Compare Polar Pacer Pro vs Garmin Lily 2 Active

Automatic hill detection through Hill Splitter received direct praise from one reviewer who said it worked perfectly.

The Polar ecosystem was praised strongly, especially Polar Flow, third-party fitness connections, and recovery/training analysis depth.

The app ecosystem is praised as comprehensive for wellness data and long-term health interpretation.

Band quality was praised for race-friendly ventilation and a strong buckle.

Band quality is praised for comfort, quick-release swapping, and easy removal.

Battery life was one of the most common caveats, often landing around five days despite some positive week-long or GPS-use experiences.

Battery life is strongly praised, often beating or matching expectations and lasting around a week or more in real use.

Blood oxygen tracking was treated as a notable missing health sensor rather than a working feature.

One reviewer was very positive about Pulse Ox readings, saying the watch routinely matched their normal SpO2 range.

Bluetooth accessory compatibility drew criticism in one review after cycling power meters failed to pair reliably.

Bluetooth connectivity is viewed positively because the watch pairs easily with phones and other devices.

Brightness impressions varied widely: some found it bright enough in darkness, while others found it dim or less vivid than AMOLED-style watches.

Brightness is generally acceptable, with one reviewer noting easy viewing, while another says the screen itself is not ultra-bright.

Build quality was generally positive for a slim sports watch, though one reviewer paired praise with typical Polar-specific caveats.

Build quality draws criticism from one reviewer who dislikes the cheaper-material feel.

Button controls were mostly a strength because they were grippy, responsive, and useful during workouts, though a few reviewers needed adjustment or hit the wrong button.

Button controls are a unanimous strength because they make workouts and navigation much easier than touch-only Lily models.

Call handling is useful for glancing at calls on the wrist without pulling out a phone.

Calorie and energy-source tracking was viewed as useful for training context, though one reviewer cautioned FuelWise output is still a guesstimate.

Charging convenience was a recurring weakness because reviewers disliked the new magnetic connector or found it less secure.

Charging convenience improves because the watch uses the standard Garmin cable rather than the older Lily clip style.

Charging speed was mixed, with one reviewer praising fast charging and another calling charging slow.

Coaching features were one of the clearest strengths, with FitSpark, training plans, workout guidance, and training-load advice repeatedly praised.

Coaching features are well received, with reviewers praising Garmin Coach, adaptive plans, and guided structured workouts.

Comfort was one of the strongest points, with reviewers repeatedly praising its lightweight body, strap, and all-day or overnight wearability.

Comfort is one of the most consistent strengths, with reviewers saying the small, light watch is easy to forget on the wrist.

Companion app quality was mixed: reviewers praised data depth and explanations but also called Polar Flow less intuitive or less polished than rivals.

The companion app is useful for setup, coaching, and deeper tracking, with one reviewer preferring it for faster, clearer health logging.

Contactless payments were treated as a missing smartwatch feature.

Garmin Pay is considered useful and easy to set up, though one reviewer notes its value drops if a phone is still needed for music.

Cross-platform compatibility is mixed because Android users get quick replies while iPhone users cannot reply from the watch.

Customization options were a strength for sport profiles, data fields, workout screens, and zones.

Customization is mixed-to-good: notifications and data views have useful controls, but watch-face flexibility is more limited than other Garmins.

Display quality was mixed-to-good, with improved readability and responsiveness offset by dullness, bezel size, and lack of OLED vibrancy.

Display quality is divisive: reviewers like the contrast and hidden-display style, but some dislike the monochrome screen or limited visual richness.

Durability was positively described through comfortable/durable design and expectations from its water resistance and military-standard testing.

Durability is a concern for one reviewer, who connects the aluminum casing to easier scratching and reduced durability.

ECG functionality was treated as a missing health feature compared with competing smartwatches.

ECG is a clear limitation: a reviewer explicitly wished Garmin had included the hardware for ECG-related features.

Fit was mixed: one reviewer had trouble with wrist fit, while others praised the snug or broadly wearable design.

Fit is excellent for the intended user, especially people who want a small watch that sits comfortably on smaller wrists.

Fitness tracking accuracy was generally positive for workout metrics, but the walking/VO2-style testing drew criticism from one reviewer and mixed scientific testing lowered confidence.

Fitness tracking accuracy is a major strength, with multiple reviewers finding pace, distance, and overall workout data accurate.

GPS accuracy was mixed-to-positive: several reviewers found it fast, reliable, or excellent, while others saw wobble, offsets, or lower scientific GPS scores.

GPS accuracy is one of the strongest themes, with reviewers repeatedly finding quick locks, solid routes, and close agreement with other devices.

Reviewers split on broader health accuracy: ZDNet praised reliable all-day health and wellness data, while the scientific test review was much less impressed overall.

One review gives the broader health-tracking package a very strong assessment, describing fitness tracking as excellent within Garmin’s health ecosystem.

Heart-rate results were mostly good for steady running and several reviewers saw close agreement with straps or other watches, but high-intensity sessions and cycling produced spikes, lag, or weaker results.

Heart-rate accuracy is consistently praised, with reviewers noting only minor delays or brief misses during harder efforts.

Navigation was useful but limited: reviewers liked turn-by-turn routes and back-to-start, while criticizing simple arrows, basic mapping, or clunky Komoot routing.

Mapping and navigation are mixed-to-weak: GPS mapping after workouts works, but reviewers note no detailed map display and no hiking profile.

Materials quality was praised in relation to the Pro model's more premium aluminium bezel and buttons.

Materials quality is criticized by one reviewer for relying on cheaper materials.

Menu navigation was easy once the reviewer learned the physical buttons.

Menu navigation is viewed positively, with one reviewer describing swiping and app opening as smooth.

Music controls were generally useful for controlling phone audio, though reviewers repeatedly noted they are not a substitute for onboard music.

Music controls work well for controlling phone playback from the wrist.

Onboard music storage was consistently absent and criticized as a limitation for a sports watch.

Onboard music storage is a repeated downside because the watch lacks local music even though it now has built-in GPS.

The operating system experience was functional but visually dated according to one reviewer.

The operating experience may feel unusual to traditional Garmin users, but the reviewer says the approach makes sense for this type of watch.

Outdoor visibility was generally strong, with reviewers repeatedly saying the screen was readable outdoors and in bright light.

Outdoor visibility is mostly strong in sunlight, although one reviewer found bright outdoor conditions could make it harder to read.

Pairing reliability is praised across sensor use, with reviewers noting easy sensor connections and appreciation for expanded external sensor support.

Recovery insights were consistently praised for connecting sleep, readiness, training load, and daily recommendations into usable guidance.

Recovery and readiness tools are praised for helping shape training decisions and fine-tune workouts.

Reliability was praised by one reviewer who found the data accurate through extended daily use.

Reliability is positive in one review, with the reviewer saying GPS remained spot-on and did not drop.

Running power support was broadly positive because wrist-based power appears at this price, though one reviewer still preferred STRYD for accuracy.

Safety features were positively reflected in overreaching warnings that helped the reviewer avoid risky training load.

Safety features are praised as reassuring for solo runs and emergency-contact situations.

Score tracking was praised through ZDNet's frequent use of the Running Index report.

Sleep tracking was one of the stronger areas overall, with multiple reviewers praising Nightly Recharge or alignment with Oura and Whoop, though one scientific sleep-stage test rated it only mediocre.

Sleep tracking earns strong marks overall, especially for wake/sleep timing and presentation, though one reviewer wanted more refinement in stages.

Notification support was functional but uneven: some reviewers welcomed it, while others found it tucked away or forced into a dedicated menu.

Smartphone notifications are considered helpful for quickly checking messages during outdoor activity.

Smartwatch features were a repeated weakness; reviewers framed the Pacer Pro as a sports watch first, with limited apps, payments, assistants, and connected features.

Smartwatch features are mixed: some reviewers see a well-rounded compact device, while one finds the smart-feature set limited for the price.

Software smoothness was usually praised after Polar's processor update, though one reviewer still noticed slowdown or lag in places.

Software smoothness is positive, with reviewers noting smooth syncing and smooth navigation between widgets.

Step counting evidence was mixed, with Wareable seeing counts in line with Oura while the scientific test found undercounting and gave it a middle score.

Step counting is described as close but slightly high, with limitations when the arm is not moving normally.

Stress tracking is viewed as a useful interpretive metric, especially because it helps explain Body Battery changes.

Style and design were mixed: reviewers liked the light, attractive, sporty build but also criticized the bland, basic, or less stylish appearance.

Style and design are major strengths, with reviewers repeatedly praising the fashionable, subtle, non-smartwatch look.

Third-party support was split: there is no on-watch app store, but Polar Flow can sync with key fitness platforms such as Strava, TrainingPeaks, and Komoot.

Third-party app support is positive, especially syncing workout data outward and broadcasting heart rate to other devices.

Touchscreen responsiveness is split, with one reviewer finding it very sensitive and simple, while another calls the controls finicky.

The user interface was described as simple, intuitive, and uncluttered by reviewers who liked its directness.

The user interface is praised as simple to learn and easy to swipe through.

Value for money was one of the strongest themes: reviewers repeatedly said the watch brings higher-end Polar features to a much more attractive price.

Value is mixed-to-positive: many reviewers think the upgrades justify the price, while a few criticize the cost versus fuller smartwatches.

Voice assistant capability was scored low because reviewers noted smart assistants were not included.

Watch face quality is mixed, with one reviewer liking the selection and another finding the options very limiting.

Water resistance was positively viewed as suitable for swimming, showering, and bathing.

Wellness insights were useful when tied to breathing, recovery, and training advice, but one reviewer felt negative sleep feedback could create stress.

Wellness insights are a standout, especially Body Battery, women’s health context, sleep, stress, and overall body-awareness feedback.

Workout variety was a strength, with reviewers describing the Pacer Pro as a multisport watch with a broad activity library rather than only a running watch.

Workout variety is broadly praised because the Active adds many sports, workout modes, and training tools for a compact Lily watch.