Compare Polar Grit X vs Garmin Approach S70

P1 Polar Grit X
P2 Garmin Approach S70

Comparison Takeaways

Polar Grit X

Where It Has the Edge

  • user interface is 4.2 vs 2.5. The core user interface was praised as logical and easy to navigate, especially with the physical buttons.
  • charging convenience is 4.3 vs 3.1. Charging convenience was positive, with a familiar magnetic charger that attached securely and reused earlier Polar charger compatibility.
  • software smoothness is 3.2 vs 2.4. Software smoothness was mixed: syncing could take time and one reviewer felt Polar Flow graphics looked dated.
  • call handling is 3.5 vs 2.7. Call handling was limited to phone-call alerts rather than taking calls or advanced communication features.

Garmin Approach S70

Where It Has the Edge

  • onboard music storage is 4.5 vs 1.0. Onboard music storage is a clear plus, with multiple reviewers noting downloaded songs or playlists from services such...
  • contactless payments is 3.7 vs 1.0. Contactless payments are available through Garmin Pay, but evidence is mixed because bank support and setup can be...
  • music controls is 3.6 vs 1.1. Music controls are present, but reviewers split between liking access and finding Garmin’s menu path less convenient than...
  • safety features is 4.0 vs 2.0. Safety features have limited support, with one guide noting an assistance/fall-detection-style safety feature.
Average score
Product 1: Polar Grit X
3.7
Product 2: Garmin Approach S70
4.3
activity auto-detection
Product 1: Polar Grit X
3.6

Auto-detection evidence mostly concerns Hill Splitter automatically recognizing climbs and descents, but reviewers disagreed on how timely or useful it was.

Product 2: Garmin Approach S70
4.6

Auto-detection is supported mainly through automatic shot tracking and measured-shot behavior, with positive convenience but some manual confirmation or sensor caveats.

app ecosystem
Product 1: Polar Grit X
4.0

The app ecosystem was useful through Polar Flow, sensor pairing, web/app syncing, and links with health or training platforms.

Product 2: Garmin Approach S70
4.8

The Garmin ecosystem is praised for tying golf, fitness, watch faces, and Connect IQ-style additions together.

band quality
Product 1: Polar Grit X
3.8

Band quality was mixed: reviewers liked standard 22mm compatibility and comfort, but also reported grime retention and a broken clasp.

Product 2: Garmin Approach S70
4.0

Band quality is mixed: reviewers like comfort and integrated looks, but several dislike the molded strap not laying flat or prefer older straps.

battery life
Product 1: Polar Grit X
4.0

Battery life was one of the most mixed areas: GPS endurance and power modes impressed, but daily runtime ranged from disappointing to excellent.

Product 2: Garmin Approach S70
4.9

Battery life is one of the strongest positives, with reviewers reporting long smartwatch use, multiple rounds, and much better endurance than Apple Watch comparisons.

blood oxygen tracking
Product 1: Polar Grit X
No score yet
Product 2: Garmin Approach S70
4.4

Pulse ox and blood oxygen tracking are present in several reviews and treated as part of the S70’s higher-end health sensor package.

Bluetooth connectivity
Product 1: Polar Grit X
3.7

Bluetooth connectivity supported phone syncing and some sensors, but the lack of ANT+ or mixed sensor comments made it less universal.

Product 2: Garmin Approach S70
4.1

Bluetooth connectivity is supported through Bluetooth music and headphone pairing, though the evidence is functional rather than deeply evaluated.

brightness
Product 1: Polar Grit X
3.5

Brightness was sufficient outdoors and backed by a backlight, but one reviewer found the screen dim indoors without illumination.

Product 2: Garmin Approach S70
5.0

Brightness is repeatedly praised, with reviewers describing the screen as bright, crisp, colorful, and clear.

build quality
Product 1: Polar Grit X
4.1

Build quality was generally rugged and durable, but a few reviewers felt it did not look as heavy-duty or premium as some rivals.

Product 2: Garmin Approach S70
4.6

Build quality is viewed positively, with reviewers describing a lightweight, well-designed build and confidence-inspiring construction.

button controls
Product 1: Polar Grit X
4.3

Button controls were a consistent strength, with better texture, responsiveness, click feel, and glove usability than the touchscreen.

Product 2: Garmin Approach S70
4.5

Button controls are generally praised, with reviewers liking the three-button setup and easy navigation support.

call handling
Product 1: Polar Grit X
3.5

Call handling was limited to phone-call alerts rather than taking calls or advanced communication features.

Product 2: Garmin Approach S70
2.7

Call handling is limited because reviewers say the watch can show or manage calls but cannot be used to actually speak through the watch.

calorie tracking usefulness
Product 1: Polar Grit X
3.9

Calorie and energy tracking was useful for endurance planning, especially carbs, protein, fat breakdowns and FuelWise eating or drinking prompts.

Product 2: Garmin Approach S70
No score yet
charging convenience
Product 1: Polar Grit X
4.3

Charging convenience was positive, with a familiar magnetic charger that attached securely and reused earlier Polar charger compatibility.

Product 2: Garmin Approach S70
3.1

Charging convenience is mixed to negative, with reviewers repeatedly mentioning proprietary charging, USB-C adapter issues, and awkward face-down charging.

charging speed
Product 1: Polar Grit X
4.2

Charging speed evidence was limited but positive, with one reviewer measuring about an hour after a week of usage.

Product 2: Garmin Approach S70
4.5

Charging speed has limited but positive support from one reviewer who says it does not take long to fully charge.

coaching features
Product 1: Polar Grit X
4.2

Coaching features were one of the clearest strengths, including FitSpark, FuelWise, workout suggestions, and recovery-guided training recommendations.

Product 2: Garmin Approach S70
4.7

Coaching features are one of the S70’s strongest themes, with virtual caddie, PlaysLike, club suggestions, shot dispersion, and scoring advice appearing across many reviews.

comfort
Product 1: Polar Grit X
4.2

Comfort was generally good thanks to the light feel and soft strap, though some larger-watch caveats remained.

Product 2: Garmin Approach S70
4.7

Comfort is a major strength, with reviewers saying the watch disappears, sits comfortably, and does not bother them during golf or sleep.

companion app quality
Product 1: Polar Grit X
4.2

Polar Flow was repeatedly described as excellent or among the best companion apps, despite some criticisms about ease of use or dated visuals.

Product 2: Garmin Approach S70
4.5

Companion app quality is generally positive, especially Garmin Golf for round data, stats, and ecosystem value, with setup requirements noted.

contactless payments
Product 1: Polar Grit X
1.0

Contactless payment support was absent in the reviewed evidence.

Product 2: Garmin Approach S70
3.7

Contactless payments are available through Garmin Pay, but evidence is mixed because bank support and setup can be limiting in some regions.

cross-platform compatibility
Product 1: Polar Grit X
4.3

Cross-platform evidence was limited but positive, with Polar Flow available for both Android and iOS.

Product 2: Garmin Approach S70
4.2

Cross-platform compatibility is positive overall because the watch pairs with iPhone and Android, though notification controls differ by platform.

customization options
Product 1: Polar Grit X
4.3

Customization was a plus for sport data fields and power-saving options.

Product 2: Garmin Approach S70
4.6

Customization is strong, with reviewers noting data fields, colors, golf settings, watch faces, and movable pin or flag controls.

display quality
Product 1: Polar Grit X
3.7

Display quality was adequate and functional rather than premium, with a transflective screen, good clarity, and a sport-watch feel.

Product 2: Garmin Approach S70
4.8

Display quality is the strongest consensus attribute: reviewers repeatedly praise the AMOLED screen’s sharpness, clarity, color, and impact on maps.

durability
Product 1: Polar Grit X
4.4

Durability evidence was positive, including MIL-STD testing and long-term use that still looked brand new.

Product 2: Garmin Approach S70
4.5

Durability has limited direct support but is positive where mentioned, with the scratch-proof lens cited.

fit
Product 1: Polar Grit X
3.8

Fit was mostly comfortable and light, but one reviewer noted the need to find the right strap tightness for sensor accuracy and comfort.

Product 2: Garmin Approach S70
4.7

Fit is positive, helped by wrist comfort, swing clearance, and the smaller 42mm option for users who found larger cases too big.

fitness tracking accuracy
Product 1: Polar Grit X
4.0

Fitness tracking accuracy was generally solid in the detailed testing evidence, with recorded distances coming out fairly similar across devices.

Product 2: Garmin Approach S70
4.4

Fitness and shot-tracking accuracy is mostly positive, with reviewers praising Garmin-level sensor accuracy and convenient data, though some note shot-tracking limitations.

GPS accuracy
Product 1: Polar Grit X
4.2

GPS accuracy was usually described as solid, snappy, or spot-on, though the exact margin varied by terrain and testing context.

Product 2: Garmin Approach S70
4.8

GPS and yardage accuracy are consistently praised, including quick GPS lock, accurate yardages, and close agreement with rangefinder-style measurements.

health tracking accuracy
Product 1: Polar Grit X
4.1

Reviewers found general health data useful, especially continuous heart-rate context, but evidence centered on heart and sleep rather than clinical health metrics.

Product 2: Garmin Approach S70
4.5

Reviewers describe broad health tracking as useful and Garmin-level accurate, especially when combining sleep, stress, heart rate, pulse ox, and fitness metrics.

heart rate accuracy
Product 1: Polar Grit X
3.8

Heart-rate feedback was often praised as close to straps or other devices, but several reviewers saw lag or random spikes during harder efforts.

Product 2: Garmin Approach S70
4.4

Heart rate appears as part of the S70’s fitness and wellness tracking, with reviewers treating it as a useful everyday metric rather than a golf-only add-on.

mapping and navigation
Product 1: Polar Grit X
No score yet
Product 2: Garmin Approach S70
4.8

Mapping and navigation are a major strength, with detailed hole maps, hazard views, pin movement, blind-shot tools, and full-color course layouts repeatedly praised.

materials quality
Product 1: Polar Grit X
4.2

Materials quality was strong, with stainless steel, Gorilla Glass or sapphire-glass evidence, and scratch-resistant construction mentioned.

Product 2: Garmin Approach S70
4.7

Materials quality is positive in the available evidence, especially the ceramic bezel and premium-feeling build.

menu navigation
Product 1: Polar Grit X
3.2

Menu navigation was mixed, with clear route and menu structures in some cases but clunky multisport flow and sparse maps in others.

Product 2: Garmin Approach S70
3.9

Menu navigation is mixed: several reviews praise simple starts and quick menus, while touch-heavy hole navigation frustrates one reviewer.

music controls
Product 1: Polar Grit X
1.1

Music controls and Spotify-style support were absent, a repeated limitation for users wanting lifestyle smartwatch features.

Product 2: Garmin Approach S70
3.6

Music controls are present, but reviewers split between liking access and finding Garmin’s menu path less convenient than Apple Watch behavior.

onboard music storage
Product 1: Polar Grit X
1.0

Onboard music storage was absent in the reviewed evidence.

Product 2: Garmin Approach S70
4.5

Onboard music storage is a clear plus, with multiple reviewers noting downloaded songs or playlists from services such as Spotify or Amazon Music.

operating system experience
Product 1: Polar Grit X
3.7

The operating experience was generally usable and button-friendly, but some settings changes depended heavily on the phone app.

Product 2: Garmin Approach S70
3.2

Operating system experience is mixed: one reviewer finds Garmin software mostly intuitive, while another says the OS hurts enjoyment on the course.

outdoor visibility
Product 1: Polar Grit X
4.0

Outdoor visibility was mostly good in bright light, though one outdoor-focused reviewer reported reflections and readability challenges.

Product 2: Garmin Approach S70
4.9

Outdoor visibility is excellent across reviews, with several reviewers saying bright sunlight or sun glare did not prevent easy reading.

pairing reliability
Product 1: Polar Grit X
3.8

Pairing could be easy during initial setup, but route syncing was not always immediate, so reliability was mixed by use case.

Product 2: Garmin Approach S70
5.0

Pairing reliability has limited but positive evidence, with one reviewer calling phone pairing straightforward through Garmin’s apps.

recovery insights
Product 1: Polar Grit X
4.3

Recovery tools were a major strength, with Nightly Recharge, Cardio Load, Training Load Pro, HRV, and FitSpark repeatedly tied to workout readiness.

Product 2: Garmin Approach S70
4.0

Recovery insight evidence is limited but supported by HRV readiness language, tying recovery-style feedback to sleep and heart-rate variability.

reliability
Product 1: Polar Grit X
3.5

Reliability was generally acceptable but not perfect, with reviewers noting minor bugs, outdoor limitations, and a need for refinement.

Product 2: Garmin Approach S70
4.1

Reliability is mixed: GPS/course lock and battery endurance are praised, but one reviewer reports missed shot detections.

safety features
Product 1: Polar Grit X
2.0

Safety-feature evidence was weak because one outdoor reviewer specifically missed weather warnings.

Product 2: Garmin Approach S70
4.0

Safety features have limited support, with one guide noting an assistance/fall-detection-style safety feature.

size options
Product 1: Polar Grit X
4.0

Size options were documented through small/medium and medium/large versions.

Product 2: Garmin Approach S70
4.7

Size options are widely praised because the S70 offers both smaller and larger versions, though color choices are limited in some reviews.

sleep tracking accuracy
Product 1: Polar Grit X
4.1

Sleep tracking was broadly useful and sometimes accurate, though one review noted false sleep detection during quiet sofa time.

Product 2: Garmin Approach S70
4.3

Sleep tracking gets frequent attention, with reviewers noting sleep scores, deep sleep or REM data, and morning feedback, though one reviewer questions how helpful the messaging feels.

smartphone notifications
Product 1: Polar Grit X
3.4

Notifications worked, including app and phone alerts, but reviewers noted delays, read-only behavior, and less effortless handling than rivals.

Product 2: Garmin Approach S70
3.6

Notifications are useful but mixed: reviewers like seeing messages and alerts, yet some call them distracting or limited for replies and conversation flow.

smartwatch features
Product 1: Polar Grit X
2.2

Smartwatch features were intentionally minimal, with reviewers repeatedly noting the training-first focus and the absence of apps, music, and payments.

Product 2: Garmin Approach S70
4.1

Smartwatch features are strong for a golf watch, but reviewers still flag limitations compared with dedicated Apple or Android smartwatches.

software smoothness
Product 1: Polar Grit X
3.2

Software smoothness was mixed: syncing could take time and one reviewer felt Polar Flow graphics looked dated.

Product 2: Garmin Approach S70
2.4

Software smoothness is a noted weakness in limited evidence, especially around pan-and-zoom behavior on the course.

step counting accuracy
Product 1: Polar Grit X
2.4

Step counting drew a clear concern in one review, which reported major over-reporting during low-activity periods.

Product 2: Garmin Approach S70
4.2

Step counting is mentioned positively in limited evidence, mainly as an advanced counter one reviewer found useful.

stress tracking
Product 1: Polar Grit X
4.0

Stress tracking evidence comes from the guided Serene breathing feature and recovery/stress context rather than a broad stress dashboard.

Product 2: Garmin Approach S70
4.1

Stress tracking is widely mentioned; some reviewers found it surprisingly accurate or habit-changing, while one reviewer considered it less valuable.

style and design
Product 1: Polar Grit X
4.2

Style and design were usually praised as attractive, premium, or well-designed, even when not as rugged-looking as some competitors.

Product 2: Garmin Approach S70
4.8

Style and design are positive, with reviewers calling the S70 stylish, modern, and suitable beyond the course.

third-party app support
Product 1: Polar Grit X
3.6

Third-party support was mixed: Strava and related services were useful, but importing outside workout files into Polar Flow was a notable gap.

Product 2: Garmin Approach S70
4.4

Third-party app support is useful but not always seamless, with Connect IQ and downloadable apps/features appearing as the main support path.

touchscreen responsiveness
Product 1: Polar Grit X
2.5

Touchscreen responsiveness was a repeated weakness, with reviewers calling it laggy, imprecise, or unreliable with wet hands.

Product 2: Garmin Approach S70
4.0

Touchscreen responsiveness is mixed: some reviewers find it good or responsive, while others find on-course panning and zooming fiddly.

user interface
Product 1: Polar Grit X
4.2

The core user interface was praised as logical and easy to navigate, especially with the physical buttons.

Product 2: Garmin Approach S70
2.5

User interface evidence is limited but negative where cited, focused on the touchscreen interface feeling fiddly during golf use.

value for money
Product 1: Polar Grit X
4.2

Value was frequently praised because the watch delivered deep training and outdoor features for less than several major rivals.

Product 2: Garmin Approach S70
3.9

Value for money is mixed but generally favorable for advanced golfers: reviewers praise value if using the full feature set, while warning basic-yardage users can spend less.

watch face quality
Product 1: Polar Grit X
3.9

Watch face and widget quality was strongest for the weather face, though some weather information depended on phone connectivity.

Product 2: Garmin Approach S70
4.6

Watch face quality is well supported, with reviewers praising built-in faces, Connect IQ options, and the AMOLED screen making faces look better.

water resistance
Product 1: Polar Grit X
4.5

Water resistance was a strong point, with repeated evidence of 100m or 328-foot waterproofing.

Product 2: Garmin Approach S70
4.7

Water resistance is positive, with reviewers citing 5 ATM or 50-meter ratings and shower/swim use.

wellness insights
Product 1: Polar Grit X
4.6

Wellness insights were praised for going beyond basic activity tracking through sleep, recovery, training load, and nutrition context.

Product 2: Garmin Approach S70
4.7

Wellness insights are a major differentiator, especially Body Battery, sleep, stress, energy, and Garmin’s explanations of what the metrics mean.

Wi-Fi connectivity
Product 1: Polar Grit X
No score yet
Product 2: Garmin Approach S70
4.0

Wi-Fi connectivity is lightly supported by setup/menu evidence showing the watch can connect to Wi-Fi for updates.

workout tracking variety
Product 1: Polar Grit X
4.5

Workout variety was consistently strong, with reviewers citing 20 onboard sport slots, more than 130 profiles, triathlon use, and broad sport coverage.

Product 2: Garmin Approach S70
4.5

Workout variety is a clear strength, with reviewers citing running, cycling, swimming, yoga, skiing, pickleball, and other activity modes.