Average score
Product 1: Polar Street X
3.7
Product 2: Garmin Lily 2 Active
4.1
app ecosystem
Product 1: Polar Street X
2.8

One comparison-heavy review says Garmin still has the stronger ecosystem, so the Street X competes more on simplicity and value than platform depth.

Product 2: Garmin Lily 2 Active
4.2

One review describes Garmin’s wellness ecosystem as comprehensive, especially for turning health data into useful summaries.

band quality
Product 1: Polar Street X
4.2

The strap setup looks solid, with easy swapping and a texture one reviewer specifically liked.

Product 2: Garmin Lily 2 Active
4.8

The silicone band is described positively for comfort and feel.

battery life
Product 1: Polar Street X
4.5

Battery life is one of the headline strengths, with claims and testing clustering around roughly a week-plus of heavy use or up to 10 days in smartwatch mode.

Product 2: Garmin Lily 2 Active
4.4

Battery life is widely praised, with most reviews citing around nine days and some testers stretching well beyond a week.

blood oxygen tracking
Product 1: Polar Street X
1.0

Multiple reviews explicitly note that the Street X does not include SpO2 hardware, making blood-oxygen tracking a clear omission.

Product 2: Garmin Lily 2 Active
4.4

Pulse Ox is present and generally viewed positively, with one reviewer calling the SpO2 readings spot-on.

Bluetooth connectivity
Product 1: Polar Street X
No score yet
Product 2: Garmin Lily 2 Active
4.2

Bluetooth support is consistently mentioned for sensor links, heart-rate broadcasting, and phone connectivity.

brightness
Product 1: Polar Street X
4.0

Brightness lands in the solid-not-exceptional range: around 1,000 nits and generally good enough, but not class-leading.

Product 2: Garmin Lily 2 Active
2.8

One reviewer said the screen can be hard to read in very bright conditions, even at maximum brightness.

build quality
Product 1: Polar Street X
4.4

Build quality gets favorable comments for its rugged, protective construction, even if it is not luxurious.

Product 2: Garmin Lily 2 Active
4.2

The move from a plastic case to a metal case is presented as a quality upgrade.

button controls
Product 1: Polar Street X
4.2

Button controls are a strength, with large, textured, easy-grip hardware repeatedly called out.

Product 2: Garmin Lily 2 Active
4.8

The new physical buttons are one of the most praised upgrades, especially for workouts and easier navigation.

calorie tracking usefulness
Product 1: Polar Street X
No score yet
Product 2: Garmin Lily 2 Active
3.0

Calorie data is available, but one review said calories burned ran slightly off compared with another watch.

charging convenience
Product 1: Polar Street X
4.2

Charging is convenient for existing Polar owners because it uses the same USB-C-based charger as newer siblings.

Product 2: Garmin Lily 2 Active
4.6

Charging is improved by the standard Garmin cable or simple magnetic setup, and reviewers call the new approach more convenient.

charging speed
Product 1: Polar Street X
No score yet
Product 2: Garmin Lily 2 Active
4.5

Charging speed is good, with reviewers reporting roughly a full charge in about an hour.

coaching features
Product 1: Polar Street X
4.4

Coaching is built around training analysis, Training Load Pro, and a daily suggested workout rather than just passive data collection.

Product 2: Garmin Lily 2 Active
4.7

Garmin Coach and structured workouts are widely praised for offering guided plans and flexible goal-based training.

comfort
Product 1: Polar Street X
4.4

Comfort is a recurring strength because the watch stays light enough for all-day wear despite its rugged look.

Product 2: Garmin Lily 2 Active
4.9

Comfort is a standout strength, with reviewers repeatedly saying the watch is light, easy to sleep in, and easy to forget on the wrist.

companion app quality
Product 1: Polar Street X
2.5

The companion app is a recurring complaint, described as outdated and not great for quick health and fitness overviews.

Product 2: Garmin Lily 2 Active
3.5

Garmin Connect gets mixed marks: reviewers praised setup and data usefulness, but one found the app less clear than it could be.

contactless payments
Product 1: Polar Street X
No score yet
Product 2: Garmin Lily 2 Active
4.2

Garmin Pay is repeatedly noted as convenient and easy for on-the-go payments.

cross-platform compatibility
Product 1: Polar Street X
No score yet
Product 2: Garmin Lily 2 Active
4.5

One review explicitly says the watch works with both iOS and Android phones.

customization options
Product 1: Polar Street X
4.1

Customization is decent through quick-release straps, swappable bands, and configurable widgets or complications.

Product 2: Garmin Lily 2 Active
4.2

Reviews note good customization for watch faces, widgets, data pages, training plans, and notifications, even if flexibility is not unlimited everywhere.

display quality
Product 1: Polar Street X
4.3

Display quality is a consistent plus, with the AMOLED screen repeatedly described as nice, crisp, sharp, and easy to read.

Product 2: Garmin Lily 2 Active
4.3

The hidden monochrome display earns praise for clarity and contrast, though it remains intentionally simple rather than rich or colorful.

durability
Product 1: Polar Street X
4.5

Durability is one of the clearest strengths thanks to rugged construction, MIL-STD testing, and WR50 protection.

Product 2: Garmin Lily 2 Active
3.5

Durability impressions are mixed, with Gorilla Glass noted positively but aluminum scratch resistance called out as a weakness.

ECG functionality
Product 1: Polar Street X
1.0

ECG is repeatedly listed as missing, so buyers wanting wrist-based electrocardiogram features will need a different watch.

Product 2: Garmin Lily 2 Active
1.0

Reviews explicitly note that the Lily 2 Active does not include ECG support.

fit
Product 1: Polar Street X
3.4

Fit is mixed: the low weight helps, but there is only one case size.

Product 2: Garmin Lily 2 Active
4.8

The compact size and lightweight build earn strong praise for smaller wrists and all-day wear.

fitness tracking accuracy
Product 1: Polar Street X
4.2

The one detailed hands-on accuracy review says overall fitness-tracking accuracy was good across the sports it tested.

Product 2: Garmin Lily 2 Active
4.7

General fitness tracking is reviewed very positively, with performance described as accurate and comparable to pricier Garmin models.

GPS accuracy
Product 1: Polar Street X
4.2

GPS looked very good in the hands-on testing, though the same review still notes a few minor exceptions in certain route scenarios.

Product 2: Garmin Lily 2 Active
4.7

GPS is a standout strength, with multiple reviews calling it accurate, fast to connect, and very close to higher-end Garmin devices.

health tracking accuracy
Product 1: Polar Street X
3.2

Health readouts seem directionally useful, but the hands-on review warns not to treat the watch's sleep analysis as something to fully rely on.

Product 2: Garmin Lily 2 Active
No score yet
heart rate accuracy
Product 1: Polar Street X
4.1

Heart-rate performance is generally described as good, with one detailed test review finding it accurate and other reviews calling the sensor pretty good or more consistent during workouts.

Product 2: Garmin Lily 2 Active
4.4

Multiple reviews say heart-rate tracking was very solid or spot-on, with only minor lag during quick changes in effort.

materials quality
Product 1: Polar Street X
3.3

Materials keep weight down but feel less premium, since the case leans heavily on plastic or composite parts and skips metal accents.

Product 2: Garmin Lily 2 Active
3.6

Materials get mixed feedback: Gorilla Glass and aluminum are appreciated, but one reviewer still viewed the aluminum as easier to scratch than pricier materials.

menu navigation
Product 1: Polar Street X
4.0

Menu navigation appears straightforward enough for scrolling through widgets and daily/training details without much friction.

Product 2: Garmin Lily 2 Active
4.2

Menus and widget navigation are generally viewed as straightforward, with swipes and buttons making the watch easier to move around.

music controls
Product 1: Polar Street X
3.8

Music controls are included, but only as part of the basic smart-feature bundle.

Product 2: Garmin Lily 2 Active
4.0

Phone-based music controls work well for basic playback tasks like volume and track skipping.

onboard music storage
Product 1: Polar Street X
No score yet
Product 2: Garmin Lily 2 Active
1.0

Multiple reviews explicitly say there is no onboard music storage, so you still need your phone for music.

operating system experience
Product 1: Polar Street X
3.5

The proprietary Polar operating system is described as solid overall, though not especially refreshed or modernized.

Product 2: Garmin Lily 2 Active
No score yet
outdoor visibility
Product 1: Polar Street X
3.9

Outdoor visibility is mostly positive, though one reviewer warns it may not be ideal in the brightest sunlight.

Product 2: Garmin Lily 2 Active
4.8

One review specifically said the screen stayed readable outdoors, even in direct sunlight.

pairing reliability
Product 1: Polar Street X
No score yet
Product 2: Garmin Lily 2 Active
4.4

Pairing is described as easy and dependable for phones and supported external sensors.

recovery insights
Product 1: Polar Street X
4.4

Recovery guidance is one of the stronger themes, with reviews highlighting workout-load feedback, Nightly Recharge, and prompts about whether training is on track.

Product 2: Garmin Lily 2 Active
4.3

HRV, Body Battery, Training Readiness, and related guidance give useful signals about recovery and when to push or rest.

reliability
Product 1: Polar Street X
4.2

One review positions the Street X around reliable tracking and dependable everyday use rather than feature overload.

Product 2: Garmin Lily 2 Active
4.8

One reviewer explicitly described the watch as very reliable during GPS use.

safety features
Product 1: Polar Street X
4.5

Safety utility centers on the integrated flashlight, with repeated mentions of better visibility after dark and both white and red light modes.

Product 2: Garmin Lily 2 Active
4.6

Incident detection, fall alerts, and emergency contact sharing are repeatedly mentioned as reassuring safety features.

size options
Product 1: Polar Street X
2.0

Choice is limited here because the Street X is sold in only one case size.

Product 2: Garmin Lily 2 Active
No score yet
sleep tracking accuracy
Product 1: Polar Street X
3.0

Sleep tracking can reflect better and worse nights, but one reviewer still calls Polar's sleep-stage performance mediocre compared with the best sleep-focused devices.

Product 2: Garmin Lily 2 Active
4.5

Reviewers consistently said the watch nailed sleep and wake timing and caught wake-ups well, though one review still wanted deeper sleep-stage detail.

smartphone notifications
Product 1: Polar Street X
3.5

Phone alerts for calls and messages are present, but reviews frame them as basic smartphone support rather than a headline feature.

Product 2: Garmin Lily 2 Active
4.4

The watch reliably mirrors smartphone notifications, with support for calls, texts, and app alerts.

smartwatch features
Product 1: Polar Street X
3.9

Smart features cover the essentials, but the watch is still presented as fitness-first and somewhat limited on the broader smartwatch side.

Product 2: Garmin Lily 2 Active
4.2

Core smartwatch basics are here, including notifications, music control, and Garmin Pay, but the feature set stays focused rather than expansive.

software smoothness
Product 1: Polar Street X
2.5

Software smoothness is a weak point, with one reviewer explicitly calling the experience sluggish.

Product 2: Garmin Lily 2 Active
4.5

One review says day-to-day swiping and opening apps feels smooth.

step counting accuracy
Product 1: Polar Street X
No score yet
Product 2: Garmin Lily 2 Active
4.2

One reviewer found step counts close in casual testing, though arm-free walking can still miss steps.

stress tracking
Product 1: Polar Street X
No score yet
Product 2: Garmin Lily 2 Active
4.2

Stress tracking is included across reviews and is described as useful for understanding energy and daily load.

style and design
Product 1: Polar Street X
4.2

Styling is widely seen as a positive if you like the rugged G-Shock or Instinct-like look, though it is bulkier than Polar's usual aesthetic.

Product 2: Garmin Lily 2 Active
4.8

Style is one of the biggest selling points, with reviewers consistently praising the fashionable, minimalist look.

third-party app support
Product 1: Polar Street X
No score yet
Product 2: Garmin Lily 2 Active
4.2

Reviews confirm syncing and compatibility with third-party services such as Strava, TrainingPeaks, and similar fitness platforms.

touchscreen responsiveness
Product 1: Polar Street X
No score yet
Product 2: Garmin Lily 2 Active
2.2

Touch input is the clearest weakness in the reviews, with repeated complaints about touches not registering cleanly.

user interface
Product 1: Polar Street X
3.3

User-interface feedback is mixed: it is simple and easy to understand, but several reviews still describe it as dated or not ideal for quick overviews.

Product 2: Garmin Lily 2 Active
4.2

One reviewer describes the interface as very simple to swipe through and interact with.

value for money
Product 1: Polar Street X
4.7

Value is a major selling point across nearly every review, which repeatedly calls the Street X affordable, competitive, and one of the best-value options in its class.

Product 2: Garmin Lily 2 Active
3.7

Value is mixed but mostly positive: several reviews say the added GPS and upgrades justify the price, while others think rivals offer more for similar money.

watch face quality
Product 1: Polar Street X
4.0

Watch-face selection is described as numerous, giving users a fair amount of choice even if it is not treated as a signature feature.

Product 2: Garmin Lily 2 Active
3.3

Watch face options get mixed feedback: the designs suit the look of the watch, but several reviewers wanted more variety or more color.

water resistance
Product 1: Polar Street X
4.0

Water resistance is consistently listed at WR50 or 50 meters, enough for common sports-watch use but not pitched as a dive tool.

Product 2: Garmin Lily 2 Active
4.5

One review states the watch is water resistant to 5 ATM.

wellness insights
Product 1: Polar Street X
4.2

Wellness coverage goes beyond raw sleep logs, with repeated mentions of HRV, skin temperature, recovery metrics, and alertness/readiness-style insight.

Product 2: Garmin Lily 2 Active
4.5

Body Battery, sleep scores, hormone guidance, and other wellness summaries are a major strength and frequently described as useful.

workout tracking variety
Product 1: Polar Street X
4.8

Workout variety is a clear strength, with repeated mentions of 170-plus sport profiles and extras such as multisport and open-water swimming.

Product 2: Garmin Lily 2 Active
4.6

Reviews repeatedly highlight the wide range of sport profiles and workout modes, with the Active adding many more than earlier Lily models.