Sunday Runday
On this weekly column, Wearables Editor Michael Hicks discusses the world of operating watches, health apps, and coaching developments, in his quest to get quicker and fitter.
The Pixel Watch 4 is Google’s sportiest smartwatch but. As somebody who’s examined almost each smartwatch and health watch model, I put the Watch 4 via its paces to see how properly its accuracy holds up in opposition to a premium Garmin watch, judging when Fitbit beats the competitors and when it falls quick.
I took the Pixel Watch 4 out for a half-marathon and a second 19-mile run — together with shorter runs and a hike — evaluating its HR accuracy in opposition to a chest strap and its GPS accuracy in opposition to the dual-band Garmin Forerunner 970.
I additionally in contrast stats like step depend, elevation, and operating kind, examined how Google’s new exercise detection works, and determined whether or not the Watch 4’s new 3,000-nit show and improved battery life make an actual distinction.
I am unable to totally decide the Watch 4 health expertise till the Gemini-backed Fitbit coach arrives later this month. Nevertheless it’s truthful to say the Watch 4 is a surprisingly robust health watch choice — even when it is nonetheless lacking some necessities that critical athletes want.
GPS accuracy
Anybody who learn my Pixel Watch 4 hands-on impressions noticed my preliminary GPS and HR accuracy outcomes, however I will go into extra depth right here. The Pixel Watch 4 defaults to dual-frequency GPS, but additionally manages to be extremely environment friendly at it. Google hasn’t shared its strategies, however I would guess it is much like Garmin’s SatIQ mode, pinpointing with L5 alerts when the L1 sign is disrupted.
Throughout a half-marathon race in downtown San Jose, the Pixel Watch 4 confirmed mile-long stretches with very correct monitoring, with the 2 watches’ outcomes carefully overlapping. Nevertheless it wasn’t excellent, as a number of the slides under present (click on the field for a more in-depth view):
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I additionally famous loads of moments the place the Watch 4’s GPS line curved considerably off of my route earlier than returning, probably as a result of mirrored alerts from tall buildings. Extra subtly, the Watch 4 is slower to react to any 90-degree flip, with a a lot wider loop than I truly took. And it did not do one of the best at staying straight underneath underpasses.
Regardless of its struggles, the tip consequence wasn’t removed from Garmin’s, which had its personal occasional struggles with tall buildings however was extra faithfully on monitor.
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For my subsequent check, I ran a number of miles on the identical neighborhood loop. Google and Garmin keep parallel — possible as a result of they’re on my left and proper wrists — however it’s truthful to say that Garmin’s outcomes keep extra constantly on the identical line, whereas Google’s line strays far more, regardless of there being few sign blockers close by apart from some timber.
Once more, although, the ultimate consequence was 5.00 vs. 5.01 miles (16m), and you would be stunned what number of dual-band GPS watches stray barely off monitor. The Pixel Watch 3 tended to be considerably worse, notably for hikes.
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I lately ran 19 miles with the identical two watches, plus a 3rd dual-band COROS watch. The ultimate consequence: Garmin measured 0.02mi extra and COROS 0.01mi greater than Google, all with the identical 9:23/mile common. I will spare you 19 miles’ value of screenshots, however this was the Watch 4’s greatest monitoring consequence, with solely the occasional sections the place it strayed off-path.
On a associated be aware, the Pixel Watch 4’s elevation monitoring was solely 0.8 ft off of Garmin’s for the 19-mile run, although the hole was 3m for my half-marathon. I did not get an opportunity to climb a mountain or something, however I typically belief its outcomes.
General, the Pixel Watch 4’s GPS accuracy is as reliable as I hoped. It is also extra environment friendly than I anticipated, solely utilizing about 7.5% of my battery per hour of monitoring for a few runs. It guzzled extra battery throughout my 19-mile run, hitting nearer to 12% battery used per hour, however nonetheless had greater than sufficient juice for an extended exercise.
HR accuracy
Google promised that the Pixel Watch 3 had its “most correct” HR algorithm, and did not deliver it up with the Watch 4, so we are able to safely assume it is unchanged. And that reveals within the precise outcomes: For no matter purpose, Google’s HR common all the time falls 1 bpm wanting different chest, arm, or wrist-based sensors.
Throughout my half-marathon, my Garmin paired with a COROS HRM armband constantly measured barely larger than Google’s consequence, notably when my HR rose above my lactate threshold into anaerobic ranges. The graphs run in parallel, with Google all the time in the suitable vary, however 1 bpm quick.
It is regular for a wrist-based optical sensor to lag behind an arm or chest strap, however evaluating the Pixel Watch 4 in opposition to Garmin’s Fifth-gen Elevate sensor is fascinating. You may see how each watches reply to modifications in effort at almost the identical time all through a 40-minute run. Nonetheless, Google’s outcomes are barely deflated, as soon as once more 1 bpm quick on common.
For my 19-mile run, I synced my Garmin HRM 200 chest strap to my Forerunner. You may ignore the three flat-line stretches; completely different watches deal with paused exercises for water and loo breaks in a different way. In any other case, you may see how the Watch 4 largely retains tempo however nonetheless falls 1–2 bpm quick throughout speedy modifications. The ultimate averages — Watch 4 with 161 bpm, HRM 200 with 162 bpm — had been predictable at this level.
I gave the Pixel Watch 3’s HR accuracy a “B” grade final yr, and I would give them the identical grade this yr: good however not distinctive. The actual downside is that Google would not give individuals a manner to enhance their outcomes, as Put on OS would not assist connecting to exterior HR displays. That is a deal-breaker for lots of athletes!
Computerized exercise detection
Google guarantees that its AI will “routinely detect and classify your exercise and ship you a recap” for actions like operating, biking, soccer, or utilizing an elliptical. The Watch 3 would immediate you to substantiate an exercise mid-workout; now the Watch 4 asks after you are accomplished.
To check this function, I ran 4 miles sporting my Pixel Watch 4 and Forerunner 970, solely monitoring it on the latter. After I completed, I sat on a bench for ten minutes to verify Fitbit did not embody any post-run strolling within the exercise.
After I acquired dwelling, I obtained a notification that I would run for 39:53 — solely 4 seconds off of Garmin’s period — with a 142 bpm common (one under Garmin’s common, predictably). The one downside was that it measured 4.6 miles as an alternative of 4.0; computerized actions do not present a GPS map, so I do not know what went fallacious.
I’ve all the time appreciated that Fitbit Cardio Load offers you credit score for all actions, not simply those you log. I favor to log each exercise myself reasonably than depend on guesswork, however at the least Google’s AI guesswork is fairly dependable (apart from GPS).
Step depend and operating kind
Google enhanced its step depend algorithm for strolling with a stroller or trekking poles in March, then reverted it in April as a result of some customers had inaccurate outcomes. After that whiplash, we’re again the place we began, and I’ve usually discovered that Fitbit step counts are inclined to fall barely wanting my precise numbers.
Somebody must bribe me to depend my steps throughout a half-marathon, however I discovered it fascinating that my last step depend on my Garmin (23,041) was considerably larger than on my Pixel Watch (21,852). For my 19-mile run, the hole was smaller (34,260 vs. 33,960), with Garmin nonetheless estimating extra.
Each Garmin and Google analyze your operating dynamics (or kind) after a run. Every watch measured the very same stride size for my 13- and 19-mile runs, whereas my cadence was both the identical or 1 step per minute off.
For different stats like floor contact time and vertical ratio/oscillation, they diverge barely, with Garmin suggesting my kind is extra environment friendly. After I wore three watches, COROS’s GCT and stride ratio numbers had been nearer to Garmin’s, so indicators counsel Google’s operating kind numbers could be barely conservative.
The place the Pixel Watch 4 matches, or falls wanting, a Garmin look ahead to athletes
Google/Fitbit and Garmin have an extended checklist of comparable health, well being, and security options. Each supply coaching load knowledge and present long-term developments and targets. Each have a morning report/temporary exhibiting your Physique Battery/Day by day Readiness, sleep rating, climate, and train ideas. Each let relations monitor your progress for security: Garmin with LiveTrack and Google with Security Examine.
Google warns you within the morning if stats like HRV, RHR, pores and skin temp, or SpO2 are outdoors your regular vary; Garmin simply launched an analogous function, Well being Standing, on the Venu 4 and may deliver it to different watches quickly.
Garmin at the moment has the sting for coaching ideas, with Garmin Teaching for operating, biking, energy coaching, triathlons, and multisport “health,” plus personalised every day exercises outdoors of structured plans. However the upcoming Fitbit AI coach ought to problem Garmin with Gemini-made custom-made teaching plans that regulate based mostly in your sleep high quality, soreness, or if you happen to inform Gemini you are injured.
Whereas Google has an edge for AI — it isn’t controversial to say Gemini might be a lot smarter than Garmin’s Join Plus AI, which solely summarizes your stats utilizing an LLM — it nonetheless falls quick for different coaching fundamentals.
I am nonetheless ready for Google to make use of its Maps benefit for health. If Google allow you to create exercise routes in Maps — with the choice to make use of avenue view to verify it is protected for pedestrians or cyclists — after which add them to your watch, that’d be implausible.
Garmin’s maps and turn-by-turn navigation offer you topographical particulars, close by landmarks, and auto-correction if you happen to go off-path. The one downside is, they’re fairly laggy. If Google made its personal equal, it might have the benefit of a correct Snapdragon processor.
A lot of my gym-loving colleagues are nonetheless ready for Pixel Watches so as to add rep counting, and suppose the Pixel Watch is inferior to different manufacturers for indoor exercises.
Fitbit, to be truthful, has coaching movies from skilled coaches, together with Peloton exercises. And the brand new Gemini coach will counsel particular workouts in classes like HIIT and body weight workouts. That is all properly and good for Premium subscribers.
However the watch itself will solely decide your energy exercises on fundamentals like coronary heart price and energy burned, whereas Garmin tracks particular person reps for every train sort, corresponding to bench presses. My colleagues would like to see Google add gymnasium train classes, each for handbook logging and computerized detection utilizing the Watch 4’s gyroscope.
Google has a powerful basis of operating metrics, however the Pixel Watch 4 nonetheless would not have operating energy, race time predictions, cardio/anaerobic coaching impact breakdowns, post-run restoration time ideas, or devoted exercise modes for monitor or path operating.
Throughout an precise run, the Pixel Watch 4 would not benefit from its beautiful 3,000-nit show as a result of the information proven on display screen is extraordinarily restricted: Miles, period, HR, tempo, and time within the present HR zone. There is no technique to present some other info mid-workout, whereas Garmin has lots of of customized knowledge fields.
The Pixel Watch 4 can broadcast biking stats in your telephone mounted in your handlebars, however it could possibly’t sync with energy meters for FTP or present the upcoming climbs in your route. Nor will you discover any triathlon modes or open-water swimming.
There’s additionally the truth that the Pixel Watch 4 solely lasts about two days per cost and would not have sapphire glass.
To the primary level, its GPS monitoring is environment friendly sufficient to deal with any multi-hour race, then recharges totally in an hour or much less; it is simply not constructed for all-day hikes or rides like Garmin. To the second level, it’s possible you’ll resolve to purchase a bumper case/ display screen protector as a precaution.
General, the Pixel Watch 4 remains to be lacking some fundamentals that critical athletes want, and there isn’t any assure that the Pixel Watch 5 will prioritize area of interest use circumstances that do not enchantment to a wider viewers. However Google is continuous to enhance its health expertise, and that is one thing value acknowledging.
Sporty smartwatch for informal athletes
The brand new Pixel Watch 4 comes with six months of Fitbit Premium and helps third-party apps like Strava and Nike Run Membership, so you may sync exercises instantly together with your favourite app. You additionally get smarts like Gemini Elevate to Discuss and direct messaging that Garmin cannot match, in addition to a brighter AMOLED show, extremely quick charging, and in-depth well being and sleep developments.
