four questions using its own published specification, in its own words. I have no measurements of it, SOSA publishes nothing about it, and a verdict from me would be worth less than two minutes with its spec sheet. The ten and thirty hour figures describe the 2000 mAh battery per charge, not how long the oil lasts.

“Compare on where the control is, how many positions it has, whether you can return to one, and the price. Those four are checkable.”

Running the comparison yourself

1. Write the four questions down: where, how many, can you return, what price.
2. Answer them for SOSA's two from the published specifications above.
3. Answer them for anything else from that product's own published spec.
4. Leave any row you cannot fill from a published source blank, not guessed.

Questions, answered