| COROS Vertix | Fitbit Charge | |
|---|---|---|
| Pricing | ||
| Starting price | $699 | $120★ |
| Subscription | ✓ None | ℹ️ Optional — $79/yr |
| Hardware | ||
| Weight | 73g | 15g★ |
| Water resistance | 10ATM★ | 50m |
| Battery | 140 days★ | 7 days |
| Always-on display | ❌ | ❌ |
| GPS | ✅ | ✅ |
| Cellular | ❌ | ❌ |
| Platform | iOS & Android | iOS & Android |
| Tier | Sports GPS | Fitness Tracker |
| Buy timing | ||
| Released | Oct 1, 2023 | Sep 28, 2023 |
| Cycle advice | bad | bad |
| Deals advice | good | great★ |
| Next model | COROS Vertix 3 (2026 or 2027) | Fitbit Charge 7 (Expected 2026) |
No other GPS watch currently on the market delivers 140 hours of GPS tracking — enough for most ultra-endurance events and multi-day mountain traverses.
GPS + GLONASS + Galileo + BeiDou + QZSS with dual-frequency reduces error in challenging terrain to near-meter precision.
Military-grade scratch and impact resistance for the harshest environments: extreme altitude, cold, and sustained physical stress.
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.
The right pick depends on what you optimize for.
$357 vs $699 over 3 years · no required subscription.
140 days vs 7 days battery.
6 sensors.
15g · no required subscription.
Expedition athletes, mountaineers, and ultra-endurance competitors who do multi-day or multi-week events where charging is impossible. If you need GPS tracking for 140 continuous hours, no other watch comes close.
Full details →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 →