Overdue for a refresh — no successor announced yet. Prices should be at their lowest
Best for: 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 →Reaching maturity, next model expected soon
Best for: iPhone users who want the most capable smartwatch health experience available. Ideal for anyone who values medical-grade monitoring (ECG, blood pressure, SpO2), a premium always-on display, and the best Apple Watch workout tracking. If health is your priority, this is the one to get.
Full details →| Fitbit Charge | Apple Watch | |
|---|---|---|
| Tier | Fitness Tracker | Smartwatch |
| Platform | iOS & Android | iOS only |
| Battery | 7 days | 1 days |
| Always-on display | ❌ | ✅ |
| GPS | ✅ | ✅ |
| Cellular | ❌ | ✅ |
| Health sensors | ecg, spo2, eda stress, hr | ecg, spo2, skin temp, hrv, blood pressure |
| Released | Sep 28, 2023 | Sep 19, 2025 |
| Cycle length | 731 days | 364 days |
| Cycle advice | bad | neutral |
| Deals advice | good | neutral |
| Next model | — | Apple Watch Series 12 (Expected fall 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 Series 11 is the first mainstream smartwatch to offer FDA-cleared hypertension (high blood pressure) detection — a feature that could flag silent health risks.
At 9.7mm, the Series 11 is significantly slimmer than previous models — noticeably lighter on the wrist for all-day and sleep tracking.
On-demand ECG, continuous blood oxygen monitoring, and sleep apnea detection (FDA-cleared) make this one of the most medically relevant consumer wearables available.