You have six choices in this comparison. Five put numbers in front of your eye. One records the swim for later. Your workout decides which feature matters.
We compared manufacturer documents with firsthand tests by named athletes and owners on October 3, 2026. We have not swum with these goggles. A reviewer’s fit result applies to that person.
| Model | Price | What you see during a pool swim | Key hardware | Ongoing fee | Data out | Pool evidence we found |
|---|---|---|---|---|---|---|
| FORM Smart Swim 2 LT | $149 | Live pace, distance and time | No built-in heart rate | Optional Premium, $119/yr | FIT/CSV export | Jon Dorn tested it in the pool |
| FORM Smart Swim 2 | $199 | Same core display | Built-in heart rate | Optional Premium, $119/yr | FIT/CSV export | No separate test of this model cited here |
| FORM Smart Swim 2 PRO | $259 | Same core display | Heart rate, Gorilla Glass, renewable anti-fog | Optional Premium, $119/yr | FIT/CSV export | India Paine tested it over several pool sessions |
| HoloSwim 2 Pro | $149 | Live metrics and workouts | Display model | None stated by maker | Not confirmed | One owner reported useful distance data and leaks |
| HoloSwim 3 Pro | $249 | Live metrics | GPS and compass for open water | None stated by maker | Garmin sharing advertised, unverified | Firsthand GPS review, not a pool lap test |
| Speedo iQ Vanquisher 3.0 | $189 | No display, data after the swim | Slimmer frame, wider view | Free app | Not covered here | India Paine tested it in the pool |
Which goggles help you hold a pool interval?
Choose an in-goggle display when you swim to a pace target. FORM says the LT, 2 and 2 PRO show pace, distance and time while you swim. All three models show those real-time metrics at no extra cost, with no subscription required.
Jon Dorn used the LT in the pool and open water for Triathlete. He valued the live pacing and found a breathing asymmetry with the paid HeadCoach™ feature. He also reported light fogging and reduced peripheral vision. His result shows a use for the data. It does not prove a speed gain for every swimmer.
India Paine, an amateur triathlete writing for 220 Triathlon, tested the FORM 2 PRO and Speedo iQ over several weeks of pool training. She found FORM’s live display and coaching useful. She also found its casing bulky and its view tunnel-like. Both pairs sealed for her, but your face may produce a different fit.
What changes between the three FORM models?
The LT drops built-in heart rate. The 2 and 2 PRO add it. The PRO also adds Gorilla Glass lenses and renewable anti-fog treatment. FORM’s comparison lists the same contoured replaceable eye seals across all three. The LT does not use an older seal design.
Premium adds HeadCoach™, guided workouts, training plans and a workout builder. It is a paid plan after an introductory month. FORM asks for payment details to activate the optional trial; its built-in features do not require a subscription. You keep live core metrics and post-swim history if you do not continue Premium.
What do the HoloSwim models add?
HoloSport lists both models on its US store. It states there is no subscription fee. The 2 Pro provides live data and workout plans. The 3 Pro adds GPS and compass navigation, features with more use outside the pool.
The independent evidence is narrower. One 2 Pro owner found the distance data useful but reported repeated leaks. That is one fit report. It is not a measured failure rate. A firsthand 3 Pro review examined an open-water GPS track. It does not establish how well the 3 Pro counts pool lengths. Try the seal during the return window if you choose either HoloSwim model.
When does Speedo make more sense?
Choose the Speedo iQ if you review data after your session. It has no in-lens display and records pool swims for its free app. Paine found it slimmer than FORM, with a wider field of view during her test. Its case rests on that fit and clear view, since it cannot show live pacing.
Can you move your swim data into Garmin?
FORM lets you export one swim or your full history as FIT or CSV. HeadCoach™ scores are excluded. FORM’s Garmin integration works in one direction: a compatible Garmin watch can supply GPS data for open-water swims, and swims recorded without the goggles can be imported into the FORM app. FORM says Garmin Connect does not allow the reverse, so FORM swims and workouts cannot be sent directly to Garmin Connect, and Garmin workouts cannot be loaded onto the goggles. That limit sits on Garmin’s side, not FORM’s. HoloSport advertises Garmin sharing for the 3 Pro. We have not verified the transfer direction or file format, so do not base a data workflow on that label alone. We found no documented public developer API for either goggle platform during this review.
Which pair should you shortlist?
For pool intervals, shortlist the FORM LT first. It gives you live pace with documented FIT and CSV export. Move to the 2 if you want heart rate from the goggles. Choose the PRO for its lens and anti-fog upgrades. HoloSwim 2 Pro includes subscription-free workouts, but has less independent pool evidence. Speedo fits the swimmer who values an unobstructed view and is happy to see data later.
Sources and limits
Product terms: FORM models, FORM Premium, HoloSport models. Athlete tests: Jon Dorn in Triathlete and India Paine in 220 Triathlon. Holo evidence: one 2 Pro owner and the5krunner’s 3 Pro open-water test. The magazine tests disclose affiliate links. HoloSport supplied the5krunner’s test unit. Data: FORM export and FORM Garmin integration. No test cited here measures all six in the same pool under the same protocol.