Shokz OpenRun Air 2 vs OpenRun Pro 2: the rinse-it pair against the one with bass

The verdict

Every published number

Both of these are Shokz's own figures from its official comparison table, which is the useful thing about comparing two models from one maker: the numbers are measured the same way, so the gaps are real rather than marketing artefacts.

1. IP67 vs IP55: the real gap

This is the only difference on the sheet that can end a pair of headphones, so take it first. IP67 and IP55 are both two-digit codes under IEC 60529, and both digits move.

• Dust: 6 means dust-tight — no ingress at all. 5 means dust-protected — some dust gets in, but not enough to interfere. On a headphone that lives in a gym bag with chalk in it, that is not nothing.
• Water: 7 means immersion, tested for 30 minutes under a metre of water. 5 means a 6.3 mm jet from any direction. The step from 5 to 7 is the step from “survives being sprayed” to “survives being submerged.”

In practice that means you can take the Air 2 to the tap and rinse the dried salt off the transducer pads, which is the single most useful maintenance habit for anyone who sweats heavily. On the Pro 2, Shokz's own comparison post describes care for the Pro models as gentle cleaning with a damp cloth. Neither is rated for swimming — Shokz prints “not for swimming” beside the Air 2's IP67 — and for laps you want the IP68 OpenSwim Pro instead. The full breakdown of what each digit is tested with is in IPX4 vs IPX5 vs IPX7.

2. DualPitch vs PremiumPitch 3.0

The Pro 2 runs Shokz's 10th-generation DualPitch system, which pairs the bone transducer with a small air-conduction unit aimed at the ear. The Air 2 runs 8.5-generation PremiumPitch 3.0, which is bone-only. That is the whole sound story and it is a bigger difference than a generation number suggests.

Bone conduction is physically bad at low frequencies: making real bass through the skull would mean vibrating it hard enough that you feel a buzz on your cheekbone rather than hear a bass line, and SoundGuys describes sub-bass and bass across the category as virtually inaudible. Adding an air driver sidesteps that limit for the low end only, which is why the Pro 2 is the best-sounding neckband we rank and still sits behind a decent open-ear ear-hook. On our rubric that is a 6 for the Pro 2 against a 5 for the Air 2 — a real gap inside a category that loses to everything else on sound. The honest version of that argument is at do bone conduction headphones sound good?

Practical read: if you listen to podcasts, audiobooks and radio while you train, this difference will not register and you should buy on the water rating. If you listen to music with a bass line and it currently annoys you that your neckband makes none, the Pro 2 is the reason to spend more.

3. Four grams and a smaller frame

26.4 g against 30.3 g for the standard size, 25.9 g against 30 g for the Mini. Shokz also says the Air 2's frame is 9% smaller than the OpenRun's, which is the closest thing to a published dimension either model gets.

Four grams sounds like nothing and is nothing over a 5K. Over a four-hour long run or a day at a desk with glasses on, it is the difference between a band you forget and a band you notice behind your ears. If your head circumference is over 9.25 inches, Shokz steers you to Standard; below that, the Mini is the version that stops the band bouncing. That sizing question is worth getting right before anything else, and it is covered in bone conduction headphones for big heads.

4. Battery, quick charge and radio

12 hours on the Pro 2 against 10 on the Air 2; a 5-minute charge is worth 2.5 hours against 2. Both charge over USB-C in an hour, which is the quiet upgrade both models have over the older OpenRun and its magnetic cable.

The radio runs the other way: the Air 2 is Bluetooth 6.0, the Pro 2 is 5.3. Both do multipoint, so a phone and a laptop at once works on either, and in day-to-day use you will not feel the version gap. It matters only as a hint about which one Shokz shipped more recently: the Air 2 launched in August 2026, the Pro 2 in August 2024.

Microphones are a near-tie. Both have dual AI noise-cancelling arrays; the Pro 2 publishes wind resistance to 25 km/h, the Air 2 says wind-resistant without a figure. If calls on a bike are the point, the figure-publishing model is the safer buy, and the wider problem is in wind noise on open-ear earbuds.

What is identical on both

Worth stating plainly, because it is most of the product. Both are titanium neckbands with the transducers resting on the cheekbone in front of the ear canal, both come in Standard and Mini, both use physical buttons rather than touch panels, both support multipoint, and both leave the ear canal completely open so traffic, a bike bell or a coach's instruction arrives unprocessed. On our rubric they both score 10 for fit security and 10 for awareness. Nothing on either pair goes into an ear canal, which is why neither can work loose the way a sealed tip does.

If both are too expensive

The honest third option is the Shokz OpenMove: the same neckband idea at under $100 list, IP55, 29 g, 6 hours, USB-C, 7th-generation driver. You give up quick charge entirely and four hours of battery, and the sound is the thinnest in the Shokz line. It is still a Shokz neckband that will not fall out. If the budget is the binding constraint, compare it against the non-Shokz options in best bone conduction headphones under $100 before you decide — the Creative Outlier Free Pro is IPX8 with 10 hours for less.