Polar’s roots are in serious endurance training — and that means it tracks performance, recovery, and respiratory health with precision. For Stella, that’s a reliable way to flag skin stress before it shows up in the mirror.
Already using Polar? Connect in seconds to get more out of Stella.
Thinking about getting one? Here's why it matters for your skin.
Best for.
Polar tracks the strain your body’s under, even when you’re coasting. That helps Stella align recovery cues with skincare needs, from hydration dips to inflammation risks.
Endurance athletes and performance-focused users
Identifying when exertion impacts hydration or sensitivity
Reinforcing the skin barrier when recovery is lagging
Skin insights unlocked in Stella.
Training Stress
87
/100
Good
Dial up hydration and anti-inflammatory serums to counter skin stress.
Sleep Score
56
/100
Average
Use a peptide-rich night cream to boost skin recovery when sleep falls short.
Stress Score
75
/100
Moderate
Add niacinamide or adaptogens to calm inflamed skin under high-stress.
Immunity Index
88
/100
Moderate
Focus on barrier-repair ingredients like ceramides and zinc to shield your skin.
Cycle Tracking
84
/100
Good
Switch to exfoliants or oil-controlling actives before breakout-prone phases.
Nutrition/Hydration
40
/100
Attention
Use humectant-rich topicals to compensate for low water intake.
Once connected, your Polar data feeds Stella’s skin engine — giving you insight into what’s really changing and when to tweak your routine.
Training Stress
87
/100
Good
Dial up hydration and anti-inflammatory serums to counter skin stress.
Sleep
56
/100
Average
Use a peptide-rich night cream to boost skin recovery when sleep falls short.
Immunity
75
/100
Moderate
Probiotics and panthenol offer barrier support for slower healing & reactive skin.
Respiration
88
/100
Moderate
Healthy oxygen flow boosts skin clarity and repair. Add antioxidants and light cardio.
How to connect.
Your skin changes fast. Stella picks up signals you can’t see yet. We cut through the daily noise to show real trends and early warnings.
Go to Settings -> Devices in the Stella app
Your insights automatically sync to Stella
Requires a Stella Plus Membership
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