| Fitbit Charge | COROS Apex | |
|---|---|---|
| Pricing | ||
| Starting price | $120★ | $429 |
| Subscription | ℹ️ Optional — $79/yr | ✓ None |
| Hardware | ||
| Weight | 15g★ | 40g |
| Water resistance | 50m | 5ATM |
| Battery | 7 days | 24 days★ |
| Always-on display | ❌ | ❌ |
| GPS | ✅ | ✅ |
| Cellular | ❌ | ❌ |
| Platform | iOS & Android | iOS & Android |
| Tier | Fitness Tracker | Sports GPS |
| Buy timing | ||
| Released | Sep 28, 2023 | Oct 15, 2025 |
| Cycle advice | bad | good★ |
| Deals advice | great★ | neutral |
| Next model | Fitbit Charge 7 (Expected 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.
The 46mm Apex 4 delivers 65 hours of GPS tracking and 24 days typical use — enough for multi-day mountain events without charging. The 42mm offers 41h GPS and 15 days.
Global topographic maps with instant rendering, turn-by-turn navigation, POIs, and an underwater depth gauge — the Apex 4 is the first COROS mid-tier with a depth sensor.
Audio alerts, hands-free calling, and voice pin recording — a first for the Apex line, adding practical trail and daily-wear convenience to this mountain sports watch.
The right pick depends on what you optimize for.
$357 vs $429 over 3 years · no required subscription.
24 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 →Trail runners, ultramarathon athletes, and multisport competitors who want full offline maps and long GPS battery without paying Vertix 2S prices. The speaker and depth gauge make the Apex 4 more capable than any previous Apex for mixed adventure and triathlon use.
Full details →