
Fitbit Sense 2
Score: 82/100
Apple Watch Series 9
Score: 82/100Rankings

The Fitbit Sense 2 is a health-focused smartwatch offering ECG, stress monitoring, skin-temperature tracking and solid GPS capabilities with a 6-day battery life. Limitations include regional ECG availability, lack of Wi-Fi and modest music storage. Best for users who prioritize advanced health metrics over extensive media features.

The Apple Watch Series 9 GPS 41 mm offers a dazzling 2000-nit always-on OLED display, advanced health sensors including ECG and blood-oxygen, and seamless iPhone integration. Its battery lasts only about 18 hours, requiring daily charging, and it lacks cellular connectivity in the GPS-only model. Best suited for iPhone users seeking premium health features and safety tools.
| Attribute | ![]() | ![]() |
|---|---|---|
144 hoursbest | 18 hours | |
40.1 mmbest | — | |
| ↓ lower better | 190.5 g | 31.9 gbest |
| ↓ lower better | 12 minutesbest | — |
40best | — | |
4 GB | 64 GBbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Build & Design(1) | ||
Weight (g) | 190.5 g | 31.9 g |
Battery & Power(1) | ||
Battery Life (hours) | 144 hours | 18 hours |
Display(2) | ||
Display Resolution | 336x336 | 352x430 |
Display Type | AMOLED | OLED |
Connectivity(1) | ||
Bluetooth Version | Bluetooth LE | 5.3 |
Storage(1) | ||
Storage Capacity (GB) | 4 GB | 64 GB |


Products in the top-left offer the best value (high score, low price).

Professional reviewers highlight the Sense's advanced health toolkit—cEDA stress monitoring, skin temperature tracking, and SpO2 measurement—as innovative steps beyond typical fitness trackers, while noting the limited regional availability of the ECG feature.

Professional reviewers commend the Series 9 for its dramatically brighter display, faster S9 processor, and new Precision Finding, calling it an essential companion for health-focused users, while noting it is an incremental rather than revolutionary update with unchanged battery life and no cellular option.
Everyday users love the watch's seamless iPhone sync, accurate fitness and health tracking, and bright screen for outdoor use, but many lament the need for daily charging and occasional band-fit issues on smaller wrists.