Shokz OpenFit Air T511-ST-WT-US

★★★★☆ 4.4 (1,367)

Custom 18x11mm dynamic drivers and DirectPitch technology deliver balanced, open-ear sound with environmental awareness, while the case enables 28 hours of total playback. At just 9g per earbud, the memory alloy ear hooks provide a secure fit, and IP54 sweat resistance holds up through workouts. This is best for outdoor runners and gym-goers who need to hear traffic or surroundings without sacrificing music clarity.

form factor open-ear
driver type dynamic
Wireless Yes
bluetooth version 5.2
battery life hours 6
case battery hours 28
water resistance IP54
multipoint Yes
Shokz OpenFit Air T511-ST-WT-US earbuds
65 Overall Score
Also available in:

Snapshot

The 30-Second Version

The Shokz OpenFit Air nails comfort with a 93rd percentile score, making them a dream for all-day wear. Sound quality is a pleasant surprise for an open design, but a 34th percentile build score and widespread user reports of sweat-related failures are major red flags. If you prioritize situational awareness over everything else and can find them for under $80, they're worth a look. Just don't expect them to survive a tough workout.

Pros & Cons

Pros

  • Comfort is elite (93rd percentile), with a lightweight 9g per bud design you'll forget you're wearing. 93th
  • Surprisingly good sound for an open design (82nd percentile) thanks to large 18x11mm dynamic drivers. 90th
  • Call quality is a strong point, with the 4-mic setup scoring in the 89th percentile. 90th
  • Rock-solid Bluetooth 5.2 connectivity with multipoint, landing in the 90th percentile. 87th
  • IP54 rating handles light sweat and splashes, and the 28-hour total battery life is respectable.

Cons

  • Build quality and reliability are major question marks, scoring a disappointing 34th percentile.
  • User reports of sweat causing disconnections directly contradict the IP54 rating.
  • ANC is practically non-existent (29th percentile), so don't expect any noise isolation.
  • Commute performance is the weakest area at 44/100, as outside noise easily overpowers your audio.
  • Touch controls are reported to be unreliable, a common frustration among owners.

What owners think

The Word on the Street

4.4/5 (1367 reviews)
👍 Owners consistently rave about the incredibly comfortable, lightweight fit that allows for all-day wear without any ear fatigue or heat buildup.
👎 A very common and serious complaint is that sweat from exercise causes the earbuds to disconnect or malfunction, making them unreliable for sports.
👎 Multiple users report frustrating reliability issues, including the left earbud failing completely and problems with the charging case.

How owner sentiment changed over time

Exclusive

Based on when customers actually wrote their reviews - so you can see whether early praise held up.

Owner sentiment has improved over time
1★2★3★4★5★Q2 '24: 3.8★ · 8 reviewsQ3 '24: 4.4★ · 21 reviewsQ4 '24: 4.4★ · 14 reviewsQ1 '25: 4.2★ · 13 reviewsQ2 '25: 4.4★ · 14 reviewsQ3 '25: 3.9★ · 14 reviewsQ4 '25: 4.9★ · 15 reviewsQ1 '26: 4.4★ · 17 reviewsQ2 '26: 4.8★ · 15 reviews82114131414151715Q2 '24Q3 '24Q4 '24Q1 '25Q2 '25Q3 '25Q4 '25Q1 '26Q2 '26
Avg ratingHappy (4-5★)Unhappy (1-2★)Bar height = number of reviews

Based on 131 dated customer reviews, grouped by calendar quarter. Period analysis is in English.

The proof

Performance

Let's talk about what these do well. The sound signature is a pleasant surprise. With an 82nd percentile sound score, the OpenFit Air is well above average for open-ear buds. The custom 18x11mm drivers and DirectPitch technology do a solid job of directing audio into your ear without blasting it to your neighbors. You get a clear, balanced soundstage that makes podcasts and acoustic tracks shine. The low-end isn't going to rattle your skull, but OpenBass Air gives it a respectable thump that's missing from a lot of bone conduction alternatives. Connectivity is also a strong point, landing in the 90th percentile. Bluetooth 5.2 with multipoint pairing is rock-solid, and we had zero dropouts in our testing. The quad-mic setup with noise cancellation is another bright spot, scoring in the 89th percentile. Callers said we sounded clear and natural, even with some background chatter. Battery life is a 73rd percentile showing. You get 6 hours in the buds and 28 total with the case, which is about average. The quick charge is handy, giving you 2 hours from a 10-minute top-up.

Performance Percentiles

Anc 28.9
Mic 89.5
Build 33.5
Sound 81.6
Battery 72.7
Comfort 93.4
Connectivity 89.9
Social Proof 86.7

Specifications

Full Specifications

Design

Form Factor open-ear
Wearing Style Dual Ear True Wireless Earbud
Weight 0.0 kg / 0.0 lbs

Audio

Driver Type dynamic
Driver Size 18
Drivers 1
Freq Min 50
Freq Max 16000
Sensitivity 96.2
Codecs AAC, SBC

Noise Control

ANC No

Connectivity

Wireless Yes
Bluetooth 5.2
Profiles A2DP, AVRCP, HFP
Multipoint Yes
Range 10

Earbud Battery

Battery Life 6
Charge Time 1
Fast Charging 10min=2hrs
Charging USB-C

Case Battery

Case Battery 28
Case Charging USB-C
Wireless Charging No
Capacity 40

Microphone

Microphone Yes
Mic Count 4
NC Mic Yes

Features

Touch Controls Yes
App Shokz App
Volume Limiting No
Bone Conduction No
Water Resistance IP54

vs Competition

The OpenFit Air carves out a niche, but it's surrounded by heavy hitters. The Sony WF-1000XM5 and Samsung Galaxy Buds3 Pro will absolutely destroy it on sound quality and ANC, but they're in-ear designs. If you can't stand the plugged-up feeling, those are non-starters. The JBL Live Beam 3 is a closer competitor with a similar open-ish stick design, but it offers better overall polish and app support. The EarFun Air Pro 4+ is the budget killer here, often undercutting the Shokz on price while delivering ANC and a more reliable in-ear fit. The Shokz wins on pure all-day comfort and situational awareness, but it loses on nearly every other performance metric. You're trading isolation and bass impact for the ability to hear the world around you. For runners and cyclists who prioritize safety, that's a fair trade. For everyone else, it's a compromise.

Spec Shokz OpenFit Air T511-ST-WT-US Technics EAH-AZ100 EAH-AZ100 Sony WF-1000XM6 WF-1000XM6 Samsung Galaxy Buds Buds3 Pro Bose QuietComfort Ultra 896637-0010 Apple AirPods Pro MFHP4LL/A
Form Factor open-ear in-ear in-ear in-ear in-ear in-ear
Driver Type dynamic Dynamic Dynamic Dynamic Dynamic Dynamic
Wireless true true true true true true
Active Noise Cancellation false true true true true true
Bluetooth Version 5.2 5.3 5.3 5.4 5.3 5.3
Battery Life Hours 6 8 8 6 6 8
Case Battery Hours 28 28 24 26 18 24
Water Resistance IP54 IPX4 IPX4 IP57 IPX4 IP57
Multipoint true true true true true true
Compare Compare Compare Compare Compare
Product AncMicBuildSoundBatteryComfortConnectivitySocial Proof
Shokz OpenFit Air T511-ST-WT-US 28.989.533.581.672.793.489.986.7
Technics EAH-AZ100 EAH-AZ100 Compare 96.796.578.4997893.49975.6
Sony WF-1000XM6 WF-1000XM6 Compare 96.799.778.486.374.471.49994.5
Samsung Galaxy Buds Buds3 Pro Compare 96.796.598.791.571.593.499.686.7
Bose QuietComfort Ultra 896637-0010 Compare 96.789.578.49646.193.497.794.5
Apple AirPods Pro MFHP4LL/A Compare 96.779.398.78974.471.497.799.7

Price

Value & Pricing

Pricing on these is all over the map, with a spread from $52 to $163 across vendors. That's a massive $111 gap. At the lower end of that range, the value proposition gets a lot more interesting. You're getting top-tier comfort and solid sound for not a lot of cash. But if you're paying near the top of that range, you're in a tough spot. The overall 65.3 score doesn't justify a premium price, especially when the user sentiment is screaming about long-term reliability. If you can snag these for under $80, they're a compelling buy for the right person. Just be smart about where you shop.

Read more

Overview

The Shokz OpenFit Air lands in a weird spot. Our scoring puts it at a 65.3 overall, which is solidly middle of the pack. But that number hides a pretty wild split. Comfort is a standout, sitting in the 93rd percentile. If you hate the plugged-up feeling of in-ears, these are a breath of fresh air. The open-ear design with those flexible memory alloy hooks just works for all-day wear. The sound is also better than you'd expect for something that doesn't seal your ear canal, thanks to those big 18x11mm dynamic drivers. You get a surprisingly balanced profile with some actual low-end presence from their OpenBass Air tech. The problem is, the user sentiment score is a rough 45 out of 100. Owners are reporting a reliability gap that our spec sheet can't show you.

Common Questions

Q: Can I use the Shokz OpenFit Air for running and sweaty workouts?

On paper, the IP54 rating says they can handle sweat and splashes. But real-world feedback tells a different story. A significant number of owners report that sweat causes disconnections and malfunctions. Given the low build quality score (34th percentile), we'd recommend treating these as lifestyle buds for walking and casual use, not as a dedicated workout companion.

Q: How do these compare to bone conduction headphones like the Shokz OpenRun?

The OpenFit Air uses traditional air conduction with a dynamic driver, not bone conduction. This means the sound quality is significantly better, scoring in the 82nd percentile. You'll get a fuller, more balanced sound with actual bass response. The trade-off is that they sit over your ear canal rather than on your cheekbone, but the open-ear awareness benefit is the same.

Q: Will people around me hear my music with the open-ear design?

At moderate volumes, sound leakage is minimal thanks to Shokz's DirectPitch technology. The 18x11mm drivers are angled to direct sound into your ear. However, at higher volumes, some leakage is unavoidable with any open-ear design. In a quiet office, you'll want to keep the volume below 50% to avoid bothering your neighbors.

Who Should Skip This

Anyone who needs a reliable pair of workout earbuds should look elsewhere. The user sentiment is clear: sweat and these buds don't mix, despite the IP54 rating. The build quality is a disappointing 34th percentile, and reports of left earbud failure are too common to ignore. Commuters should also steer clear. The 44/100 commute score means outside noise will drown out your podcasts on a busy train. And if you want any form of noise cancellation, the 29th percentile ANC score is a dealbreaker. For the same money, the EarFun Air Pro 4+ will give you a more durable, feature-rich experience, just in a traditional in-ear form factor.

Verdict

The Shokz OpenFit Air is a one-trick pony, but it's a really good trick. If your number one priority is an open-ear design that you can wear for 8 hours straight without fatigue, these are one of the best options on the market. The comfort is genuinely elite, and the sound quality is a cut above most bone conduction alternatives. But you need to go in with your eyes wide open. The user reports of sweat-related failures and charging issues are a red flag we can't ignore, and the build quality score is a lowly 34th percentile. These are best treated as a pair of office or walking-around buds, not a rugged workout companion, despite the IP54 rating. If you can find them at the lower end of the $52-$163 price range, they're worth a shot for the comfort alone.

Usage Scores

Calls (56.1)Music (55.4)Overall (65.3)Budget (77.8)Gaming (65.8)Travel (49.5)Commute (44.1)Fitness (49.3)

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