
Garmin Forerunner 55
Score: 80/100
Fitbit Sense 2
Score: 83/100Rankings

The Fitbit Sense 2 is a premium health-focused smartwatch offering comprehensive sensors like ECG, skin temperature, and SpO₂ alongside built-in GPS and up to six days of battery life. Its heavier weight and lack of Wi-Fi connectivity limit its appeal for users seeking a lighter, more standalone device. Ideal for health-conscious athletes who value deep analytics.

The Garmin Forerunner 55 is an entry-level GPS running smartwatch offering up to two weeks of battery life and a lightweight 37 g design. It lacks advanced sensors such as SpO₂ and music playback, focusing on core running features. Best for beginner and recreational runners who prioritize simplicity and endurance.
| Attribute | ![]() | ![]() |
|---|---|---|
336 hoursbest | 144 hours | |
| ↓ lower better | 37 gbest | 190.5 g |
— | 336 pxbest | |
1.04 in | 1.58 inbest | |
— | 40best |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Battery & Power(2) | ||
Battery Life (hours) | 336 hours | 144 hours |
Battery Type | Lithium-ion | Lithium-polymer |
Build & Design(2) | ||
Weight (g) | 37 g | 190.5 g |
Water Resistance (IP Rating) | 5 ATM | 5ATM |
Display(3) | ||
Screen Size (in) | 1.04 in | 1.58 in |
Display Type | MIP | AMOLED |
Resolution (px) | 208x208 px | 336 px |


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

Professional reviewers consider the Forerunner 55 a well-rounded, budget-friendly entry-level running watch. They commend its long battery life, clear display, and reliable wrist-based heart-rate monitoring, while noting the lack of advanced sensors and limited data customization as trade-offs for its price point.

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.