| Fitbit Charge | Polar Vantage V | |
|---|---|---|
| Pricing | ||
| Starting price | $120★ | $599 |
| Subscription | ℹ️ Optional — $79/yr | ✓ None |
| Hardware | ||
| Weight | 15g★ | 39g |
| Water resistance | 50m | 5ATM |
| Battery | 7 days | 8 days★ |
| Always-on display | ❌ | ✅★ |
| GPS | ✅ | ✅ |
| Cellular | ❌ | ❌ |
| Platform | iOS & Android | iOS & Android |
| Tier | Fitness Tracker | Sports GPS |
| Buy timing | ||
| Released | Sep 28, 2023 | Oct 4, 2023 |
| Cycle advice | bad | bad |
| Deals advice | great★ | good |
| Next model | Fitbit Charge 7 (Expected 2026) | Polar Vantage V4 (2026) |
Full ECG, electrodermal activity stress sensing, SpO2, and continuous heart rate in a tracker thinner than most smartwatches.
Google Maps navigation, Google Wallet NFC payments, and YouTube Music controls — more useful on-device apps than any previous Charge.
7 days of typical use, dropping to around 30 minutes per GPS workout session before needing a charge.
Polar Vantage V3 is one of the few sports GPS watches with on-demand ECG — usually only found on lifestyle smartwatches.
Running power measurement without a foot pod or chest strap — a significant training metric for pacing effort on hills and varied terrain.
The most detailed training load analysis in any sports watch: muscle groups targeted per session, recovery status per muscle, and long-term load trends.
The right pick depends on what you optimize for.
$357 vs $599 over 3 years · no required subscription.
8 days vs 7 days battery.
6 sensors.
15g · no required subscription.
Anyone who wants serious health and fitness tracking without the bulk or cost of a full smartwatch. Works with both Android and iPhone, making it the most accessible Fitbit tracker in the lineup.
Full details →Serious endurance athletes — particularly runners and triathletes — who want Polar's unmatched training load science and recovery guidance, combined with ECG health monitoring and running power in a premium package.
Full details →