Other features
Activity auto-detection
Polar Street XNo score yet
Garmin Instinct Crossover AMOLED
4.5
One reviewer praised automatic multisport transitions as useful for triathletes and mixed-activity workouts.
Data privacy
Polar Street X
4.5
Data privacy was praised by one reviewer as a reason to consider Polar, especially for European users.
Garmin Instinct Crossover AMOLEDNo score yet
ECG functionality
Polar Street X
1.5
ECG was also a limitation: reviewers framed the missing ECG sensor as understandable at the price but still a downside for users who prioritize health metrics.
Garmin Instinct Crossover AMOLEDNo score yet
Safety features
Polar Street X
4.5
Safety features were supported mainly by the flashlight making the wearer more visible to traffic.
Garmin Instinct Crossover AMOLEDNo score yet
Controls and connectivity
App ecosystem
Polar Street X
3.0
The ecosystem was a recurring caveat because reviewers said Garmin still leads in ecosystem depth and polish.
Garmin Instinct Crossover AMOLEDNo score yet
Review contexts may differ, so use caution when interpreting the score gap.
Menu navigation
Polar Street XNo score yet
Garmin Instinct Crossover AMOLED
3.0
Menu navigation was a recurring weak spot, ranging from second nature after learning to slow, fiddly, or trial-and-error.
Music controls
Polar Street XNo score yet
Garmin Instinct Crossover AMOLED
3.2
Music controls were available but treated as a minor phone-control convenience rather than a standout feature.
Onboard music storage
Polar Street XNo score yet
Garmin Instinct Crossover AMOLED
2.0
Onboard music storage was a clear limitation because reviewers stated music cannot be loaded onto the watch.
Smartphone notifications
Polar Street XNo score yet
Garmin Instinct Crossover AMOLED
4.5
Smartphone notifications were viewed positively when restrained and practical, especially for checking messages and calls without phone use.
Watch face quality
Polar Street XNo score yet
Garmin Instinct Crossover AMOLED
4.5
Watch faces were praised for making good use of the AMOLED screen and analog hands, including dynamic and playful effects.
Tracking and training
Blood oxygen tracking
Polar Street X
1.5
Blood oxygen was a clear limitation because reviewers noted the Street X lacks SpO2 measurement, especially compared with what similarly priced watches often include.
Garmin Instinct Crossover AMOLEDNo score yet
Body temperature tracking
Polar Street X
3.5
Body temperature tracking was treated as a nice-to-have rather than a major deciding feature.
Garmin Instinct Crossover AMOLEDNo score yet
Health tracking accuracy
Polar Street XNo score yet
Garmin Instinct Crossover AMOLED
4.5
Health tracking was viewed positively where Body Battery matched how the reviewer actually felt.